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var app = (function () {
    'use strict';

    function noop() { }
    function assign(tar, src) {
        // @ts-ignore
        for (const k in src)
            tar[k] = src[k];
        return tar;
    }
    function add_location(element, file, line, column, char) {
        element.__svelte_meta = {
            loc: { file, line, column, char }
        };
    }
    function run(fn) {
        return fn();
    }
    function blank_object() {
        return Object.create(null);
    }
    function run_all(fns) {
        fns.forEach(run);
    }
    function is_function(thing) {
        return typeof thing === 'function';
    }
    function safe_not_equal(a, b) {
        return a != a ? b == b : a !== b || ((a && typeof a === 'object') || typeof a === 'function');
    }
    let src_url_equal_anchor;
    function src_url_equal(element_src, url) {
        if (!src_url_equal_anchor) {
            src_url_equal_anchor = document.createElement('a');
        }
        src_url_equal_anchor.href = url;
        return element_src === src_url_equal_anchor.href;
    }
    function is_empty(obj) {
        return Object.keys(obj).length === 0;
    }
    function validate_store(store, name) {
        if (store != null && typeof store.subscribe !== 'function') {
            throw new Error(`'${name}' is not a store with a 'subscribe' method`);
        }
    }
    function subscribe(store, ...callbacks) {
        if (store == null) {
            return noop;
        }
        const unsub = store.subscribe(...callbacks);
        return unsub.unsubscribe ? () => unsub.unsubscribe() : unsub;
    }
    function component_subscribe(component, store, callback) {
        component.$$.on_destroy.push(subscribe(store, callback));
    }
    function create_slot(definition, ctx, $$scope, fn) {
        if (definition) {
            const slot_ctx = get_slot_context(definition, ctx, $$scope, fn);
            return definition[0](slot_ctx);
        }
    }
    function get_slot_context(definition, ctx, $$scope, fn) {
        return definition[1] && fn
            ? assign($$scope.ctx.slice(), definition[1](fn(ctx)))
            : $$scope.ctx;
    }
    function get_slot_changes(definition, $$scope, dirty, fn) {
        if (definition[2] && fn) {
            const lets = definition[2](fn(dirty));
            if ($$scope.dirty === undefined) {
                return lets;
            }
            if (typeof lets === 'object') {
                const merged = [];
                const len = Math.max($$scope.dirty.length, lets.length);
                for (let i = 0; i < len; i += 1) {
                    merged[i] = $$scope.dirty[i] | lets[i];
                }
                return merged;
            }
            return $$scope.dirty | lets;
        }
        return $$scope.dirty;
    }
    function update_slot_base(slot, slot_definition, ctx, $$scope, slot_changes, get_slot_context_fn) {
        if (slot_changes) {
            const slot_context = get_slot_context(slot_definition, ctx, $$scope, get_slot_context_fn);
            slot.p(slot_context, slot_changes);
        }
    }
    function get_all_dirty_from_scope($$scope) {
        if ($$scope.ctx.length > 32) {
            const dirty = [];
            const length = $$scope.ctx.length / 32;
            for (let i = 0; i < length; i++) {
                dirty[i] = -1;
            }
            return dirty;
        }
        return -1;
    }
    function null_to_empty(value) {
        return value == null ? '' : value;
    }
    function set_store_value(store, ret, value) {
        store.set(value);
        return ret;
    }

    const globals = (typeof window !== 'undefined'
        ? window
        : typeof globalThis !== 'undefined'
            ? globalThis
            : global);
    function append(target, node) {
        target.appendChild(node);
    }
    function insert(target, node, anchor) {
        target.insertBefore(node, anchor || null);
    }
    function detach(node) {
        if (node.parentNode) {
            node.parentNode.removeChild(node);
        }
    }
    function destroy_each(iterations, detaching) {
        for (let i = 0; i < iterations.length; i += 1) {
            if (iterations[i])
                iterations[i].d(detaching);
        }
    }
    function element(name) {
        return document.createElement(name);
    }
    function text(data) {
        return document.createTextNode(data);
    }
    function space() {
        return text(' ');
    }
    function empty() {
        return text('');
    }
    function listen(node, event, handler, options) {
        node.addEventListener(event, handler, options);
        return () => node.removeEventListener(event, handler, options);
    }
    function attr(node, attribute, value) {
        if (value == null)
            node.removeAttribute(attribute);
        else if (node.getAttribute(attribute) !== value)
            node.setAttribute(attribute, value);
    }
    function to_number(value) {
        return value === '' ? null : +value;
    }
    function children(element) {
        return Array.from(element.childNodes);
    }
    function set_input_value(input, value) {
        input.value = value == null ? '' : value;
    }
    function set_style(node, key, value, important) {
        if (value == null) {
            node.style.removeProperty(key);
        }
        else {
            node.style.setProperty(key, value, important ? 'important' : '');
        }
    }
    function select_option(select, value, mounting) {
        for (let i = 0; i < select.options.length; i += 1) {
            const option = select.options[i];
            if (option.__value === value) {
                option.selected = true;
                return;
            }
        }
        if (!mounting || value !== undefined) {
            select.selectedIndex = -1; // no option should be selected
        }
    }
    function select_value(select) {
        const selected_option = select.querySelector(':checked');
        return selected_option && selected_option.__value;
    }
    function toggle_class(element, name, toggle) {
        element.classList[toggle ? 'add' : 'remove'](name);
    }
    function custom_event(type, detail, { bubbles = false, cancelable = false } = {}) {
        const e = document.createEvent('CustomEvent');
        e.initCustomEvent(type, bubbles, cancelable, detail);
        return e;
    }

    let current_component;
    function set_current_component(component) {
        current_component = component;
    }
    function get_current_component() {
        if (!current_component)
            throw new Error('Function called outside component initialization');
        return current_component;
    }
    /**
     * The `onMount` function schedules a callback to run as soon as the component has been mounted to the DOM.
     * It must be called during the component's initialisation (but doesn't need to live *inside* the component;
     * it can be called from an external module).
     *
     * `onMount` does not run inside a [server-side component](/docs#run-time-server-side-component-api).
     *
     * https://svelte.dev/docs#run-time-svelte-onmount
     */
    function onMount(fn) {
        get_current_component().$$.on_mount.push(fn);
    }
    /**
     * Schedules a callback to run immediately before the component is unmounted.
     *
     * Out of `onMount`, `beforeUpdate`, `afterUpdate` and `onDestroy`, this is the
     * only one that runs inside a server-side component.
     *
     * https://svelte.dev/docs#run-time-svelte-ondestroy
     */
    function onDestroy(fn) {
        get_current_component().$$.on_destroy.push(fn);
    }
    /**
     * Creates an event dispatcher that can be used to dispatch [component events](/docs#template-syntax-component-directives-on-eventname).
     * Event dispatchers are functions that can take two arguments: `name` and `detail`.
     *
     * Component events created with `createEventDispatcher` create a
     * [CustomEvent](https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent).
     * These events do not [bubble](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Building_blocks/Events#Event_bubbling_and_capture).
     * The `detail` argument corresponds to the [CustomEvent.detail](https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/detail)
     * property and can contain any type of data.
     *
     * https://svelte.dev/docs#run-time-svelte-createeventdispatcher
     */
    function createEventDispatcher() {
        const component = get_current_component();
        return (type, detail, { cancelable = false } = {}) => {
            const callbacks = component.$$.callbacks[type];
            if (callbacks) {
                // TODO are there situations where events could be dispatched
                // in a server (non-DOM) environment?
                const event = custom_event(type, detail, { cancelable });
                callbacks.slice().forEach(fn => {
                    fn.call(component, event);
                });
                return !event.defaultPrevented;
            }
            return true;
        };
    }

    const dirty_components = [];
    const binding_callbacks = [];
    let render_callbacks = [];
    const flush_callbacks = [];
    const resolved_promise = /* @__PURE__ */ Promise.resolve();
    let update_scheduled = false;
    function schedule_update() {
        if (!update_scheduled) {
            update_scheduled = true;
            resolved_promise.then(flush);
        }
    }
    function tick() {
        schedule_update();
        return resolved_promise;
    }
    function add_render_callback(fn) {
        render_callbacks.push(fn);
    }
    // flush() calls callbacks in this order:
    // 1. All beforeUpdate callbacks, in order: parents before children
    // 2. All bind:this callbacks, in reverse order: children before parents.
    // 3. All afterUpdate callbacks, in order: parents before children. EXCEPT
    //    for afterUpdates called during the initial onMount, which are called in
    //    reverse order: children before parents.
    // Since callbacks might update component values, which could trigger another
    // call to flush(), the following steps guard against this:
    // 1. During beforeUpdate, any updated components will be added to the
    //    dirty_components array and will cause a reentrant call to flush(). Because
    //    the flush index is kept outside the function, the reentrant call will pick
    //    up where the earlier call left off and go through all dirty components. The
    //    current_component value is saved and restored so that the reentrant call will
    //    not interfere with the "parent" flush() call.
    // 2. bind:this callbacks cannot trigger new flush() calls.
    // 3. During afterUpdate, any updated components will NOT have their afterUpdate
    //    callback called a second time; the seen_callbacks set, outside the flush()
    //    function, guarantees this behavior.
    const seen_callbacks = new Set();
    let flushidx = 0; // Do *not* move this inside the flush() function
    function flush() {
        // Do not reenter flush while dirty components are updated, as this can
        // result in an infinite loop. Instead, let the inner flush handle it.
        // Reentrancy is ok afterwards for bindings etc.
        if (flushidx !== 0) {
            return;
        }
        const saved_component = current_component;
        do {
            // first, call beforeUpdate functions
            // and update components
            try {
                while (flushidx < dirty_components.length) {
                    const component = dirty_components[flushidx];
                    flushidx++;
                    set_current_component(component);
                    update(component.$$);
                }
            }
            catch (e) {
                // reset dirty state to not end up in a deadlocked state and then rethrow
                dirty_components.length = 0;
                flushidx = 0;
                throw e;
            }
            set_current_component(null);
            dirty_components.length = 0;
            flushidx = 0;
            while (binding_callbacks.length)
                binding_callbacks.pop()();
            // then, once components are updated, call
            // afterUpdate functions. This may cause
            // subsequent updates...
            for (let i = 0; i < render_callbacks.length; i += 1) {
                const callback = render_callbacks[i];
                if (!seen_callbacks.has(callback)) {
                    // ...so guard against infinite loops
                    seen_callbacks.add(callback);
                    callback();
                }
            }
            render_callbacks.length = 0;
        } while (dirty_components.length);
        while (flush_callbacks.length) {
            flush_callbacks.pop()();
        }
        update_scheduled = false;
        seen_callbacks.clear();
        set_current_component(saved_component);
    }
    function update($$) {
        if ($$.fragment !== null) {
            $$.update();
            run_all($$.before_update);
            const dirty = $$.dirty;
            $$.dirty = [-1];
            $$.fragment && $$.fragment.p($$.ctx, dirty);
            $$.after_update.forEach(add_render_callback);
        }
    }
    /**
     * Useful for example to execute remaining `afterUpdate` callbacks before executing `destroy`.
     */
    function flush_render_callbacks(fns) {
        const filtered = [];
        const targets = [];
        render_callbacks.forEach((c) => fns.indexOf(c) === -1 ? filtered.push(c) : targets.push(c));
        targets.forEach((c) => c());
        render_callbacks = filtered;
    }
    const outroing = new Set();
    let outros;
    function group_outros() {
        outros = {
            r: 0,
            c: [],
            p: outros // parent group
        };
    }
    function check_outros() {
        if (!outros.r) {
            run_all(outros.c);
        }
        outros = outros.p;
    }
    function transition_in(block, local) {
        if (block && block.i) {
            outroing.delete(block);
            block.i(local);
        }
    }
    function transition_out(block, local, detach, callback) {
        if (block && block.o) {
            if (outroing.has(block))
                return;
            outroing.add(block);
            outros.c.push(() => {
                outroing.delete(block);
                if (callback) {
                    if (detach)
                        block.d(1);
                    callback();
                }
            });
            block.o(local);
        }
        else if (callback) {
            callback();
        }
    }

    function destroy_block(block, lookup) {
        block.d(1);
        lookup.delete(block.key);
    }
    function outro_and_destroy_block(block, lookup) {
        transition_out(block, 1, 1, () => {
            lookup.delete(block.key);
        });
    }
    function update_keyed_each(old_blocks, dirty, get_key, dynamic, ctx, list, lookup, node, destroy, create_each_block, next, get_context) {
        let o = old_blocks.length;
        let n = list.length;
        let i = o;
        const old_indexes = {};
        while (i--)
            old_indexes[old_blocks[i].key] = i;
        const new_blocks = [];
        const new_lookup = new Map();
        const deltas = new Map();
        const updates = [];
        i = n;
        while (i--) {
            const child_ctx = get_context(ctx, list, i);
            const key = get_key(child_ctx);
            let block = lookup.get(key);
            if (!block) {
                block = create_each_block(key, child_ctx);
                block.c();
            }
            else if (dynamic) {
                // defer updates until all the DOM shuffling is done
                updates.push(() => block.p(child_ctx, dirty));
            }
            new_lookup.set(key, new_blocks[i] = block);
            if (key in old_indexes)
                deltas.set(key, Math.abs(i - old_indexes[key]));
        }
        const will_move = new Set();
        const did_move = new Set();
        function insert(block) {
            transition_in(block, 1);
            block.m(node, next);
            lookup.set(block.key, block);
            next = block.first;
            n--;
        }
        while (o && n) {
            const new_block = new_blocks[n - 1];
            const old_block = old_blocks[o - 1];
            const new_key = new_block.key;
            const old_key = old_block.key;
            if (new_block === old_block) {
                // do nothing
                next = new_block.first;
                o--;
                n--;
            }
            else if (!new_lookup.has(old_key)) {
                // remove old block
                destroy(old_block, lookup);
                o--;
            }
            else if (!lookup.has(new_key) || will_move.has(new_key)) {
                insert(new_block);
            }
            else if (did_move.has(old_key)) {
                o--;
            }
            else if (deltas.get(new_key) > deltas.get(old_key)) {
                did_move.add(new_key);
                insert(new_block);
            }
            else {
                will_move.add(old_key);
                o--;
            }
        }
        while (o--) {
            const old_block = old_blocks[o];
            if (!new_lookup.has(old_block.key))
                destroy(old_block, lookup);
        }
        while (n)
            insert(new_blocks[n - 1]);
        run_all(updates);
        return new_blocks;
    }
    function validate_each_keys(ctx, list, get_context, get_key) {
        const keys = new Set();
        for (let i = 0; i < list.length; i++) {
            const key = get_key(get_context(ctx, list, i));
            if (keys.has(key)) {
                throw new Error('Cannot have duplicate keys in a keyed each');
            }
            keys.add(key);
        }
    }
    function create_component(block) {
        block && block.c();
    }
    function mount_component(component, target, anchor, customElement) {
        const { fragment, after_update } = component.$$;
        fragment && fragment.m(target, anchor);
        if (!customElement) {
            // onMount happens before the initial afterUpdate
            add_render_callback(() => {
                const new_on_destroy = component.$$.on_mount.map(run).filter(is_function);
                // if the component was destroyed immediately
                // it will update the `$$.on_destroy` reference to `null`.
                // the destructured on_destroy may still reference to the old array
                if (component.$$.on_destroy) {
                    component.$$.on_destroy.push(...new_on_destroy);
                }
                else {
                    // Edge case - component was destroyed immediately,
                    // most likely as a result of a binding initialising
                    run_all(new_on_destroy);
                }
                component.$$.on_mount = [];
            });
        }
        after_update.forEach(add_render_callback);
    }
    function destroy_component(component, detaching) {
        const $$ = component.$$;
        if ($$.fragment !== null) {
            flush_render_callbacks($$.after_update);
            run_all($$.on_destroy);
            $$.fragment && $$.fragment.d(detaching);
            // TODO null out other refs, including component.$$ (but need to
            // preserve final state?)
            $$.on_destroy = $$.fragment = null;
            $$.ctx = [];
        }
    }
    function make_dirty(component, i) {
        if (component.$$.dirty[0] === -1) {
            dirty_components.push(component);
            schedule_update();
            component.$$.dirty.fill(0);
        }
        component.$$.dirty[(i / 31) | 0] |= (1 << (i % 31));
    }
    function init(component, options, instance, create_fragment, not_equal, props, append_styles, dirty = [-1]) {
        const parent_component = current_component;
        set_current_component(component);
        const $$ = component.$$ = {
            fragment: null,
            ctx: [],
            // state
            props,
            update: noop,
            not_equal,
            bound: blank_object(),
            // lifecycle
            on_mount: [],
            on_destroy: [],
            on_disconnect: [],
            before_update: [],
            after_update: [],
            context: new Map(options.context || (parent_component ? parent_component.$$.context : [])),
            // everything else
            callbacks: blank_object(),
            dirty,
            skip_bound: false,
            root: options.target || parent_component.$$.root
        };
        append_styles && append_styles($$.root);
        let ready = false;
        $$.ctx = instance
            ? instance(component, options.props || {}, (i, ret, ...rest) => {
                const value = rest.length ? rest[0] : ret;
                if ($$.ctx && not_equal($$.ctx[i], $$.ctx[i] = value)) {
                    if (!$$.skip_bound && $$.bound[i])
                        $$.bound[i](value);
                    if (ready)
                        make_dirty(component, i);
                }
                return ret;
            })
            : [];
        $$.update();
        ready = true;
        run_all($$.before_update);
        // `false` as a special case of no DOM component
        $$.fragment = create_fragment ? create_fragment($$.ctx) : false;
        if (options.target) {
            if (options.hydrate) {
                const nodes = children(options.target);
                // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
                $$.fragment && $$.fragment.l(nodes);
                nodes.forEach(detach);
            }
            else {
                // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
                $$.fragment && $$.fragment.c();
            }
            if (options.intro)
                transition_in(component.$$.fragment);
            mount_component(component, options.target, options.anchor, options.customElement);
            flush();
        }
        set_current_component(parent_component);
    }
    /**
     * Base class for Svelte components. Used when dev=false.
     */
    class SvelteComponent {
        $destroy() {
            destroy_component(this, 1);
            this.$destroy = noop;
        }
        $on(type, callback) {
            if (!is_function(callback)) {
                return noop;
            }
            const callbacks = (this.$$.callbacks[type] || (this.$$.callbacks[type] = []));
            callbacks.push(callback);
            return () => {
                const index = callbacks.indexOf(callback);
                if (index !== -1)
                    callbacks.splice(index, 1);
            };
        }
        $set($$props) {
            if (this.$$set && !is_empty($$props)) {
                this.$$.skip_bound = true;
                this.$$set($$props);
                this.$$.skip_bound = false;
            }
        }
    }

    function dispatch_dev(type, detail) {
        document.dispatchEvent(custom_event(type, Object.assign({ version: '3.59.2' }, detail), { bubbles: true }));
    }
    function append_dev(target, node) {
        dispatch_dev('SvelteDOMInsert', { target, node });
        append(target, node);
    }
    function insert_dev(target, node, anchor) {
        dispatch_dev('SvelteDOMInsert', { target, node, anchor });
        insert(target, node, anchor);
    }
    function detach_dev(node) {
        dispatch_dev('SvelteDOMRemove', { node });
        detach(node);
    }
    function listen_dev(node, event, handler, options, has_prevent_default, has_stop_propagation, has_stop_immediate_propagation) {
        const modifiers = options === true ? ['capture'] : options ? Array.from(Object.keys(options)) : [];
        if (has_prevent_default)
            modifiers.push('preventDefault');
        if (has_stop_propagation)
            modifiers.push('stopPropagation');
        if (has_stop_immediate_propagation)
            modifiers.push('stopImmediatePropagation');
        dispatch_dev('SvelteDOMAddEventListener', { node, event, handler, modifiers });
        const dispose = listen(node, event, handler, options);
        return () => {
            dispatch_dev('SvelteDOMRemoveEventListener', { node, event, handler, modifiers });
            dispose();
        };
    }
    function attr_dev(node, attribute, value) {
        attr(node, attribute, value);
        if (value == null)
            dispatch_dev('SvelteDOMRemoveAttribute', { node, attribute });
        else
            dispatch_dev('SvelteDOMSetAttribute', { node, attribute, value });
    }
    function prop_dev(node, property, value) {
        node[property] = value;
        dispatch_dev('SvelteDOMSetProperty', { node, property, value });
    }
    function set_data_dev(text, data) {
        data = '' + data;
        if (text.data === data)
            return;
        dispatch_dev('SvelteDOMSetData', { node: text, data });
        text.data = data;
    }
    function validate_each_argument(arg) {
        if (typeof arg !== 'string' && !(arg && typeof arg === 'object' && 'length' in arg)) {
            let msg = '{#each} only iterates over array-like objects.';
            if (typeof Symbol === 'function' && arg && Symbol.iterator in arg) {
                msg += ' You can use a spread to convert this iterable into an array.';
            }
            throw new Error(msg);
        }
    }
    function validate_slots(name, slot, keys) {
        for (const slot_key of Object.keys(slot)) {
            if (!~keys.indexOf(slot_key)) {
                console.warn(`<${name}> received an unexpected slot "${slot_key}".`);
            }
        }
    }
    /**
     * Base class for Svelte components with some minor dev-enhancements. Used when dev=true.
     */
    class SvelteComponentDev extends SvelteComponent {
        constructor(options) {
            if (!options || (!options.target && !options.$$inline)) {
                throw new Error("'target' is a required option");
            }
            super();
        }
        $destroy() {
            super.$destroy();
            this.$destroy = () => {
                console.warn('Component was already destroyed'); // eslint-disable-line no-console
            };
        }
        $capture_state() { }
        $inject_state() { }
    }

    /* src\VideoGradioComponentBrainstorming.svelte generated by Svelte v3.59.2 */

    const { console: console_1$e } = globals;
    const file$t = "src\\VideoGradioComponentBrainstorming.svelte";

    function get_each_context$j(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[15] = list[i];
    	return child_ctx;
    }

    // (85:4) {#each kitchenOptions as option}
    function create_each_block$j(ctx) {
    	let option;
    	let t_value = /*option*/ ctx[15] + "";
    	let t;

    	const block = {
    		c: function create() {
    			option = element("option");
    			t = text(t_value);
    			option.__value = /*option*/ ctx[15];
    			option.value = option.__value;
    			add_location(option, file$t, 85, 6, 2561);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, option, anchor);
    			append_dev(option, t);
    		},
    		p: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(option);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$j.name,
    		type: "each",
    		source: "(85:4) {#each kitchenOptions as option}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$t(ctx) {
    	let h1;
    	let t1;
    	let div1;
    	let video;
    	let track;
    	let track_src_value;
    	let t2;
    	let div0;
    	let t3;
    	let t4;
    	let t5;
    	let canvas_1;
    	let t6;
    	let input;
    	let t7;
    	let div2;
    	let button;
    	let t9;
    	let select;
    	let mounted;
    	let dispose;
    	let each_value = /*kitchenOptions*/ ctx[4];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$j(get_each_context$j(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			h1 = element("h1");
    			h1.textContent = "AI Vision Assistant - Auto prompt HF agent + Cohere + Object detection - Text write on screen test";
    			t1 = space();
    			div1 = element("div");
    			video = element("video");
    			track = element("track");
    			t2 = space();
    			div0 = element("div");
    			t3 = text("Text Overlay Test and ");
    			t4 = text(/*TestVerb*/ ctx[3]);
    			t5 = space();
    			canvas_1 = element("canvas");
    			t6 = space();
    			input = element("input");
    			t7 = space();
    			div2 = element("div");
    			button = element("button");
    			button.textContent = "Verb Test";
    			t9 = space();
    			select = element("select");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h1, file$t, 66, 0, 1800);
    			attr_dev(track, "kind", "captions");
    			if (!src_url_equal(track.src, track_src_value = "path/to/your/captions/file.vtt")) attr_dev(track, "src", track_src_value);
    			attr_dev(track, "srclang", "en");
    			attr_dev(track, "label", "English");
    			add_location(track, file$t, 72, 4, 2006);
    			attr_dev(video, "id", "videoCanvas");
    			video.autoplay = true;
    			attr_dev(video, "class", "svelte-ufd3fo");
    			add_location(video, file$t, 70, 2, 1965);
    			attr_dev(div0, "id", "overlayText");
    			attr_dev(div0, "class", "svelte-ufd3fo");
    			add_location(div0, file$t, 74, 2, 2111);
    			attr_dev(div1, "id", "videoContainer");
    			attr_dev(div1, "class", "svelte-ufd3fo");
    			add_location(div1, file$t, 68, 0, 1911);
    			attr_dev(canvas_1, "id", "myCanvas");
    			set_style(canvas_1, "border", "2px solid black");
    			attr_dev(canvas_1, "width", "500");
    			attr_dev(canvas_1, "height", "500");
    			add_location(canvas_1, file$t, 77, 0, 2186);
    			attr_dev(input, "type", "text");
    			add_location(input, file$t, 78, 0, 2294);
    			add_location(button, file$t, 82, 2, 2429);
    			if (/*selectedOption*/ ctx[0] === void 0) add_render_callback(() => /*select_change_handler*/ ctx[9].call(select));
    			add_location(select, file$t, 83, 2, 2479);
    			attr_dev(div2, "id", "frameForButtons");
    			add_location(div2, file$t, 81, 0, 2399);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h1, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, div1, anchor);
    			append_dev(div1, video);
    			append_dev(video, track);
    			append_dev(div1, t2);
    			append_dev(div1, div0);
    			append_dev(div0, t3);
    			append_dev(div0, t4);
    			insert_dev(target, t5, anchor);
    			insert_dev(target, canvas_1, anchor);
    			/*canvas_1_binding*/ ctx[7](canvas_1);
    			insert_dev(target, t6, anchor);
    			insert_dev(target, input, anchor);
    			set_input_value(input, /*textToDisplay*/ ctx[2]);
    			insert_dev(target, t7, anchor);
    			insert_dev(target, div2, anchor);
    			append_dev(div2, button);
    			append_dev(div2, t9);
    			append_dev(div2, select);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(select, null);
    				}
    			}

    			select_option(select, /*selectedOption*/ ctx[0], true);

    			if (!mounted) {
    				dispose = [
    					listen_dev(input, "input", /*input_input_handler*/ ctx[8]),
    					listen_dev(input, "input", /*updateText*/ ctx[6], false, false, false, false),
    					listen_dev(button, "click", /*testText*/ ctx[5], false, false, false, false),
    					listen_dev(select, "change", /*select_change_handler*/ ctx[9])
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*TestVerb*/ 8) set_data_dev(t4, /*TestVerb*/ ctx[3]);

    			if (dirty & /*textToDisplay*/ 4 && input.value !== /*textToDisplay*/ ctx[2]) {
    				set_input_value(input, /*textToDisplay*/ ctx[2]);
    			}

    			if (dirty & /*kitchenOptions*/ 16) {
    				each_value = /*kitchenOptions*/ ctx[4];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$j(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$j(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(select, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}

    			if (dirty & /*selectedOption, kitchenOptions*/ 17) {
    				select_option(select, /*selectedOption*/ ctx[0]);
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h1);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(div1);
    			if (detaching) detach_dev(t5);
    			if (detaching) detach_dev(canvas_1);
    			/*canvas_1_binding*/ ctx[7](null);
    			if (detaching) detach_dev(t6);
    			if (detaching) detach_dev(input);
    			if (detaching) detach_dev(t7);
    			if (detaching) detach_dev(div2);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$t.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function ocrTest() {
    	
    } // Logic for 'Test OCR' button

    function instance$t($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('VideoGradioComponentBrainstorming', slots, []);
    	let selectedOption = 'Stove - lu'; // default value
    	let kitchenOptions = ['Stove - lu', 'Refrigerator - bingxiang', 'Spoon - shao']; /* ... other options ... */
    	let canvas;
    	let ctx;
    	let textToDisplay = 'Initial Text';
    	let counter = 0;
    	let hud_text;
    	let TestVerb = "|Test verb|";

    	// Functions for button commands
    	function testText() {
    		// Logic for 'verb test' button
    		const randomIndex = Math.floor(Math.random() * kitchenOptions.length);

    		$$invalidate(3, TestVerb = kitchenOptions[randomIndex]);
    	}

    	// Image source
    	let imageSrc = 'path_to_your_image/Blooms-Taxonomy-650x366.jpg';

    	// Video stream setup
    	onMount(() => {
    		// Initialize video stream here
    		ctx = canvas.getContext('2d');

    		setInterval(
    			() => {
    				drawText(textToDisplay);
    			},
    			1000
    		); // Update every second
    	});

    	function drawText(hud_info) {
    		if (ctx) {
    			hud_text = "HUD Info Update: " + counter++ + " " + hud_info;
    			ctx.clearRect(0, 0, canvas.width, canvas.height); // Clear the canvas
    			ctx.font = '30px Arial';
    			ctx.fillStyle = 'black';
    			ctx.fillText(hud_text, 50, 50);
    		}
    	}

    	function updateText(event) {
    		$$invalidate(2, textToDisplay = event.target.value);
    		drawText();
    	}

    	// Camera as Video Stream
    	navigator.mediaDevices.getUserMedia({ video: true }).then(stream => {
    		const video = document.getElementById('videoCanvas');
    		video.srcObject = stream;
    	}).catch(err => {
    		console.error("Error accessing the camera: ", err);
    	});

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$e.warn(`<VideoGradioComponentBrainstorming> was created with unknown prop '${key}'`);
    	});

    	function canvas_1_binding($$value) {
    		binding_callbacks[$$value ? 'unshift' : 'push'](() => {
    			canvas = $$value;
    			$$invalidate(1, canvas);
    		});
    	}

    	function input_input_handler() {
    		textToDisplay = this.value;
    		$$invalidate(2, textToDisplay);
    	}

    	function select_change_handler() {
    		selectedOption = select_value(this);
    		$$invalidate(0, selectedOption);
    		$$invalidate(4, kitchenOptions);
    	}

    	$$self.$capture_state = () => ({
    		onMount,
    		selectedOption,
    		kitchenOptions,
    		canvas,
    		ctx,
    		textToDisplay,
    		counter,
    		hud_text,
    		TestVerb,
    		testText,
    		ocrTest,
    		imageSrc,
    		drawText,
    		updateText
    	});

    	$$self.$inject_state = $$props => {
    		if ('selectedOption' in $$props) $$invalidate(0, selectedOption = $$props.selectedOption);
    		if ('kitchenOptions' in $$props) $$invalidate(4, kitchenOptions = $$props.kitchenOptions);
    		if ('canvas' in $$props) $$invalidate(1, canvas = $$props.canvas);
    		if ('ctx' in $$props) ctx = $$props.ctx;
    		if ('textToDisplay' in $$props) $$invalidate(2, textToDisplay = $$props.textToDisplay);
    		if ('counter' in $$props) counter = $$props.counter;
    		if ('hud_text' in $$props) hud_text = $$props.hud_text;
    		if ('TestVerb' in $$props) $$invalidate(3, TestVerb = $$props.TestVerb);
    		if ('imageSrc' in $$props) imageSrc = $$props.imageSrc;
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		selectedOption,
    		canvas,
    		textToDisplay,
    		TestVerb,
    		kitchenOptions,
    		testText,
    		updateText,
    		canvas_1_binding,
    		input_input_handler,
    		select_change_handler
    	];
    }

    class VideoGradioComponentBrainstorming extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$t, create_fragment$t, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "VideoGradioComponentBrainstorming",
    			options,
    			id: create_fragment$t.name
    		});
    	}
    }

    const subscriber_queue = [];
    /**
     * Create a `Writable` store that allows both updating and reading by subscription.
     * @param {*=}value initial value
     * @param {StartStopNotifier=} start
     */
    function writable(value, start = noop) {
        let stop;
        const subscribers = new Set();
        function set(new_value) {
            if (safe_not_equal(value, new_value)) {
                value = new_value;
                if (stop) { // store is ready
                    const run_queue = !subscriber_queue.length;
                    for (const subscriber of subscribers) {
                        subscriber[1]();
                        subscriber_queue.push(subscriber, value);
                    }
                    if (run_queue) {
                        for (let i = 0; i < subscriber_queue.length; i += 2) {
                            subscriber_queue[i][0](subscriber_queue[i + 1]);
                        }
                        subscriber_queue.length = 0;
                    }
                }
            }
        }
        function update(fn) {
            set(fn(value));
        }
        function subscribe(run, invalidate = noop) {
            const subscriber = [run, invalidate];
            subscribers.add(subscriber);
            if (subscribers.size === 1) {
                stop = start(set) || noop;
            }
            run(value);
            return () => {
                subscribers.delete(subscriber);
                if (subscribers.size === 0 && stop) {
                    stop();
                    stop = null;
                }
            };
        }
        return { set, update, subscribe };
    }

    /* src\MovingDotPortfromReact.svelte generated by Svelte v3.59.2 */
    const file$s = "src\\MovingDotPortfromReact.svelte";

    function create_fragment$s(ctx) {
    	let button;

    	const block = {
    		c: function create() {
    			button = element("button");
    			attr_dev(button, "class", "MovingDot svelte-1mg0qyd");
    			set_style(button, "left", /*position*/ ctx[0].x + "px");
    			set_style(button, "top", /*position*/ ctx[0].y + "px");
    			attr_dev(button, "tabindex", "0");
    			add_location(button, file$s, 48, 0, 1573);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			/*button_binding*/ ctx[4](button);
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*position*/ 1) {
    				set_style(button, "left", /*position*/ ctx[0].x + "px");
    			}

    			if (dirty & /*position*/ 1) {
    				set_style(button, "top", /*position*/ ctx[0].y + "px");
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			/*button_binding*/ ctx[4](null);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$s.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    const step = 10;

    function instance$s($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotPortfromReact', slots, []);
    	let { position = { x: 0, y: 0 } } = $$props;
    	let { boundaries = { minX: 0, maxX: 100, minY: 0, maxY: 100 } } = $$props;
    	const dispatch = createEventDispatcher();
    	let dotElement; // Reference to the dot element

    	function moveDot(newX, newY) {
    		// Update position with a new object for Svelte reactivity
    		let boundedX = Math.max(boundaries.minX, Math.min(newX, boundaries.maxX));

    		let boundedY = Math.max(boundaries.minY, Math.min(newY, boundaries.maxY));

    		// Update position
    		$$invalidate(0, position = { x: boundedX, y: boundedY });

    		// Dispatch the move event with the new position
    		dispatch('move', position);
    	}

    	const handleKeyPress = e => {
    		e.preventDefault();
    		let newX = position.x;
    		let newY = position.y;

    		switch (e.key) {
    			case 'ArrowLeft':
    				newX -= step;
    				break;
    			case 'ArrowRight':
    				newX += step;
    				break;
    			case 'ArrowUp':
    				newY -= step;
    				break;
    			case 'ArrowDown':
    				newY += step;
    				break;
    		}

    		moveDot(newX, newY);
    	};

    	function focusDot() {
    		//On click for the space its imported into
    		dotElement.focus();
    	}

    	onMount(() => {
    		dotElement.addEventListener('keydown', handleKeyPress);
    	});

    	onDestroy(() => {
    		dotElement.removeEventListener('keydown', handleKeyPress);
    	});

    	const writable_props = ['position', 'boundaries'];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<MovingDotPortfromReact> was created with unknown prop '${key}'`);
    	});

    	function button_binding($$value) {
    		binding_callbacks[$$value ? 'unshift' : 'push'](() => {
    			dotElement = $$value;
    			$$invalidate(1, dotElement);
    		});
    	}

    	$$self.$$set = $$props => {
    		if ('position' in $$props) $$invalidate(0, position = $$props.position);
    		if ('boundaries' in $$props) $$invalidate(2, boundaries = $$props.boundaries);
    	};

    	$$self.$capture_state = () => ({
    		onMount,
    		onDestroy,
    		createEventDispatcher,
    		position,
    		boundaries,
    		step,
    		dispatch,
    		dotElement,
    		moveDot,
    		handleKeyPress,
    		focusDot
    	});

    	$$self.$inject_state = $$props => {
    		if ('position' in $$props) $$invalidate(0, position = $$props.position);
    		if ('boundaries' in $$props) $$invalidate(2, boundaries = $$props.boundaries);
    		if ('dotElement' in $$props) $$invalidate(1, dotElement = $$props.dotElement);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [position, dotElement, boundaries, focusDot, button_binding];
    }

    class MovingDotPortfromReact extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$s, create_fragment$s, safe_not_equal, { position: 0, boundaries: 2, focusDot: 3 });

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotPortfromReact",
    			options,
    			id: create_fragment$s.name
    		});
    	}

    	get position() {
    		throw new Error("<MovingDotPortfromReact>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set position(value) {
    		throw new Error("<MovingDotPortfromReact>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get boundaries() {
    		throw new Error("<MovingDotPortfromReact>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set boundaries(value) {
    		throw new Error("<MovingDotPortfromReact>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get focusDot() {
    		return this.$$.ctx[3];
    	}

    	set focusDot(value) {
    		throw new Error("<MovingDotPortfromReact>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    /* src\MovingDotTargetPortfromReact.svelte generated by Svelte v3.59.2 */

    const file$r = "src\\MovingDotTargetPortfromReact.svelte";

    function create_fragment$r(ctx) {
    	let div;

    	const block = {
    		c: function create() {
    			div = element("div");
    			attr_dev(div, "class", "target svelte-4yc66h");
    			set_style(div, "left", /*position*/ ctx[0].x + "px");
    			set_style(div, "top", /*position*/ ctx[0].y + "px");
    			add_location(div, file$r, 4, 0, 49);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*position*/ 1) {
    				set_style(div, "left", /*position*/ ctx[0].x + "px");
    			}

    			if (dirty & /*position*/ 1) {
    				set_style(div, "top", /*position*/ ctx[0].y + "px");
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$r.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$r($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotTargetPortfromReact', slots, []);
    	let { position } = $$props;

    	$$self.$$.on_mount.push(function () {
    		if (position === undefined && !('position' in $$props || $$self.$$.bound[$$self.$$.props['position']])) {
    			console.warn("<MovingDotTargetPortfromReact> was created without expected prop 'position'");
    		}
    	});

    	const writable_props = ['position'];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<MovingDotTargetPortfromReact> was created with unknown prop '${key}'`);
    	});

    	$$self.$$set = $$props => {
    		if ('position' in $$props) $$invalidate(0, position = $$props.position);
    	};

    	$$self.$capture_state = () => ({ position });

    	$$self.$inject_state = $$props => {
    		if ('position' in $$props) $$invalidate(0, position = $$props.position);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [position];
    }

    class MovingDotTargetPortfromReact extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$r, create_fragment$r, safe_not_equal, { position: 0 });

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotTargetPortfromReact",
    			options,
    			id: create_fragment$r.name
    		});
    	}

    	get position() {
    		throw new Error("<MovingDotTargetPortfromReact>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set position(value) {
    		throw new Error("<MovingDotTargetPortfromReact>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    /* src\MovingDotSpaceSimpleModal.svelte generated by Svelte v3.59.2 */

    const { console: console_1$d } = globals;
    const file$q = "src\\MovingDotSpaceSimpleModal.svelte";

    function get_each_context$i(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[10] = list[i];
    	return child_ctx;
    }

    // (34:0) {#if isOpen}
    function create_if_block$f(ctx) {
    	let div3;
    	let div2;
    	let div0;
    	let h2;
    	let t0;
    	let t1;
    	let button;
    	let t3;
    	let div1;
    	let t4;
    	let t5;
    	let ul;
    	let mounted;
    	let dispose;
    	let each_value = /*items*/ ctx[3];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$i(get_each_context$i(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			div3 = element("div");
    			div2 = element("div");
    			div0 = element("div");
    			h2 = element("h2");
    			t0 = text(/*title*/ ctx[1]);
    			t1 = space();
    			button = element("button");
    			button.textContent = "×";
    			t3 = space();
    			div1 = element("div");
    			t4 = text(/*content*/ ctx[2]);
    			t5 = space();
    			ul = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h2, file$q, 37, 8, 1159);
    			add_location(button, file$q, 38, 8, 1185);
    			attr_dev(div0, "class", "modal-header svelte-m51ous");
    			add_location(div0, file$q, 36, 6, 1123);
    			attr_dev(ul, "class", "modal-items");
    			add_location(ul, file$q, 42, 8, 1309);
    			attr_dev(div1, "class", "modal-content svelte-m51ous");
    			add_location(div1, file$q, 40, 6, 1253);
    			attr_dev(div2, "class", "modal svelte-m51ous");
    			add_location(div2, file$q, 35, 4, 1096);
    			attr_dev(div3, "class", "modal-overlay svelte-m51ous");
    			add_location(div3, file$q, 34, 2, 1063);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div3, anchor);
    			append_dev(div3, div2);
    			append_dev(div2, div0);
    			append_dev(div0, h2);
    			append_dev(h2, t0);
    			append_dev(div0, t1);
    			append_dev(div0, button);
    			append_dev(div2, t3);
    			append_dev(div2, div1);
    			append_dev(div1, t4);
    			append_dev(div1, t5);
    			append_dev(div1, ul);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul, null);
    				}
    			}

    			if (!mounted) {
    				dispose = listen_dev(button, "click", /*closeModal*/ ctx[4], false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*title*/ 2) set_data_dev(t0, /*title*/ ctx[1]);
    			if (dirty & /*content*/ 4) set_data_dev(t4, /*content*/ ctx[2]);

    			if (dirty & /*handleItemClick, items*/ 40) {
    				each_value = /*items*/ ctx[3];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$i(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$i(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div3);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$f.name,
    		type: "if",
    		source: "(34:0) {#if isOpen}",
    		ctx
    	});

    	return block;
    }

    // (44:10) {#each items as item}
    function create_each_block$i(ctx) {
    	let button;
    	let t_value = /*item*/ ctx[10].label + "";
    	let t;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[9](/*item*/ ctx[10]);
    	}

    	const block = {
    		c: function create() {
    			button = element("button");
    			t = text(t_value);
    			add_location(button, file$q, 44, 12, 1380);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty & /*items*/ 8 && t_value !== (t_value = /*item*/ ctx[10].label + "")) set_data_dev(t, t_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$i.name,
    		type: "each",
    		source: "(44:10) {#each items as item}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$q(ctx) {
    	let if_block_anchor;
    	let if_block = /*isOpen*/ ctx[0] && create_if_block$f(ctx);

    	const block = {
    		c: function create() {
    			if (if_block) if_block.c();
    			if_block_anchor = empty();
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			if (if_block) if_block.m(target, anchor);
    			insert_dev(target, if_block_anchor, anchor);
    		},
    		p: function update(ctx, [dirty]) {
    			if (/*isOpen*/ ctx[0]) {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block$f(ctx);
    					if_block.c();
    					if_block.m(if_block_anchor.parentNode, if_block_anchor);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (if_block) if_block.d(detaching);
    			if (detaching) detach_dev(if_block_anchor);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$q.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$q($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotSpaceSimpleModal', slots, []);
    	let { isOpen = false } = $$props;
    	let { title = '' } = $$props;
    	let { content = '' } = $$props;
    	let { items = [] } = $$props;
    	let { onClose } = $$props;
    	let { currentTheme = '' } = $$props;
    	let { themeActions } = $$props;

    	//import { themeActions } from './gameActions.js';
    	function closeModal() {
    		if (onClose) {
    			onClose();
    		}
    	}

    	function handleItemClick(item) {
    		// You can define what happens when an item is clicked, e.g., close modal, trigger an event, etc.
    		console.log("Item clicked:", item);

    		closeModal();

    		// if (themeActions[currentTheme] && themeActions[currentTheme][item.action]) {
    		//     themeActions[currentTheme][item.action]();
    		if (themeActions && themeActions[item.action]) {
    			themeActions[item.action]();
    		} else {
    			console.error(`Action "${item.action}" not found for theme "${currentTheme}".`);
    		}
    	}

    	$$self.$$.on_mount.push(function () {
    		if (onClose === undefined && !('onClose' in $$props || $$self.$$.bound[$$self.$$.props['onClose']])) {
    			console_1$d.warn("<MovingDotSpaceSimpleModal> was created without expected prop 'onClose'");
    		}

    		if (themeActions === undefined && !('themeActions' in $$props || $$self.$$.bound[$$self.$$.props['themeActions']])) {
    			console_1$d.warn("<MovingDotSpaceSimpleModal> was created without expected prop 'themeActions'");
    		}
    	});

    	const writable_props = [
    		'isOpen',
    		'title',
    		'content',
    		'items',
    		'onClose',
    		'currentTheme',
    		'themeActions'
    	];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$d.warn(`<MovingDotSpaceSimpleModal> was created with unknown prop '${key}'`);
    	});

    	const click_handler = item => handleItemClick(item);

    	$$self.$$set = $$props => {
    		if ('isOpen' in $$props) $$invalidate(0, isOpen = $$props.isOpen);
    		if ('title' in $$props) $$invalidate(1, title = $$props.title);
    		if ('content' in $$props) $$invalidate(2, content = $$props.content);
    		if ('items' in $$props) $$invalidate(3, items = $$props.items);
    		if ('onClose' in $$props) $$invalidate(6, onClose = $$props.onClose);
    		if ('currentTheme' in $$props) $$invalidate(7, currentTheme = $$props.currentTheme);
    		if ('themeActions' in $$props) $$invalidate(8, themeActions = $$props.themeActions);
    	};

    	$$self.$capture_state = () => ({
    		isOpen,
    		title,
    		content,
    		items,
    		onClose,
    		currentTheme,
    		themeActions,
    		closeModal,
    		handleItemClick
    	});

    	$$self.$inject_state = $$props => {
    		if ('isOpen' in $$props) $$invalidate(0, isOpen = $$props.isOpen);
    		if ('title' in $$props) $$invalidate(1, title = $$props.title);
    		if ('content' in $$props) $$invalidate(2, content = $$props.content);
    		if ('items' in $$props) $$invalidate(3, items = $$props.items);
    		if ('onClose' in $$props) $$invalidate(6, onClose = $$props.onClose);
    		if ('currentTheme' in $$props) $$invalidate(7, currentTheme = $$props.currentTheme);
    		if ('themeActions' in $$props) $$invalidate(8, themeActions = $$props.themeActions);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		isOpen,
    		title,
    		content,
    		items,
    		closeModal,
    		handleItemClick,
    		onClose,
    		currentTheme,
    		themeActions,
    		click_handler
    	];
    }

    class MovingDotSpaceSimpleModal extends SvelteComponentDev {
    	constructor(options) {
    		super(options);

    		init(this, options, instance$q, create_fragment$q, safe_not_equal, {
    			isOpen: 0,
    			title: 1,
    			content: 2,
    			items: 3,
    			onClose: 6,
    			currentTheme: 7,
    			themeActions: 8
    		});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotSpaceSimpleModal",
    			options,
    			id: create_fragment$q.name
    		});
    	}

    	get isOpen() {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set isOpen(value) {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get title() {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set title(value) {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get content() {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set content(value) {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get items() {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set items(value) {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get onClose() {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set onClose(value) {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get currentTheme() {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set currentTheme(value) {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get themeActions() {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set themeActions(value) {
    		throw new Error("<MovingDotSpaceSimpleModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    const ytsubuse = writable(false);
    const ytsubuseplayer = writable(false);
    const ytsubcurrentID = writable('IVJkOHTBPn0');
    const ytsubcurrenttext = writable('Currently none');

    const health = writable(100);
    const mana = writable(50);
    const strength = writable(10);
    const agility = writable(10);
    const intelligence = writable(10);
    const charisma = writable(10);
    const luck = writable(10);
    const money = writable(1000);
    const fightplayerHuman = createfightPlayer();
    const fightplayerComputer = createfightPlayer();
    const fightcurrentTurn = writable('human'); // 'human' or 'computer'
    const themeactions = writable({});
    const autogenconfigtest = writable({
        background: '/AutoGameBackgrounds/theme_background.png',
        inventory: [
            { type: "weapon", name: "Random waepon", description: "A powerful weapon." },
            // ... more space items
        ],
        skills: [
            { branch: "Skill Group 1", name: "Skill One", learned: false },
            // ... more space skills
        ],
        persistentTargets: [
            { name: "Background Target 1", x: 500, y: 500, collisionType: "alert", collisiontext: "First Test"},
        ],
        actions: [],
    });

    function createfightPlayer() {
        return writable({
            fighthealth: 100,
            fightstamina: 100,
            fightisBlocking: false,
            fightcooldowns: {
                attack: 0,
                specialAttack: 0,
            },
        });
    }

    const inventory = writable([
        // Sample inventory items
        { type: "weapon", name: "Sword", description: "A sharp blade." },
        { type: "armor", name: "Shield", description: "Protects against attacks." },
        { type: "consumable", name: "Health Potion", description: "Restores health." },
        // Add more items as needed
    ]);

    const skills = writable([
        // Sample skills
        { branch: "Combat", name: "Basic Attack", learned: false },
        { branch: "Magic", name: "Fireball", learned: false },
        { branch: "Stealth", name: "Sneak", learned: false },
        // Add more skills as needed
    ]);

    const objectives = writable([
        // Sample objectives
        { id: "Seperate", name: "Visit Mountain Peak", complete: false },
        { id: "Mission 1", name: "Intercept The Courier (Search the Locations)", complete: false },
        { id: "Mission 1", name: "Deliver the package to Market Stall", complete: false },
        // Add more objectives as needed
    ]);

    const targets = writable([
        { name: "Target 1", x: 50, y: 50, collisionType: "alert", collisiontext: "First Test"},
        { name: "Target 2", x: 100, y: 100, collisionType: "", collisiontext: ""},
        { name: "Entrance", x: 995, y: 660, collisionType: "modal", modalConfig: {
            title: "Entrance",
            content: "You've reached the Entrance. What's your next step?",
            actions: [
                {
                    label: "Ask for guidance on next move",
                    action: "askforDirections"
                },
                {
                    label: "Buy an Axe",
                    action: "buyAxeAlert"
                },
                // ... more actions if necessary
            ]},
        },
        { name: "Market Stall", x: 200, y: 300, collisionType: "", collisiontext: "" },   // A market stall in the bustling market area.
        { name: "Inn Entrance", x: 400, y: 450, collisionType: "", collisiontext: "" },   // The entrance to the inn for rest or information.
        { name: "Town Hall", x: 600, y: 350, collisionType: "", collisiontext: "" },      // The entrance to the town hall for quests.
        { name: "Fountain", x: 500, y: 500, collisionType: "", collisiontext: "" },       // A fountain in the town square as a meeting point.
        { name: "Bridge", x: 1100, y: 700, collisionType: "", collisiontext: "" },        // A bridge in the mystical forest area.
        { name: "Waterfall", x: 1300, y: 800, collisionType: "", collisiontext: "" },     // A waterfall that could hide secrets or treasures.
        { name: "Mountain Peak", x: 1500, y: 100, collisionType: "", collisiontext: "" },
    ]);

    function addInventoryItem(item) {
        inventory.update(items => {
            return [...items, item];
        });
    }

    /* src\SimpleStateMachineModal.svelte generated by Svelte v3.59.2 */

    const { console: console_1$c } = globals;
    const file$p = "src\\SimpleStateMachineModal.svelte";

    function get_each_context$h(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[14] = list[i];
    	return child_ctx;
    }

    // (64:0) {#if isOpen}
    function create_if_block$e(ctx) {
    	let div3;
    	let div2;
    	let div0;
    	let h2;
    	let t0;
    	let t1;
    	let button;
    	let t3;
    	let div1;
    	let t4;
    	let t5;
    	let ul;
    	let mounted;
    	let dispose;
    	let each_value = /*items*/ ctx[3];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$h(get_each_context$h(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			div3 = element("div");
    			div2 = element("div");
    			div0 = element("div");
    			h2 = element("h2");
    			t0 = text(/*title*/ ctx[1]);
    			t1 = space();
    			button = element("button");
    			button.textContent = "×";
    			t3 = space();
    			div1 = element("div");
    			t4 = text(/*content*/ ctx[2]);
    			t5 = space();
    			ul = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h2, file$p, 67, 12, 2262);
    			add_location(button, file$p, 68, 12, 2292);
    			attr_dev(div0, "class", "modal-header svelte-13fuaz8");
    			add_location(div0, file$p, 66, 8, 2222);
    			attr_dev(ul, "class", "modal-items");
    			add_location(ul, file$p, 72, 12, 2428);
    			attr_dev(div1, "class", "modal-content svelte-13fuaz8");
    			add_location(div1, file$p, 70, 8, 2364);
    			attr_dev(div2, "class", "modal svelte-13fuaz8");
    			add_location(div2, file$p, 65, 8, 2193);
    			attr_dev(div3, "class", "modal-overlay svelte-13fuaz8");
    			add_location(div3, file$p, 64, 4, 2156);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div3, anchor);
    			append_dev(div3, div2);
    			append_dev(div2, div0);
    			append_dev(div0, h2);
    			append_dev(h2, t0);
    			append_dev(div0, t1);
    			append_dev(div0, button);
    			append_dev(div2, t3);
    			append_dev(div2, div1);
    			append_dev(div1, t4);
    			append_dev(div1, t5);
    			append_dev(div1, ul);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul, null);
    				}
    			}

    			if (!mounted) {
    				dispose = listen_dev(button, "click", /*closeModal*/ ctx[5], false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*title*/ 2) set_data_dev(t0, /*title*/ ctx[1]);
    			if (dirty & /*content*/ 4) set_data_dev(t4, /*content*/ ctx[2]);

    			if (dirty & /*handleItemClick, items*/ 72) {
    				each_value = /*items*/ ctx[3];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$h(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$h(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div3);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$e.name,
    		type: "if",
    		source: "(64:0) {#if isOpen}",
    		ctx
    	});

    	return block;
    }

    // (74:12) {#each items as item}
    function create_each_block$h(ctx) {
    	let button;
    	let t_value = /*item*/ ctx[14].label + "";
    	let t;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[10](/*item*/ ctx[14]);
    	}

    	const block = {
    		c: function create() {
    			button = element("button");
    			t = text(t_value);
    			add_location(button, file$p, 74, 16, 2505);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty & /*items*/ 8 && t_value !== (t_value = /*item*/ ctx[14].label + "")) set_data_dev(t, t_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$h.name,
    		type: "each",
    		source: "(74:12) {#each items as item}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$p(ctx) {
    	let if_block_anchor;
    	let if_block = /*isOpen*/ ctx[0] && create_if_block$e(ctx);

    	const block = {
    		c: function create() {
    			if (if_block) if_block.c();
    			if_block_anchor = empty();
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			if (if_block) if_block.m(target, anchor);
    			insert_dev(target, if_block_anchor, anchor);
    		},
    		p: function update(ctx, [dirty]) {
    			if (/*isOpen*/ ctx[0]) {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block$e(ctx);
    					if_block.c();
    					if_block.m(if_block_anchor.parentNode, if_block_anchor);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (if_block) if_block.d(detaching);
    			if (detaching) detach_dev(if_block_anchor);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$p.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$p($$self, $$props, $$invalidate) {
    	let $themeactions;
    	let $state;
    	validate_store(themeactions, 'themeactions');
    	component_subscribe($$self, themeactions, $$value => $$invalidate(12, $themeactions = $$value));
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('SimpleStateMachineModal', slots, []);
    	let { modalStates } = $$props;
    	let { isOpen = false } = $$props;
    	let state = writable("default"); // Manage modal state
    	validate_store(state, 'state');
    	component_subscribe($$self, state, value => $$invalidate(9, $state = value));
    	let title = modalStates.default.title; // Define title
    	let content = modalStates.default.content; // Define content
    	let items = modalStates.default.items; // Define items
    	let consequences = modalStates.default.consequences; //modalStates.default.consequences; // Define consequences
    	let { onClose } = $$props;

    	function closeModal() {
    		if (onClose) {
    			onClose();
    		}
    	}

    	function handleItemClick(item) {
    		// Decide what happens based on the item action
    		switch (item.action) {
    			case 'defined modal button':
    				console.log('Figure out how to call the imported store items here and delete the test ones below');
    				break;
    			case 'buyAxe':
    				console.log("Axe purchased");
    				closeModal();
    				break;
    			case 'guidance':
    			case 'forest':
    				console.log("Went to the forest. Leaves were blowing everywhere");
    			case 'default':
    				state.set(item.action);
    				break;
    			default:
    				console.log("Action not recognized");
    		}
    	} //Execute the consequences

    	function updateModal(newState) {
    		$$invalidate(1, title = modalStates[newState].title);
    		$$invalidate(2, content = modalStates[newState].content);
    		$$invalidate(3, items = modalStates[newState].items);
    		consequences = modalStates[newState].consequences;

    		//consequences.forEach(func => func()); // Execute each function in consequences
    		consequences.forEach(consequence => {
    			if ($themeactions[consequence]) {
    				$themeactions[consequence](); // Execute consequence functions by name   
    			}
    		});
    	}

    	$$self.$$.on_mount.push(function () {
    		if (modalStates === undefined && !('modalStates' in $$props || $$self.$$.bound[$$self.$$.props['modalStates']])) {
    			console_1$c.warn("<SimpleStateMachineModal> was created without expected prop 'modalStates'");
    		}

    		if (onClose === undefined && !('onClose' in $$props || $$self.$$.bound[$$self.$$.props['onClose']])) {
    			console_1$c.warn("<SimpleStateMachineModal> was created without expected prop 'onClose'");
    		}
    	});

    	const writable_props = ['modalStates', 'isOpen', 'onClose'];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$c.warn(`<SimpleStateMachineModal> was created with unknown prop '${key}'`);
    	});

    	const click_handler = item => handleItemClick(item);

    	$$self.$$set = $$props => {
    		if ('modalStates' in $$props) $$invalidate(7, modalStates = $$props.modalStates);
    		if ('isOpen' in $$props) $$invalidate(0, isOpen = $$props.isOpen);
    		if ('onClose' in $$props) $$invalidate(8, onClose = $$props.onClose);
    	};

    	$$self.$capture_state = () => ({
    		writable,
    		themeactions,
    		modalStates,
    		isOpen,
    		state,
    		title,
    		content,
    		items,
    		consequences,
    		onClose,
    		closeModal,
    		handleItemClick,
    		updateModal,
    		$themeactions,
    		$state
    	});

    	$$self.$inject_state = $$props => {
    		if ('modalStates' in $$props) $$invalidate(7, modalStates = $$props.modalStates);
    		if ('isOpen' in $$props) $$invalidate(0, isOpen = $$props.isOpen);
    		if ('state' in $$props) $$invalidate(4, state = $$props.state);
    		if ('title' in $$props) $$invalidate(1, title = $$props.title);
    		if ('content' in $$props) $$invalidate(2, content = $$props.content);
    		if ('items' in $$props) $$invalidate(3, items = $$props.items);
    		if ('consequences' in $$props) consequences = $$props.consequences;
    		if ('onClose' in $$props) $$invalidate(8, onClose = $$props.onClose);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	$$self.$$.update = () => {
    		if ($$self.$$.dirty & /*$state*/ 512) {
    			// Reactive statements to update the modal based on state changes
    			(updateModal($state));
    		}
    	};

    	return [
    		isOpen,
    		title,
    		content,
    		items,
    		state,
    		closeModal,
    		handleItemClick,
    		modalStates,
    		onClose,
    		$state,
    		click_handler
    	];
    }

    class SimpleStateMachineModal extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$p, create_fragment$p, safe_not_equal, { modalStates: 7, isOpen: 0, onClose: 8 });

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "SimpleStateMachineModal",
    			options,
    			id: create_fragment$p.name
    		});
    	}

    	get modalStates() {
    		throw new Error("<SimpleStateMachineModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set modalStates(value) {
    		throw new Error("<SimpleStateMachineModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get isOpen() {
    		throw new Error("<SimpleStateMachineModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set isOpen(value) {
    		throw new Error("<SimpleStateMachineModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	get onClose() {
    		throw new Error("<SimpleStateMachineModal>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set onClose(value) {
    		throw new Error("<SimpleStateMachineModal>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    /* src\MovingDotStatDisplay.svelte generated by Svelte v3.59.2 */

    const file$o = "src\\MovingDotStatDisplay.svelte";

    function get_each_context$g(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[13] = list[i];
    	return child_ctx;
    }

    function get_each_context_1$9(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[16] = list[i];
    	return child_ctx;
    }

    function get_each_context_2$3(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[16] = list[i];
    	return child_ctx;
    }

    // (14:6) {#each $objectives as item}
    function create_each_block_2$3(ctx) {
    	let li;
    	let t0_value = /*item*/ ctx[16].id + "";
    	let t0;
    	let t1;
    	let t2_value = /*item*/ ctx[16].name + "";
    	let t2;
    	let t3;
    	let t4_value = (/*item*/ ctx[16].complete ? '(Completed)' : '') + "";
    	let t4;
    	let li_class_value;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t0 = text(t0_value);
    			t1 = text(": ");
    			t2 = text(t2_value);
    			t3 = space();
    			t4 = text(t4_value);
    			attr_dev(li, "class", li_class_value = "" + (null_to_empty(/*item*/ ctx[16].complete ? 'completedobjetive' : '') + " svelte-w7krpq"));
    			add_location(li, file$o, 15, 8, 453);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t0);
    			append_dev(li, t1);
    			append_dev(li, t2);
    			append_dev(li, t3);
    			append_dev(li, t4);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*$objectives*/ 1 && t0_value !== (t0_value = /*item*/ ctx[16].id + "")) set_data_dev(t0, t0_value);
    			if (dirty & /*$objectives*/ 1 && t2_value !== (t2_value = /*item*/ ctx[16].name + "")) set_data_dev(t2, t2_value);
    			if (dirty & /*$objectives*/ 1 && t4_value !== (t4_value = (/*item*/ ctx[16].complete ? '(Completed)' : '') + "")) set_data_dev(t4, t4_value);

    			if (dirty & /*$objectives*/ 1 && li_class_value !== (li_class_value = "" + (null_to_empty(/*item*/ ctx[16].complete ? 'completedobjetive' : '') + " svelte-w7krpq"))) {
    				attr_dev(li, "class", li_class_value);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_2$3.name,
    		type: "each",
    		source: "(14:6) {#each $objectives as item}",
    		ctx
    	});

    	return block;
    }

    // (26:8) {#each $inventory as item}
    function create_each_block_1$9(ctx) {
    	let button;
    	let t0_value = /*item*/ ctx[16].name + "";
    	let t0;
    	let t1;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[12](/*item*/ ctx[16]);
    	}

    	const block = {
    		c: function create() {
    			button = element("button");
    			t0 = text(t0_value);
    			t1 = space();
    			attr_dev(button, "class", "skill");
    			add_location(button, file$o, 26, 10, 813);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t0);
    			append_dev(button, t1);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty & /*$inventory*/ 2 && t0_value !== (t0_value = /*item*/ ctx[16].name + "")) set_data_dev(t0, t0_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$9.name,
    		type: "each",
    		source: "(26:8) {#each $inventory as item}",
    		ctx
    	});

    	return block;
    }

    // (50:8) {#each $skills as skill}
    function create_each_block$g(ctx) {
    	let li;
    	let t0_value = /*skill*/ ctx[13].name + "";
    	let t0;
    	let t1;
    	let t2_value = /*skill*/ ctx[13].branch + "";
    	let t2;
    	let t3;
    	let t4_value = (/*skill*/ ctx[13].learned ? 'Yes' : 'No') + "";
    	let t4;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t0 = text(t0_value);
    			t1 = text(": ");
    			t2 = text(t2_value);
    			t3 = text(" - Learned: ");
    			t4 = text(t4_value);
    			add_location(li, file$o, 50, 10, 1580);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t0);
    			append_dev(li, t1);
    			append_dev(li, t2);
    			append_dev(li, t3);
    			append_dev(li, t4);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*$skills*/ 1024 && t0_value !== (t0_value = /*skill*/ ctx[13].name + "")) set_data_dev(t0, t0_value);
    			if (dirty & /*$skills*/ 1024 && t2_value !== (t2_value = /*skill*/ ctx[13].branch + "")) set_data_dev(t2, t2_value);
    			if (dirty & /*$skills*/ 1024 && t4_value !== (t4_value = (/*skill*/ ctx[13].learned ? 'Yes' : 'No') + "")) set_data_dev(t4, t4_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$g.name,
    		type: "each",
    		source: "(50:8) {#each $skills as skill}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$o(ctx) {
    	let div10;
    	let div0;
    	let h10;
    	let t1;
    	let ul0;
    	let t2;
    	let div2;
    	let div1;
    	let h20;
    	let t4;
    	let h60;
    	let t6;
    	let ul1;
    	let t7;
    	let div7;
    	let div6;
    	let h11;
    	let t9;
    	let h61;
    	let t11;
    	let div3;
    	let t12;
    	let t13;
    	let t14;
    	let t15;
    	let t16;
    	let t17;
    	let t18;
    	let t19;
    	let t20;
    	let t21;
    	let t22;
    	let t23;
    	let t24;
    	let div4;
    	let t25;
    	let t26;
    	let t27;
    	let div5;
    	let t28;
    	let t29;
    	let t30;
    	let div9;
    	let div8;
    	let h21;
    	let t32;
    	let h62;
    	let t34;
    	let ul2;
    	let each_value_2 = /*$objectives*/ ctx[0];
    	validate_each_argument(each_value_2);
    	let each_blocks_2 = [];

    	for (let i = 0; i < each_value_2.length; i += 1) {
    		each_blocks_2[i] = create_each_block_2$3(get_each_context_2$3(ctx, each_value_2, i));
    	}

    	let each_value_1 = /*$inventory*/ ctx[1];
    	validate_each_argument(each_value_1);
    	let each_blocks_1 = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks_1[i] = create_each_block_1$9(get_each_context_1$9(ctx, each_value_1, i));
    	}

    	let each_value = /*$skills*/ ctx[10];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$g(get_each_context$g(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			div10 = element("div");
    			div0 = element("div");
    			h10 = element("h1");
    			h10.textContent = "Objectives";
    			t1 = space();
    			ul0 = element("ul");

    			for (let i = 0; i < each_blocks_2.length; i += 1) {
    				each_blocks_2[i].c();
    			}

    			t2 = space();
    			div2 = element("div");
    			div1 = element("div");
    			h20 = element("h2");
    			h20.textContent = "Inventory";
    			t4 = space();
    			h60 = element("h6");
    			h60.textContent = "Affects movement and modal action options";
    			t6 = space();
    			ul1 = element("ul");

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				each_blocks_1[i].c();
    			}

    			t7 = space();
    			div7 = element("div");
    			div6 = element("div");
    			h11 = element("h1");
    			h11.textContent = "Player Stats";
    			t9 = space();
    			h61 = element("h6");
    			h61.textContent = "Affects how Modal Interactions";
    			t11 = space();
    			div3 = element("div");
    			t12 = text("Health: ");
    			t13 = text(/*$health*/ ctx[2]);
    			t14 = text(" Mana: ");
    			t15 = text(/*$mana*/ ctx[3]);
    			t16 = text(" Strength: ");
    			t17 = text(/*$strength*/ ctx[4]);
    			t18 = text(" Agility: ");
    			t19 = text(/*$agility*/ ctx[5]);
    			t20 = text(" Intelligence: ");
    			t21 = text(/*$intelligence*/ ctx[6]);
    			t22 = text(" Charisma: ");
    			t23 = text(/*$charisma*/ ctx[7]);
    			t24 = space();
    			div4 = element("div");
    			t25 = text("Luck: ");
    			t26 = text(/*$luck*/ ctx[8]);
    			t27 = space();
    			div5 = element("div");
    			t28 = text("Money: ");
    			t29 = text(/*$money*/ ctx[9]);
    			t30 = space();
    			div9 = element("div");
    			div8 = element("div");
    			h21 = element("h2");
    			h21.textContent = "Skill Tree / Abilities";
    			t32 = space();
    			h62 = element("h6");
    			h62.textContent = "Affects effectiveness of inventory";
    			t34 = space();
    			ul2 = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h10, file$o, 11, 4, 329);
    			add_location(ul0, file$o, 12, 4, 354);
    			attr_dev(div0, "class", "grid-statsitem svelte-w7krpq");
    			add_location(div0, file$o, 10, 2, 295);
    			add_location(h20, file$o, 22, 6, 677);
    			add_location(h60, file$o, 23, 6, 703);
    			add_location(ul1, file$o, 24, 6, 761);
    			attr_dev(div1, "class", "inventory svelte-w7krpq");
    			add_location(div1, file$o, 21, 4, 646);
    			attr_dev(div2, "class", "grid-statsitem svelte-w7krpq");
    			add_location(div2, file$o, 20, 2, 612);
    			add_location(h11, file$o, 36, 6, 1066);
    			add_location(h61, file$o, 37, 6, 1095);
    			add_location(div3, file$o, 38, 6, 1142);
    			add_location(div4, file$o, 39, 6, 1286);
    			add_location(div5, file$o, 40, 6, 1318);
    			attr_dev(div6, "class", "stats svelte-w7krpq");
    			add_location(div6, file$o, 35, 4, 1039);
    			attr_dev(div7, "class", "grid-statsitem svelte-w7krpq");
    			add_location(div7, file$o, 34, 2, 1005);
    			add_location(h21, file$o, 46, 6, 1440);
    			add_location(h62, file$o, 47, 6, 1479);
    			add_location(ul2, file$o, 48, 6, 1530);
    			attr_dev(div8, "class", "skill-tree svelte-w7krpq");
    			add_location(div8, file$o, 45, 4, 1408);
    			attr_dev(div9, "class", "grid-statsitem svelte-w7krpq");
    			add_location(div9, file$o, 44, 2, 1374);
    			attr_dev(div10, "class", "grid-statsContainer svelte-w7krpq");
    			add_location(div10, file$o, 9, 0, 258);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div10, anchor);
    			append_dev(div10, div0);
    			append_dev(div0, h10);
    			append_dev(div0, t1);
    			append_dev(div0, ul0);

    			for (let i = 0; i < each_blocks_2.length; i += 1) {
    				if (each_blocks_2[i]) {
    					each_blocks_2[i].m(ul0, null);
    				}
    			}

    			append_dev(div10, t2);
    			append_dev(div10, div2);
    			append_dev(div2, div1);
    			append_dev(div1, h20);
    			append_dev(div1, t4);
    			append_dev(div1, h60);
    			append_dev(div1, t6);
    			append_dev(div1, ul1);

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				if (each_blocks_1[i]) {
    					each_blocks_1[i].m(ul1, null);
    				}
    			}

    			append_dev(div10, t7);
    			append_dev(div10, div7);
    			append_dev(div7, div6);
    			append_dev(div6, h11);
    			append_dev(div6, t9);
    			append_dev(div6, h61);
    			append_dev(div6, t11);
    			append_dev(div6, div3);
    			append_dev(div3, t12);
    			append_dev(div3, t13);
    			append_dev(div3, t14);
    			append_dev(div3, t15);
    			append_dev(div3, t16);
    			append_dev(div3, t17);
    			append_dev(div3, t18);
    			append_dev(div3, t19);
    			append_dev(div3, t20);
    			append_dev(div3, t21);
    			append_dev(div3, t22);
    			append_dev(div3, t23);
    			append_dev(div6, t24);
    			append_dev(div6, div4);
    			append_dev(div4, t25);
    			append_dev(div4, t26);
    			append_dev(div6, t27);
    			append_dev(div6, div5);
    			append_dev(div5, t28);
    			append_dev(div5, t29);
    			append_dev(div10, t30);
    			append_dev(div10, div9);
    			append_dev(div9, div8);
    			append_dev(div8, h21);
    			append_dev(div8, t32);
    			append_dev(div8, h62);
    			append_dev(div8, t34);
    			append_dev(div8, ul2);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul2, null);
    				}
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*$objectives*/ 1) {
    				each_value_2 = /*$objectives*/ ctx[0];
    				validate_each_argument(each_value_2);
    				let i;

    				for (i = 0; i < each_value_2.length; i += 1) {
    					const child_ctx = get_each_context_2$3(ctx, each_value_2, i);

    					if (each_blocks_2[i]) {
    						each_blocks_2[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_2[i] = create_each_block_2$3(child_ctx);
    						each_blocks_2[i].c();
    						each_blocks_2[i].m(ul0, null);
    					}
    				}

    				for (; i < each_blocks_2.length; i += 1) {
    					each_blocks_2[i].d(1);
    				}

    				each_blocks_2.length = each_value_2.length;
    			}

    			if (dirty & /*toggleSkill, alert, $inventory*/ 2050) {
    				each_value_1 = /*$inventory*/ ctx[1];
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$9(ctx, each_value_1, i);

    					if (each_blocks_1[i]) {
    						each_blocks_1[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_1[i] = create_each_block_1$9(child_ctx);
    						each_blocks_1[i].c();
    						each_blocks_1[i].m(ul1, null);
    					}
    				}

    				for (; i < each_blocks_1.length; i += 1) {
    					each_blocks_1[i].d(1);
    				}

    				each_blocks_1.length = each_value_1.length;
    			}

    			if (dirty & /*$health*/ 4) set_data_dev(t13, /*$health*/ ctx[2]);
    			if (dirty & /*$mana*/ 8) set_data_dev(t15, /*$mana*/ ctx[3]);
    			if (dirty & /*$strength*/ 16) set_data_dev(t17, /*$strength*/ ctx[4]);
    			if (dirty & /*$agility*/ 32) set_data_dev(t19, /*$agility*/ ctx[5]);
    			if (dirty & /*$intelligence*/ 64) set_data_dev(t21, /*$intelligence*/ ctx[6]);
    			if (dirty & /*$charisma*/ 128) set_data_dev(t23, /*$charisma*/ ctx[7]);
    			if (dirty & /*$luck*/ 256) set_data_dev(t26, /*$luck*/ ctx[8]);
    			if (dirty & /*$money*/ 512) set_data_dev(t29, /*$money*/ ctx[9]);

    			if (dirty & /*$skills*/ 1024) {
    				each_value = /*$skills*/ ctx[10];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$g(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$g(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul2, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div10);
    			destroy_each(each_blocks_2, detaching);
    			destroy_each(each_blocks_1, detaching);
    			destroy_each(each_blocks, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$o.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$o($$self, $$props, $$invalidate) {
    	let $objectives;
    	let $inventory;
    	let $health;
    	let $mana;
    	let $strength;
    	let $agility;
    	let $intelligence;
    	let $charisma;
    	let $luck;
    	let $money;
    	let $skills;
    	validate_store(objectives, 'objectives');
    	component_subscribe($$self, objectives, $$value => $$invalidate(0, $objectives = $$value));
    	validate_store(inventory, 'inventory');
    	component_subscribe($$self, inventory, $$value => $$invalidate(1, $inventory = $$value));
    	validate_store(health, 'health');
    	component_subscribe($$self, health, $$value => $$invalidate(2, $health = $$value));
    	validate_store(mana, 'mana');
    	component_subscribe($$self, mana, $$value => $$invalidate(3, $mana = $$value));
    	validate_store(strength, 'strength');
    	component_subscribe($$self, strength, $$value => $$invalidate(4, $strength = $$value));
    	validate_store(agility, 'agility');
    	component_subscribe($$self, agility, $$value => $$invalidate(5, $agility = $$value));
    	validate_store(intelligence, 'intelligence');
    	component_subscribe($$self, intelligence, $$value => $$invalidate(6, $intelligence = $$value));
    	validate_store(charisma, 'charisma');
    	component_subscribe($$self, charisma, $$value => $$invalidate(7, $charisma = $$value));
    	validate_store(luck, 'luck');
    	component_subscribe($$self, luck, $$value => $$invalidate(8, $luck = $$value));
    	validate_store(money, 'money');
    	component_subscribe($$self, money, $$value => $$invalidate(9, $money = $$value));
    	validate_store(skills, 'skills');
    	component_subscribe($$self, skills, $$value => $$invalidate(10, $skills = $$value));
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotStatDisplay', slots, []);

    	function toggleSkill(skill) {
    		skill.learned = !skill.learned;
    		skills.update(n => n);
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<MovingDotStatDisplay> was created with unknown prop '${key}'`);
    	});

    	const click_handler = item => toggleSkill(alert(item.description, item.type));

    	$$self.$capture_state = () => ({
    		health,
    		mana,
    		strength,
    		agility,
    		intelligence,
    		charisma,
    		luck,
    		money,
    		inventory,
    		skills,
    		objectives,
    		toggleSkill,
    		$objectives,
    		$inventory,
    		$health,
    		$mana,
    		$strength,
    		$agility,
    		$intelligence,
    		$charisma,
    		$luck,
    		$money,
    		$skills
    	});

    	return [
    		$objectives,
    		$inventory,
    		$health,
    		$mana,
    		$strength,
    		$agility,
    		$intelligence,
    		$charisma,
    		$luck,
    		$money,
    		$skills,
    		toggleSkill,
    		click_handler
    	];
    }

    class MovingDotStatDisplay extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$o, create_fragment$o, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotStatDisplay",
    			options,
    			id: create_fragment$o.name
    		});
    	}
    }

    /* src\SimpleCollapsible.svelte generated by Svelte v3.59.2 */

    const file$n = "src\\SimpleCollapsible.svelte";

    // (16:4) {#if isOpen}
    function create_if_block$d(ctx) {
    	let div;
    	let current;
    	const default_slot_template = /*#slots*/ ctx[4].default;
    	const default_slot = create_slot(default_slot_template, ctx, /*$$scope*/ ctx[3], null);

    	const block = {
    		c: function create() {
    			div = element("div");
    			if (default_slot) default_slot.c();
    			attr_dev(div, "class", "content svelte-rzwxvd");
    			add_location(div, file$n, 16, 6, 335);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);

    			if (default_slot) {
    				default_slot.m(div, null);
    			}

    			current = true;
    		},
    		p: function update(ctx, dirty) {
    			if (default_slot) {
    				if (default_slot.p && (!current || dirty & /*$$scope*/ 8)) {
    					update_slot_base(
    						default_slot,
    						default_slot_template,
    						ctx,
    						/*$$scope*/ ctx[3],
    						!current
    						? get_all_dirty_from_scope(/*$$scope*/ ctx[3])
    						: get_slot_changes(default_slot_template, /*$$scope*/ ctx[3], dirty, null),
    						null
    					);
    				}
    			}
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(default_slot, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(default_slot, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			if (default_slot) default_slot.d(detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$d.name,
    		type: "if",
    		source: "(16:4) {#if isOpen}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$n(ctx) {
    	let div;
    	let button;
    	let t0_value = (/*isOpen*/ ctx[1] ? 'Close' : 'Open') + "";
    	let t0;
    	let t1;
    	let t2;
    	let t3;
    	let current;
    	let mounted;
    	let dispose;
    	let if_block = /*isOpen*/ ctx[1] && create_if_block$d(ctx);

    	const block = {
    		c: function create() {
    			div = element("div");
    			button = element("button");
    			t0 = text(t0_value);
    			t1 = space();
    			t2 = text(/*title*/ ctx[0]);
    			t3 = space();
    			if (if_block) if_block.c();
    			attr_dev(button, "class", "svelte-rzwxvd");
    			add_location(button, file$n, 11, 4, 210);
    			attr_dev(div, "class", "collapsible svelte-rzwxvd");
    			add_location(div, file$n, 10, 0, 179);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, button);
    			append_dev(button, t0);
    			append_dev(button, t1);
    			append_dev(button, t2);
    			append_dev(div, t3);
    			if (if_block) if_block.m(div, null);
    			current = true;

    			if (!mounted) {
    				dispose = listen_dev(button, "click", /*toggleCollapsible*/ ctx[2], false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if ((!current || dirty & /*isOpen*/ 2) && t0_value !== (t0_value = (/*isOpen*/ ctx[1] ? 'Close' : 'Open') + "")) set_data_dev(t0, t0_value);
    			if (!current || dirty & /*title*/ 1) set_data_dev(t2, /*title*/ ctx[0]);

    			if (/*isOpen*/ ctx[1]) {
    				if (if_block) {
    					if_block.p(ctx, dirty);

    					if (dirty & /*isOpen*/ 2) {
    						transition_in(if_block, 1);
    					}
    				} else {
    					if_block = create_if_block$d(ctx);
    					if_block.c();
    					transition_in(if_block, 1);
    					if_block.m(div, null);
    				}
    			} else if (if_block) {
    				group_outros();

    				transition_out(if_block, 1, 1, () => {
    					if_block = null;
    				});

    				check_outros();
    			}
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(if_block);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(if_block);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			if (if_block) if_block.d();
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$n.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$n($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('SimpleCollapsible', slots, ['default']);
    	let { title = '' } = $$props;
    	let isOpen = false;

    	function toggleCollapsible() {
    		$$invalidate(1, isOpen = !isOpen);
    	}

    	const writable_props = ['title'];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<SimpleCollapsible> was created with unknown prop '${key}'`);
    	});

    	$$self.$$set = $$props => {
    		if ('title' in $$props) $$invalidate(0, title = $$props.title);
    		if ('$$scope' in $$props) $$invalidate(3, $$scope = $$props.$$scope);
    	};

    	$$self.$capture_state = () => ({ title, isOpen, toggleCollapsible });

    	$$self.$inject_state = $$props => {
    		if ('title' in $$props) $$invalidate(0, title = $$props.title);
    		if ('isOpen' in $$props) $$invalidate(1, isOpen = $$props.isOpen);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [title, isOpen, toggleCollapsible, $$scope, slots];
    }

    class SimpleCollapsible extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$n, create_fragment$n, safe_not_equal, { title: 0 });

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "SimpleCollapsible",
    			options,
    			id: create_fragment$n.name
    		});
    	}

    	get title() {
    		throw new Error("<SimpleCollapsible>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set title(value) {
    		throw new Error("<SimpleCollapsible>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    /* src\BrainstormGameConfigsRandom.svelte generated by Svelte v3.59.2 */

    const { console: console_1$b } = globals;
    const file$m = "src\\BrainstormGameConfigsRandom.svelte";

    function get_each_context$f(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[9] = list[i];
    	return child_ctx;
    }

    function get_each_context_1$8(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[12] = list[i];
    	child_ctx[14] = i;
    	return child_ctx;
    }

    function get_each_context_2$2(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[15] = list[i];
    	return child_ctx;
    }

    function get_each_context_3(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[18] = list[i];
    	return child_ctx;
    }

    function get_each_context_4(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[21] = list[i];
    	return child_ctx;
    }

    function get_each_context_5(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[24] = list[i];
    	child_ctx[14] = i;
    	return child_ctx;
    }

    function get_each_context_6(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[15] = list[i];
    	return child_ctx;
    }

    function get_each_context_7(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[21] = list[i];
    	return child_ctx;
    }

    function get_each_context_8(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[30] = list[i];
    	return child_ctx;
    }

    function get_each_context_9(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[33] = list[i];
    	return child_ctx;
    }

    // (262:24) {#each randomContent.inventory as item}
    function create_each_block_9(ctx) {
    	let li;
    	let t0_value = /*item*/ ctx[33].name + "";
    	let t0;
    	let t1;
    	let t2_value = /*item*/ ctx[33].description + "";
    	let t2;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t0 = text(t0_value);
    			t1 = text(" - ");
    			t2 = text(t2_value);
    			attr_dev(li, "class", "svelte-utjjnp");
    			add_location(li, file$m, 262, 28, 10991);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t0);
    			append_dev(li, t1);
    			append_dev(li, t2);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContent*/ 1 && t0_value !== (t0_value = /*item*/ ctx[33].name + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*randomContent*/ 1 && t2_value !== (t2_value = /*item*/ ctx[33].description + "")) set_data_dev(t2, t2_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_9.name,
    		type: "each",
    		source: "(262:24) {#each randomContent.inventory as item}",
    		ctx
    	});

    	return block;
    }

    // (269:24) {#each randomContent.skills as skill}
    function create_each_block_8(ctx) {
    	let li;
    	let t0_value = /*skill*/ ctx[30].branch + "";
    	let t0;
    	let t1;
    	let t2_value = /*skill*/ ctx[30].name + "";
    	let t2;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t0 = text(t0_value);
    			t1 = text(" - ");
    			t2 = text(t2_value);
    			attr_dev(li, "class", "svelte-utjjnp");
    			toggle_class(li, "learned", /*skill*/ ctx[30].learned);
    			add_location(li, file$m, 269, 28, 11282);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t0);
    			append_dev(li, t1);
    			append_dev(li, t2);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContent*/ 1 && t0_value !== (t0_value = /*skill*/ ctx[30].branch + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*randomContent*/ 1 && t2_value !== (t2_value = /*skill*/ ctx[30].name + "")) set_data_dev(t2, t2_value);

    			if (dirty[0] & /*randomContent*/ 1) {
    				toggle_class(li, "learned", /*skill*/ ctx[30].learned);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_8.name,
    		type: "each",
    		source: "(269:24) {#each randomContent.skills as skill}",
    		ctx
    	});

    	return block;
    }

    // (276:24) {#each randomContent.objectives as objective}
    function create_each_block_7(ctx) {
    	let li;
    	let t0_value = /*objective*/ ctx[21].id + "";
    	let t0;
    	let t1;
    	let t2_value = /*objective*/ ctx[21].name + "";
    	let t2;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t0 = text(t0_value);
    			t1 = text(" - ");
    			t2 = text(t2_value);
    			attr_dev(li, "class", "svelte-utjjnp");
    			toggle_class(li, "complete", /*objective*/ ctx[21].complete);
    			add_location(li, file$m, 276, 28, 11612);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t0);
    			append_dev(li, t1);
    			append_dev(li, t2);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContent*/ 1 && t0_value !== (t0_value = /*objective*/ ctx[21].id + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*randomContent*/ 1 && t2_value !== (t2_value = /*objective*/ ctx[21].name + "")) set_data_dev(t2, t2_value);

    			if (dirty[0] & /*randomContent*/ 1) {
    				toggle_class(li, "complete", /*objective*/ ctx[21].complete);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_7.name,
    		type: "each",
    		source: "(276:24) {#each randomContent.objectives as objective}",
    		ctx
    	});

    	return block;
    }

    // (288:28) {#each chapter.targets as target}
    function create_each_block_6(ctx) {
    	let li;
    	let t0_value = /*target*/ ctx[15].name + "";
    	let t0;
    	let t1;
    	let t2_value = /*target*/ ctx[15].x + "";
    	let t2;
    	let t3;
    	let t4_value = /*target*/ ctx[15].y + "";
    	let t4;
    	let t5;
    	let t6_value = /*target*/ ctx[15].collisionType + "";
    	let t6;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t0 = text(t0_value);
    			t1 = text(" - (");
    			t2 = text(t2_value);
    			t3 = text(", ");
    			t4 = text(t4_value);
    			t5 = text(") - ");
    			t6 = text(t6_value);
    			attr_dev(li, "class", "svelte-utjjnp");
    			add_location(li, file$m, 288, 28, 12148);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t0);
    			append_dev(li, t1);
    			append_dev(li, t2);
    			append_dev(li, t3);
    			append_dev(li, t4);
    			append_dev(li, t5);
    			append_dev(li, t6);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContent*/ 1 && t0_value !== (t0_value = /*target*/ ctx[15].name + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*randomContent*/ 1 && t2_value !== (t2_value = /*target*/ ctx[15].x + "")) set_data_dev(t2, t2_value);
    			if (dirty[0] & /*randomContent*/ 1 && t4_value !== (t4_value = /*target*/ ctx[15].y + "")) set_data_dev(t4, t4_value);
    			if (dirty[0] & /*randomContent*/ 1 && t6_value !== (t6_value = /*target*/ ctx[15].collisionType + "")) set_data_dev(t6, t6_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_6.name,
    		type: "each",
    		source: "(288:28) {#each chapter.targets as target}",
    		ctx
    	});

    	return block;
    }

    // (284:24) {#each randomContent.story as chapter, i}
    function create_each_block_5(ctx) {
    	let h3;
    	let t0;
    	let t1_value = /*i*/ ctx[14] + 1 + "";
    	let t1;
    	let t2;
    	let p;
    	let t4;
    	let ul;
    	let t5;
    	let each_value_6 = /*chapter*/ ctx[24].targets;
    	validate_each_argument(each_value_6);
    	let each_blocks = [];

    	for (let i = 0; i < each_value_6.length; i += 1) {
    		each_blocks[i] = create_each_block_6(get_each_context_6(ctx, each_value_6, i));
    	}

    	const block = {
    		c: function create() {
    			h3 = element("h3");
    			t0 = text("Chapter ");
    			t1 = text(t1_value);
    			t2 = space();
    			p = element("p");
    			p.textContent = "Targets:";
    			t4 = space();
    			ul = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t5 = space();
    			add_location(h3, file$m, 284, 24, 11960);
    			add_location(p, file$m, 285, 24, 12010);
    			attr_dev(ul, "class", "svelte-utjjnp");
    			add_location(ul, file$m, 286, 24, 12051);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h3, anchor);
    			append_dev(h3, t0);
    			append_dev(h3, t1);
    			insert_dev(target, t2, anchor);
    			insert_dev(target, p, anchor);
    			insert_dev(target, t4, anchor);
    			insert_dev(target, ul, anchor);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul, null);
    				}
    			}

    			append_dev(ul, t5);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContent*/ 1) {
    				each_value_6 = /*chapter*/ ctx[24].targets;
    				validate_each_argument(each_value_6);
    				let i;

    				for (i = 0; i < each_value_6.length; i += 1) {
    					const child_ctx = get_each_context_6(ctx, each_value_6, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block_6(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul, t5);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value_6.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h3);
    			if (detaching) detach_dev(t2);
    			if (detaching) detach_dev(p);
    			if (detaching) detach_dev(t4);
    			if (detaching) detach_dev(ul);
    			destroy_each(each_blocks, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_5.name,
    		type: "each",
    		source: "(284:24) {#each randomContent.story as chapter, i}",
    		ctx
    	});

    	return block;
    }

    // (308:36) {#each storyPart.objectives as objective}
    function create_each_block_4(ctx) {
    	let li;
    	let span;
    	let t0_value = /*objective*/ ctx[21].name + "";
    	let t0;
    	let t1;
    	let input;
    	let t2;

    	const block = {
    		c: function create() {
    			li = element("li");
    			span = element("span");
    			t0 = text(t0_value);
    			t1 = space();
    			input = element("input");
    			t2 = space();
    			add_location(span, file$m, 309, 44, 13293);
    			attr_dev(input, "type", "text");
    			attr_dev(input, "placeholder", "Enter objective details");
    			add_location(input, file$m, 310, 44, 13368);
    			attr_dev(li, "class", "svelte-utjjnp");
    			add_location(li, file$m, 308, 40, 13243);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, span);
    			append_dev(span, t0);
    			append_dev(li, t1);
    			append_dev(li, input);
    			append_dev(li, t2);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t0_value !== (t0_value = /*objective*/ ctx[21].name + "")) set_data_dev(t0, t0_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_4.name,
    		type: "each",
    		source: "(308:36) {#each storyPart.objectives as objective}",
    		ctx
    	});

    	return block;
    }

    // (326:44) {#if target.subTargets && target.subTargets.length > 0}
    function create_if_block$c(ctx) {
    	let div;
    	let h5;
    	let t0;
    	let t1_value = /*target*/ ctx[15].name + "";
    	let t1;
    	let t2;
    	let ul;
    	let each_value_3 = /*target*/ ctx[15].subTargets;
    	validate_each_argument(each_value_3);
    	let each_blocks = [];

    	for (let i = 0; i < each_value_3.length; i += 1) {
    		each_blocks[i] = create_each_block_3(get_each_context_3(ctx, each_value_3, i));
    	}

    	const block = {
    		c: function create() {
    			div = element("div");
    			h5 = element("h5");
    			t0 = text("Subtargets of ");
    			t1 = text(t1_value);
    			t2 = space();
    			ul = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h5, file$m, 327, 52, 14525);
    			attr_dev(ul, "class", "svelte-utjjnp");
    			add_location(ul, file$m, 328, 52, 14615);
    			add_location(div, file$m, 326, 48, 14466);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, h5);
    			append_dev(h5, t0);
    			append_dev(h5, t1);
    			append_dev(div, t2);
    			append_dev(div, ul);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul, null);
    				}
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t1_value !== (t1_value = /*target*/ ctx[15].name + "")) set_data_dev(t1, t1_value);

    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2) {
    				each_value_3 = /*target*/ ctx[15].subTargets;
    				validate_each_argument(each_value_3);
    				let i;

    				for (i = 0; i < each_value_3.length; i += 1) {
    					const child_ctx = get_each_context_3(ctx, each_value_3, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block_3(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value_3.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			destroy_each(each_blocks, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$c.name,
    		type: "if",
    		source: "(326:44) {#if target.subTargets && target.subTargets.length > 0}",
    		ctx
    	});

    	return block;
    }

    // (330:56) {#each target.subTargets as subTarget}
    function create_each_block_3(ctx) {
    	let li;
    	let span;
    	let t0_value = /*subTarget*/ ctx[18].name + "";
    	let t0;
    	let t1;
    	let input;
    	let t2;
    	let p0;
    	let t3;
    	let t4_value = /*subTarget*/ ctx[18].x + "";
    	let t4;
    	let t5;
    	let t6_value = /*subTarget*/ ctx[18].y + "";
    	let t6;
    	let t7;
    	let t8;
    	let p1;
    	let t9;
    	let t10_value = /*subTarget*/ ctx[18].collisionType + "";
    	let t10;
    	let t11;
    	let textarea;
    	let textarea_value_value;
    	let t12;

    	const block = {
    		c: function create() {
    			li = element("li");
    			span = element("span");
    			t0 = text(t0_value);
    			t1 = space();
    			input = element("input");
    			t2 = space();
    			p0 = element("p");
    			t3 = text("Coordinates: (");
    			t4 = text(t4_value);
    			t5 = text(", ");
    			t6 = text(t6_value);
    			t7 = text(")");
    			t8 = space();
    			p1 = element("p");
    			t9 = text("Collision Type: ");
    			t10 = text(t10_value);
    			t11 = space();
    			textarea = element("textarea");
    			t12 = space();
    			add_location(span, file$m, 331, 64, 14847);
    			attr_dev(input, "type", "text");
    			attr_dev(input, "placeholder", "Enter subtarget details");
    			add_location(input, file$m, 332, 64, 14942);
    			add_location(p0, file$m, 333, 64, 15067);
    			add_location(p1, file$m, 334, 64, 15183);
    			attr_dev(textarea, "placeholder", "Enter collision text");
    			textarea.value = textarea_value_value = /*subTarget*/ ctx[18].collisiontext;
    			add_location(textarea, file$m, 335, 64, 15297);
    			attr_dev(li, "class", "svelte-utjjnp");
    			add_location(li, file$m, 330, 60, 14777);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, span);
    			append_dev(span, t0);
    			append_dev(li, t1);
    			append_dev(li, input);
    			append_dev(li, t2);
    			append_dev(li, p0);
    			append_dev(p0, t3);
    			append_dev(p0, t4);
    			append_dev(p0, t5);
    			append_dev(p0, t6);
    			append_dev(p0, t7);
    			append_dev(li, t8);
    			append_dev(li, p1);
    			append_dev(p1, t9);
    			append_dev(p1, t10);
    			append_dev(li, t11);
    			append_dev(li, textarea);
    			append_dev(li, t12);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t0_value !== (t0_value = /*subTarget*/ ctx[18].name + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t4_value !== (t4_value = /*subTarget*/ ctx[18].x + "")) set_data_dev(t4, t4_value);
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t6_value !== (t6_value = /*subTarget*/ ctx[18].y + "")) set_data_dev(t6, t6_value);
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t10_value !== (t10_value = /*subTarget*/ ctx[18].collisionType + "")) set_data_dev(t10, t10_value);

    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && textarea_value_value !== (textarea_value_value = /*subTarget*/ ctx[18].collisiontext)) {
    				prop_dev(textarea, "value", textarea_value_value);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_3.name,
    		type: "each",
    		source: "(330:56) {#each target.subTargets as subTarget}",
    		ctx
    	});

    	return block;
    }

    // (319:36) {#each storyPart.targets as target}
    function create_each_block_2$2(ctx) {
    	let li;
    	let span;
    	let t0_value = /*target*/ ctx[15].name + "";
    	let t0;
    	let t1;
    	let input;
    	let t2;
    	let p0;
    	let t3;
    	let t4_value = /*target*/ ctx[15].x + "";
    	let t4;
    	let t5;
    	let t6_value = /*target*/ ctx[15].y + "";
    	let t6;
    	let t7;
    	let t8;
    	let p1;
    	let t9;
    	let t10_value = /*target*/ ctx[15].collisionType + "";
    	let t10;
    	let t11;
    	let textarea;
    	let textarea_value_value;
    	let t12;
    	let t13;
    	let if_block = /*target*/ ctx[15].subTargets && /*target*/ ctx[15].subTargets.length > 0 && create_if_block$c(ctx);

    	const block = {
    		c: function create() {
    			li = element("li");
    			span = element("span");
    			t0 = text(t0_value);
    			t1 = space();
    			input = element("input");
    			t2 = space();
    			p0 = element("p");
    			t3 = text("Coordinates: (");
    			t4 = text(t4_value);
    			t5 = text(", ");
    			t6 = text(t6_value);
    			t7 = text(")");
    			t8 = space();
    			p1 = element("p");
    			t9 = text("Collision Type: ");
    			t10 = text(t10_value);
    			t11 = space();
    			textarea = element("textarea");
    			t12 = space();
    			if (if_block) if_block.c();
    			t13 = space();
    			add_location(span, file$m, 320, 44, 13882);
    			attr_dev(input, "type", "text");
    			attr_dev(input, "placeholder", "Enter target details");
    			add_location(input, file$m, 321, 44, 13954);
    			add_location(p0, file$m, 322, 44, 14056);
    			add_location(p1, file$m, 323, 44, 14146);
    			attr_dev(textarea, "placeholder", "Enter collision text");
    			textarea.value = textarea_value_value = /*target*/ ctx[15].collisiontext;
    			add_location(textarea, file$m, 324, 44, 14237);
    			attr_dev(li, "class", "svelte-utjjnp");
    			add_location(li, file$m, 319, 40, 13832);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, span);
    			append_dev(span, t0);
    			append_dev(li, t1);
    			append_dev(li, input);
    			append_dev(li, t2);
    			append_dev(li, p0);
    			append_dev(p0, t3);
    			append_dev(p0, t4);
    			append_dev(p0, t5);
    			append_dev(p0, t6);
    			append_dev(p0, t7);
    			append_dev(li, t8);
    			append_dev(li, p1);
    			append_dev(p1, t9);
    			append_dev(p1, t10);
    			append_dev(li, t11);
    			append_dev(li, textarea);
    			append_dev(li, t12);
    			if (if_block) if_block.m(li, null);
    			append_dev(li, t13);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t0_value !== (t0_value = /*target*/ ctx[15].name + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t4_value !== (t4_value = /*target*/ ctx[15].x + "")) set_data_dev(t4, t4_value);
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t6_value !== (t6_value = /*target*/ ctx[15].y + "")) set_data_dev(t6, t6_value);
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t10_value !== (t10_value = /*target*/ ctx[15].collisionType + "")) set_data_dev(t10, t10_value);

    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && textarea_value_value !== (textarea_value_value = /*target*/ ctx[15].collisiontext)) {
    				prop_dev(textarea, "value", textarea_value_value);
    			}

    			if (/*target*/ ctx[15].subTargets && /*target*/ ctx[15].subTargets.length > 0) {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block$c(ctx);
    					if_block.c();
    					if_block.m(li, t13);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    			if (if_block) if_block.d();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_2$2.name,
    		type: "each",
    		source: "(319:36) {#each storyPart.targets as target}",
    		ctx
    	});

    	return block;
    }

    // (302:20) {#each randomContentStructureSubtargets.story as storyPart, i}
    function create_each_block_1$8(ctx) {
    	let div2;
    	let h3;
    	let t0;
    	let t1_value = /*storyPart*/ ctx[12].part + 1 + "";
    	let t1;
    	let t2;
    	let div0;
    	let h40;
    	let t4;
    	let ul0;
    	let t5;
    	let div1;
    	let h41;
    	let t7;
    	let ul1;
    	let t8;
    	let each_value_4 = /*storyPart*/ ctx[12].objectives;
    	validate_each_argument(each_value_4);
    	let each_blocks_1 = [];

    	for (let i = 0; i < each_value_4.length; i += 1) {
    		each_blocks_1[i] = create_each_block_4(get_each_context_4(ctx, each_value_4, i));
    	}

    	let each_value_2 = /*storyPart*/ ctx[12].targets;
    	validate_each_argument(each_value_2);
    	let each_blocks = [];

    	for (let i = 0; i < each_value_2.length; i += 1) {
    		each_blocks[i] = create_each_block_2$2(get_each_context_2$2(ctx, each_value_2, i));
    	}

    	const block = {
    		c: function create() {
    			div2 = element("div");
    			h3 = element("h3");
    			t0 = text("Part ");
    			t1 = text(t1_value);
    			t2 = space();
    			div0 = element("div");
    			h40 = element("h4");
    			h40.textContent = "Objectives";
    			t4 = space();
    			ul0 = element("ul");

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				each_blocks_1[i].c();
    			}

    			t5 = space();
    			div1 = element("div");
    			h41 = element("h4");
    			h41.textContent = "Targets";
    			t7 = space();
    			ul1 = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t8 = space();
    			add_location(h3, file$m, 303, 28, 12962);
    			add_location(h40, file$m, 305, 32, 13065);
    			attr_dev(ul0, "class", "svelte-utjjnp");
    			add_location(ul0, file$m, 306, 32, 13118);
    			add_location(div0, file$m, 304, 28, 13026);
    			add_location(h41, file$m, 316, 32, 13663);
    			attr_dev(ul1, "class", "svelte-utjjnp");
    			add_location(ul1, file$m, 317, 32, 13713);
    			add_location(div1, file$m, 315, 28, 13624);
    			add_location(div2, file$m, 302, 24, 12927);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div2, anchor);
    			append_dev(div2, h3);
    			append_dev(h3, t0);
    			append_dev(h3, t1);
    			append_dev(div2, t2);
    			append_dev(div2, div0);
    			append_dev(div0, h40);
    			append_dev(div0, t4);
    			append_dev(div0, ul0);

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				if (each_blocks_1[i]) {
    					each_blocks_1[i].m(ul0, null);
    				}
    			}

    			append_dev(div2, t5);
    			append_dev(div2, div1);
    			append_dev(div1, h41);
    			append_dev(div1, t7);
    			append_dev(div1, ul1);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul1, null);
    				}
    			}

    			append_dev(div2, t8);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2 && t1_value !== (t1_value = /*storyPart*/ ctx[12].part + 1 + "")) set_data_dev(t1, t1_value);

    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2) {
    				each_value_4 = /*storyPart*/ ctx[12].objectives;
    				validate_each_argument(each_value_4);
    				let i;

    				for (i = 0; i < each_value_4.length; i += 1) {
    					const child_ctx = get_each_context_4(ctx, each_value_4, i);

    					if (each_blocks_1[i]) {
    						each_blocks_1[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_1[i] = create_each_block_4(child_ctx);
    						each_blocks_1[i].c();
    						each_blocks_1[i].m(ul0, null);
    					}
    				}

    				for (; i < each_blocks_1.length; i += 1) {
    					each_blocks_1[i].d(1);
    				}

    				each_blocks_1.length = each_value_4.length;
    			}

    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2) {
    				each_value_2 = /*storyPart*/ ctx[12].targets;
    				validate_each_argument(each_value_2);
    				let i;

    				for (i = 0; i < each_value_2.length; i += 1) {
    					const child_ctx = get_each_context_2$2(ctx, each_value_2, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block_2$2(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul1, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value_2.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div2);
    			destroy_each(each_blocks_1, detaching);
    			destroy_each(each_blocks, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$8.name,
    		type: "each",
    		source: "(302:20) {#each randomContentStructureSubtargets.story as storyPart, i}",
    		ctx
    	});

    	return block;
    }

    // (358:12) {#each timelinePoints as point}
    function create_each_block$f(ctx) {
    	let li;
    	let strong;
    	let t0_value = /*point*/ ctx[9].name + "";
    	let t0;
    	let t1;
    	let p;
    	let t2_value = /*point*/ ctx[9].details + "";
    	let t2;
    	let t3;

    	const block = {
    		c: function create() {
    			li = element("li");
    			strong = element("strong");
    			t0 = text(t0_value);
    			t1 = space();
    			p = element("p");
    			t2 = text(t2_value);
    			t3 = space();
    			add_location(strong, file$m, 359, 20, 16431);
    			add_location(p, file$m, 360, 20, 16482);
    			attr_dev(li, "class", "svelte-utjjnp");
    			add_location(li, file$m, 358, 16, 16405);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, strong);
    			append_dev(strong, t0);
    			append_dev(li, t1);
    			append_dev(li, p);
    			append_dev(p, t2);
    			append_dev(li, t3);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*timelinePoints*/ 4 && t0_value !== (t0_value = /*point*/ ctx[9].name + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*timelinePoints*/ 4 && t2_value !== (t2_value = /*point*/ ctx[9].details + "")) set_data_dev(t2, t2_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$f.name,
    		type: "each",
    		source: "(358:12) {#each timelinePoints as point}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$m(ctx) {
    	let div10;
    	let h10;
    	let t1;
    	let div8;
    	let div7;
    	let div4;
    	let div0;
    	let h11;
    	let t3;
    	let button0;
    	let t5;
    	let button1;
    	let t7;
    	let div3;
    	let div1;
    	let h20;
    	let t9;
    	let t10_value = /*randomContent*/ ctx[0].background + "";
    	let t10;
    	let t11;
    	let h21;
    	let t13;
    	let ul0;
    	let t14;
    	let h22;
    	let t16;
    	let ul1;
    	let t17;
    	let h23;
    	let t19;
    	let ul2;
    	let t20;
    	let div2;
    	let h24;
    	let t22;
    	let t23;
    	let div6;
    	let h12;
    	let t25;
    	let button2;
    	let t27;
    	let button3;
    	let t29;
    	let div5;
    	let t30;
    	let h13;
    	let t32;
    	let button4;
    	let t34;
    	let button5;
    	let t36;
    	let div9;
    	let ul3;
    	let mounted;
    	let dispose;
    	let each_value_9 = /*randomContent*/ ctx[0].inventory;
    	validate_each_argument(each_value_9);
    	let each_blocks_5 = [];

    	for (let i = 0; i < each_value_9.length; i += 1) {
    		each_blocks_5[i] = create_each_block_9(get_each_context_9(ctx, each_value_9, i));
    	}

    	let each_value_8 = /*randomContent*/ ctx[0].skills;
    	validate_each_argument(each_value_8);
    	let each_blocks_4 = [];

    	for (let i = 0; i < each_value_8.length; i += 1) {
    		each_blocks_4[i] = create_each_block_8(get_each_context_8(ctx, each_value_8, i));
    	}

    	let each_value_7 = /*randomContent*/ ctx[0].objectives;
    	validate_each_argument(each_value_7);
    	let each_blocks_3 = [];

    	for (let i = 0; i < each_value_7.length; i += 1) {
    		each_blocks_3[i] = create_each_block_7(get_each_context_7(ctx, each_value_7, i));
    	}

    	let each_value_5 = /*randomContent*/ ctx[0].story;
    	validate_each_argument(each_value_5);
    	let each_blocks_2 = [];

    	for (let i = 0; i < each_value_5.length; i += 1) {
    		each_blocks_2[i] = create_each_block_5(get_each_context_5(ctx, each_value_5, i));
    	}

    	let each_value_1 = /*randomContentStructureSubtargets*/ ctx[1].story;
    	validate_each_argument(each_value_1);
    	let each_blocks_1 = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks_1[i] = create_each_block_1$8(get_each_context_1$8(ctx, each_value_1, i));
    	}

    	let each_value = /*timelinePoints*/ ctx[2];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$f(get_each_context$f(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			div10 = element("div");
    			h10 = element("h1");
    			h10.textContent = "Prototyping Custom User Config game on the fly";
    			t1 = space();
    			div8 = element("div");
    			div7 = element("div");
    			div4 = element("div");
    			div0 = element("div");
    			h11 = element("h1");
    			h11.textContent = "Random Game Content Generator";
    			t3 = space();
    			button0 = element("button");
    			button0.textContent = "Generate New Content";
    			t5 = space();
    			button1 = element("button");
    			button1.textContent = "Copy Content Config to Clipboard";
    			t7 = space();
    			div3 = element("div");
    			div1 = element("div");
    			h20 = element("h2");
    			h20.textContent = "Background";
    			t9 = space();
    			t10 = text(t10_value);
    			t11 = space();
    			h21 = element("h2");
    			h21.textContent = "Inventory";
    			t13 = space();
    			ul0 = element("ul");

    			for (let i = 0; i < each_blocks_5.length; i += 1) {
    				each_blocks_5[i].c();
    			}

    			t14 = space();
    			h22 = element("h2");
    			h22.textContent = "Skills";
    			t16 = space();
    			ul1 = element("ul");

    			for (let i = 0; i < each_blocks_4.length; i += 1) {
    				each_blocks_4[i].c();
    			}

    			t17 = space();
    			h23 = element("h2");
    			h23.textContent = "Objectives";
    			t19 = space();
    			ul2 = element("ul");

    			for (let i = 0; i < each_blocks_3.length; i += 1) {
    				each_blocks_3[i].c();
    			}

    			t20 = space();
    			div2 = element("div");
    			h24 = element("h2");
    			h24.textContent = "Story";
    			t22 = space();

    			for (let i = 0; i < each_blocks_2.length; i += 1) {
    				each_blocks_2[i].c();
    			}

    			t23 = space();
    			div6 = element("div");
    			h12 = element("h1");
    			h12.textContent = "Random Game Structure Generator subtargets";
    			t25 = space();
    			button2 = element("button");
    			button2.textContent = "Generate New Content Story Structure";
    			t27 = space();
    			button3 = element("button");
    			button3.textContent = "Copy Random Structure to Clipboard";
    			t29 = space();
    			div5 = element("div");

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				each_blocks_1[i].c();
    			}

    			t30 = space();
    			h13 = element("h1");
    			h13.textContent = "Random Game Structure to Timeline Generator";
    			t32 = space();
    			button4 = element("button");
    			button4.textContent = "Generate Random Timeline from Story Structure";
    			t34 = space();
    			button5 = element("button");
    			button5.textContent = "Generate Linear Timeline from Story Structure";
    			t36 = space();
    			div9 = element("div");
    			ul3 = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h10, file$m, 244, 4, 10201);
    			add_location(h11, file$m, 250, 20, 10377);
    			add_location(button0, file$m, 251, 20, 10437);
    			add_location(button1, file$m, 252, 20, 10553);
    			add_location(div0, file$m, 249, 16, 10350);
    			add_location(h20, file$m, 256, 24, 10749);
    			add_location(h21, file$m, 259, 24, 10848);
    			attr_dev(ul0, "class", "svelte-utjjnp");
    			add_location(ul0, file$m, 260, 24, 10892);
    			add_location(h22, file$m, 266, 24, 11144);
    			attr_dev(ul1, "class", "svelte-utjjnp");
    			add_location(ul1, file$m, 267, 24, 11185);
    			add_location(h23, file$m, 273, 24, 11462);
    			attr_dev(ul2, "class", "svelte-utjjnp");
    			add_location(ul2, file$m, 274, 24, 11507);
    			add_location(div1, file$m, 255, 20, 10718);
    			add_location(h24, file$m, 282, 24, 11853);
    			add_location(div2, file$m, 281, 20, 11822);
    			attr_dev(div3, "class", "StatColumns svelte-utjjnp");
    			add_location(div3, file$m, 254, 16, 10671);
    			add_location(div4, file$m, 248, 12, 10323);
    			add_location(h12, file$m, 297, 16, 12442);
    			add_location(button2, file$m, 298, 16, 12511);
    			add_location(button3, file$m, 299, 16, 12677);
    			attr_dev(div5, "class", "StatColumns svelte-utjjnp");
    			add_location(div5, file$m, 300, 16, 12792);
    			add_location(div6, file$m, 296, 12, 12419);
    			attr_dev(div7, "class", "ContainerColumns svelte-utjjnp");
    			add_location(div7, file$m, 247, 8, 10279);
    			add_location(div8, file$m, 246, 4, 10264);
    			add_location(h13, file$m, 352, 4, 15984);
    			add_location(button4, file$m, 353, 4, 16042);
    			add_location(button5, file$m, 354, 4, 16177);
    			attr_dev(ul3, "class", "svelte-utjjnp");
    			add_location(ul3, file$m, 356, 8, 16338);
    			attr_dev(div9, "class", "timeline svelte-utjjnp");
    			add_location(div9, file$m, 355, 4, 16306);
    			add_location(div10, file$m, 243, 0, 10190);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div10, anchor);
    			append_dev(div10, h10);
    			append_dev(div10, t1);
    			append_dev(div10, div8);
    			append_dev(div8, div7);
    			append_dev(div7, div4);
    			append_dev(div4, div0);
    			append_dev(div0, h11);
    			append_dev(div0, t3);
    			append_dev(div0, button0);
    			append_dev(div0, t5);
    			append_dev(div0, button1);
    			append_dev(div4, t7);
    			append_dev(div4, div3);
    			append_dev(div3, div1);
    			append_dev(div1, h20);
    			append_dev(div1, t9);
    			append_dev(div1, t10);
    			append_dev(div1, t11);
    			append_dev(div1, h21);
    			append_dev(div1, t13);
    			append_dev(div1, ul0);

    			for (let i = 0; i < each_blocks_5.length; i += 1) {
    				if (each_blocks_5[i]) {
    					each_blocks_5[i].m(ul0, null);
    				}
    			}

    			append_dev(div1, t14);
    			append_dev(div1, h22);
    			append_dev(div1, t16);
    			append_dev(div1, ul1);

    			for (let i = 0; i < each_blocks_4.length; i += 1) {
    				if (each_blocks_4[i]) {
    					each_blocks_4[i].m(ul1, null);
    				}
    			}

    			append_dev(div1, t17);
    			append_dev(div1, h23);
    			append_dev(div1, t19);
    			append_dev(div1, ul2);

    			for (let i = 0; i < each_blocks_3.length; i += 1) {
    				if (each_blocks_3[i]) {
    					each_blocks_3[i].m(ul2, null);
    				}
    			}

    			append_dev(div3, t20);
    			append_dev(div3, div2);
    			append_dev(div2, h24);
    			append_dev(div2, t22);

    			for (let i = 0; i < each_blocks_2.length; i += 1) {
    				if (each_blocks_2[i]) {
    					each_blocks_2[i].m(div2, null);
    				}
    			}

    			append_dev(div7, t23);
    			append_dev(div7, div6);
    			append_dev(div6, h12);
    			append_dev(div6, t25);
    			append_dev(div6, button2);
    			append_dev(div6, t27);
    			append_dev(div6, button3);
    			append_dev(div6, t29);
    			append_dev(div6, div5);

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				if (each_blocks_1[i]) {
    					each_blocks_1[i].m(div5, null);
    				}
    			}

    			append_dev(div10, t30);
    			append_dev(div10, h13);
    			append_dev(div10, t32);
    			append_dev(div10, button4);
    			append_dev(div10, t34);
    			append_dev(div10, button5);
    			append_dev(div10, t36);
    			append_dev(div10, div9);
    			append_dev(div9, ul3);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul3, null);
    				}
    			}

    			if (!mounted) {
    				dispose = [
    					listen_dev(button0, "click", /*click_handler*/ ctx[7], false, false, false, false),
    					listen_dev(button1, "click", /*copyToClipboard*/ ctx[3], false, false, false, false),
    					listen_dev(button2, "click", /*click_handler_1*/ ctx[8], false, false, false, false),
    					listen_dev(button3, "click", /*copyToClipboardStructuresubtargets*/ ctx[4], false, false, false, false),
    					listen_dev(button4, "click", /*generateAndUpdaterandomContentStructureSubtargetsRandom*/ ctx[6], false, false, false, false),
    					listen_dev(button5, "click", /*generateAndUpdaterandomContentStructureSubtargets*/ ctx[5], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*randomContent*/ 1 && t10_value !== (t10_value = /*randomContent*/ ctx[0].background + "")) set_data_dev(t10, t10_value);

    			if (dirty[0] & /*randomContent*/ 1) {
    				each_value_9 = /*randomContent*/ ctx[0].inventory;
    				validate_each_argument(each_value_9);
    				let i;

    				for (i = 0; i < each_value_9.length; i += 1) {
    					const child_ctx = get_each_context_9(ctx, each_value_9, i);

    					if (each_blocks_5[i]) {
    						each_blocks_5[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_5[i] = create_each_block_9(child_ctx);
    						each_blocks_5[i].c();
    						each_blocks_5[i].m(ul0, null);
    					}
    				}

    				for (; i < each_blocks_5.length; i += 1) {
    					each_blocks_5[i].d(1);
    				}

    				each_blocks_5.length = each_value_9.length;
    			}

    			if (dirty[0] & /*randomContent*/ 1) {
    				each_value_8 = /*randomContent*/ ctx[0].skills;
    				validate_each_argument(each_value_8);
    				let i;

    				for (i = 0; i < each_value_8.length; i += 1) {
    					const child_ctx = get_each_context_8(ctx, each_value_8, i);

    					if (each_blocks_4[i]) {
    						each_blocks_4[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_4[i] = create_each_block_8(child_ctx);
    						each_blocks_4[i].c();
    						each_blocks_4[i].m(ul1, null);
    					}
    				}

    				for (; i < each_blocks_4.length; i += 1) {
    					each_blocks_4[i].d(1);
    				}

    				each_blocks_4.length = each_value_8.length;
    			}

    			if (dirty[0] & /*randomContent*/ 1) {
    				each_value_7 = /*randomContent*/ ctx[0].objectives;
    				validate_each_argument(each_value_7);
    				let i;

    				for (i = 0; i < each_value_7.length; i += 1) {
    					const child_ctx = get_each_context_7(ctx, each_value_7, i);

    					if (each_blocks_3[i]) {
    						each_blocks_3[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_3[i] = create_each_block_7(child_ctx);
    						each_blocks_3[i].c();
    						each_blocks_3[i].m(ul2, null);
    					}
    				}

    				for (; i < each_blocks_3.length; i += 1) {
    					each_blocks_3[i].d(1);
    				}

    				each_blocks_3.length = each_value_7.length;
    			}

    			if (dirty[0] & /*randomContent*/ 1) {
    				each_value_5 = /*randomContent*/ ctx[0].story;
    				validate_each_argument(each_value_5);
    				let i;

    				for (i = 0; i < each_value_5.length; i += 1) {
    					const child_ctx = get_each_context_5(ctx, each_value_5, i);

    					if (each_blocks_2[i]) {
    						each_blocks_2[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_2[i] = create_each_block_5(child_ctx);
    						each_blocks_2[i].c();
    						each_blocks_2[i].m(div2, null);
    					}
    				}

    				for (; i < each_blocks_2.length; i += 1) {
    					each_blocks_2[i].d(1);
    				}

    				each_blocks_2.length = each_value_5.length;
    			}

    			if (dirty[0] & /*randomContentStructureSubtargets*/ 2) {
    				each_value_1 = /*randomContentStructureSubtargets*/ ctx[1].story;
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$8(ctx, each_value_1, i);

    					if (each_blocks_1[i]) {
    						each_blocks_1[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_1[i] = create_each_block_1$8(child_ctx);
    						each_blocks_1[i].c();
    						each_blocks_1[i].m(div5, null);
    					}
    				}

    				for (; i < each_blocks_1.length; i += 1) {
    					each_blocks_1[i].d(1);
    				}

    				each_blocks_1.length = each_value_1.length;
    			}

    			if (dirty[0] & /*timelinePoints*/ 4) {
    				each_value = /*timelinePoints*/ ctx[2];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$f(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$f(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul3, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div10);
    			destroy_each(each_blocks_5, detaching);
    			destroy_each(each_blocks_4, detaching);
    			destroy_each(each_blocks_3, detaching);
    			destroy_each(each_blocks_2, detaching);
    			destroy_each(each_blocks_1, detaching);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$m.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function generateRandomContent() {
    	const backgrounds = [
    		'/AutoGameBackgrounds/space_background.png',
    		'/AutoGameBackgrounds/forest_background.png',
    		'/AutoGameBackgrounds/city_background.png',
    		'/AutoGameBackgrounds/desert_background.png',
    		'/AutoGameBackgrounds/underwater_background.png'
    	];

    	const weaponTypes = ['Sword', 'Bow', 'Staff', 'Dagger', 'Axe', 'Mace', 'Whip', 'Spear'];
    	const armorTypes = ['Helmet', 'Chestplate', 'Leggings', 'Boots', 'Shield', 'Gloves', 'Cloak'];
    	const consumableTypes = ['Health Potion', 'Mana Potion', 'Stamina Potion', 'Antidote', 'Bomb'];

    	const skillBranches = [
    		'Combat',
    		'Magic',
    		'Stealth',
    		'Crafting',
    		'Alchemy',
    		'Archery',
    		'Blacksmithing'
    	];

    	const objectiveNames = [
    		'Explore',
    		'Gather Resources',
    		'Defeat Enemy',
    		'Find Artifact',
    		'Rescue Prisoner',
    		'Escort NPC',
    		'Solve Puzzle',
    		'Repair Structure',
    		'Negotiate Treaty',
    		'Investigate Mystery'
    	];

    	const targetNames = [
    		'Goblin',
    		'Skeleton',
    		'Dragon',
    		'Bandit',
    		'Orc',
    		'Troll',
    		'Giant Spider',
    		'Undead Knight',
    		'Corrupted Mage',
    		'Rogue Assassin'
    	];

    	const collisionTypes = ['alert', 'battle', 'dialogue', 'trade', 'cutscene'];
    	const randomBackground = backgrounds[Math.floor(Math.random() * backgrounds.length)];

    	const randomInventory = [
    		...Array.from({ length: 3 }, () => ({
    			type: 'weapon',
    			name: `${weaponTypes[Math.floor(Math.random() * weaponTypes.length)]}`,
    			description: 'A powerful weapon.'
    		})),
    		...Array.from({ length: 2 }, () => ({
    			type: 'armor',
    			name: `${armorTypes[Math.floor(Math.random() * armorTypes.length)]}`,
    			description: 'Protective gear.'
    		})),
    		...Array.from({ length: 2 }, () => ({
    			type: 'consumable',
    			name: `${consumableTypes[Math.floor(Math.random() * consumableTypes.length)]}`,
    			description: 'A helpful item.'
    		}))
    	];

    	const randomSkills = Array.from({ length: 15 }, (_, index) => ({
    		branch: skillBranches[Math.floor(Math.random() * skillBranches.length)],
    		name: `Skill ${index + 1}`,
    		learned: Math.random() < 0.5
    	}));

    	const randomObjectives = Array.from({ length: 5 }, (_, index) => ({
    		id: `Mission ${index + 1}`,
    		name: `${objectiveNames[Math.floor(Math.random() * objectiveNames.length)]} Mission`,
    		complete: Math.random() < 0.5
    	}));

    	const randomStory = Array.from({ length: 5 }, (_, index) => ({
    		part: index,
    		objectives: Array.from({ length: 2 }, () => ({
    			id: `Task ${Math.floor(Math.random() * 5) + 1}`,
    			name: `${objectiveNames[Math.floor(Math.random() * objectiveNames.length)]} Task`,
    			complete: Math.random() < 0.5
    		})),
    		targets: Array.from({ length: 3 }, () => ({
    			name: `${targetNames[Math.floor(Math.random() * targetNames.length)]}`,
    			x: Math.floor(Math.random() * 100),
    			y: Math.floor(Math.random() * 100),
    			collisionType: collisionTypes[Math.floor(Math.random() * collisionTypes.length)],
    			collisiontext: 'Test Collision'
    		}))
    	}));

    	const randomContent = {
    		background: randomBackground,
    		inventory: randomInventory,
    		skills: randomSkills,
    		persistentTargets: [],
    		objectives: randomObjectives,
    		story: randomStory,
    		actions: {
    			Buybook() {
    				
    			}, // Logic to buy a book
    			// Logic to buy a book
    			
    		}
    	};

    	return randomContent;
    }

    // function generateRandomContentStructure() {
    // // ... (existing code for generating random content)
    //     const randomStoryPartslengths = Math.floor(Math.random() * 5) + 1; // Generate random number of story parts (1-5)
    //     const randomStorystructure = Array.from({ length: randomStoryPartslengths }, (_, index) => ({
    //     part: index,
    //     objectives: Array.from({ length: Math.floor(Math.random() * 3) + 1 }, (_, idx) => ({
    //         id: `Objective${index + 1}_${idx + 1}`,
    //         name: `Objective ${index + 1}.${idx + 1}`,
    //         complete: false,
    //     })),
    //     targets: Array.from({ length: Math.floor(Math.random() * 4) + 1 }, (_, idx) => ({
    //         name: `Target${index + 1}_${idx + 1}`,
    //         x: Math.floor(Math.random() * 100),
    //         y: Math.floor(Math.random() * 100),
    //         collisionType: 'alert',
    //         collisiontext: `Placeholder text for Target ${index + 1}.${idx + 1}`,
    //     })),
    //     }));
    //     const randomContentstructure = {
    //     // ... (existing properties)
    //         story: randomStorystructure,
    //     };
    //     return randomContentstructure;
    // }
    function generateRandomContentStructureSubtargets$1() {
    	// Random number generator for various properties
    	function getRandomNumber(max, min = 1) {
    		return Math.floor(Math.random() * (max - min + 1)) + min;
    	}

    	// Recursive function to generate targets and optionally subtargets
    	function generateTargets(level = 0) {
    		const numberOfTargets = getRandomNumber(4); // Generate up to 4 targets

    		const targets = Array.from({ length: numberOfTargets }, (_, idx) => {
    			const target = {
    				name: `Target${level}_${idx + 1}`,
    				x: getRandomNumber(100),
    				y: getRandomNumber(100),
    				collisionType: 'alert',
    				collisiontext: `Placeholder text for Target ${level}.${idx + 1}`
    			};

    			// Randomly decide if this target should have subtargets, less likely as level increases
    			if (Math.random() < 0.5 - level * 0.1) {
    				target.subTargets = generateTargets(level + 1);
    			}

    			return target;
    		});

    		return targets;
    	}

    	// Generate the random story structure with nested targets
    	const randomStoryPartsLength = getRandomNumber(5); // Generate random number of story parts (1-5)

    	const randomStoryStructure = Array.from({ length: randomStoryPartsLength }, (_, index) => ({
    		part: index,
    		objectives: Array.from({ length: getRandomNumber(3) }, (_, idx) => ({
    			id: `Objective${index + 1}_${idx + 1}`,
    			name: `Objective ${index + 1}.${idx + 1}`,
    			complete: false
    		})),
    		targets: generateTargets()
    	}));

    	// Compile the full random content structure
    	const randomContentStructure = { story: randomStoryStructure };

    	return randomContentStructure;
    }

    function copyToClipboardStructure() {
    	navigator.clipboard.writeText(JSON.stringify(randomContentstructure, null, 2)).then(() => {
    		alert('Random content Structure copied to clipboard!');
    	}).catch(error => {
    		console.error('Failed to copy to clipboard:', error);
    		alert('Error, Random content Structure failed to copy due to error!');
    	});
    }

    // Flatten and prepare targets for the timeline
    function prepareTimelineData(story) {
    	const allPoints = [];

    	function recurseTargets(targets, prefix = '') {
    		targets.forEach((target, index) => {
    			const path = `${prefix}Target ${index + 1}: ${target.name}`;

    			allPoints.push({
    				name: path,
    				details: target.collisiontext
    			});

    			if (target.subTargets && target.subTargets.length > 0) {
    				recurseTargets(target.subTargets, path + ' -> ');
    			}
    		});
    	}

    	story.forEach((part, index) => {
    		if (part.targets) {
    			recurseTargets(part.targets, `Part ${index + 1} -> `);
    		}
    	});

    	return allPoints;
    }

    function instance$m($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('BrainstormGameConfigsRandom', slots, []);
    	let randomContent = generateRandomContent();

    	// let randomContentstructure = generateRandomContentStructure();
    	let randomContentStructureSubtargets = generateRandomContentStructureSubtargets$1();

    	console.log(randomContentStructureSubtargets);

    	function copyToClipboard() {
    		navigator.clipboard.writeText(JSON.stringify(randomContent, null, 2)).then(() => {
    			alert('Random content copied to clipboard!');
    		}).catch(error => {
    			console.error('Failed to copy to clipboard:', error);
    			alert('Error, Random content failed to copy due to error!');
    		});
    	}

    	function copyToClipboardStructuresubtargets() {
    		navigator.clipboard.writeText(JSON.stringify(randomContentStructureSubtargets, null, 2)).then(() => {
    			alert('Random content Structure copied to clipboard!');
    		}).catch(error => {
    			console.error('Failed to copy to clipboard:', error);
    			alert('Error, Random content Structure failed to copy due to error!');
    		});
    	}

    	let timelinePoints = [];

    	// Function to generate a new random structure and update the timeline
    	function generateAndUpdaterandomContentStructureSubtargets() {
    		$$invalidate(2, timelinePoints = prepareTimelineData(randomContentStructureSubtargets.story));
    	}

    	function generateAndUpdaterandomContentStructureSubtargetsRandom() {
    		const randomallPoints = prepareTimelineData(randomContentStructureSubtargets.story);
    		randomallPoints.sort(() => Math.random() - 0.5);
    		$$invalidate(2, timelinePoints = randomallPoints);
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$b.warn(`<BrainstormGameConfigsRandom> was created with unknown prop '${key}'`);
    	});

    	const click_handler = () => $$invalidate(0, randomContent = generateRandomContent());
    	const click_handler_1 = () => $$invalidate(1, randomContentStructureSubtargets = generateRandomContentStructureSubtargets$1());

    	$$self.$capture_state = () => ({
    		generateRandomContent,
    		generateRandomContentStructureSubtargets: generateRandomContentStructureSubtargets$1,
    		randomContent,
    		randomContentStructureSubtargets,
    		copyToClipboard,
    		copyToClipboardStructure,
    		copyToClipboardStructuresubtargets,
    		prepareTimelineData,
    		timelinePoints,
    		generateAndUpdaterandomContentStructureSubtargets,
    		generateAndUpdaterandomContentStructureSubtargetsRandom
    	});

    	$$self.$inject_state = $$props => {
    		if ('randomContent' in $$props) $$invalidate(0, randomContent = $$props.randomContent);
    		if ('randomContentStructureSubtargets' in $$props) $$invalidate(1, randomContentStructureSubtargets = $$props.randomContentStructureSubtargets);
    		if ('timelinePoints' in $$props) $$invalidate(2, timelinePoints = $$props.timelinePoints);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		randomContent,
    		randomContentStructureSubtargets,
    		timelinePoints,
    		copyToClipboard,
    		copyToClipboardStructuresubtargets,
    		generateAndUpdaterandomContentStructureSubtargets,
    		generateAndUpdaterandomContentStructureSubtargetsRandom,
    		click_handler,
    		click_handler_1
    	];
    }

    class BrainstormGameConfigsRandom extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$m, create_fragment$m, safe_not_equal, {}, null, [-1, -1]);

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "BrainstormGameConfigsRandom",
    			options,
    			id: create_fragment$m.name
    		});
    	}
    }

    /* src\BrainstormStateTransitionsRandom.svelte generated by Svelte v3.59.2 */

    const { console: console_1$a } = globals;
    const file$l = "src\\BrainstormStateTransitionsRandom.svelte";

    function get_each_context$e(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[47] = list[i];
    	return child_ctx;
    }

    function get_each_context_1$7(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[50] = list[i];
    	return child_ctx;
    }

    function get_each_context_2$1(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[47] = list[i];
    	return child_ctx;
    }

    // (293:4) {#if $timelines.length > 0}
    function create_if_block_4(ctx) {
    	let h20;
    	let t1;
    	let t2;
    	let h21;
    	let t4;
    	let button;
    	let t6;
    	let ul;
    	let mounted;
    	let dispose;
    	let each_value_1 = /*$timelines*/ ctx[5];
    	validate_each_argument(each_value_1);
    	let each_blocks_1 = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks_1[i] = create_each_block_1$7(get_each_context_1$7(ctx, each_value_1, i));
    	}

    	let each_value = /*$mergedTimeline*/ ctx[8];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$e(get_each_context$e(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			h20 = element("h2");
    			h20.textContent = "Timelines";
    			t1 = space();

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				each_blocks_1[i].c();
    			}

    			t2 = space();
    			h21 = element("h2");
    			h21.textContent = "Merged Timeline";
    			t4 = space();
    			button = element("button");
    			button.textContent = "Merge Timelines";
    			t6 = space();
    			ul = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h20, file$l, 293, 6, 11327);
    			add_location(h21, file$l, 306, 6, 11735);
    			add_location(button, file$l, 307, 6, 11767);
    			add_location(ul, file$l, 308, 6, 11833);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h20, anchor);
    			insert_dev(target, t1, anchor);

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				if (each_blocks_1[i]) {
    					each_blocks_1[i].m(target, anchor);
    				}
    			}

    			insert_dev(target, t2, anchor);
    			insert_dev(target, h21, anchor);
    			insert_dev(target, t4, anchor);
    			insert_dev(target, button, anchor);
    			insert_dev(target, t6, anchor);
    			insert_dev(target, ul, anchor);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul, null);
    				}
    			}

    			if (!mounted) {
    				dispose = listen_dev(button, "click", /*mergeTimelines*/ ctx[15], false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*generateRandomPoints, $timelines*/ 16416) {
    				each_value_1 = /*$timelines*/ ctx[5];
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$7(ctx, each_value_1, i);

    					if (each_blocks_1[i]) {
    						each_blocks_1[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_1[i] = create_each_block_1$7(child_ctx);
    						each_blocks_1[i].c();
    						each_blocks_1[i].m(t2.parentNode, t2);
    					}
    				}

    				for (; i < each_blocks_1.length; i += 1) {
    					each_blocks_1[i].d(1);
    				}

    				each_blocks_1.length = each_value_1.length;
    			}

    			if (dirty[0] & /*$mergedTimeline*/ 256) {
    				each_value = /*$mergedTimeline*/ ctx[8];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$e(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$e(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h20);
    			if (detaching) detach_dev(t1);
    			destroy_each(each_blocks_1, detaching);
    			if (detaching) detach_dev(t2);
    			if (detaching) detach_dev(h21);
    			if (detaching) detach_dev(t4);
    			if (detaching) detach_dev(button);
    			if (detaching) detach_dev(t6);
    			if (detaching) detach_dev(ul);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_4.name,
    		type: "if",
    		source: "(293:4) {#if $timelines.length > 0}",
    		ctx
    	});

    	return block;
    }

    // (298:10) {#each timeline.points as point}
    function create_each_block_2$1(ctx) {
    	let li;
    	let t0_value = /*point*/ ctx[47].year + "";
    	let t0;
    	let t1;
    	let t2_value = /*point*/ ctx[47].description + "";
    	let t2;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t0 = text(t0_value);
    			t1 = text(": ");
    			t2 = text(t2_value);
    			add_location(li, file$l, 298, 12, 11496);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t0);
    			append_dev(li, t1);
    			append_dev(li, t2);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*$timelines*/ 32 && t0_value !== (t0_value = /*point*/ ctx[47].year + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*$timelines*/ 32 && t2_value !== (t2_value = /*point*/ ctx[47].description + "")) set_data_dev(t2, t2_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_2$1.name,
    		type: "each",
    		source: "(298:10) {#each timeline.points as point}",
    		ctx
    	});

    	return block;
    }

    // (295:6) {#each $timelines as timeline}
    function create_each_block_1$7(ctx) {
    	let h3;
    	let t0;
    	let t1_value = /*timeline*/ ctx[50].id + "";
    	let t1;
    	let t2;
    	let ul;
    	let t3;
    	let button;
    	let t4;
    	let t5_value = /*timeline*/ ctx[50].id + "";
    	let t5;
    	let mounted;
    	let dispose;
    	let each_value_2 = /*timeline*/ ctx[50].points;
    	validate_each_argument(each_value_2);
    	let each_blocks = [];

    	for (let i = 0; i < each_value_2.length; i += 1) {
    		each_blocks[i] = create_each_block_2$1(get_each_context_2$1(ctx, each_value_2, i));
    	}

    	function click_handler() {
    		return /*click_handler*/ ctx[24](/*timeline*/ ctx[50]);
    	}

    	const block = {
    		c: function create() {
    			h3 = element("h3");
    			t0 = text("Timeline ");
    			t1 = text(t1_value);
    			t2 = space();
    			ul = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t3 = space();
    			button = element("button");
    			t4 = text("Add Points to Timeline ");
    			t5 = text(t5_value);
    			add_location(h3, file$l, 295, 8, 11393);
    			add_location(ul, file$l, 296, 8, 11434);
    			add_location(button, file$l, 301, 8, 11582);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h3, anchor);
    			append_dev(h3, t0);
    			append_dev(h3, t1);
    			insert_dev(target, t2, anchor);
    			insert_dev(target, ul, anchor);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul, null);
    				}
    			}

    			insert_dev(target, t3, anchor);
    			insert_dev(target, button, anchor);
    			append_dev(button, t4);
    			append_dev(button, t5);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty[0] & /*$timelines*/ 32 && t1_value !== (t1_value = /*timeline*/ ctx[50].id + "")) set_data_dev(t1, t1_value);

    			if (dirty[0] & /*$timelines*/ 32) {
    				each_value_2 = /*timeline*/ ctx[50].points;
    				validate_each_argument(each_value_2);
    				let i;

    				for (i = 0; i < each_value_2.length; i += 1) {
    					const child_ctx = get_each_context_2$1(ctx, each_value_2, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block_2$1(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value_2.length;
    			}

    			if (dirty[0] & /*$timelines*/ 32 && t5_value !== (t5_value = /*timeline*/ ctx[50].id + "")) set_data_dev(t5, t5_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h3);
    			if (detaching) detach_dev(t2);
    			if (detaching) detach_dev(ul);
    			destroy_each(each_blocks, detaching);
    			if (detaching) detach_dev(t3);
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$7.name,
    		type: "each",
    		source: "(295:6) {#each $timelines as timeline}",
    		ctx
    	});

    	return block;
    }

    // (310:8) {#each $mergedTimeline as point}
    function create_each_block$e(ctx) {
    	let li;
    	let t0_value = /*point*/ ctx[47].year + "";
    	let t0;
    	let t1;
    	let t2_value = /*point*/ ctx[47].description + "";
    	let t2;
    	let t3;
    	let t4_value = /*point*/ ctx[47].timelineId + "";
    	let t4;
    	let t5;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t0 = text(t0_value);
    			t1 = text(": ");
    			t2 = text(t2_value);
    			t3 = text(" (Timeline ");
    			t4 = text(t4_value);
    			t5 = text(")\r\n          ");
    			add_location(li, file$l, 310, 10, 11891);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t0);
    			append_dev(li, t1);
    			append_dev(li, t2);
    			append_dev(li, t3);
    			append_dev(li, t4);
    			append_dev(li, t5);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*$mergedTimeline*/ 256 && t0_value !== (t0_value = /*point*/ ctx[47].year + "")) set_data_dev(t0, t0_value);
    			if (dirty[0] & /*$mergedTimeline*/ 256 && t2_value !== (t2_value = /*point*/ ctx[47].description + "")) set_data_dev(t2, t2_value);
    			if (dirty[0] & /*$mergedTimeline*/ 256 && t4_value !== (t4_value = /*point*/ ctx[47].timelineId + "")) set_data_dev(t4, t4_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$e.name,
    		type: "each",
    		source: "(310:8) {#each $mergedTimeline as point}",
    		ctx
    	});

    	return block;
    }

    // (339:6) {#if sequence.length > 0}
    function create_if_block_3(ctx) {
    	let div;
    	let p;
    	let t0;
    	let t1_value = /*sequence*/ ctx[0].join(', ') + "";
    	let t1;

    	const block = {
    		c: function create() {
    			div = element("div");
    			p = element("p");
    			t0 = text("Generated Sequence: ");
    			t1 = text(t1_value);
    			add_location(p, file$l, 340, 10, 12886);
    			add_location(div, file$l, 339, 8, 12869);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, p);
    			append_dev(p, t0);
    			append_dev(p, t1);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*sequence*/ 1 && t1_value !== (t1_value = /*sequence*/ ctx[0].join(', ') + "")) set_data_dev(t1, t1_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_3.name,
    		type: "if",
    		source: "(339:6) {#if sequence.length > 0}",
    		ctx
    	});

    	return block;
    }

    // (329:4) {#if isTwoColumnLayout}
    function create_if_block_2$1(ctx) {
    	let div2;
    	let div0;
    	let p0;
    	let t0;
    	let t1_value = /*playerSequence*/ ctx[1].join(', ') + "";
    	let t1;
    	let t2;
    	let div1;
    	let p1;
    	let t3;
    	let t4_value = /*enemySequence*/ ctx[2].join(', ') + "";
    	let t4;

    	const block = {
    		c: function create() {
    			div2 = element("div");
    			div0 = element("div");
    			p0 = element("p");
    			t0 = text("Player Sequence: ");
    			t1 = text(t1_value);
    			t2 = space();
    			div1 = element("div");
    			p1 = element("p");
    			t3 = text("Enemy Sequence: ");
    			t4 = text(t4_value);
    			add_location(p0, file$l, 331, 10, 12623);
    			set_style(div0, "flex", "1");
    			add_location(div0, file$l, 330, 8, 12589);
    			add_location(p1, file$l, 334, 10, 12734);
    			set_style(div1, "flex", "1");
    			add_location(div1, file$l, 333, 8, 12700);
    			set_style(div2, "display", "flex");
    			add_location(div2, file$l, 329, 6, 12551);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div2, anchor);
    			append_dev(div2, div0);
    			append_dev(div0, p0);
    			append_dev(p0, t0);
    			append_dev(p0, t1);
    			append_dev(div2, t2);
    			append_dev(div2, div1);
    			append_dev(div1, p1);
    			append_dev(p1, t3);
    			append_dev(p1, t4);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*playerSequence*/ 2 && t1_value !== (t1_value = /*playerSequence*/ ctx[1].join(', ') + "")) set_data_dev(t1, t1_value);
    			if (dirty[0] & /*enemySequence*/ 4 && t4_value !== (t4_value = /*enemySequence*/ ctx[2].join(', ') + "")) set_data_dev(t4, t4_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div2);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_2$1.name,
    		type: "if",
    		source: "(329:4) {#if isTwoColumnLayout}",
    		ctx
    	});

    	return block;
    }

    // (346:4) {#if sequence.length > 0}
    function create_if_block_1$4(ctx) {
    	let div;
    	let button0;
    	let t1;
    	let button1;
    	let t3;
    	let button2;
    	let t5;
    	let button3;
    	let mounted;
    	let dispose;

    	const block = {
    		c: function create() {
    			div = element("div");
    			button0 = element("button");
    			button0.textContent = "Copy 5 Items";
    			t1 = space();
    			button1 = element("button");
    			button1.textContent = "Copy 10 Items";
    			t3 = space();
    			button2 = element("button");
    			button2.textContent = "Copy 30 Items";
    			t5 = space();
    			button3 = element("button");
    			button3.textContent = "Copy All Events";
    			add_location(button0, file$l, 347, 8, 13032);
    			add_location(button1, file$l, 348, 8, 13107);
    			add_location(button2, file$l, 349, 8, 13184);
    			add_location(button3, file$l, 350, 8, 13261);
    			add_location(div, file$l, 346, 6, 13017);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, button0);
    			append_dev(div, t1);
    			append_dev(div, button1);
    			append_dev(div, t3);
    			append_dev(div, button2);
    			append_dev(div, t5);
    			append_dev(div, button3);

    			if (!mounted) {
    				dispose = [
    					listen_dev(button0, "click", /*click_handler_1*/ ctx[25], false, false, false, false),
    					listen_dev(button1, "click", /*click_handler_2*/ ctx[26], false, false, false, false),
    					listen_dev(button2, "click", /*click_handler_3*/ ctx[27], false, false, false, false),
    					listen_dev(button3, "click", /*click_handler_4*/ ctx[28], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_1$4.name,
    		type: "if",
    		source: "(346:4) {#if sequence.length > 0}",
    		ctx
    	});

    	return block;
    }

    // (355:4) {#if jsonScaffold}
    function create_if_block$b(ctx) {
    	let div;
    	let button;
    	let t1;
    	let pre;
    	let t2;
    	let t3_value = JSON.stringify(/*jsonScaffold*/ ctx[4], null, 2) + "";
    	let t3;
    	let t4;
    	let mounted;
    	let dispose;

    	const block = {
    		c: function create() {
    			div = element("div");
    			button = element("button");
    			button.textContent = "Copy editable fields for llm";
    			t1 = space();
    			pre = element("pre");
    			t2 = text("          ");
    			t3 = text(t3_value);
    			t4 = text("\r\n        ");
    			add_location(button, file$l, 356, 8, 13438);
    			add_location(pre, file$l, 358, 8, 13549);
    			attr_dev(div, "class", "scrollable svelte-1d8ch82");
    			add_location(div, file$l, 355, 6, 13404);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, button);
    			append_dev(div, t1);
    			append_dev(div, pre);
    			append_dev(pre, t2);
    			append_dev(pre, t3);
    			append_dev(pre, t4);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", /*click_handler_5*/ ctx[29], false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*jsonScaffold*/ 16 && t3_value !== (t3_value = JSON.stringify(/*jsonScaffold*/ ctx[4], null, 2) + "")) set_data_dev(t3, t3_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$b.name,
    		type: "if",
    		source: "(355:4) {#if jsonScaffold}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$l(ctx) {
    	let div0;
    	let h2;
    	let t1;
    	let label0;
    	let t3;
    	let input0;
    	let t4;
    	let button0;
    	let t6;
    	let label1;
    	let t8;
    	let input1;
    	let t9;
    	let t10;
    	let hr0;
    	let hr1;
    	let t11;
    	let h1;
    	let t13;
    	let div1;
    	let button1;
    	let t15;
    	let button2;
    	let t16;
    	let button2_disabled_value;
    	let t17;
    	let button3;
    	let t19;
    	let button4;
    	let t21;
    	let t22;
    	let t23;
    	let mounted;
    	let dispose;
    	let if_block0 = /*$timelines*/ ctx[5].length > 0 && create_if_block_4(ctx);

    	function select_block_type(ctx, dirty) {
    		if (/*isTwoColumnLayout*/ ctx[3]) return create_if_block_2$1;
    		if (/*sequence*/ ctx[0].length > 0) return create_if_block_3;
    	}

    	let current_block_type = select_block_type(ctx);
    	let if_block1 = current_block_type && current_block_type(ctx);
    	let if_block2 = /*sequence*/ ctx[0].length > 0 && create_if_block_1$4(ctx);
    	let if_block3 = /*jsonScaffold*/ ctx[4] && create_if_block$b(ctx);

    	const block = {
    		c: function create() {
    			div0 = element("div");
    			h2 = element("h2");
    			h2.textContent = "Timeline Generator (esp backstories)";
    			t1 = space();
    			label0 = element("label");
    			label0.textContent = "Number of Timelines:";
    			t3 = space();
    			input0 = element("input");
    			t4 = space();
    			button0 = element("button");
    			button0.textContent = "Create Timelines";
    			t6 = space();
    			label1 = element("label");
    			label1.textContent = "Number of Events per Timeline:";
    			t8 = space();
    			input1 = element("input");
    			t9 = space();
    			if (if_block0) if_block0.c();
    			t10 = space();
    			hr0 = element("hr");
    			hr1 = element("hr");
    			t11 = space();
    			h1 = element("h1");
    			h1.textContent = "Sequence and psuedo json scaffold generator";
    			t13 = space();
    			div1 = element("div");
    			button1 = element("button");
    			button1.textContent = "Generate New Sequence";
    			t15 = space();
    			button2 = element("button");
    			t16 = text("Generate Follow-Up Sequence");
    			t17 = space();
    			button3 = element("button");
    			button3.textContent = "Generate Main Enemy (solo protagonist) based Sequence";
    			t19 = space();
    			button4 = element("button");
    			button4.textContent = "Generate JSON Scaffold";
    			t21 = space();
    			if (if_block1) if_block1.c();
    			t22 = space();
    			if (if_block2) if_block2.c();
    			t23 = space();
    			if (if_block3) if_block3.c();
    			add_location(h2, file$l, 283, 4, 10882);
    			attr_dev(label0, "for", "numTimelines");
    			add_location(label0, file$l, 285, 4, 10937);
    			attr_dev(input0, "type", "number");
    			attr_dev(input0, "id", "numTimelines");
    			attr_dev(input0, "min", "1");
    			add_location(input0, file$l, 286, 4, 10997);
    			add_location(button0, file$l, 287, 4, 11077);
    			attr_dev(label1, "for", "numEvents");
    			add_location(label1, file$l, 289, 4, 11147);
    			attr_dev(input1, "type", "number");
    			attr_dev(input1, "id", "numEvents");
    			attr_dev(input1, "min", "1");
    			add_location(input1, file$l, 290, 4, 11214);
    			add_location(div0, file$l, 282, 2, 10871);
    			add_location(hr0, file$l, 318, 2, 12048);
    			add_location(hr1, file$l, 318, 6, 12052);
    			add_location(h1, file$l, 320, 2, 12064);
    			add_location(button1, file$l, 323, 4, 12135);
    			button2.disabled = button2_disabled_value = /*sequence*/ ctx[0].length === 0;
    			add_location(button2, file$l, 324, 4, 12207);
    			add_location(button3, file$l, 325, 4, 12326);
    			add_location(button4, file$l, 326, 4, 12439);
    			add_location(div1, file$l, 322, 2, 12124);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div0, anchor);
    			append_dev(div0, h2);
    			append_dev(div0, t1);
    			append_dev(div0, label0);
    			append_dev(div0, t3);
    			append_dev(div0, input0);
    			set_input_value(input0, /*$numTimelines*/ ctx[7]);
    			append_dev(div0, t4);
    			append_dev(div0, button0);
    			append_dev(div0, t6);
    			append_dev(div0, label1);
    			append_dev(div0, t8);
    			append_dev(div0, input1);
    			set_input_value(input1, /*$numEvents*/ ctx[6]);
    			append_dev(div0, t9);
    			if (if_block0) if_block0.m(div0, null);
    			insert_dev(target, t10, anchor);
    			insert_dev(target, hr0, anchor);
    			insert_dev(target, hr1, anchor);
    			insert_dev(target, t11, anchor);
    			insert_dev(target, h1, anchor);
    			insert_dev(target, t13, anchor);
    			insert_dev(target, div1, anchor);
    			append_dev(div1, button1);
    			append_dev(div1, t15);
    			append_dev(div1, button2);
    			append_dev(button2, t16);
    			append_dev(div1, t17);
    			append_dev(div1, button3);
    			append_dev(div1, t19);
    			append_dev(div1, button4);
    			append_dev(div1, t21);
    			if (if_block1) if_block1.m(div1, null);
    			append_dev(div1, t22);
    			if (if_block2) if_block2.m(div1, null);
    			append_dev(div1, t23);
    			if (if_block3) if_block3.m(div1, null);

    			if (!mounted) {
    				dispose = [
    					listen_dev(input0, "input", /*input0_input_handler*/ ctx[22]),
    					listen_dev(button0, "click", /*createTimelines*/ ctx[13], false, false, false, false),
    					listen_dev(input1, "input", /*input1_input_handler*/ ctx[23]),
    					listen_dev(button1, "click", /*generateSequence*/ ctx[16], false, false, false, false),
    					listen_dev(button2, "click", /*generateFollowUpSequence*/ ctx[17], false, false, false, false),
    					listen_dev(button3, "click", /*generateMainEnemySequence*/ ctx[18], false, false, false, false),
    					listen_dev(button4, "click", /*generateJSONScaffold*/ ctx[20], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*$numTimelines*/ 128 && to_number(input0.value) !== /*$numTimelines*/ ctx[7]) {
    				set_input_value(input0, /*$numTimelines*/ ctx[7]);
    			}

    			if (dirty[0] & /*$numEvents*/ 64 && to_number(input1.value) !== /*$numEvents*/ ctx[6]) {
    				set_input_value(input1, /*$numEvents*/ ctx[6]);
    			}

    			if (/*$timelines*/ ctx[5].length > 0) {
    				if (if_block0) {
    					if_block0.p(ctx, dirty);
    				} else {
    					if_block0 = create_if_block_4(ctx);
    					if_block0.c();
    					if_block0.m(div0, null);
    				}
    			} else if (if_block0) {
    				if_block0.d(1);
    				if_block0 = null;
    			}

    			if (dirty[0] & /*sequence*/ 1 && button2_disabled_value !== (button2_disabled_value = /*sequence*/ ctx[0].length === 0)) {
    				prop_dev(button2, "disabled", button2_disabled_value);
    			}

    			if (current_block_type === (current_block_type = select_block_type(ctx)) && if_block1) {
    				if_block1.p(ctx, dirty);
    			} else {
    				if (if_block1) if_block1.d(1);
    				if_block1 = current_block_type && current_block_type(ctx);

    				if (if_block1) {
    					if_block1.c();
    					if_block1.m(div1, t22);
    				}
    			}

    			if (/*sequence*/ ctx[0].length > 0) {
    				if (if_block2) {
    					if_block2.p(ctx, dirty);
    				} else {
    					if_block2 = create_if_block_1$4(ctx);
    					if_block2.c();
    					if_block2.m(div1, t23);
    				}
    			} else if (if_block2) {
    				if_block2.d(1);
    				if_block2 = null;
    			}

    			if (/*jsonScaffold*/ ctx[4]) {
    				if (if_block3) {
    					if_block3.p(ctx, dirty);
    				} else {
    					if_block3 = create_if_block$b(ctx);
    					if_block3.c();
    					if_block3.m(div1, null);
    				}
    			} else if (if_block3) {
    				if_block3.d(1);
    				if_block3 = null;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div0);
    			if (if_block0) if_block0.d();
    			if (detaching) detach_dev(t10);
    			if (detaching) detach_dev(hr0);
    			if (detaching) detach_dev(hr1);
    			if (detaching) detach_dev(t11);
    			if (detaching) detach_dev(h1);
    			if (detaching) detach_dev(t13);
    			if (detaching) detach_dev(div1);

    			if (if_block1) {
    				if_block1.d();
    			}

    			if (if_block2) if_block2.d();
    			if (if_block3) if_block3.d();
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$l.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function getKeysFromJSON$2(json, filter) {
    	const filteredKeys = [];
    	const remainingKeys = [];

    	function traverseObject(obj, parentKey = '') {
    		for (const key in obj) {
    			if (obj.hasOwnProperty(key)) {
    				const fullKey = parentKey ? `${parentKey}.${key}` : key;

    				if (typeof filter === 'function' && filter(fullKey)) {
    					filteredKeys.push(fullKey);
    				} else {
    					remainingKeys.push(fullKey);
    				}

    				if (typeof obj[key] === 'object' && obj[key] !== null) {
    					traverseObject(obj[key], fullKey);
    				}
    			}
    		}
    	}

    	traverseObject(json);
    	return { filteredKeys, remainingKeys };
    }

    function instance$l($$self, $$props, $$invalidate) {
    	let $timelines;
    	let $numEvents;
    	let $numTimelines;
    	let $mergedTimeline;
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('BrainstormStateTransitionsRandom', slots, []);
    	let numTimelines = writable(2); // Default to 2 timelines
    	validate_store(numTimelines, 'numTimelines');
    	component_subscribe($$self, numTimelines, value => $$invalidate(7, $numTimelines = value));
    	let timelines = writable([]);
    	validate_store(timelines, 'timelines');
    	component_subscribe($$self, timelines, value => $$invalidate(5, $timelines = value));
    	let mergedTimeline = writable([]);
    	validate_store(mergedTimeline, 'mergedTimeline');
    	component_subscribe($$self, mergedTimeline, value => $$invalidate(8, $mergedTimeline = value));
    	let numEvents = writable(3); // Default to 3 events per timeline
    	validate_store(numEvents, 'numEvents');
    	component_subscribe($$self, numEvents, value => $$invalidate(6, $numEvents = value));
    	let sequence = [];
    	let playerSequence = [];
    	let enemySequence = [];
    	let isTwoColumnLayout = false;
    	let jsonScaffold;

    	// Predefined events lists
    	const characterEvents = [
    		'exploreLocation',
    		'discoverClue',
    		'meetCharacter',
    		'solveRiddle',
    		'findItem',
    		'faceChallenge',
    		'makeDecision',
    		'engageBattle',
    		'unlockAbility',
    		'learnSecret',
    		'completeMission',
    		'experienceSetback',
    		'earnReward',
    		'uncoverMystery',
    		'formAlliance',
    		'faceBetrayal',
    		'confrontNemesis',
    		'makeDiscovery',
    		'overcomeLoss',
    		'achieveVictory'
    	];

    	const itemEvents = [
    		'findItem',
    		'inspectItem',
    		'repairItem',
    		'upgradeItem',
    		'useItem',
    		'loseItem',
    		'tradeItem',
    		'giftItem',
    		'stealItem',
    		'duplicateItem',
    		'enchantItem',
    		'destroyItem',
    		'sellItem',
    		'buyItem',
    		'combineItems',
    		'identifyItem',
    		'storeItem',
    		'retrieveItem',
    		'hideItem',
    		'revealItem',
    		'consumeItem',
    		'studyItem',
    		'activateItem',
    		'deactivateItem',
    		'analyzeItem'
    	];

    	const environmentEvents = [
    		'changeWeather',
    		'triggerEarthquake',
    		'causeFlood',
    		'startFire',
    		'spawnMonster',
    		'discoverHiddenPath',
    		'openPortal',
    		'closePortal',
    		'createObstacle',
    		'removeObstacle',
    		'alterTerrain',
    		'revealSecretArea',
    		'startStorm',
    		'endStorm',
    		'activateTrap',
    		'deactivateTrap',
    		'spawnTreasure',
    		'shiftLandscape',
    		'changeSeason',
    		'dayToNight',
    		'nightToDay',
    		'polluteArea',
    		'purifyArea',
    		'collapseStructure',
    		'repairStructure'
    	];

    	const statsEvents = [
    		'increaseHealth',
    		'decreaseHealth',
    		'gainExperience',
    		'loseExperience',
    		'boostStrength',
    		'reduceStrength',
    		'improveAgility',
    		'diminishAgility',
    		'raiseIntelligence',
    		'lowerIntelligence',
    		'enhanceStamina',
    		'drainStamina',
    		'amplifyLuck',
    		'weakenLuck',
    		'upgradeSkill',
    		'downgradeSkill',
    		'gainLevel',
    		'loseLevel',
    		'increaseDefense',
    		'decreaseDefense',
    		'improveCharisma',
    		'reduceCharisma',
    		'boostMana',
    		'drainMana',
    		'increaseSpeed'
    	];

    	// Follow-up events
    	let followUpEvents = {
    		'meetCharacter': [
    			'interactWithCharacterAgain',
    			'receiveHelpFrommetCharacter',
    			'charactermetBetraysProtagonist'
    		],
    		'discoverClue': [
    			'followUpOnpreviousClue',
    			'previousclueLeadsToDeadEnd',
    			'previousclueUnlocksNewPath'
    		],
    		'faceChallenge': [
    			'overcomepreviousChallengeWithNewApproach',
    			'failpreviousChallengeWithConsequences',
    			'discoverHiddenOpportunityInpreviousChallenge'
    		],
    		'engageBattle': [
    			'emergeFrompreviousBattleVictorious',
    			'sufferDefeatInpreviousBattle',
    			'forgeUnlikelyAlliancefrompreviousBattle',
    			'negativesideeffectofpreviousbattle'
    		]
    	};

    	// Data for JSON scaffold
    	let background = '/AutoGameBackgrounds/theme_background.png';

    	let inventory = [
    		{
    			type: "weapon",
    			name: "Random weapon",
    			description: "A powerful weapon."
    		}
    	];

    	let skills = [
    		{
    			branch: "Skill Group 1",
    			name: "Skill One",
    			learned: false
    		}
    	];

    	let persistentTargets = [
    		{
    			name: "Background Target 1",
    			x: 500,
    			y: 500,
    			collisionType: "alert",
    			collisiontext: "First Test"
    		}
    	];

    	let story = [
    		{
    			part: 0,
    			objectives: [
    				{
    					id: 1,
    					name: "Mission Details",
    					complete: false,
    					progress: 0,
    					inventoryRequired: []
    				}
    			],
    			targets: [
    				{
    					name: "Target 1",
    					x: 150,
    					y: 150,
    					collisionType: "alert",
    					collisiontext: "First Test"
    				}
    			]
    		}
    	];

    	let actions = {
    		Buybook() {
    			
    		}, // Logic to buy the book
    		// Logic to buy the book
    		
    	};

    	let stateobjects = {};

    	// Function to create timelines
    	function createTimelines() {
    		const newTimelines = [];

    		for (let i = 1; i <= $numTimelines; i++) {
    			newTimelines.push({ id: i, points: [] });
    		}

    		timelines.set(newTimelines);
    	}

    	// Function to generate random points for a timeline
    	function generateRandomPoints(timelineId) {
    		const allEvents = [...characterEvents, ...itemEvents, ...environmentEvents, ...statsEvents];

    		const updatedTimelines = $timelines.map(timeline => {
    			if (timeline.id === timelineId) {
    				const points = [];

    				for (let i = 0; i < $numEvents; i++) {
    					let year = Math.floor(Math.random() * (2023 - 1900 + 1)) + 1900;
    					let event = allEvents[Math.floor(Math.random() * allEvents.length)];
    					let description = `Timeline ${timelineId}, Event ${i + 1}: ${event}`;
    					points.push({ year, description, timelineId });
    				}

    				return { ...timeline, points };
    			}

    			return timeline;
    		});

    		timelines.set(updatedTimelines);
    	}

    	// Function to merge timelines
    	function mergeTimelines() {
    		const allPoints = $timelines.flatMap(timeline => timeline.points);
    		allPoints.sort((a, b) => a.year - b.year);
    		mergedTimeline.set(allPoints);
    	}

    	// Function to generate a sequence of events
    	function generateSequence() {
    		$$invalidate(0, sequence = []);

    		for (let i = 0; i < 30; i++) {
    			const randomIndex = Math.floor(Math.random() * characterEvents.length);
    			sequence.push(characterEvents[randomIndex]);
    		}

    		$$invalidate(1, playerSequence = [...sequence]);
    		$$invalidate(3, isTwoColumnLayout = false);
    	}

    	// Function to generate a follow-up sequence of events
    	function generateFollowUpSequence() {
    		const extendedSequence = [...sequence];

    		for (let i = 0; i < sequence.length; i++) {
    			const currentEvent = sequence[i];

    			if (followUpEvents[currentEvent]) {
    				const followUpIndex = Math.floor(Math.random() * followUpEvents[currentEvent].length);
    				const followUpEvent = followUpEvents[currentEvent][followUpIndex];
    				extendedSequence.push(followUpEvent);
    			}
    		}

    		$$invalidate(0, sequence = extendedSequence);
    		$$invalidate(1, playerSequence = [...sequence]);
    		$$invalidate(3, isTwoColumnLayout = false);
    	}

    	// Function to generate a main enemy sequence
    	function generateMainEnemySequence() {
    		const subordinateSequences = [];
    		const subordinateCount = Math.floor(Math.random() * 5) + 1;

    		// Generate main enemy events
    		for (let i = 0; i < 10; i++) {
    			const randomIndex = Math.floor(Math.random() * characterEvents.length);
    			enemySequence.push(`mainEnemy${characterEvents[randomIndex]}`);
    		}

    		// Generate subordinate events
    		for (let i = 0; i < subordinateCount; i++) {
    			const subordinateSequence = [];

    			for (let j = 0; j < 5; j++) {
    				const randomIndex = Math.floor(Math.random() * characterEvents.length);
    				subordinateSequence.push(`enemysubordinate${i + 1}${characterEvents[randomIndex]}`);
    			}

    			subordinateSequences.push(subordinateSequence);
    		}

    		// Randomize the order of player, main enemy, and subordinate events
    		const combinedSequence = [...playerSequence, ...enemySequence, ...subordinateSequences.flat()];

    		for (let i = combinedSequence.length - 1; i > 0; i--) {
    			const j = Math.floor(Math.random() * (i + 1));
    			[combinedSequence[i], combinedSequence[j]] = [combinedSequence[j], combinedSequence[i]];
    		}

    		$$invalidate(2, enemySequence = combinedSequence);
    		$$invalidate(3, isTwoColumnLayout = true);
    	}

    	// Function to copy a certain number of items to clipboard
    	function copyToClipboard(count) {
    		const selectedItems = sequence.slice(0, count);
    		const textToCopy = 'Write a story in this order - ' + selectedItems.join(', ');
    		navigator.clipboard.writeText(textToCopy);
    		alert(`Copied ${count} items to clipboard!`);
    	}

    	// Function to generate the JSON scaffold
    	function generateJSONScaffold() {
    		$$invalidate(4, jsonScaffold = {
    			//const
    			'User Custom': {
    				background,
    				inventory,
    				skills,
    				persistentTargets,
    				story: sequence.map((event, index) => ({
    					part: index,
    					objectives: [
    						{
    							id: index + 1,
    							name: `Objective for ${event}`,
    							complete: false,
    							progress: 0,
    							inventoryRequired: []
    						}
    					],
    					targets: [
    						{
    							name: `Target for ${event}`,
    							x: 100 * (index + 1),
    							y: 100 * (index + 1),
    							collisionType: "alert",
    							collisiontext: `Target for ${event}`
    						}
    					]
    				})),
    				actions,
    				stateobjects
    			}
    		});

    		console.log(JSON.stringify(jsonScaffold, null, 2));
    	}

    	// Create initial timelines on mount
    	onMount(() => {
    		createTimelines();
    	});

    	let json = {};
    	let filteredKeys = [];
    	let remainingKeys = [];
    	let llmresponseformat = '{"story" : [{},{},... ]';

    	function extractKeys() {
    		try {
    			//json = JSON.parse(jsonInput);
    			json = jsonScaffold; //randomContentStructureSubtargets

    			const { filteredKeys: filtered, remainingKeys: remaining } = getKeysFromJSON$2(json, key => {
    				return key.includes('name') || key.includes('collisiontext'); //|| modal fields;
    			}); //return key.endsWith('.x') || key.endsWith('.y') || key.includes('Type') || key.includes('complete');

    			filteredKeys = filtered;
    			remainingKeys = remaining;
    		} catch(error) {
    			console.error('Invalid JSON:', error);
    			filteredKeys = [];
    			remainingKeys = [];
    		}
    	}

    	function copyextractedkeysToClipboard(count) {
    		extractKeys();
    		navigator.clipboard.writeText(filteredKeys);
    		alert(`Copied ${count} items to clipboard!`);
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$a.warn(`<BrainstormStateTransitionsRandom> was created with unknown prop '${key}'`);
    	});

    	function input0_input_handler() {
    		$numTimelines = to_number(this.value);
    		numTimelines.set($numTimelines);
    	}

    	function input1_input_handler() {
    		$numEvents = to_number(this.value);
    		numEvents.set($numEvents);
    	}

    	const click_handler = timeline => generateRandomPoints(timeline.id);
    	const click_handler_1 = () => copyToClipboard(5);
    	const click_handler_2 = () => copyToClipboard(10);
    	const click_handler_3 = () => copyToClipboard(30);
    	const click_handler_4 = () => copyToClipboard(sequence.length);
    	const click_handler_5 = () => copyextractedkeysToClipboard();

    	$$self.$capture_state = () => ({
    		writable,
    		onMount,
    		numTimelines,
    		timelines,
    		mergedTimeline,
    		numEvents,
    		sequence,
    		playerSequence,
    		enemySequence,
    		isTwoColumnLayout,
    		jsonScaffold,
    		characterEvents,
    		itemEvents,
    		environmentEvents,
    		statsEvents,
    		followUpEvents,
    		background,
    		inventory,
    		skills,
    		persistentTargets,
    		story,
    		actions,
    		stateobjects,
    		createTimelines,
    		generateRandomPoints,
    		mergeTimelines,
    		generateSequence,
    		generateFollowUpSequence,
    		generateMainEnemySequence,
    		copyToClipboard,
    		generateJSONScaffold,
    		json,
    		filteredKeys,
    		remainingKeys,
    		llmresponseformat,
    		getKeysFromJSON: getKeysFromJSON$2,
    		extractKeys,
    		copyextractedkeysToClipboard,
    		$timelines,
    		$numEvents,
    		$numTimelines,
    		$mergedTimeline
    	});

    	$$self.$inject_state = $$props => {
    		if ('numTimelines' in $$props) $$invalidate(9, numTimelines = $$props.numTimelines);
    		if ('timelines' in $$props) $$invalidate(10, timelines = $$props.timelines);
    		if ('mergedTimeline' in $$props) $$invalidate(11, mergedTimeline = $$props.mergedTimeline);
    		if ('numEvents' in $$props) $$invalidate(12, numEvents = $$props.numEvents);
    		if ('sequence' in $$props) $$invalidate(0, sequence = $$props.sequence);
    		if ('playerSequence' in $$props) $$invalidate(1, playerSequence = $$props.playerSequence);
    		if ('enemySequence' in $$props) $$invalidate(2, enemySequence = $$props.enemySequence);
    		if ('isTwoColumnLayout' in $$props) $$invalidate(3, isTwoColumnLayout = $$props.isTwoColumnLayout);
    		if ('jsonScaffold' in $$props) $$invalidate(4, jsonScaffold = $$props.jsonScaffold);
    		if ('followUpEvents' in $$props) followUpEvents = $$props.followUpEvents;
    		if ('background' in $$props) background = $$props.background;
    		if ('inventory' in $$props) inventory = $$props.inventory;
    		if ('skills' in $$props) skills = $$props.skills;
    		if ('persistentTargets' in $$props) persistentTargets = $$props.persistentTargets;
    		if ('story' in $$props) story = $$props.story;
    		if ('actions' in $$props) actions = $$props.actions;
    		if ('stateobjects' in $$props) stateobjects = $$props.stateobjects;
    		if ('json' in $$props) json = $$props.json;
    		if ('filteredKeys' in $$props) filteredKeys = $$props.filteredKeys;
    		if ('remainingKeys' in $$props) remainingKeys = $$props.remainingKeys;
    		if ('llmresponseformat' in $$props) llmresponseformat = $$props.llmresponseformat;
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		sequence,
    		playerSequence,
    		enemySequence,
    		isTwoColumnLayout,
    		jsonScaffold,
    		$timelines,
    		$numEvents,
    		$numTimelines,
    		$mergedTimeline,
    		numTimelines,
    		timelines,
    		mergedTimeline,
    		numEvents,
    		createTimelines,
    		generateRandomPoints,
    		mergeTimelines,
    		generateSequence,
    		generateFollowUpSequence,
    		generateMainEnemySequence,
    		copyToClipboard,
    		generateJSONScaffold,
    		copyextractedkeysToClipboard,
    		input0_input_handler,
    		input1_input_handler,
    		click_handler,
    		click_handler_1,
    		click_handler_2,
    		click_handler_3,
    		click_handler_4,
    		click_handler_5
    	];
    }

    class BrainstormStateTransitionsRandom extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$l, create_fragment$l, safe_not_equal, {}, null, [-1, -1]);

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "BrainstormStateTransitionsRandom",
    			options,
    			id: create_fragment$l.name
    		});
    	}
    }

    /* src\testbrainstorminstantpopulate.svelte generated by Svelte v3.59.2 */

    const { console: console_1$9 } = globals;
    const file$k = "src\\testbrainstorminstantpopulate.svelte";

    function get_each_context$d(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[6] = list[i];
    	return child_ctx;
    }

    function get_each_context_1$6(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[6] = list[i];
    	return child_ctx;
    }

    // (70:12) {#each filteredKeys as key}
    function create_each_block_1$6(ctx) {
    	let li;
    	let t_value = /*key*/ ctx[6] + "";
    	let t;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t = text(t_value);
    			add_location(li, file$k, 70, 14, 2213);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*filteredKeys*/ 2 && t_value !== (t_value = /*key*/ ctx[6] + "")) set_data_dev(t, t_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$6.name,
    		type: "each",
    		source: "(70:12) {#each filteredKeys as key}",
    		ctx
    	});

    	return block;
    }

    // (79:12) {#each remainingKeys as key}
    function create_each_block$d(ctx) {
    	let li;
    	let t_value = /*key*/ ctx[6] + "";
    	let t;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t = text(t_value);
    			add_location(li, file$k, 79, 14, 2410);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*remainingKeys*/ 4 && t_value !== (t_value = /*key*/ ctx[6] + "")) set_data_dev(t, t_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$d.name,
    		type: "each",
    		source: "(79:12) {#each remainingKeys as key}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$k(ctx) {
    	let main;
    	let h1;
    	let t1;
    	let div4;
    	let div0;
    	let label;
    	let t3;
    	let textarea;
    	let t4;
    	let button;
    	let t6;
    	let div3;
    	let div1;
    	let h20;
    	let t8;
    	let ul0;
    	let t9;
    	let div2;
    	let h21;
    	let t11;
    	let ul1;
    	let mounted;
    	let dispose;
    	let each_value_1 = /*filteredKeys*/ ctx[1];
    	validate_each_argument(each_value_1);
    	let each_blocks_1 = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks_1[i] = create_each_block_1$6(get_each_context_1$6(ctx, each_value_1, i));
    	}

    	let each_value = /*remainingKeys*/ ctx[2];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$d(get_each_context$d(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			main = element("main");
    			h1 = element("h1");
    			h1.textContent = "JSON Key Extractor";
    			t1 = space();
    			div4 = element("div");
    			div0 = element("div");
    			label = element("label");
    			label.textContent = "Enter JSON:";
    			t3 = space();
    			textarea = element("textarea");
    			t4 = space();
    			button = element("button");
    			button.textContent = "Extract Keys";
    			t6 = space();
    			div3 = element("div");
    			div1 = element("div");
    			h20 = element("h2");
    			h20.textContent = "Filtered Keys:";
    			t8 = space();
    			ul0 = element("ul");

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				each_blocks_1[i].c();
    			}

    			t9 = space();
    			div2 = element("div");
    			h21 = element("h2");
    			h21.textContent = "Remaining Keys:";
    			t11 = space();
    			ul1 = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h1, file$k, 56, 4, 1730);
    			attr_dev(label, "for", "jsonInput");
    			add_location(label, file$k, 60, 8, 1834);
    			attr_dev(textarea, "id", "jsonInput");
    			attr_dev(textarea, "class", "svelte-1t47hvo");
    			add_location(textarea, file$k, 61, 8, 1886);
    			add_location(button, file$k, 62, 8, 1985);
    			attr_dev(div0, "class", "input-column svelte-1t47hvo");
    			add_location(div0, file$k, 59, 6, 1798);
    			add_location(h20, file$k, 67, 10, 2117);
    			add_location(ul0, file$k, 68, 10, 2152);
    			add_location(div1, file$k, 66, 8, 2100);
    			add_location(h21, file$k, 76, 10, 2312);
    			add_location(ul1, file$k, 77, 10, 2348);
    			add_location(div2, file$k, 75, 8, 2295);
    			attr_dev(div3, "class", "output-column svelte-1t47hvo");
    			add_location(div3, file$k, 65, 6, 2063);
    			attr_dev(div4, "class", "container svelte-1t47hvo");
    			add_location(div4, file$k, 58, 4, 1767);
    			add_location(main, file$k, 55, 2, 1718);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, main, anchor);
    			append_dev(main, h1);
    			append_dev(main, t1);
    			append_dev(main, div4);
    			append_dev(div4, div0);
    			append_dev(div0, label);
    			append_dev(div0, t3);
    			append_dev(div0, textarea);
    			set_input_value(textarea, /*jsonInput*/ ctx[0]);
    			append_dev(div0, t4);
    			append_dev(div0, button);
    			append_dev(div4, t6);
    			append_dev(div4, div3);
    			append_dev(div3, div1);
    			append_dev(div1, h20);
    			append_dev(div1, t8);
    			append_dev(div1, ul0);

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				if (each_blocks_1[i]) {
    					each_blocks_1[i].m(ul0, null);
    				}
    			}

    			append_dev(div3, t9);
    			append_dev(div3, div2);
    			append_dev(div2, h21);
    			append_dev(div2, t11);
    			append_dev(div2, ul1);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul1, null);
    				}
    			}

    			if (!mounted) {
    				dispose = [
    					listen_dev(textarea, "input", /*textarea_input_handler*/ ctx[4]),
    					listen_dev(textarea, "input", autoExpandTextarea$2, false, false, false, false),
    					listen_dev(button, "click", /*extractKeys*/ ctx[3], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*jsonInput*/ 1) {
    				set_input_value(textarea, /*jsonInput*/ ctx[0]);
    			}

    			if (dirty & /*filteredKeys*/ 2) {
    				each_value_1 = /*filteredKeys*/ ctx[1];
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$6(ctx, each_value_1, i);

    					if (each_blocks_1[i]) {
    						each_blocks_1[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_1[i] = create_each_block_1$6(child_ctx);
    						each_blocks_1[i].c();
    						each_blocks_1[i].m(ul0, null);
    					}
    				}

    				for (; i < each_blocks_1.length; i += 1) {
    					each_blocks_1[i].d(1);
    				}

    				each_blocks_1.length = each_value_1.length;
    			}

    			if (dirty & /*remainingKeys*/ 4) {
    				each_value = /*remainingKeys*/ ctx[2];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$d(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$d(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul1, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(main);
    			destroy_each(each_blocks_1, detaching);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$k.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function getKeysFromJSON$1(json, filter) {
    	const filteredKeys = [];
    	const remainingKeys = [];

    	function traverseObject(obj, parentKey = '') {
    		for (const key in obj) {
    			if (obj.hasOwnProperty(key)) {
    				const fullKey = parentKey ? `${parentKey}.${key}` : key;

    				if (typeof filter === 'function' && filter(fullKey)) {
    					filteredKeys.push(fullKey);
    				} else {
    					remainingKeys.push(fullKey);
    				}

    				if (typeof obj[key] === 'object' && obj[key] !== null) {
    					traverseObject(obj[key], fullKey);
    				}
    			}
    		}
    	}

    	traverseObject(json);
    	return { filteredKeys, remainingKeys };
    }

    function autoExpandTextarea$2(event) {
    	const textarea = event.target;
    	textarea.style.height = 'auto';
    	textarea.style.height = `${textarea.scrollHeight}px`;
    }

    function instance$k($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('Testbrainstorminstantpopulate', slots, []);
    	let jsonInput = '';
    	let json = {};
    	let filteredKeys = [];
    	let remainingKeys = [];

    	function extractKeys() {
    		try {
    			json = JSON.parse(jsonInput);

    			const { filteredKeys: filtered, remainingKeys: remaining } = getKeysFromJSON$1(json, key => {
    				return key.includes('name') || key.includes('collisiontext'); //|| modal fields;
    			}); //return key.endsWith('.x') || key.endsWith('.y') || key.includes('Type') || key.includes('complete');

    			$$invalidate(1, filteredKeys = filtered);
    			$$invalidate(2, remainingKeys = remaining);
    		} catch(error) {
    			console.error('Invalid JSON:', error);
    			$$invalidate(1, filteredKeys = []);
    			$$invalidate(2, remainingKeys = []);
    		}
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$9.warn(`<Testbrainstorminstantpopulate> was created with unknown prop '${key}'`);
    	});

    	function textarea_input_handler() {
    		jsonInput = this.value;
    		$$invalidate(0, jsonInput);
    	}

    	$$self.$capture_state = () => ({
    		jsonInput,
    		json,
    		filteredKeys,
    		remainingKeys,
    		getKeysFromJSON: getKeysFromJSON$1,
    		extractKeys,
    		autoExpandTextarea: autoExpandTextarea$2
    	});

    	$$self.$inject_state = $$props => {
    		if ('jsonInput' in $$props) $$invalidate(0, jsonInput = $$props.jsonInput);
    		if ('json' in $$props) json = $$props.json;
    		if ('filteredKeys' in $$props) $$invalidate(1, filteredKeys = $$props.filteredKeys);
    		if ('remainingKeys' in $$props) $$invalidate(2, remainingKeys = $$props.remainingKeys);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [jsonInput, filteredKeys, remainingKeys, extractKeys, textarea_input_handler];
    }

    class Testbrainstorminstantpopulate extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$k, create_fragment$k, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "Testbrainstorminstantpopulate",
    			options,
    			id: create_fragment$k.name
    		});
    	}
    }

    /* src\testjsonmatchingfieldmerge.svelte generated by Svelte v3.59.2 */

    const { Object: Object_1$4, console: console_1$8 } = globals;
    const file$j = "src\\testjsonmatchingfieldmerge.svelte";

    // (195:4) {#if Object.keys(mergedJson).length > 0}
    function create_if_block$a(ctx) {
    	let div;
    	let h3;
    	let t1;
    	let pre;
    	let t2_value = JSON.stringify(/*mergedJson*/ ctx[2], null, 2) + "";
    	let t2;

    	const block = {
    		c: function create() {
    			div = element("div");
    			h3 = element("h3");
    			h3.textContent = "Merged JSON:";
    			t1 = space();
    			pre = element("pre");
    			t2 = text(t2_value);
    			add_location(h3, file$j, 196, 8, 4625);
    			add_location(pre, file$j, 197, 8, 4656);
    			add_location(div, file$j, 195, 6, 4610);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, h3);
    			append_dev(div, t1);
    			append_dev(div, pre);
    			append_dev(pre, t2);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*mergedJson*/ 4 && t2_value !== (t2_value = JSON.stringify(/*mergedJson*/ ctx[2], null, 2) + "")) set_data_dev(t2, t2_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$a.name,
    		type: "if",
    		source: "(195:4) {#if Object.keys(mergedJson).length > 0}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$j(ctx) {
    	let main;
    	let h2;
    	let t1;
    	let div0;
    	let h30;
    	let t3;
    	let textarea0;
    	let t4;
    	let div1;
    	let h31;
    	let t6;
    	let textarea1;
    	let t7;
    	let button;
    	let t9;
    	let show_if = Object.keys(/*mergedJson*/ ctx[2]).length > 0;
    	let mounted;
    	let dispose;
    	let if_block = show_if && create_if_block$a(ctx);

    	const block = {
    		c: function create() {
    			main = element("main");
    			h2 = element("h2");
    			h2.textContent = "JSON Merger";
    			t1 = space();
    			div0 = element("div");
    			h30 = element("h3");
    			h30.textContent = "Original JSON:";
    			t3 = space();
    			textarea0 = element("textarea");
    			t4 = space();
    			div1 = element("div");
    			h31 = element("h3");
    			h31.textContent = "Snippet JSON:";
    			t6 = space();
    			textarea1 = element("textarea");
    			t7 = space();
    			button = element("button");
    			button.textContent = "Merge JSON";
    			t9 = space();
    			if (if_block) if_block.c();
    			add_location(h2, file$j, 180, 4, 4178);
    			add_location(h30, file$j, 183, 6, 4221);
    			attr_dev(textarea0, "class", "svelte-1jgnkl9");
    			add_location(textarea0, file$j, 184, 6, 4252);
    			add_location(div0, file$j, 182, 4, 4208);
    			add_location(h31, file$j, 188, 6, 4369);
    			attr_dev(textarea1, "class", "svelte-1jgnkl9");
    			add_location(textarea1, file$j, 189, 6, 4399);
    			add_location(div1, file$j, 187, 4, 4356);
    			add_location(button, file$j, 192, 4, 4502);
    			add_location(main, file$j, 179, 2, 4166);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, main, anchor);
    			append_dev(main, h2);
    			append_dev(main, t1);
    			append_dev(main, div0);
    			append_dev(div0, h30);
    			append_dev(div0, t3);
    			append_dev(div0, textarea0);
    			set_input_value(textarea0, /*originalJsonInput*/ ctx[0]);
    			append_dev(main, t4);
    			append_dev(main, div1);
    			append_dev(div1, h31);
    			append_dev(div1, t6);
    			append_dev(div1, textarea1);
    			set_input_value(textarea1, /*snippetJsonInput*/ ctx[1]);
    			append_dev(main, t7);
    			append_dev(main, button);
    			append_dev(main, t9);
    			if (if_block) if_block.m(main, null);

    			if (!mounted) {
    				dispose = [
    					listen_dev(textarea0, "input", /*textarea0_input_handler*/ ctx[4]),
    					listen_dev(textarea0, "input", autoExpandTextarea$1, false, false, false, false),
    					listen_dev(textarea1, "input", /*textarea1_input_handler*/ ctx[5]),
    					listen_dev(textarea1, "input", autoExpandTextarea$1, false, false, false, false),
    					listen_dev(button, "click", /*handleMerge*/ ctx[3], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*originalJsonInput*/ 1) {
    				set_input_value(textarea0, /*originalJsonInput*/ ctx[0]);
    			}

    			if (dirty & /*snippetJsonInput*/ 2) {
    				set_input_value(textarea1, /*snippetJsonInput*/ ctx[1]);
    			}

    			if (dirty & /*mergedJson*/ 4) show_if = Object.keys(/*mergedJson*/ ctx[2]).length > 0;

    			if (show_if) {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block$a(ctx);
    					if_block.c();
    					if_block.m(main, null);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(main);
    			if (if_block) if_block.d();
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$j.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function mergeJSON(original, snippet) {
    	const merged = JSON.parse(JSON.stringify(original));

    	// Update objectives
    	if (Array.isArray(snippet.story.objectives)) {
    		merged.story[0].objectives.forEach((obj, index) => {
    			if (snippet.story.objectives[index]) {
    				obj.name = snippet.story.objectives[index].name;
    			}
    		});
    	}

    	// Update targets
    	if (Array.isArray(snippet.story.targets)) {
    		merged.story[0].targets.forEach((target, index) => {
    			if (snippet.story.targets[index]) {
    				target.name = snippet.story.targets[index].name;
    				target.collisiontext = snippet.story.targets[index].collisiontext;

    				// Update subTargets recursively
    				function updateSubTargets(originalSubTargets, snippetSubTargets) {
    					originalSubTargets.forEach((subTarget, subIndex) => {
    						if (snippetSubTargets[subIndex]) {
    							subTarget.name = snippetSubTargets[subIndex].name;
    							subTarget.collisiontext = snippetSubTargets[subIndex].collisiontext;

    							if (Array.isArray(snippetSubTargets[subIndex].subTargets)) {
    								updateSubTargets(subTarget.subTargets, snippetSubTargets[subIndex].subTargets);
    							}
    						}
    					});
    				}

    				if (Array.isArray(target.subTargets) && Array.isArray(snippet.story.targets[index].subTargets)) {
    					updateSubTargets(target.subTargets, snippet.story.targets[index].subTargets);
    				}
    			}
    		});
    	}

    	return merged;
    }

    function autoExpandTextarea$1(event) {
    	const textarea = event.target;
    	textarea.style.height = 'auto';
    	textarea.style.height = `${textarea.scrollHeight}px`;
    }

    function instance$j($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('Testjsonmatchingfieldmerge', slots, []);

    	let originalJsonInput = `{
"story": [
{
"part": 0,
"objectives": [
{
"id": "Objective1_1",
"name": "Objective 1.1",
"complete": false
},
{
"id": "Objective1_2",
"name": "Objective 1.2",
"complete": false
}
],
"targets": [
{
"name": "Target0_1",
"x": 55,
"y": 4,
"collisionType": "alert",
"collisiontext": "Placeholder text for Target 0.1",
"subTargets": [
{
"name": "Target1_1",
"x": 63,
"y": 4,
"collisionType": "alert",
"collisiontext": "Placeholder text for Target 1.1",
"subTargets": [
{
"name": "Target2_1",
"x": 88,
"y": 87,
"collisionType": "alert",
"collisiontext": "Placeholder text for Target 2.1"
}
]
},
{
"name": "Target1_2",
"x": 89,
"y": 5,
"collisionType": "alert",
"collisiontext": "Placeholder text for Target 1.2",
"subTargets": [
{
"name": "Target2_1",
"x": 69,
"y": 92,
"collisionType": "alert",
"collisiontext": "Placeholder text for Target 2.1"
}
]
}
]
},
{
"name": "Target0_2",
"x": 12,
"y": 59,
"collisionType": "alert",
"collisiontext": "Placeholder text for Target 0.2"
}
]
}
]
}`;

    	let snippetJsonInput = `{
"story": {
"objectives": [
{"name": "Master the ancient magic"},
{"name": "Unite the warring clans"}
],
"targets": [
{
"name": "The ancient temple",
"collisiontext": "Enter the temple",
"subTargets": [
{
"name": "The sacred artifact",
"collisiontext": "Take the artifact",
"subTargets": [
{
"name": "The ancient scroll",
"collisiontext": "Unroll the scroll"
}
]
},
{
"name": "The hidden chamber",
"collisiontext": "Discover the chamber",
"subTargets": [
{
"name": "The ancient relic",
"collisiontext": "Claim the relic"
}
]
}
]
},
{
"name": "The dark forest",
"collisiontext": "Venture into the forest"
}
]
}
}`;

    	let originalJson = {};
    	let snippetJson = {};
    	let mergedJson = {};

    	function handleMerge() {
    		try {
    			originalJson = JSON.parse(originalJsonInput);
    			snippetJson = JSON.parse(snippetJsonInput);
    			$$invalidate(2, mergedJson = mergeJSON(originalJson, snippetJson));
    		} catch(error) {
    			console.error('Invalid JSON:', error);
    			$$invalidate(2, mergedJson = {});
    		}
    	}

    	const writable_props = [];

    	Object_1$4.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$8.warn(`<Testjsonmatchingfieldmerge> was created with unknown prop '${key}'`);
    	});

    	function textarea0_input_handler() {
    		originalJsonInput = this.value;
    		$$invalidate(0, originalJsonInput);
    	}

    	function textarea1_input_handler() {
    		snippetJsonInput = this.value;
    		$$invalidate(1, snippetJsonInput);
    	}

    	$$self.$capture_state = () => ({
    		originalJsonInput,
    		snippetJsonInput,
    		originalJson,
    		snippetJson,
    		mergedJson,
    		mergeJSON,
    		handleMerge,
    		autoExpandTextarea: autoExpandTextarea$1
    	});

    	$$self.$inject_state = $$props => {
    		if ('originalJsonInput' in $$props) $$invalidate(0, originalJsonInput = $$props.originalJsonInput);
    		if ('snippetJsonInput' in $$props) $$invalidate(1, snippetJsonInput = $$props.snippetJsonInput);
    		if ('originalJson' in $$props) originalJson = $$props.originalJson;
    		if ('snippetJson' in $$props) snippetJson = $$props.snippetJson;
    		if ('mergedJson' in $$props) $$invalidate(2, mergedJson = $$props.mergedJson);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		originalJsonInput,
    		snippetJsonInput,
    		mergedJson,
    		handleMerge,
    		textarea0_input_handler,
    		textarea1_input_handler
    	];
    }

    class Testjsonmatchingfieldmerge extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$j, create_fragment$j, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "Testjsonmatchingfieldmerge",
    			options,
    			id: create_fragment$j.name
    		});
    	}
    }

    /* src\SimpleIFrame.svelte generated by Svelte v3.59.2 */

    const file$i = "src\\SimpleIFrame.svelte";

    function get_each_context$c(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[4] = list[i];
    	return child_ctx;
    }

    // (17:6) {#each webpages as webpage}
    function create_each_block$c(ctx) {
    	let option;
    	let t_value = /*webpage*/ ctx[4].name + "";
    	let t;
    	let option_value_value;

    	const block = {
    		c: function create() {
    			option = element("option");
    			t = text(t_value);
    			option.__value = option_value_value = /*webpage*/ ctx[4].url;
    			option.value = option.__value;
    			add_location(option, file$i, 17, 8, 538);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, option, anchor);
    			append_dev(option, t);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*webpages*/ 1 && t_value !== (t_value = /*webpage*/ ctx[4].name + "")) set_data_dev(t, t_value);

    			if (dirty & /*webpages*/ 1 && option_value_value !== (option_value_value = /*webpage*/ ctx[4].url)) {
    				prop_dev(option, "__value", option_value_value);
    				option.value = option.__value;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(option);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$c.name,
    		type: "each",
    		source: "(17:6) {#each webpages as webpage}",
    		ctx
    	});

    	return block;
    }

    // (22:4) {#if selectedUrl}
    function create_if_block$9(ctx) {
    	let iframe;
    	let iframe_src_value;

    	const block = {
    		c: function create() {
    			iframe = element("iframe");
    			if (!src_url_equal(iframe.src, iframe_src_value = /*selectedUrl*/ ctx[1])) attr_dev(iframe, "src", iframe_src_value);
    			attr_dev(iframe, "title", "Webpage");
    			attr_dev(iframe, "width", "100%");
    			attr_dev(iframe, "height", "800px");
    			attr_dev(iframe, "frameborder", "0");
    			add_location(iframe, file$i, 22, 6, 662);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, iframe, anchor);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*selectedUrl, webpages*/ 3 && !src_url_equal(iframe.src, iframe_src_value = /*selectedUrl*/ ctx[1])) {
    				attr_dev(iframe, "src", iframe_src_value);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(iframe);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$9.name,
    		type: "if",
    		source: "(22:4) {#if selectedUrl}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$i(ctx) {
    	let div;
    	let select;
    	let option;
    	let t1;
    	let br;
    	let t2;
    	let mounted;
    	let dispose;
    	let each_value = /*webpages*/ ctx[0];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$c(get_each_context$c(ctx, each_value, i));
    	}

    	let if_block = /*selectedUrl*/ ctx[1] && create_if_block$9(ctx);

    	const block = {
    		c: function create() {
    			div = element("div");
    			select = element("select");
    			option = element("option");
    			option.textContent = "Select a webpage";

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t1 = space();
    			br = element("br");
    			t2 = space();
    			if (if_block) if_block.c();
    			option.__value = "";
    			option.value = option.__value;
    			add_location(option, file$i, 15, 6, 451);
    			if (/*selectedUrl*/ ctx[1] === void 0) add_render_callback(() => /*select_change_handler*/ ctx[3].call(select));
    			add_location(select, file$i, 14, 4, 385);
    			add_location(br, file$i, 20, 4, 625);
    			add_location(div, file$i, 13, 2, 374);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, select);
    			append_dev(select, option);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(select, null);
    				}
    			}

    			select_option(select, /*selectedUrl*/ ctx[1], true);
    			append_dev(div, t1);
    			append_dev(div, br);
    			append_dev(div, t2);
    			if (if_block) if_block.m(div, null);

    			if (!mounted) {
    				dispose = [
    					listen_dev(select, "change", /*select_change_handler*/ ctx[3]),
    					listen_dev(select, "change", /*handleChange*/ ctx[2], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*webpages*/ 1) {
    				each_value = /*webpages*/ ctx[0];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$c(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$c(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(select, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}

    			if (dirty & /*selectedUrl, webpages*/ 3) {
    				select_option(select, /*selectedUrl*/ ctx[1]);
    			}

    			if (/*selectedUrl*/ ctx[1]) {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block$9(ctx);
    					if_block.c();
    					if_block.m(div, null);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			destroy_each(each_blocks, detaching);
    			if (if_block) if_block.d();
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$i.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$i($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('SimpleIFrame', slots, []);
    	let selectedUrl = '';

    	let { webpages = [
    		{
    			name: 'Example 1',
    			url: 'https://www.example1.com'
    		},
    		{
    			name: 'Example 2',
    			url: 'https://www.example2.com'
    		},
    		{
    			name: 'Example 3',
    			url: 'https://www.example3.com'
    		}
    	] } = $$props;

    	const handleChange = event => {
    		$$invalidate(1, selectedUrl = event.target.value);
    	};

    	const writable_props = ['webpages'];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<SimpleIFrame> was created with unknown prop '${key}'`);
    	});

    	function select_change_handler() {
    		selectedUrl = select_value(this);
    		$$invalidate(1, selectedUrl);
    		$$invalidate(0, webpages);
    	}

    	$$self.$$set = $$props => {
    		if ('webpages' in $$props) $$invalidate(0, webpages = $$props.webpages);
    	};

    	$$self.$capture_state = () => ({ selectedUrl, webpages, handleChange });

    	$$self.$inject_state = $$props => {
    		if ('selectedUrl' in $$props) $$invalidate(1, selectedUrl = $$props.selectedUrl);
    		if ('webpages' in $$props) $$invalidate(0, webpages = $$props.webpages);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [webpages, selectedUrl, handleChange, select_change_handler];
    }

    class SimpleIFrame extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$i, create_fragment$i, safe_not_equal, { webpages: 0 });

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "SimpleIFrame",
    			options,
    			id: create_fragment$i.name
    		});
    	}

    	get webpages() {
    		throw new Error("<SimpleIFrame>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set webpages(value) {
    		throw new Error("<SimpleIFrame>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    /* src\CustomGameConfigHelper.svelte generated by Svelte v3.59.2 */

    const { Object: Object_1$3, console: console_1$7 } = globals;
    const file$h = "src\\CustomGameConfigHelper.svelte";

    function get_each_context$b(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[32] = list[i];
    	return child_ctx;
    }

    function get_each_context_1$5(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[32] = list[i];
    	return child_ctx;
    }

    // (360:16) {#each filteredKeys as key}
    function create_each_block_1$5(ctx) {
    	let li;
    	let t_value = /*key*/ ctx[32] + "";
    	let t;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t = text(t_value);
    			add_location(li, file$h, 360, 16, 14731);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*filteredKeys*/ 1 && t_value !== (t_value = /*key*/ ctx[32] + "")) set_data_dev(t, t_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$5.name,
    		type: "each",
    		source: "(360:16) {#each filteredKeys as key}",
    		ctx
    	});

    	return block;
    }

    // (369:16) {#each remainingKeys as key}
    function create_each_block$b(ctx) {
    	let li;
    	let t_value = /*key*/ ctx[32] + "";
    	let t;

    	const block = {
    		c: function create() {
    			li = element("li");
    			t = text(t_value);
    			add_location(li, file$h, 369, 16, 14954);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, li, anchor);
    			append_dev(li, t);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*remainingKeys*/ 2 && t_value !== (t_value = /*key*/ ctx[32] + "")) set_data_dev(t, t_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(li);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$b.name,
    		type: "each",
    		source: "(369:16) {#each remainingKeys as key}",
    		ctx
    	});

    	return block;
    }

    // (408:8) {#if Object.keys(mergedJson).length > 0}
    function create_if_block$8(ctx) {
    	let div;
    	let h3;
    	let t1;
    	let pre;
    	let t2_value = JSON.stringify(/*mergedJson*/ ctx[3], null, 2) + "";
    	let t2;
    	let t3;
    	let br;
    	let t4;
    	let button0;
    	let t6;
    	let button1;
    	let mounted;
    	let dispose;

    	const block = {
    		c: function create() {
    			div = element("div");
    			h3 = element("h3");
    			h3.textContent = "Merged JSON:";
    			t1 = space();
    			pre = element("pre");
    			t2 = text(t2_value);
    			t3 = text("\r\n        placeholder for image input for background - optional\r\n        ");
    			br = element("br");
    			t4 = space();
    			button0 = element("button");
    			button0.textContent = "Download Configuration";
    			t6 = space();
    			button1 = element("button");
    			button1.textContent = "Test load for the auto gen config";
    			add_location(h3, file$h, 409, 12, 16347);
    			add_location(pre, file$h, 410, 12, 16382);
    			add_location(div, file$h, 408, 8, 16328);
    			add_location(br, file$h, 413, 8, 16519);
    			add_location(button0, file$h, 414, 8, 16533);
    			add_location(button1, file$h, 415, 8, 16622);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, h3);
    			append_dev(div, t1);
    			append_dev(div, pre);
    			append_dev(pre, t2);
    			insert_dev(target, t3, anchor);
    			insert_dev(target, br, anchor);
    			insert_dev(target, t4, anchor);
    			insert_dev(target, button0, anchor);
    			insert_dev(target, t6, anchor);
    			insert_dev(target, button1, anchor);

    			if (!mounted) {
    				dispose = [
    					listen_dev(button0, "click", /*downloadAutogenConfiguration*/ ctx[12], false, false, false, false),
    					listen_dev(button1, "click", /*loadexperimentalthemedispatch*/ ctx[7], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*mergedJson*/ 8 && t2_value !== (t2_value = JSON.stringify(/*mergedJson*/ ctx[3], null, 2) + "")) set_data_dev(t2, t2_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			if (detaching) detach_dev(t3);
    			if (detaching) detach_dev(br);
    			if (detaching) detach_dev(t4);
    			if (detaching) detach_dev(button0);
    			if (detaching) detach_dev(t6);
    			if (detaching) detach_dev(button1);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$8.name,
    		type: "if",
    		source: "(408:8) {#if Object.keys(mergedJson).length > 0}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$h(ctx) {
    	let div5;
    	let h1;
    	let t1;
    	let h20;
    	let t3;
    	let div4;
    	let div0;
    	let pre;
    	let t7;
    	let div3;
    	let div1;
    	let h21;
    	let t9;
    	let ul0;
    	let t10;
    	let div2;
    	let h22;
    	let t12;
    	let ul1;
    	let t13;
    	let div7;
    	let div6;
    	let hr0;
    	let t14;
    	let h3;
    	let t16;
    	let button0;
    	let t18;
    	let button1;
    	let t20;
    	let button2;
    	let t22;
    	let button3;
    	let t24;
    	let simpleiframe;
    	let t25;
    	let hr1;
    	let t26;
    	let textarea;
    	let t27;
    	let button4;
    	let t29;
    	let show_if = Object.keys(/*mergedJson*/ ctx[3]).length > 0;
    	let t30;
    	let hr2;
    	let t31;
    	let br0;
    	let t32;
    	let br1;
    	let t33;
    	let br2;
    	let current;
    	let mounted;
    	let dispose;
    	let each_value_1 = /*filteredKeys*/ ctx[0];
    	validate_each_argument(each_value_1);
    	let each_blocks_1 = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks_1[i] = create_each_block_1$5(get_each_context_1$5(ctx, each_value_1, i));
    	}

    	let each_value = /*remainingKeys*/ ctx[1];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$b(get_each_context$b(ctx, each_value, i));
    	}

    	simpleiframe = new SimpleIFrame({
    			props: { webpages: /*LLMforassit*/ ctx[6] },
    			$$inline: true
    		});

    	let if_block = show_if && create_if_block$8(ctx);

    	const block = {
    		c: function create() {
    			div5 = element("div");
    			h1 = element("h1");
    			h1.textContent = "Streamlined Config Creator Randomiser has been forced to max 2 story parts and 2 targets each to test load";
    			t1 = space();
    			h20 = element("h2");
    			h20.textContent = "User should be able to control the length in respect to llm used and should be able prompt the llm in chunks";
    			t3 = space();
    			div4 = element("div");
    			div0 = element("div");
    			pre = element("pre");

    			pre.textContent = `              ${JSON.stringify(/*randomContentStructureSubtargets*/ ctx[4], null, 2)}
            `;

    			t7 = space();
    			div3 = element("div");
    			div1 = element("div");
    			h21 = element("h2");
    			h21.textContent = "Filtered Keys:";
    			t9 = space();
    			ul0 = element("ul");

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				each_blocks_1[i].c();
    			}

    			t10 = space();
    			div2 = element("div");
    			h22 = element("h2");
    			h22.textContent = "Remaining Keys:";
    			t12 = space();
    			ul1 = element("ul");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t13 = space();
    			div7 = element("div");
    			div6 = element("div");
    			hr0 = element("hr");
    			t14 = space();
    			h3 = element("h3");
    			h3.textContent = "Snippet JSON (Get from LLM APIs or interfaces), Use the following prompt from the below :";
    			t16 = space();
    			button0 = element("button");
    			button0.textContent = "Copy System Prompt";
    			t18 = space();
    			button1 = element("button");
    			button1.textContent = "Copy User Prompt";
    			t20 = space();
    			button2 = element("button");
    			button2.textContent = "Copy Obstacle Prompt";
    			t22 = space();
    			button3 = element("button");
    			button3.textContent = "Copy Resolution Prompt";
    			t24 = text("\r\n        LLM: ");
    			create_component(simpleiframe.$$.fragment);
    			t25 = space();
    			hr1 = element("hr");
    			t26 = text("\r\n\r\n        LLM Response to be pasted below\r\n        ");
    			textarea = element("textarea");
    			t27 = space();
    			button4 = element("button");
    			button4.textContent = "Merge JSON";
    			t29 = space();
    			if (if_block) if_block.c();
    			t30 = space();
    			hr2 = element("hr");
    			t31 = text("\r\n\r\n    Major Issues now are how are how to incorporate non alert types OR just assume this is the manual part i.e. filling in the blanks the autogen doesnt manage AND ");
    			br0 = element("br");
    			t32 = text("\r\n    Long Structures? ");
    			br1 = element("br");
    			t33 = text("\r\n    How to use the sequence planner in the same workflow? AND ");
    			br2 = element("br");
    			add_location(h1, file$h, 344, 4, 13965);
    			add_location(h20, file$h, 345, 4, 14086);
    			add_location(pre, file$h, 350, 12, 14435);
    			attr_dev(div0, "class", "input-column svelte-1ynthow");
    			add_location(div0, file$h, 348, 8, 14253);
    			add_location(h21, file$h, 357, 12, 14627);
    			add_location(ul0, file$h, 358, 12, 14664);
    			add_location(div1, file$h, 356, 12, 14608);
    			add_location(h22, file$h, 366, 12, 14848);
    			add_location(ul1, file$h, 367, 12, 14886);
    			add_location(div2, file$h, 365, 12, 14829);
    			attr_dev(div3, "class", "output-column svelte-1ynthow");
    			add_location(div3, file$h, 355, 8, 14567);
    			attr_dev(div4, "class", "ContainerColumns svelte-1ynthow");
    			add_location(div4, file$h, 346, 4, 14209);
    			add_location(div5, file$h, 342, 0, 13952);
    			add_location(hr0, file$h, 391, 8, 15460);
    			add_location(h3, file$h, 392, 8, 15474);
    			add_location(button0, file$h, 393, 8, 15582);
    			add_location(button1, file$h, 394, 8, 15681);
    			add_location(button2, file$h, 395, 8, 15776);
    			add_location(button3, file$h, 396, 8, 15879);
    			add_location(hr1, file$h, 399, 8, 16042);
    			attr_dev(textarea, "class", "svelte-1ynthow");
    			add_location(textarea, file$h, 402, 8, 16099);
    			add_location(div6, file$h, 378, 8, 15099);
    			add_location(button4, file$h, 405, 8, 16212);
    			add_location(div7, file$h, 377, 4, 15084);
    			add_location(hr2, file$h, 419, 4, 16748);
    			add_location(br0, file$h, 421, 164, 16920);
    			add_location(br1, file$h, 422, 21, 16947);
    			add_location(br2, file$h, 423, 62, 17015);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div5, anchor);
    			append_dev(div5, h1);
    			append_dev(div5, t1);
    			append_dev(div5, h20);
    			append_dev(div5, t3);
    			append_dev(div5, div4);
    			append_dev(div4, div0);
    			append_dev(div0, pre);
    			append_dev(div4, t7);
    			append_dev(div4, div3);
    			append_dev(div3, div1);
    			append_dev(div1, h21);
    			append_dev(div1, t9);
    			append_dev(div1, ul0);

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				if (each_blocks_1[i]) {
    					each_blocks_1[i].m(ul0, null);
    				}
    			}

    			append_dev(div3, t10);
    			append_dev(div3, div2);
    			append_dev(div2, h22);
    			append_dev(div2, t12);
    			append_dev(div2, ul1);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(ul1, null);
    				}
    			}

    			insert_dev(target, t13, anchor);
    			insert_dev(target, div7, anchor);
    			append_dev(div7, div6);
    			append_dev(div6, hr0);
    			append_dev(div6, t14);
    			append_dev(div6, h3);
    			append_dev(div6, t16);
    			append_dev(div6, button0);
    			append_dev(div6, t18);
    			append_dev(div6, button1);
    			append_dev(div6, t20);
    			append_dev(div6, button2);
    			append_dev(div6, t22);
    			append_dev(div6, button3);
    			append_dev(div6, t24);
    			mount_component(simpleiframe, div6, null);
    			append_dev(div6, t25);
    			append_dev(div6, hr1);
    			append_dev(div6, t26);
    			append_dev(div6, textarea);
    			set_input_value(textarea, /*snippetJsonInput*/ ctx[2]);
    			append_dev(div7, t27);
    			append_dev(div7, button4);
    			append_dev(div7, t29);
    			if (if_block) if_block.m(div7, null);
    			insert_dev(target, t30, anchor);
    			insert_dev(target, hr2, anchor);
    			insert_dev(target, t31, anchor);
    			insert_dev(target, br0, anchor);
    			insert_dev(target, t32, anchor);
    			insert_dev(target, br1, anchor);
    			insert_dev(target, t33, anchor);
    			insert_dev(target, br2, anchor);
    			current = true;

    			if (!mounted) {
    				dispose = [
    					listen_dev(button0, "click", /*click_handler*/ ctx[13], false, false, false, false),
    					listen_dev(button1, "click", /*click_handler_1*/ ctx[14], false, false, false, false),
    					listen_dev(button2, "click", /*click_handler_2*/ ctx[15], false, false, false, false),
    					listen_dev(button3, "click", /*click_handler_3*/ ctx[16], false, false, false, false),
    					listen_dev(textarea, "input", /*textarea_input_handler*/ ctx[17]),
    					listen_dev(textarea, "input", autoExpandTextarea, false, false, false, false),
    					listen_dev(button4, "click", /*handleMerge*/ ctx[5], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*filteredKeys*/ 1) {
    				each_value_1 = /*filteredKeys*/ ctx[0];
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$5(ctx, each_value_1, i);

    					if (each_blocks_1[i]) {
    						each_blocks_1[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_1[i] = create_each_block_1$5(child_ctx);
    						each_blocks_1[i].c();
    						each_blocks_1[i].m(ul0, null);
    					}
    				}

    				for (; i < each_blocks_1.length; i += 1) {
    					each_blocks_1[i].d(1);
    				}

    				each_blocks_1.length = each_value_1.length;
    			}

    			if (dirty[0] & /*remainingKeys*/ 2) {
    				each_value = /*remainingKeys*/ ctx[1];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$b(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$b(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(ul1, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}

    			if (dirty[0] & /*snippetJsonInput*/ 4) {
    				set_input_value(textarea, /*snippetJsonInput*/ ctx[2]);
    			}

    			if (dirty[0] & /*mergedJson*/ 8) show_if = Object.keys(/*mergedJson*/ ctx[3]).length > 0;

    			if (show_if) {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block$8(ctx);
    					if_block.c();
    					if_block.m(div7, null);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(simpleiframe.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(simpleiframe.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div5);
    			destroy_each(each_blocks_1, detaching);
    			destroy_each(each_blocks, detaching);
    			if (detaching) detach_dev(t13);
    			if (detaching) detach_dev(div7);
    			destroy_component(simpleiframe);
    			if (if_block) if_block.d();
    			if (detaching) detach_dev(t30);
    			if (detaching) detach_dev(hr2);
    			if (detaching) detach_dev(t31);
    			if (detaching) detach_dev(br0);
    			if (detaching) detach_dev(t32);
    			if (detaching) detach_dev(br1);
    			if (detaching) detach_dev(t33);
    			if (detaching) detach_dev(br2);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$h.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function generateRandomContentStructureSubtargets() {
    	// Random number generator for various properties
    	function getRandomNumber(max, min = 1) {
    		return Math.floor(Math.random() * (max - min + 1)) + min;
    	}

    	// Recursive function to generate targets and optionally subtargets
    	function generateTargets(level = 0) {
    		const numberOfTargets = getRandomNumber(2); // Generate up to 4 targets -------------------- simplified for test

    		const targets = Array.from({ length: numberOfTargets }, (_, idx) => {
    			const target = {
    				name: `Target${level}_${idx + 1}`,
    				x: getRandomNumber(700),
    				y: getRandomNumber(700),
    				collisionType: 'alert',
    				collisiontext: `Placeholder text for Target ${level}.${idx + 1}`
    			};

    			// Randomly decide if this target should have subtargets, less likely as level increases
    			if (Math.random() < 0.5 - level * 0.1) {
    				target.subTargets = generateTargets(level + 1);
    			}

    			return target;
    		});

    		return targets;
    	}

    	// Generate the random story structure with nested targets
    	const randomStoryPartsLength = getRandomNumber(2); // Generate random number of story parts (1-5) -------------------------------------simplified for tests

    	const randomStoryStructure = Array.from({ length: randomStoryPartsLength }, (_, index) => ({
    		part: index,
    		objectives: Array.from({ length: getRandomNumber(3) }, (_, idx) => ({
    			id: `Objective${index + 1}_${idx + 1}`,
    			name: `Objective ${index + 1}.${idx + 1}`,
    			complete: false
    		})),
    		targets: generateTargets()
    	}));

    	// Compile the full random content structure
    	const randomContentStructure = { story: randomStoryStructure };

    	return randomContentStructure;
    }

    function getKeysFromJSON(json, filter) {
    	const filteredKeys = [];
    	const remainingKeys = [];

    	function traverseObject(obj, parentKey = '') {
    		for (const key in obj) {
    			if (obj.hasOwnProperty(key)) {
    				const fullKey = parentKey ? `${parentKey}.${key}` : key;

    				if (typeof filter === 'function' && filter(fullKey)) {
    					filteredKeys.push(fullKey);
    				} else {
    					remainingKeys.push(fullKey);
    				}

    				if (typeof obj[key] === 'object' && obj[key] !== null) {
    					traverseObject(obj[key], fullKey);
    				}
    			}
    		}
    	}

    	traverseObject(json);
    	return { filteredKeys, remainingKeys };
    }

    function autoExpandTextarea(event) {
    	const textarea = event.target;
    	textarea.style.height = 'auto';
    	textarea.style.height = `${textarea.scrollHeight}px`;
    }

    async function copyText(textToCopy) {
    	try {
    		await navigator.clipboard.writeText(textToCopy);
    		console.log('Text copied to clipboard');
    	} catch(error) {
    		console.error('Failed to copy text: ', err);
    	}
    }

    function instance$h($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('CustomGameConfigHelper', slots, []);
    	let randomContentStructureSubtargets = generateRandomContentStructureSubtargets();
    	console.log(randomContentStructureSubtargets);

    	function copyToClipboardStructuresubtargets() {
    		navigator.clipboard.writeText(JSON.stringify(randomContentStructureSubtargets, null, 2)).then(() => {
    			alert('Random content Structure copied to clipboard!');
    		}).catch(error => {
    			console.error('Failed to copy to clipboard:', error);
    			alert('Error, Random content Structure failed to copy due to error!');
    		});
    	}

    	//Filter -----------------------------------------------------------------------------------------------------
    	let jsonInput = '';

    	let json = {};
    	let filteredKeys = [];
    	let remainingKeys = [];
    	let llmresponseformat = '{"story" : [{},{},... ]';

    	function extractKeys() {
    		try {
    			//json = JSON.parse(jsonInput);
    			json = randomContentStructureSubtargets;

    			const { filteredKeys: filtered, remainingKeys: remaining } = getKeysFromJSON(json, key => {
    				return key.includes('name') || key.includes('collisiontext'); //|| modal fields;
    			}); //return key.endsWith('.x') || key.endsWith('.y') || key.includes('Type') || key.includes('complete');

    			$$invalidate(0, filteredKeys = filtered);
    			$$invalidate(1, remainingKeys = remaining);
    		} catch(error) {
    			console.error('Invalid JSON:', error);
    			$$invalidate(0, filteredKeys = []);
    			$$invalidate(1, remainingKeys = []);
    		}
    	}

    	extractKeys();

    	//Merge ------------------------------------------------------------------------------------------------------
    	let randomContentStructureSubtargetsstring = JSON.stringify(randomContentStructureSubtargets, null, 2);

    	let originalJson = randomContentStructureSubtargets;
    	let snippetJson = {};
    	let snippetJsonInput = '';
    	let mergedJson = {};

    	// function mergeJSON(original, snippet) {
    	//   const merged = JSON.parse(JSON.stringify(original));
    	//   // Update objectives
    	//   if (Array.isArray(snippet.story.objectives)) {
    	//     merged.story[0].objectives.forEach((obj, index) => {
    	//       if (snippet.story.objectives[index]) {
    	//         obj.name = snippet.story.objectives[index].name;
    	//       }
    	//     });
    	//   }
    	//   // Update targets
    	//   if (Array.isArray(snippet.story.targets)) {
    	//     merged.story[0].targets.forEach((target, index) => {
    	//       if (snippet.story.targets[index]) {
    	//         target.name = snippet.story.targets[index].name;
    	//         target.collisiontext = snippet.story.targets[index].collisiontext;
    	//         // Update subTargets recursively
    	//         function updateSubTargets(originalSubTargets, snippetSubTargets) {
    	//           originalSubTargets.forEach((subTarget, subIndex) => {
    	//             if (snippetSubTargets[subIndex]) {
    	//               subTarget.name = snippetSubTargets[subIndex].name;
    	//               subTarget.collisiontext = snippetSubTargets[subIndex].collisiontext;
    	//               if (Array.isArray(snippetSubTargets[subIndex].subTargets)) {
    	//                 updateSubTargets(subTarget.subTargets, snippetSubTargets[subIndex].subTargets);
    	//               }
    	//             }
    	//           });
    	//         }
    	//         if (Array.isArray(target.subTargets) && Array.isArray(snippet.story.targets[index].subTargets)) {
    	//           updateSubTargets(target.subTargets, snippet.story.targets[index].subTargets);
    	//         }
    	//       }
    	//     });
    	//   }
    	//     autogenconfigtest.update(currentData => {
    	//     const updatedData = { ...currentData, ...merged };
    	//     return updatedData;
    	// });
    	//     return merged;
    	// }
    	// function mergeJSON(original, snippet) {
    	//     const merged = JSON.parse(JSON.stringify(original));
    	//     // Update objectives
    	//     if (Array.isArray(snippet.story[0].objectives)) {
    	//         merged.story[0].objectives.forEach((obj, index) => {
    	//         if (snippet.story[0].objectives[index]) {
    	//             obj.name = snippet.story[0].objectives[index].name;
    	//         }
    	//         });
    	//     }
    	//     // Update targets
    	//     if (Array.isArray(snippet.story[0].targets)) {
    	//         merged.story[0].targets.forEach((target, index) => {
    	//         if (snippet.story[0].targets[index]) {
    	//             target.name = snippet.story[0].targets[index].name;
    	//             target.collisiontext = snippet.story[0].targets[index].collisiontext;
    	//         }
    	//         });
    	//     }
    	//     autogenconfigtest.update(currentData => {
    	//         const updatedData = { ...currentData, ...merged };
    	//         return updatedData;
    	//     });
    	//     return merged;
    	// }
    	function mergeJSON(original, snippet) {
    		const merged = JSON.parse(JSON.stringify(original));

    		// Update story parts
    		snippet.story.forEach((part, partIndex) => {
    			if (merged.story[partIndex]) {
    				// Update objectives
    				if (Array.isArray(part.objectives)) {
    					part.objectives.forEach((obj, objIndex) => {
    						if (merged.story[partIndex].objectives[objIndex]) {
    							merged.story[partIndex].objectives[objIndex].name = obj.name;
    						}
    					});
    				}

    				// Update targets
    				if (Array.isArray(part.targets)) {
    					part.targets.forEach((target, targetIndex) => {
    						if (merged.story[partIndex].targets[targetIndex]) {
    							merged.story[partIndex].targets[targetIndex].name = target.name;
    							merged.story[partIndex].targets[targetIndex].collisiontext = target.collisiontext;

    							// Update subtargets recursively
    							function updateSubTargets(originalSubTargets, snippetSubTargets) {
    								snippetSubTargets.forEach((subTarget, subIndex) => {
    									if (originalSubTargets[subIndex]) {
    										originalSubTargets[subIndex].name = subTarget.name;
    										originalSubTargets[subIndex].collisiontext = subTarget.collisiontext;

    										if (Array.isArray(subTarget.subTargets)) {
    											updateSubTargets(originalSubTargets[subIndex].subTargets, subTarget.subTargets);
    										}
    									}
    								});
    							}

    							if (Array.isArray(target.subTargets)) {
    								updateSubTargets(merged.story[partIndex].targets[targetIndex].subTargets, target.subTargets);
    							}
    						}
    					});
    				}
    			}
    		});

    		//console.log(merged);
    		autogenconfigtest.update(currentData => {
    			const updatedData = { ...currentData, ...merged };

    			//console.log(updatedData);
    			return updatedData;
    		});

    		return merged;
    	}

    	function handleMerge() {
    		try {
    			//originalJson = JSON.parse(originalJsonInput);
    			snippetJson = JSON.parse(snippetJsonInput);

    			//console.log(snippetJson)
    			$$invalidate(3, mergedJson = mergeJSON(originalJson, snippetJson));
    		} catch(error) {
    			console.error('Invalid JSON:', error);
    			$$invalidate(3, mergedJson = {});
    		}
    	}

    	//Live Asset Generation 
    	let LLMforassit = [
    		{
    			name: 'Qwen/Qwen1.5-110B-Chat-demo',
    			url: 'https://qwen-qwen1-5-110b-chat-demo.hf.space'
    		}
    	]; //List of models with system prompt available

    	//Load Function
    	const dispatch = createEventDispatcher();

    	function loadexperimentalthemedispatch() {
    		dispatch('loadexperimentaltheme'); //doesnt work right probably as function is in game component which is not the top level parent
    	}

    	//Generate sequence guidance 
    	let predefinedsequenceList = [
    		'exploreLocation',
    		'discoverClue',
    		'meetCharacter',
    		'solveRiddle',
    		'findItem',
    		'faceChallenge',
    		'makeDecision',
    		'engageBattle',
    		'unlockAbility',
    		'learnSecret',
    		'completeMission',
    		'experienceSetback',
    		'earnReward',
    		'uncoverMystery',
    		'formAlliance',
    		'faceBetrayal',
    		'confrontNemesis',
    		'makeDiscovery',
    		'overcomeLoss',
    		'achieveVictory'
    	];

    	let suggestedplayerSequence = [];

    	function generatesimpleSequence(maxitems) {
    		//The complex ones are handled the brainstorm component
    		const sequence = [];

    		for (let i = 0; i < maxitems; i++) {
    			const randomIndex = Math.floor(Math.random() * predefinedsequenceList.length);
    			sequence.push(predefinedsequenceList[randomIndex]);
    		}

    		suggestedplayerSequence = [...sequence];
    	}

    	let amountofcollisiontext = filteredKeys.filter(s => s.includes("collisiontext")).length;
    	generatesimpleSequence(amountofcollisiontext);
    	let CopyGameAssistSystemPrompt = 'Use the fields given to you to create a JSON object to fulfill the request of creating a story in JSON form - Its a story that will be interactive. The format is {"story" : [{},{},... ]. If possible follow the sequence suggested';
    	let CopyGameAssistUserPrompt = `Use the following fields to write a pirate story -\nsuggested sequence - ${suggestedplayerSequence.join(', ')}  \n\n${filteredKeys}`;
    	let CopyGameAssistObstaclePrompt = 'Lets next come up with obstables to the objectives';
    	let CopyGameAssistResolutionPrompt = 'Lets next come up with resolutions to the obstables to the objectives';

    	//Save CustomJSON
    	function downloadAutogenConfiguration() {
    		const currentDate = new Date();
    		const timestamp = currentDate.toISOString().replace(/:/g, '_');
    		const fileName = `gameConfig_${timestamp}.json`;
    		const blob = new Blob([JSON.stringify(mergedJson, null, 2)], { type: 'application/json' });
    		const href = URL.createObjectURL(blob);
    		const link = document.createElement('a');
    		link.href = href;
    		link.download = fileName;
    		document.body.appendChild(link);
    		link.click();
    		document.body.removeChild(link);
    	}

    	const writable_props = [];

    	Object_1$3.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$7.warn(`<CustomGameConfigHelper> was created with unknown prop '${key}'`);
    	});

    	const click_handler = () => copyText(CopyGameAssistSystemPrompt);
    	const click_handler_1 = () => copyText(CopyGameAssistUserPrompt);
    	const click_handler_2 = () => copyText(CopyGameAssistObstaclePrompt);
    	const click_handler_3 = () => copyText(CopyGameAssistResolutionPrompt);

    	function textarea_input_handler() {
    		snippetJsonInput = this.value;
    		$$invalidate(2, snippetJsonInput);
    	}

    	$$self.$capture_state = () => ({
    		autogenconfigtest,
    		SimpleIFrame,
    		createEventDispatcher,
    		generateRandomContentStructureSubtargets,
    		randomContentStructureSubtargets,
    		copyToClipboardStructuresubtargets,
    		jsonInput,
    		json,
    		filteredKeys,
    		remainingKeys,
    		llmresponseformat,
    		getKeysFromJSON,
    		extractKeys,
    		autoExpandTextarea,
    		randomContentStructureSubtargetsstring,
    		originalJson,
    		snippetJson,
    		snippetJsonInput,
    		mergedJson,
    		mergeJSON,
    		handleMerge,
    		LLMforassit,
    		dispatch,
    		loadexperimentalthemedispatch,
    		predefinedsequenceList,
    		suggestedplayerSequence,
    		generatesimpleSequence,
    		amountofcollisiontext,
    		CopyGameAssistSystemPrompt,
    		CopyGameAssistUserPrompt,
    		CopyGameAssistObstaclePrompt,
    		CopyGameAssistResolutionPrompt,
    		copyText,
    		downloadAutogenConfiguration
    	});

    	$$self.$inject_state = $$props => {
    		if ('randomContentStructureSubtargets' in $$props) $$invalidate(4, randomContentStructureSubtargets = $$props.randomContentStructureSubtargets);
    		if ('jsonInput' in $$props) jsonInput = $$props.jsonInput;
    		if ('json' in $$props) json = $$props.json;
    		if ('filteredKeys' in $$props) $$invalidate(0, filteredKeys = $$props.filteredKeys);
    		if ('remainingKeys' in $$props) $$invalidate(1, remainingKeys = $$props.remainingKeys);
    		if ('llmresponseformat' in $$props) llmresponseformat = $$props.llmresponseformat;
    		if ('randomContentStructureSubtargetsstring' in $$props) randomContentStructureSubtargetsstring = $$props.randomContentStructureSubtargetsstring;
    		if ('originalJson' in $$props) originalJson = $$props.originalJson;
    		if ('snippetJson' in $$props) snippetJson = $$props.snippetJson;
    		if ('snippetJsonInput' in $$props) $$invalidate(2, snippetJsonInput = $$props.snippetJsonInput);
    		if ('mergedJson' in $$props) $$invalidate(3, mergedJson = $$props.mergedJson);
    		if ('LLMforassit' in $$props) $$invalidate(6, LLMforassit = $$props.LLMforassit);
    		if ('predefinedsequenceList' in $$props) predefinedsequenceList = $$props.predefinedsequenceList;
    		if ('suggestedplayerSequence' in $$props) suggestedplayerSequence = $$props.suggestedplayerSequence;
    		if ('amountofcollisiontext' in $$props) amountofcollisiontext = $$props.amountofcollisiontext;
    		if ('CopyGameAssistSystemPrompt' in $$props) $$invalidate(8, CopyGameAssistSystemPrompt = $$props.CopyGameAssistSystemPrompt);
    		if ('CopyGameAssistUserPrompt' in $$props) $$invalidate(9, CopyGameAssistUserPrompt = $$props.CopyGameAssistUserPrompt);
    		if ('CopyGameAssistObstaclePrompt' in $$props) $$invalidate(10, CopyGameAssistObstaclePrompt = $$props.CopyGameAssistObstaclePrompt);
    		if ('CopyGameAssistResolutionPrompt' in $$props) $$invalidate(11, CopyGameAssistResolutionPrompt = $$props.CopyGameAssistResolutionPrompt);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		filteredKeys,
    		remainingKeys,
    		snippetJsonInput,
    		mergedJson,
    		randomContentStructureSubtargets,
    		handleMerge,
    		LLMforassit,
    		loadexperimentalthemedispatch,
    		CopyGameAssistSystemPrompt,
    		CopyGameAssistUserPrompt,
    		CopyGameAssistObstaclePrompt,
    		CopyGameAssistResolutionPrompt,
    		downloadAutogenConfiguration,
    		click_handler,
    		click_handler_1,
    		click_handler_2,
    		click_handler_3,
    		textarea_input_handler
    	];
    }

    class CustomGameConfigHelper extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$h, create_fragment$h, safe_not_equal, {}, null, [-1, -1]);

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "CustomGameConfigHelper",
    			options,
    			id: create_fragment$h.name
    		});
    	}
    }

    /* src\MovingDotSpaceThemeManager.svelte generated by Svelte v3.59.2 */
    const file$g = "src\\MovingDotSpaceThemeManager.svelte";

    // (97:4) <SimpleCollapsible title="Streamlined Config Steps">
    function create_default_slot_2(ctx) {
    	let customgameconfighelper;
    	let current;
    	customgameconfighelper = new CustomGameConfigHelper({ $$inline: true });

    	const block = {
    		c: function create() {
    			create_component(customgameconfighelper.$$.fragment);
    		},
    		m: function mount(target, anchor) {
    			mount_component(customgameconfighelper, target, anchor);
    			current = true;
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(customgameconfighelper.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(customgameconfighelper.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			destroy_component(customgameconfighelper, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_default_slot_2.name,
    		type: "slot",
    		source: "(97:4) <SimpleCollapsible title=\\\"Streamlined Config Steps\\\">",
    		ctx
    	});

    	return block;
    }

    // (101:4) <SimpleCollapsible title="Incomplete Story structure and Timeline suggestion engines">
    function create_default_slot_1(ctx) {
    	let hr;
    	let t0;
    	let br0;
    	let t1;
    	let br1;
    	let t2;
    	let brainstormstatetransitionsrandom;
    	let current;
    	brainstormstatetransitionsrandom = new BrainstormStateTransitionsRandom({ $$inline: true });

    	const block = {
    		c: function create() {
    			hr = element("hr");
    			t0 = text("\r\n        Early Sequence examples - \r\n        ");
    			br0 = element("br");
    			t1 = text("Write a story where the main event are in this order: gosomewhere getsomething makeobservation getsomething talktosomeone makeobservation getsomething talktosomeone gosomewhere fight talktosomeone fight fight talktosomeone talktosomeone talktosomeone gosomewhere talktosomeone\r\n        ");
    			br1 = element("br");
    			t2 = text("lets write the story to fit this order - stats location stats inventory stats location location skills inventory stats inventory skills skills skills stats stats skills\r\n        \r\n        ");
    			create_component(brainstormstatetransitionsrandom.$$.fragment);
    			add_location(hr, file$g, 101, 8, 4653);
    			add_location(br0, file$g, 103, 8, 4703);
    			add_location(br1, file$g, 104, 8, 4993);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, hr, anchor);
    			insert_dev(target, t0, anchor);
    			insert_dev(target, br0, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, br1, anchor);
    			insert_dev(target, t2, anchor);
    			mount_component(brainstormstatetransitionsrandom, target, anchor);
    			current = true;
    		},
    		p: noop,
    		i: function intro(local) {
    			if (current) return;
    			transition_in(brainstormstatetransitionsrandom.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(brainstormstatetransitionsrandom.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(hr);
    			if (detaching) detach_dev(t0);
    			if (detaching) detach_dev(br0);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(br1);
    			if (detaching) detach_dev(t2);
    			destroy_component(brainstormstatetransitionsrandom, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_default_slot_1.name,
    		type: "slot",
    		source: "(101:4) <SimpleCollapsible title=\\\"Incomplete Story structure and Timeline suggestion engines\\\">",
    		ctx
    	});

    	return block;
    }

    // (72:0) <SimpleCollapsible title="Config Customisation Assistant - WIP">
    function create_default_slot$2(ctx) {
    	let t0;
    	let hr;
    	let t1;
    	let simplecollapsible0;
    	let t2;
    	let simplecollapsible1;
    	let current;

    	simplecollapsible0 = new SimpleCollapsible({
    			props: {
    				title: "Streamlined Config Steps",
    				$$slots: { default: [create_default_slot_2] },
    				$$scope: { ctx }
    			},
    			$$inline: true
    		});

    	simplecollapsible1 = new SimpleCollapsible({
    			props: {
    				title: "Incomplete Story structure and Timeline suggestion engines",
    				$$slots: { default: [create_default_slot_1] },
    				$$scope: { ctx }
    			},
    			$$inline: true
    		});

    	const block = {
    		c: function create() {
    			t0 = text("Currently the state machine is the json config -  Story parts / target type controlled by switch case for collisions and smmodal (state machine modal as the targets all have to a transitions field) (modals and smmodals not yet part of randomisers below)\r\n    ");
    			hr = element("hr");
    			t1 = text("\r\n    Incomplete/Unpolished Custom game setting assistant\r\n    \r\n    \r\n\r\n    \r\n\r\n    \r\n    \r\n\r\n    \r\n    \r\n    ");
    			create_component(simplecollapsible0.$$.fragment);
    			t2 = space();
    			create_component(simplecollapsible1.$$.fragment);
    			add_location(hr, file$g, 73, 4, 3323);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, t0, anchor);
    			insert_dev(target, hr, anchor);
    			insert_dev(target, t1, anchor);
    			mount_component(simplecollapsible0, target, anchor);
    			insert_dev(target, t2, anchor);
    			mount_component(simplecollapsible1, target, anchor);
    			current = true;
    		},
    		p: function update(ctx, dirty) {
    			const simplecollapsible0_changes = {};

    			if (dirty & /*$$scope*/ 8192) {
    				simplecollapsible0_changes.$$scope = { dirty, ctx };
    			}

    			simplecollapsible0.$set(simplecollapsible0_changes);
    			const simplecollapsible1_changes = {};

    			if (dirty & /*$$scope*/ 8192) {
    				simplecollapsible1_changes.$$scope = { dirty, ctx };
    			}

    			simplecollapsible1.$set(simplecollapsible1_changes);
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(simplecollapsible0.$$.fragment, local);
    			transition_in(simplecollapsible1.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(simplecollapsible0.$$.fragment, local);
    			transition_out(simplecollapsible1.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(t0);
    			if (detaching) detach_dev(hr);
    			if (detaching) detach_dev(t1);
    			destroy_component(simplecollapsible0, detaching);
    			if (detaching) detach_dev(t2);
    			destroy_component(simplecollapsible1, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_default_slot$2.name,
    		type: "slot",
    		source: "(72:0) <SimpleCollapsible title=\\\"Config Customisation Assistant - WIP\\\">",
    		ctx
    	});

    	return block;
    }

    function create_fragment$g(ctx) {
    	let simplecollapsible;
    	let t0;
    	let hr;
    	let t1;
    	let div3;
    	let div0;
    	let t2;
    	let br0;
    	let t3;
    	let br1;
    	let t4;
    	let br2;
    	let t5;
    	let t6;
    	let div1;
    	let t7;
    	let br3;
    	let t8;
    	let br4;
    	let t9;
    	let t10;
    	let div2;
    	let t11;
    	let t12;
    	let br5;
    	let t13;
    	let current;

    	simplecollapsible = new SimpleCollapsible({
    			props: {
    				title: "Config Customisation Assistant - WIP",
    				$$slots: { default: [create_default_slot$2] },
    				$$scope: { ctx }
    			},
    			$$inline: true
    		});

    	const block = {
    		c: function create() {
    			create_component(simplecollapsible.$$.fragment);
    			t0 = space();
    			hr = element("hr");
    			t1 = text("\r\nNext Is autogenerate + extract + llm api call for the JSON snippet + Merge in one button press + load into game component for testing + Sequence generate built into autogenerate json as an option (sequence becomes the placeholder text)\r\n\r\n");
    			div3 = element("div");
    			div0 = element("div");
    			t2 = text("TODO - ");
    			br0 = element("br");
    			t3 = text(" Simplify Theme Manager ");
    			br1 = element("br");
    			t4 = text(" Fix state transition and game mechanic integration ");
    			br2 = element("br");
    			t5 = text(" Flesh out Iframe modal gameplay eg. youtube video as an item and llm judge");
    			t6 = space();
    			div1 = element("div");
    			t7 = text("Website = multilingual support in chrome (when running locally) ");
    			br3 = element("br");
    			t8 = text("\r\n        The mechanics here are location based so story should be location based ");
    			br4 = element("br");
    			t9 = text("\r\n        Simultaneous relationships between multiple items = complexity - eg. player location and objectives");
    			t10 = space();
    			div2 = element("div");
    			t11 = text(/*ChangedContentPlaceholder*/ ctx[0]);
    			t12 = space();
    			br5 = element("br");
    			t13 = text("\r\n        Most stories for games are about a character that lacks something to beat their problems and the 90% inbetween the begining and the end is acquiring");
    			add_location(hr, file$g, 111, 0, 5275);
    			add_location(br0, file$g, 117, 15, 5587);
    			add_location(br1, file$g, 117, 43, 5615);
    			add_location(br2, file$g, 117, 99, 5671);
    			add_location(div0, file$g, 116, 4, 5565);
    			add_location(br3, file$g, 121, 72, 5849);
    			add_location(br4, file$g, 122, 80, 5935);
    			add_location(div1, file$g, 120, 4, 5770);
    			add_location(br5, file$g, 127, 38, 6113);
    			add_location(div2, file$g, 126, 4, 6068);
    			attr_dev(div3, "class", "grid-themegridContainer svelte-qg4vfk");
    			add_location(div3, file$g, 114, 0, 5520);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			mount_component(simplecollapsible, target, anchor);
    			insert_dev(target, t0, anchor);
    			insert_dev(target, hr, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, div3, anchor);
    			append_dev(div3, div0);
    			append_dev(div0, t2);
    			append_dev(div0, br0);
    			append_dev(div0, t3);
    			append_dev(div0, br1);
    			append_dev(div0, t4);
    			append_dev(div0, br2);
    			append_dev(div0, t5);
    			append_dev(div3, t6);
    			append_dev(div3, div1);
    			append_dev(div1, t7);
    			append_dev(div1, br3);
    			append_dev(div1, t8);
    			append_dev(div1, br4);
    			append_dev(div1, t9);
    			append_dev(div3, t10);
    			append_dev(div3, div2);
    			append_dev(div2, t11);
    			append_dev(div2, t12);
    			append_dev(div2, br5);
    			append_dev(div2, t13);
    			current = true;
    		},
    		p: function update(ctx, [dirty]) {
    			const simplecollapsible_changes = {};

    			if (dirty & /*$$scope*/ 8192) {
    				simplecollapsible_changes.$$scope = { dirty, ctx };
    			}

    			simplecollapsible.$set(simplecollapsible_changes);
    			if (!current || dirty & /*ChangedContentPlaceholder*/ 1) set_data_dev(t11, /*ChangedContentPlaceholder*/ ctx[0]);
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(simplecollapsible.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(simplecollapsible.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			destroy_component(simplecollapsible, detaching);
    			if (detaching) detach_dev(t0);
    			if (detaching) detach_dev(hr);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(div3);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$g.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$g($$self, $$props, $$invalidate) {
    	let $targets;
    	let $objectives;
    	let $skills;
    	let $inventory;
    	validate_store(targets, 'targets');
    	component_subscribe($$self, targets, $$value => $$invalidate(4, $targets = $$value));
    	validate_store(objectives, 'objectives');
    	component_subscribe($$self, objectives, $$value => $$invalidate(5, $objectives = $$value));
    	validate_store(skills, 'skills');
    	component_subscribe($$self, skills, $$value => $$invalidate(6, $skills = $$value));
    	validate_store(inventory, 'inventory');
    	component_subscribe($$self, inventory, $$value => $$invalidate(7, $inventory = $$value));
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotSpaceThemeManager', slots, []);
    	let { ChangedContentPlaceholder = "" } = $$props;
    	let newItem = { type: "", name: "", description: "" };
    	let newSkill = { branch: "", name: "", learned: false };
    	let newObjective = { branch: "", name: "", complete: false };

    	// ... similarly for targets
    	function addItem() {
    		inventory.update(items => [...items, newItem]);
    		newItem = { type: "", name: "", description: "" }; // Reset form
    	}

    	function addSkill() {
    		skills.update(skills => [...skills, newSkill]);
    		newSkill = { branch: "", name: "", learned: false }; // Reset form
    	}

    	function addObjective() {
    		objectives.update(objectives => [...objectives, newObjective]);
    		newObjective = { branch: "", name: "", complete: false }; // Reset form
    	}

    	// ... similarly for targets
    	// Functions to save and load configurations to/from localStorage or a backend would also be defined here
    	// Function to download the current configuration as a JSON file
    	function downloadConfiguration() {
    		const gameConfig = {
    			inventory: $inventory,
    			skills: $skills,
    			objectives: $objectives,
    			targets: $targets
    		};

    		const blob = new Blob([JSON.stringify(gameConfig, null, 2)], { type: 'application/json' });
    		const href = URL.createObjectURL(blob);
    		const link = document.createElement('a');
    		link.href = href;
    		link.download = 'gameConfig.json';
    		document.body.appendChild(link);
    		link.click();
    		document.body.removeChild(link);
    	}

    	// Function to load configuration from an uploaded JSON file
    	function handleFileUpload(event) {
    		const file = event.target.files[0];

    		if (file) {
    			const reader = new FileReader();

    			reader.onload = e => {
    				const fileContent = e.target.result;
    				const { inventory: loadedInventory, skills: loadedSkills, objectives: loadedObjectives, targets: loadedTargets } = JSON.parse(fileContent);
    				inventory.set(loadedInventory);
    				skills.set(loadedSkills);
    				objectives.set(loadedObjectives);
    				targets.set(loadedTargets);
    				alert('Configuration loaded!');
    			};

    			reader.readAsText(file);
    		}
    	}

    	const writable_props = ['ChangedContentPlaceholder'];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<MovingDotSpaceThemeManager> was created with unknown prop '${key}'`);
    	});

    	$$self.$$set = $$props => {
    		if ('ChangedContentPlaceholder' in $$props) $$invalidate(0, ChangedContentPlaceholder = $$props.ChangedContentPlaceholder);
    	};

    	$$self.$capture_state = () => ({
    		ChangedContentPlaceholder,
    		inventory,
    		skills,
    		objectives,
    		targets,
    		SimpleCollapsible,
    		BrainstormGameConfigsRandom,
    		BrainstormStateTransitionsRandom,
    		Testbrainstorminstantpopulate,
    		Testjsonmatchingfieldmerge,
    		CustomGameConfigHelper,
    		newItem,
    		newSkill,
    		newObjective,
    		addItem,
    		addSkill,
    		addObjective,
    		downloadConfiguration,
    		handleFileUpload,
    		$targets,
    		$objectives,
    		$skills,
    		$inventory
    	});

    	$$self.$inject_state = $$props => {
    		if ('ChangedContentPlaceholder' in $$props) $$invalidate(0, ChangedContentPlaceholder = $$props.ChangedContentPlaceholder);
    		if ('newItem' in $$props) newItem = $$props.newItem;
    		if ('newSkill' in $$props) newSkill = $$props.newSkill;
    		if ('newObjective' in $$props) newObjective = $$props.newObjective;
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [ChangedContentPlaceholder];
    }

    class MovingDotSpaceThemeManager extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$g, create_fragment$g, safe_not_equal, { ChangedContentPlaceholder: 0 });

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotSpaceThemeManager",
    			options,
    			id: create_fragment$g.name
    		});
    	}

    	get ChangedContentPlaceholder() {
    		throw new Error("<MovingDotSpaceThemeManager>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set ChangedContentPlaceholder(value) {
    		throw new Error("<MovingDotSpaceThemeManager>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    /* src\MovingDotSpaceGameFight.svelte generated by Svelte v3.59.2 */

    const file$f = "src\\MovingDotSpaceGameFight.svelte";

    // (88:8) {#if $fightcurrentTurn === 'human'}
    function create_if_block$7(ctx) {
    	let button0;
    	let t1;
    	let button1;
    	let t3;
    	let button2;
    	let mounted;
    	let dispose;

    	const block_1 = {
    		c: function create() {
    			button0 = element("button");
    			button0.textContent = "Attack";
    			t1 = space();
    			button1 = element("button");
    			button1.textContent = "Special Attack";
    			t3 = space();
    			button2 = element("button");
    			button2.textContent = "Block";
    			add_location(button0, file$f, 88, 12, 3623);
    			add_location(button1, file$f, 89, 12, 3730);
    			add_location(button2, file$f, 90, 12, 3856);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button0, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, button1, anchor);
    			insert_dev(target, t3, anchor);
    			insert_dev(target, button2, anchor);

    			if (!mounted) {
    				dispose = [
    					listen_dev(button0, "click", /*click_handler*/ ctx[5], false, false, false, false),
    					listen_dev(button1, "click", /*click_handler_1*/ ctx[6], false, false, false, false),
    					listen_dev(button2, "click", /*click_handler_2*/ ctx[7], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button0);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(button1);
    			if (detaching) detach_dev(t3);
    			if (detaching) detach_dev(button2);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block: block_1,
    		id: create_if_block$7.name,
    		type: "if",
    		source: "(88:8) {#if $fightcurrentTurn === 'human'}",
    		ctx
    	});

    	return block_1;
    }

    function create_fragment$f(ctx) {
    	let div4;
    	let div0;
    	let t0;
    	let br0;
    	let t1;
    	let t2_value = /*$fightplayerHuman*/ ctx[1].fighthealth + "";
    	let t2;
    	let t3;
    	let br1;
    	let t4;
    	let t5_value = /*$fightplayerHuman*/ ctx[1].fightstamina + "";
    	let t5;
    	let t6;
    	let br2;
    	let t7;

    	let t8_value = (/*$fightplayerHuman*/ ctx[1].fightisBlocking
    	? 'Blocking'
    	: '') + "";

    	let t8;
    	let t9;
    	let br3;
    	let t10;
    	let t11_value = /*$fightplayerHuman*/ ctx[1].fightcooldowns.attack + "";
    	let t11;
    	let t12;
    	let br4;
    	let t13;
    	let div2;
    	let div1;

    	let t14_value = (/*$fightcurrentTurn*/ ctx[0] === 'human'
    	? "Your turn"
    	: "Computer's turn") + "";

    	let t14;
    	let t15;
    	let t16;
    	let div3;
    	let t17;
    	let br5;
    	let t18;
    	let t19_value = /*$fightplayerComputer*/ ctx[2].fighthealth + "";
    	let t19;
    	let t20;
    	let br6;
    	let t21;
    	let t22_value = /*$fightplayerComputer*/ ctx[2].fightstamina + "";
    	let t22;
    	let t23;
    	let br7;
    	let t24;

    	let t25_value = (/*$fightplayerComputer*/ ctx[2].fightisBlocking
    	? 'Blocking'
    	: '') + "";

    	let t25;
    	let t26;
    	let br8;
    	let t27;
    	let t28_value = /*$fightplayerComputer*/ ctx[2].fightcooldowns.attack + "";
    	let t28;
    	let t29;
    	let br9;
    	let if_block = /*$fightcurrentTurn*/ ctx[0] === 'human' && create_if_block$7(ctx);

    	const block_1 = {
    		c: function create() {
    			div4 = element("div");
    			div0 = element("div");
    			t0 = text("Player 1 ");
    			br0 = element("br");
    			t1 = text("\r\n        Health: ");
    			t2 = text(t2_value);
    			t3 = space();
    			br1 = element("br");
    			t4 = text("\r\n        Stamina: ");
    			t5 = text(t5_value);
    			t6 = space();
    			br2 = element("br");
    			t7 = space();
    			t8 = text(t8_value);
    			t9 = space();
    			br3 = element("br");
    			t10 = text("\r\n        Cooldown: Attack - ");
    			t11 = text(t11_value);
    			t12 = text("s ");
    			br4 = element("br");
    			t13 = space();
    			div2 = element("div");
    			div1 = element("div");
    			t14 = text(t14_value);
    			t15 = space();
    			if (if_block) if_block.c();
    			t16 = space();
    			div3 = element("div");
    			t17 = text("Player 2 ");
    			br5 = element("br");
    			t18 = text("\r\n        Health: ");
    			t19 = text(t19_value);
    			t20 = space();
    			br6 = element("br");
    			t21 = text("\r\n        Stamina: ");
    			t22 = text(t22_value);
    			t23 = space();
    			br7 = element("br");
    			t24 = space();
    			t25 = text(t25_value);
    			t26 = space();
    			br8 = element("br");
    			t27 = text("\r\n        Cooldown: Attack - ");
    			t28 = text(t28_value);
    			t29 = text("s ");
    			br9 = element("br");
    			add_location(br0, file$f, 76, 17, 3171);
    			add_location(br1, file$f, 77, 48, 3225);
    			add_location(br2, file$f, 78, 50, 3281);
    			add_location(br3, file$f, 79, 62, 3349);
    			add_location(br4, file$f, 80, 70, 3425);
    			add_location(div0, file$f, 75, 4, 3147);
    			add_location(div1, file$f, 84, 8, 3464);
    			add_location(div2, file$f, 83, 4, 3449);
    			add_location(br5, file$f, 95, 17, 3978);
    			add_location(br6, file$f, 96, 51, 4035);
    			add_location(br7, file$f, 97, 53, 4094);
    			add_location(br8, file$f, 98, 65, 4165);
    			add_location(br9, file$f, 99, 73, 4244);
    			add_location(div3, file$f, 94, 4, 3954);
    			attr_dev(div4, "class", "statscontainer svelte-izilsr");
    			add_location(div4, file$f, 74, 0, 3113);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div4, anchor);
    			append_dev(div4, div0);
    			append_dev(div0, t0);
    			append_dev(div0, br0);
    			append_dev(div0, t1);
    			append_dev(div0, t2);
    			append_dev(div0, t3);
    			append_dev(div0, br1);
    			append_dev(div0, t4);
    			append_dev(div0, t5);
    			append_dev(div0, t6);
    			append_dev(div0, br2);
    			append_dev(div0, t7);
    			append_dev(div0, t8);
    			append_dev(div0, t9);
    			append_dev(div0, br3);
    			append_dev(div0, t10);
    			append_dev(div0, t11);
    			append_dev(div0, t12);
    			append_dev(div0, br4);
    			append_dev(div4, t13);
    			append_dev(div4, div2);
    			append_dev(div2, div1);
    			append_dev(div1, t14);
    			append_dev(div2, t15);
    			if (if_block) if_block.m(div2, null);
    			append_dev(div4, t16);
    			append_dev(div4, div3);
    			append_dev(div3, t17);
    			append_dev(div3, br5);
    			append_dev(div3, t18);
    			append_dev(div3, t19);
    			append_dev(div3, t20);
    			append_dev(div3, br6);
    			append_dev(div3, t21);
    			append_dev(div3, t22);
    			append_dev(div3, t23);
    			append_dev(div3, br7);
    			append_dev(div3, t24);
    			append_dev(div3, t25);
    			append_dev(div3, t26);
    			append_dev(div3, br8);
    			append_dev(div3, t27);
    			append_dev(div3, t28);
    			append_dev(div3, t29);
    			append_dev(div3, br9);
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*$fightplayerHuman*/ 2 && t2_value !== (t2_value = /*$fightplayerHuman*/ ctx[1].fighthealth + "")) set_data_dev(t2, t2_value);
    			if (dirty & /*$fightplayerHuman*/ 2 && t5_value !== (t5_value = /*$fightplayerHuman*/ ctx[1].fightstamina + "")) set_data_dev(t5, t5_value);

    			if (dirty & /*$fightplayerHuman*/ 2 && t8_value !== (t8_value = (/*$fightplayerHuman*/ ctx[1].fightisBlocking
    			? 'Blocking'
    			: '') + "")) set_data_dev(t8, t8_value);

    			if (dirty & /*$fightplayerHuman*/ 2 && t11_value !== (t11_value = /*$fightplayerHuman*/ ctx[1].fightcooldowns.attack + "")) set_data_dev(t11, t11_value);

    			if (dirty & /*$fightcurrentTurn*/ 1 && t14_value !== (t14_value = (/*$fightcurrentTurn*/ ctx[0] === 'human'
    			? "Your turn"
    			: "Computer's turn") + "")) set_data_dev(t14, t14_value);

    			if (/*$fightcurrentTurn*/ ctx[0] === 'human') {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block$7(ctx);
    					if_block.c();
    					if_block.m(div2, null);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}

    			if (dirty & /*$fightplayerComputer*/ 4 && t19_value !== (t19_value = /*$fightplayerComputer*/ ctx[2].fighthealth + "")) set_data_dev(t19, t19_value);
    			if (dirty & /*$fightplayerComputer*/ 4 && t22_value !== (t22_value = /*$fightplayerComputer*/ ctx[2].fightstamina + "")) set_data_dev(t22, t22_value);

    			if (dirty & /*$fightplayerComputer*/ 4 && t25_value !== (t25_value = (/*$fightplayerComputer*/ ctx[2].fightisBlocking
    			? 'Blocking'
    			: '') + "")) set_data_dev(t25, t25_value);

    			if (dirty & /*$fightplayerComputer*/ 4 && t28_value !== (t28_value = /*$fightplayerComputer*/ ctx[2].fightcooldowns.attack + "")) set_data_dev(t28, t28_value);
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div4);
    			if (if_block) if_block.d();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block: block_1,
    		id: create_fragment$f.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block_1;
    }

    function updatefightPlayer(player, changes) {
    	player.update(current => {
    		return { ...current, ...changes };
    	});
    }

    function instance$f($$self, $$props, $$invalidate) {
    	let $fightcurrentTurn;
    	let $fightplayerHuman;
    	let $fightplayerComputer;
    	validate_store(fightcurrentTurn, 'fightcurrentTurn');
    	component_subscribe($$self, fightcurrentTurn, $$value => $$invalidate(0, $fightcurrentTurn = $$value));
    	validate_store(fightplayerHuman, 'fightplayerHuman');
    	component_subscribe($$self, fightplayerHuman, $$value => $$invalidate(1, $fightplayerHuman = $$value));
    	validate_store(fightplayerComputer, 'fightplayerComputer');
    	component_subscribe($$self, fightplayerComputer, $$value => $$invalidate(2, $fightplayerComputer = $$value));
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotSpaceGameFight', slots, []);

    	function switchTurn() {
    		fightcurrentTurn.update(turn => turn === 'human' ? 'computer' : 'human');

    		// Immediately after switching to computer's turn, initiate the computer's action.
    		if ($fightcurrentTurn === 'computer') {
    			setTimeout(() => computerAction(), 1000); // Simulate thinking delay for the computer's turn
    		}
    	}

    	function performAttack(attacker, defender, attackType = 'normal') {
    		//fightcurrentTurn.update(turn => {
    		if ($fightcurrentTurn === 'human' && attacker === fightplayerHuman || $fightcurrentTurn === 'computer' && attacker === fightplayerComputer) {
    			// Perform attack logic here
    			attacker.update(a => {
    				if (a.fightstamina < 20 || a.fightcooldowns.attack > 0) {
    					return a; // Not enough stamina or attack is on cooldown
    				}

    				defender.update(d => {
    					if (!d.fightisBlocking) {
    						d.fighthealth -= attackType === 'normal' ? 10 : 25; // Special attack does more damage
    					}

    					return d;
    				});

    				return {
    					...a,
    					fightstamina: a.fightstamina - 20,
    					fightcooldowns: {
    						...a.fightcooldowns,
    						attack: attackType === 'normal' ? 1 : 3
    					}, // Cooldown in seconds
    					
    				};
    			});

    			// Start cooldown timer
    			setTimeout(
    				() => {
    					attacker.update(a => {
    						return {
    							...a,
    							fightcooldowns: { ...a.fightcooldowns, attack: 0 }
    						};
    					});
    				},
    				attackType === 'normal' ? 1000 : 3000
    			); // Cooldown period
    		}

    		switchTurn();
    	}

    	function block(player) {
    		if ($fightcurrentTurn === 'human' && player === fightplayerHuman || $fightcurrentTurn === 'computer' && player === fightplayerComputer) {
    			// Perform block logic here
    			updatefightPlayer(player, { fightisBlocking: true });

    			setTimeout(
    				() => {
    					updatefightPlayer(player, { fightisBlocking: false });
    				},
    				1000
    			); // Unblock after 1 second
    		}

    		switchTurn();
    	}

    	function computerAction() {
    		// Simple AI: Choose to attack or block randomly
    		const action = Math.random() > 0.4 ? 'attack' : 'block';

    		if (action === 'attack') {
    			performAttack(fightplayerComputer, fightplayerHuman);
    		} else {
    			block(fightplayerComputer);
    		}
    	} //switchTurn(); // Return control to the human player

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<MovingDotSpaceGameFight> was created with unknown prop '${key}'`);
    	});

    	const click_handler = () => performAttack(fightplayerHuman, fightplayerComputer);
    	const click_handler_1 = () => performAttack(fightplayerHuman, fightplayerComputer, 'special');
    	const click_handler_2 = () => block(fightplayerHuman);

    	$$self.$capture_state = () => ({
    		fightplayerHuman,
    		fightplayerComputer,
    		fightcurrentTurn,
    		switchTurn,
    		updatefightPlayer,
    		performAttack,
    		block,
    		computerAction,
    		$fightcurrentTurn,
    		$fightplayerHuman,
    		$fightplayerComputer
    	});

    	return [
    		$fightcurrentTurn,
    		$fightplayerHuman,
    		$fightplayerComputer,
    		performAttack,
    		block,
    		click_handler,
    		click_handler_1,
    		click_handler_2
    	];
    }

    class MovingDotSpaceGameFight extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$f, create_fragment$f, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotSpaceGameFight",
    			options,
    			id: create_fragment$f.name
    		});
    	}
    }

    /**
     * @license
     * Copyright 2010-2022 Three.js Authors
     * SPDX-License-Identifier: MIT
     */
    const REVISION = '145';
    const MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2, ROTATE: 0, DOLLY: 1, PAN: 2 };
    const TOUCH = { ROTATE: 0, PAN: 1, DOLLY_PAN: 2, DOLLY_ROTATE: 3 };
    const CullFaceNone = 0;
    const CullFaceBack = 1;
    const CullFaceFront = 2;
    const CullFaceFrontBack = 3;
    const BasicShadowMap = 0;
    const PCFShadowMap = 1;
    const PCFSoftShadowMap = 2;
    const VSMShadowMap = 3;
    const FrontSide = 0;
    const BackSide = 1;
    const DoubleSide = 2;
    const NoBlending = 0;
    const NormalBlending = 1;
    const AdditiveBlending = 2;
    const SubtractiveBlending = 3;
    const MultiplyBlending = 4;
    const CustomBlending = 5;
    const AddEquation = 100;
    const SubtractEquation = 101;
    const ReverseSubtractEquation = 102;
    const MinEquation = 103;
    const MaxEquation = 104;
    const ZeroFactor = 200;
    const OneFactor = 201;
    const SrcColorFactor = 202;
    const OneMinusSrcColorFactor = 203;
    const SrcAlphaFactor = 204;
    const OneMinusSrcAlphaFactor = 205;
    const DstAlphaFactor = 206;
    const OneMinusDstAlphaFactor = 207;
    const DstColorFactor = 208;
    const OneMinusDstColorFactor = 209;
    const SrcAlphaSaturateFactor = 210;
    const NeverDepth = 0;
    const AlwaysDepth = 1;
    const LessDepth = 2;
    const LessEqualDepth = 3;
    const EqualDepth = 4;
    const GreaterEqualDepth = 5;
    const GreaterDepth = 6;
    const NotEqualDepth = 7;
    const MultiplyOperation = 0;
    const MixOperation = 1;
    const AddOperation = 2;
    const NoToneMapping = 0;
    const LinearToneMapping = 1;
    const ReinhardToneMapping = 2;
    const CineonToneMapping = 3;
    const ACESFilmicToneMapping = 4;
    const CustomToneMapping = 5;

    const UVMapping = 300;
    const CubeReflectionMapping = 301;
    const CubeRefractionMapping = 302;
    const EquirectangularReflectionMapping = 303;
    const EquirectangularRefractionMapping = 304;
    const CubeUVReflectionMapping = 306;
    const RepeatWrapping = 1000;
    const ClampToEdgeWrapping = 1001;
    const MirroredRepeatWrapping = 1002;
    const NearestFilter = 1003;
    const NearestMipmapNearestFilter = 1004;
    const NearestMipMapNearestFilter = 1004;
    const NearestMipmapLinearFilter = 1005;
    const NearestMipMapLinearFilter = 1005;
    const LinearFilter = 1006;
    const LinearMipmapNearestFilter = 1007;
    const LinearMipMapNearestFilter = 1007;
    const LinearMipmapLinearFilter = 1008;
    const LinearMipMapLinearFilter = 1008;
    const UnsignedByteType = 1009;
    const ByteType = 1010;
    const ShortType = 1011;
    const UnsignedShortType = 1012;
    const IntType = 1013;
    const UnsignedIntType = 1014;
    const FloatType = 1015;
    const HalfFloatType = 1016;
    const UnsignedShort4444Type = 1017;
    const UnsignedShort5551Type = 1018;
    const UnsignedInt248Type = 1020;
    const AlphaFormat = 1021;
    const RGBFormat = 1022; // @deprecated since r137
    const RGBAFormat = 1023;
    const LuminanceFormat = 1024;
    const LuminanceAlphaFormat = 1025;
    const DepthFormat = 1026;
    const DepthStencilFormat = 1027;
    const RedFormat = 1028;
    const RedIntegerFormat = 1029;
    const RGFormat = 1030;
    const RGIntegerFormat = 1031;
    const RGBAIntegerFormat = 1033;

    const RGB_S3TC_DXT1_Format = 33776;
    const RGBA_S3TC_DXT1_Format = 33777;
    const RGBA_S3TC_DXT3_Format = 33778;
    const RGBA_S3TC_DXT5_Format = 33779;
    const RGB_PVRTC_4BPPV1_Format = 35840;
    const RGB_PVRTC_2BPPV1_Format = 35841;
    const RGBA_PVRTC_4BPPV1_Format = 35842;
    const RGBA_PVRTC_2BPPV1_Format = 35843;
    const RGB_ETC1_Format = 36196;
    const RGB_ETC2_Format = 37492;
    const RGBA_ETC2_EAC_Format = 37496;
    const RGBA_ASTC_4x4_Format = 37808;
    const RGBA_ASTC_5x4_Format = 37809;
    const RGBA_ASTC_5x5_Format = 37810;
    const RGBA_ASTC_6x5_Format = 37811;
    const RGBA_ASTC_6x6_Format = 37812;
    const RGBA_ASTC_8x5_Format = 37813;
    const RGBA_ASTC_8x6_Format = 37814;
    const RGBA_ASTC_8x8_Format = 37815;
    const RGBA_ASTC_10x5_Format = 37816;
    const RGBA_ASTC_10x6_Format = 37817;
    const RGBA_ASTC_10x8_Format = 37818;
    const RGBA_ASTC_10x10_Format = 37819;
    const RGBA_ASTC_12x10_Format = 37820;
    const RGBA_ASTC_12x12_Format = 37821;
    const RGBA_BPTC_Format = 36492;
    const LoopOnce = 2200;
    const LoopRepeat = 2201;
    const LoopPingPong = 2202;
    const InterpolateDiscrete = 2300;
    const InterpolateLinear = 2301;
    const InterpolateSmooth = 2302;
    const ZeroCurvatureEnding = 2400;
    const ZeroSlopeEnding = 2401;
    const WrapAroundEnding = 2402;
    const NormalAnimationBlendMode = 2500;
    const AdditiveAnimationBlendMode = 2501;
    const TrianglesDrawMode = 0;
    const TriangleStripDrawMode = 1;
    const TriangleFanDrawMode = 2;
    const LinearEncoding = 3000;
    const sRGBEncoding = 3001;
    const BasicDepthPacking = 3200;
    const RGBADepthPacking = 3201;
    const TangentSpaceNormalMap = 0;
    const ObjectSpaceNormalMap = 1;

    // Color space string identifiers, matching CSS Color Module Level 4 and WebGPU names where available.
    const NoColorSpace = '';
    const SRGBColorSpace = 'srgb';
    const LinearSRGBColorSpace = 'srgb-linear';

    const ZeroStencilOp = 0;
    const KeepStencilOp = 7680;
    const ReplaceStencilOp = 7681;
    const IncrementStencilOp = 7682;
    const DecrementStencilOp = 7683;
    const IncrementWrapStencilOp = 34055;
    const DecrementWrapStencilOp = 34056;
    const InvertStencilOp = 5386;

    const NeverStencilFunc = 512;
    const LessStencilFunc = 513;
    const EqualStencilFunc = 514;
    const LessEqualStencilFunc = 515;
    const GreaterStencilFunc = 516;
    const NotEqualStencilFunc = 517;
    const GreaterEqualStencilFunc = 518;
    const AlwaysStencilFunc = 519;

    const StaticDrawUsage = 35044;
    const DynamicDrawUsage = 35048;
    const StreamDrawUsage = 35040;
    const StaticReadUsage = 35045;
    const DynamicReadUsage = 35049;
    const StreamReadUsage = 35041;
    const StaticCopyUsage = 35046;
    const DynamicCopyUsage = 35050;
    const StreamCopyUsage = 35042;

    const GLSL1 = '100';
    const GLSL3 = '300 es';

    const _SRGBAFormat = 1035; // fallback for WebGL 1

    /**
     * https://github.com/mrdoob/eventdispatcher.js/
     */

    class EventDispatcher {

    	addEventListener( type, listener ) {

    		if ( this._listeners === undefined ) this._listeners = {};

    		const listeners = this._listeners;

    		if ( listeners[ type ] === undefined ) {

    			listeners[ type ] = [];

    		}

    		if ( listeners[ type ].indexOf( listener ) === - 1 ) {

    			listeners[ type ].push( listener );

    		}

    	}

    	hasEventListener( type, listener ) {

    		if ( this._listeners === undefined ) return false;

    		const listeners = this._listeners;

    		return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;

    	}

    	removeEventListener( type, listener ) {

    		if ( this._listeners === undefined ) return;

    		const listeners = this._listeners;
    		const listenerArray = listeners[ type ];

    		if ( listenerArray !== undefined ) {

    			const index = listenerArray.indexOf( listener );

    			if ( index !== - 1 ) {

    				listenerArray.splice( index, 1 );

    			}

    		}

    	}

    	dispatchEvent( event ) {

    		if ( this._listeners === undefined ) return;

    		const listeners = this._listeners;
    		const listenerArray = listeners[ event.type ];

    		if ( listenerArray !== undefined ) {

    			event.target = this;

    			// Make a copy, in case listeners are removed while iterating.
    			const array = listenerArray.slice( 0 );

    			for ( let i = 0, l = array.length; i < l; i ++ ) {

    				array[ i ].call( this, event );

    			}

    			event.target = null;

    		}

    	}

    }

    const _lut = [ '00', '01', '02', '03', '04', '05', '06', '07', '08', '09', '0a', '0b', '0c', '0d', '0e', '0f', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '1a', '1b', '1c', '1d', '1e', '1f', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '2a', '2b', '2c', '2d', '2e', '2f', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '3a', '3b', '3c', '3d', '3e', '3f', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '4a', '4b', '4c', '4d', '4e', '4f', '50', '51', '52', '53', '54', '55', '56', '57', '58', '59', '5a', '5b', '5c', '5d', '5e', '5f', '60', '61', '62', '63', '64', '65', '66', '67', '68', '69', '6a', '6b', '6c', '6d', '6e', '6f', '70', '71', '72', '73', '74', '75', '76', '77', '78', '79', '7a', '7b', '7c', '7d', '7e', '7f', '80', '81', '82', '83', '84', '85', '86', '87', '88', '89', '8a', '8b', '8c', '8d', '8e', '8f', '90', '91', '92', '93', '94', '95', '96', '97', '98', '99', '9a', '9b', '9c', '9d', '9e', '9f', 'a0', 'a1', 'a2', 'a3', 'a4', 'a5', 'a6', 'a7', 'a8', 'a9', 'aa', 'ab', 'ac', 'ad', 'ae', 'af', 'b0', 'b1', 'b2', 'b3', 'b4', 'b5', 'b6', 'b7', 'b8', 'b9', 'ba', 'bb', 'bc', 'bd', 'be', 'bf', 'c0', 'c1', 'c2', 'c3', 'c4', 'c5', 'c6', 'c7', 'c8', 'c9', 'ca', 'cb', 'cc', 'cd', 'ce', 'cf', 'd0', 'd1', 'd2', 'd3', 'd4', 'd5', 'd6', 'd7', 'd8', 'd9', 'da', 'db', 'dc', 'dd', 'de', 'df', 'e0', 'e1', 'e2', 'e3', 'e4', 'e5', 'e6', 'e7', 'e8', 'e9', 'ea', 'eb', 'ec', 'ed', 'ee', 'ef', 'f0', 'f1', 'f2', 'f3', 'f4', 'f5', 'f6', 'f7', 'f8', 'f9', 'fa', 'fb', 'fc', 'fd', 'fe', 'ff' ];

    let _seed = 1234567;


    const DEG2RAD = Math.PI / 180;
    const RAD2DEG = 180 / Math.PI;

    // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
    function generateUUID() {

    	const d0 = Math.random() * 0xffffffff | 0;
    	const d1 = Math.random() * 0xffffffff | 0;
    	const d2 = Math.random() * 0xffffffff | 0;
    	const d3 = Math.random() * 0xffffffff | 0;
    	const uuid = _lut[ d0 & 0xff ] + _lut[ d0 >> 8 & 0xff ] + _lut[ d0 >> 16 & 0xff ] + _lut[ d0 >> 24 & 0xff ] + '-' +
    			_lut[ d1 & 0xff ] + _lut[ d1 >> 8 & 0xff ] + '-' + _lut[ d1 >> 16 & 0x0f | 0x40 ] + _lut[ d1 >> 24 & 0xff ] + '-' +
    			_lut[ d2 & 0x3f | 0x80 ] + _lut[ d2 >> 8 & 0xff ] + '-' + _lut[ d2 >> 16 & 0xff ] + _lut[ d2 >> 24 & 0xff ] +
    			_lut[ d3 & 0xff ] + _lut[ d3 >> 8 & 0xff ] + _lut[ d3 >> 16 & 0xff ] + _lut[ d3 >> 24 & 0xff ];

    	// .toLowerCase() here flattens concatenated strings to save heap memory space.
    	return uuid.toLowerCase();

    }

    function clamp( value, min, max ) {

    	return Math.max( min, Math.min( max, value ) );

    }

    // compute euclidean modulo of m % n
    // https://en.wikipedia.org/wiki/Modulo_operation
    function euclideanModulo( n, m ) {

    	return ( ( n % m ) + m ) % m;

    }

    // Linear mapping from range <a1, a2> to range <b1, b2>
    function mapLinear( x, a1, a2, b1, b2 ) {

    	return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );

    }

    // https://www.gamedev.net/tutorials/programming/general-and-gameplay-programming/inverse-lerp-a-super-useful-yet-often-overlooked-function-r5230/
    function inverseLerp( x, y, value ) {

    	if ( x !== y ) {

    		return ( value - x ) / ( y - x );

    	} else {

    		return 0;

    	}

    }

    // https://en.wikipedia.org/wiki/Linear_interpolation
    function lerp( x, y, t ) {

    	return ( 1 - t ) * x + t * y;

    }

    // http://www.rorydriscoll.com/2016/03/07/frame-rate-independent-damping-using-lerp/
    function damp( x, y, lambda, dt ) {

    	return lerp( x, y, 1 - Math.exp( - lambda * dt ) );

    }

    // https://www.desmos.com/calculator/vcsjnyz7x4
    function pingpong( x, length = 1 ) {

    	return length - Math.abs( euclideanModulo( x, length * 2 ) - length );

    }

    // http://en.wikipedia.org/wiki/Smoothstep
    function smoothstep( x, min, max ) {

    	if ( x <= min ) return 0;
    	if ( x >= max ) return 1;

    	x = ( x - min ) / ( max - min );

    	return x * x * ( 3 - 2 * x );

    }

    function smootherstep( x, min, max ) {

    	if ( x <= min ) return 0;
    	if ( x >= max ) return 1;

    	x = ( x - min ) / ( max - min );

    	return x * x * x * ( x * ( x * 6 - 15 ) + 10 );

    }

    // Random integer from <low, high> interval
    function randInt( low, high ) {

    	return low + Math.floor( Math.random() * ( high - low + 1 ) );

    }

    // Random float from <low, high> interval
    function randFloat( low, high ) {

    	return low + Math.random() * ( high - low );

    }

    // Random float from <-range/2, range/2> interval
    function randFloatSpread( range ) {

    	return range * ( 0.5 - Math.random() );

    }

    // Deterministic pseudo-random float in the interval [ 0, 1 ]
    function seededRandom( s ) {

    	if ( s !== undefined ) _seed = s;

    	// Mulberry32 generator

    	let t = _seed += 0x6D2B79F5;

    	t = Math.imul( t ^ t >>> 15, t | 1 );

    	t ^= t + Math.imul( t ^ t >>> 7, t | 61 );

    	return ( ( t ^ t >>> 14 ) >>> 0 ) / 4294967296;

    }

    function degToRad( degrees ) {

    	return degrees * DEG2RAD;

    }

    function radToDeg( radians ) {

    	return radians * RAD2DEG;

    }

    function isPowerOfTwo( value ) {

    	return ( value & ( value - 1 ) ) === 0 && value !== 0;

    }

    function ceilPowerOfTwo( value ) {

    	return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );

    }

    function floorPowerOfTwo( value ) {

    	return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );

    }

    function setQuaternionFromProperEuler( q, a, b, c, order ) {

    	// Intrinsic Proper Euler Angles - see https://en.wikipedia.org/wiki/Euler_angles

    	// rotations are applied to the axes in the order specified by 'order'
    	// rotation by angle 'a' is applied first, then by angle 'b', then by angle 'c'
    	// angles are in radians

    	const cos = Math.cos;
    	const sin = Math.sin;

    	const c2 = cos( b / 2 );
    	const s2 = sin( b / 2 );

    	const c13 = cos( ( a + c ) / 2 );
    	const s13 = sin( ( a + c ) / 2 );

    	const c1_3 = cos( ( a - c ) / 2 );
    	const s1_3 = sin( ( a - c ) / 2 );

    	const c3_1 = cos( ( c - a ) / 2 );
    	const s3_1 = sin( ( c - a ) / 2 );

    	switch ( order ) {

    		case 'XYX':
    			q.set( c2 * s13, s2 * c1_3, s2 * s1_3, c2 * c13 );
    			break;

    		case 'YZY':
    			q.set( s2 * s1_3, c2 * s13, s2 * c1_3, c2 * c13 );
    			break;

    		case 'ZXZ':
    			q.set( s2 * c1_3, s2 * s1_3, c2 * s13, c2 * c13 );
    			break;

    		case 'XZX':
    			q.set( c2 * s13, s2 * s3_1, s2 * c3_1, c2 * c13 );
    			break;

    		case 'YXY':
    			q.set( s2 * c3_1, c2 * s13, s2 * s3_1, c2 * c13 );
    			break;

    		case 'ZYZ':
    			q.set( s2 * s3_1, s2 * c3_1, c2 * s13, c2 * c13 );
    			break;

    		default:
    			console.warn( 'THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: ' + order );

    	}

    }

    function denormalize( value, array ) {

    	switch ( array.constructor ) {

    		case Float32Array:

    			return value;

    		case Uint16Array:

    			return value / 65535.0;

    		case Uint8Array:

    			return value / 255.0;

    		case Int16Array:

    			return Math.max( value / 32767.0, - 1.0 );

    		case Int8Array:

    			return Math.max( value / 127.0, - 1.0 );

    		default:

    			throw new Error( 'Invalid component type.' );

    	}

    }

    function normalize( value, array ) {

    	switch ( array.constructor ) {

    		case Float32Array:

    			return value;

    		case Uint16Array:

    			return Math.round( value * 65535.0 );

    		case Uint8Array:

    			return Math.round( value * 255.0 );

    		case Int16Array:

    			return Math.round( value * 32767.0 );

    		case Int8Array:

    			return Math.round( value * 127.0 );

    		default:

    			throw new Error( 'Invalid component type.' );

    	}

    }

    var MathUtils = /*#__PURE__*/Object.freeze({
    	__proto__: null,
    	DEG2RAD: DEG2RAD,
    	RAD2DEG: RAD2DEG,
    	generateUUID: generateUUID,
    	clamp: clamp,
    	euclideanModulo: euclideanModulo,
    	mapLinear: mapLinear,
    	inverseLerp: inverseLerp,
    	lerp: lerp,
    	damp: damp,
    	pingpong: pingpong,
    	smoothstep: smoothstep,
    	smootherstep: smootherstep,
    	randInt: randInt,
    	randFloat: randFloat,
    	randFloatSpread: randFloatSpread,
    	seededRandom: seededRandom,
    	degToRad: degToRad,
    	radToDeg: radToDeg,
    	isPowerOfTwo: isPowerOfTwo,
    	ceilPowerOfTwo: ceilPowerOfTwo,
    	floorPowerOfTwo: floorPowerOfTwo,
    	setQuaternionFromProperEuler: setQuaternionFromProperEuler,
    	normalize: normalize,
    	denormalize: denormalize
    });

    class Vector2 {

    	constructor( x = 0, y = 0 ) {

    		Vector2.prototype.isVector2 = true;

    		this.x = x;
    		this.y = y;

    	}

    	get width() {

    		return this.x;

    	}

    	set width( value ) {

    		this.x = value;

    	}

    	get height() {

    		return this.y;

    	}

    	set height( value ) {

    		this.y = value;

    	}

    	set( x, y ) {

    		this.x = x;
    		this.y = y;

    		return this;

    	}

    	setScalar( scalar ) {

    		this.x = scalar;
    		this.y = scalar;

    		return this;

    	}

    	setX( x ) {

    		this.x = x;

    		return this;

    	}

    	setY( y ) {

    		this.y = y;

    		return this;

    	}

    	setComponent( index, value ) {

    		switch ( index ) {

    			case 0: this.x = value; break;
    			case 1: this.y = value; break;
    			default: throw new Error( 'index is out of range: ' + index );

    		}

    		return this;

    	}

    	getComponent( index ) {

    		switch ( index ) {

    			case 0: return this.x;
    			case 1: return this.y;
    			default: throw new Error( 'index is out of range: ' + index );

    		}

    	}

    	clone() {

    		return new this.constructor( this.x, this.y );

    	}

    	copy( v ) {

    		this.x = v.x;
    		this.y = v.y;

    		return this;

    	}

    	add( v ) {

    		this.x += v.x;
    		this.y += v.y;

    		return this;

    	}

    	addScalar( s ) {

    		this.x += s;
    		this.y += s;

    		return this;

    	}

    	addVectors( a, b ) {

    		this.x = a.x + b.x;
    		this.y = a.y + b.y;

    		return this;

    	}

    	addScaledVector( v, s ) {

    		this.x += v.x * s;
    		this.y += v.y * s;

    		return this;

    	}

    	sub( v ) {

    		this.x -= v.x;
    		this.y -= v.y;

    		return this;

    	}

    	subScalar( s ) {

    		this.x -= s;
    		this.y -= s;

    		return this;

    	}

    	subVectors( a, b ) {

    		this.x = a.x - b.x;
    		this.y = a.y - b.y;

    		return this;

    	}

    	multiply( v ) {

    		this.x *= v.x;
    		this.y *= v.y;

    		return this;

    	}

    	multiplyScalar( scalar ) {

    		this.x *= scalar;
    		this.y *= scalar;

    		return this;

    	}

    	divide( v ) {

    		this.x /= v.x;
    		this.y /= v.y;

    		return this;

    	}

    	divideScalar( scalar ) {

    		return this.multiplyScalar( 1 / scalar );

    	}

    	applyMatrix3( m ) {

    		const x = this.x, y = this.y;
    		const e = m.elements;

    		this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];
    		this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];

    		return this;

    	}

    	min( v ) {

    		this.x = Math.min( this.x, v.x );
    		this.y = Math.min( this.y, v.y );

    		return this;

    	}

    	max( v ) {

    		this.x = Math.max( this.x, v.x );
    		this.y = Math.max( this.y, v.y );

    		return this;

    	}

    	clamp( min, max ) {

    		// assumes min < max, componentwise

    		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
    		this.y = Math.max( min.y, Math.min( max.y, this.y ) );

    		return this;

    	}

    	clampScalar( minVal, maxVal ) {

    		this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
    		this.y = Math.max( minVal, Math.min( maxVal, this.y ) );

    		return this;

    	}

    	clampLength( min, max ) {

    		const length = this.length();

    		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

    	}

    	floor() {

    		this.x = Math.floor( this.x );
    		this.y = Math.floor( this.y );

    		return this;

    	}

    	ceil() {

    		this.x = Math.ceil( this.x );
    		this.y = Math.ceil( this.y );

    		return this;

    	}

    	round() {

    		this.x = Math.round( this.x );
    		this.y = Math.round( this.y );

    		return this;

    	}

    	roundToZero() {

    		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
    		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );

    		return this;

    	}

    	negate() {

    		this.x = - this.x;
    		this.y = - this.y;

    		return this;

    	}

    	dot( v ) {

    		return this.x * v.x + this.y * v.y;

    	}

    	cross( v ) {

    		return this.x * v.y - this.y * v.x;

    	}

    	lengthSq() {

    		return this.x * this.x + this.y * this.y;

    	}

    	length() {

    		return Math.sqrt( this.x * this.x + this.y * this.y );

    	}

    	manhattanLength() {

    		return Math.abs( this.x ) + Math.abs( this.y );

    	}

    	normalize() {

    		return this.divideScalar( this.length() || 1 );

    	}

    	angle() {

    		// computes the angle in radians with respect to the positive x-axis

    		const angle = Math.atan2( - this.y, - this.x ) + Math.PI;

    		return angle;

    	}

    	distanceTo( v ) {

    		return Math.sqrt( this.distanceToSquared( v ) );

    	}

    	distanceToSquared( v ) {

    		const dx = this.x - v.x, dy = this.y - v.y;
    		return dx * dx + dy * dy;

    	}

    	manhattanDistanceTo( v ) {

    		return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );

    	}

    	setLength( length ) {

    		return this.normalize().multiplyScalar( length );

    	}

    	lerp( v, alpha ) {

    		this.x += ( v.x - this.x ) * alpha;
    		this.y += ( v.y - this.y ) * alpha;

    		return this;

    	}

    	lerpVectors( v1, v2, alpha ) {

    		this.x = v1.x + ( v2.x - v1.x ) * alpha;
    		this.y = v1.y + ( v2.y - v1.y ) * alpha;

    		return this;

    	}

    	equals( v ) {

    		return ( ( v.x === this.x ) && ( v.y === this.y ) );

    	}

    	fromArray( array, offset = 0 ) {

    		this.x = array[ offset ];
    		this.y = array[ offset + 1 ];

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		array[ offset ] = this.x;
    		array[ offset + 1 ] = this.y;

    		return array;

    	}

    	fromBufferAttribute( attribute, index ) {

    		this.x = attribute.getX( index );
    		this.y = attribute.getY( index );

    		return this;

    	}

    	rotateAround( center, angle ) {

    		const c = Math.cos( angle ), s = Math.sin( angle );

    		const x = this.x - center.x;
    		const y = this.y - center.y;

    		this.x = x * c - y * s + center.x;
    		this.y = x * s + y * c + center.y;

    		return this;

    	}

    	random() {

    		this.x = Math.random();
    		this.y = Math.random();

    		return this;

    	}

    	*[ Symbol.iterator ]() {

    		yield this.x;
    		yield this.y;

    	}

    }

    class Matrix3 {

    	constructor() {

    		Matrix3.prototype.isMatrix3 = true;

    		this.elements = [

    			1, 0, 0,
    			0, 1, 0,
    			0, 0, 1

    		];

    	}

    	set( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {

    		const te = this.elements;

    		te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;
    		te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;
    		te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;

    		return this;

    	}

    	identity() {

    		this.set(

    			1, 0, 0,
    			0, 1, 0,
    			0, 0, 1

    		);

    		return this;

    	}

    	copy( m ) {

    		const te = this.elements;
    		const me = m.elements;

    		te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];
    		te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];
    		te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];

    		return this;

    	}

    	extractBasis( xAxis, yAxis, zAxis ) {

    		xAxis.setFromMatrix3Column( this, 0 );
    		yAxis.setFromMatrix3Column( this, 1 );
    		zAxis.setFromMatrix3Column( this, 2 );

    		return this;

    	}

    	setFromMatrix4( m ) {

    		const me = m.elements;

    		this.set(

    			me[ 0 ], me[ 4 ], me[ 8 ],
    			me[ 1 ], me[ 5 ], me[ 9 ],
    			me[ 2 ], me[ 6 ], me[ 10 ]

    		);

    		return this;

    	}

    	multiply( m ) {

    		return this.multiplyMatrices( this, m );

    	}

    	premultiply( m ) {

    		return this.multiplyMatrices( m, this );

    	}

    	multiplyMatrices( a, b ) {

    		const ae = a.elements;
    		const be = b.elements;
    		const te = this.elements;

    		const a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];
    		const a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];
    		const a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];

    		const b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];
    		const b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];
    		const b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];

    		te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;
    		te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;
    		te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;

    		te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;
    		te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;
    		te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;

    		te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;
    		te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;
    		te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;

    		return this;

    	}

    	multiplyScalar( s ) {

    		const te = this.elements;

    		te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
    		te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
    		te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;

    		return this;

    	}

    	determinant() {

    		const te = this.elements;

    		const a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
    			d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
    			g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];

    		return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;

    	}

    	invert() {

    		const te = this.elements,

    			n11 = te[ 0 ], n21 = te[ 1 ], n31 = te[ 2 ],
    			n12 = te[ 3 ], n22 = te[ 4 ], n32 = te[ 5 ],
    			n13 = te[ 6 ], n23 = te[ 7 ], n33 = te[ 8 ],

    			t11 = n33 * n22 - n32 * n23,
    			t12 = n32 * n13 - n33 * n12,
    			t13 = n23 * n12 - n22 * n13,

    			det = n11 * t11 + n21 * t12 + n31 * t13;

    		if ( det === 0 ) return this.set( 0, 0, 0, 0, 0, 0, 0, 0, 0 );

    		const detInv = 1 / det;

    		te[ 0 ] = t11 * detInv;
    		te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;
    		te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;

    		te[ 3 ] = t12 * detInv;
    		te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;
    		te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;

    		te[ 6 ] = t13 * detInv;
    		te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;
    		te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;

    		return this;

    	}

    	transpose() {

    		let tmp;
    		const m = this.elements;

    		tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
    		tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
    		tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;

    		return this;

    	}

    	getNormalMatrix( matrix4 ) {

    		return this.setFromMatrix4( matrix4 ).invert().transpose();

    	}

    	transposeIntoArray( r ) {

    		const m = this.elements;

    		r[ 0 ] = m[ 0 ];
    		r[ 1 ] = m[ 3 ];
    		r[ 2 ] = m[ 6 ];
    		r[ 3 ] = m[ 1 ];
    		r[ 4 ] = m[ 4 ];
    		r[ 5 ] = m[ 7 ];
    		r[ 6 ] = m[ 2 ];
    		r[ 7 ] = m[ 5 ];
    		r[ 8 ] = m[ 8 ];

    		return this;

    	}

    	setUvTransform( tx, ty, sx, sy, rotation, cx, cy ) {

    		const c = Math.cos( rotation );
    		const s = Math.sin( rotation );

    		this.set(
    			sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,
    			- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,
    			0, 0, 1
    		);

    		return this;

    	}

    	scale( sx, sy ) {

    		const te = this.elements;

    		te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;
    		te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;

    		return this;

    	}

    	rotate( theta ) {

    		const c = Math.cos( theta );
    		const s = Math.sin( theta );

    		const te = this.elements;

    		const a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];
    		const a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];

    		te[ 0 ] = c * a11 + s * a21;
    		te[ 3 ] = c * a12 + s * a22;
    		te[ 6 ] = c * a13 + s * a23;

    		te[ 1 ] = - s * a11 + c * a21;
    		te[ 4 ] = - s * a12 + c * a22;
    		te[ 7 ] = - s * a13 + c * a23;

    		return this;

    	}

    	translate( tx, ty ) {

    		const te = this.elements;

    		te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];
    		te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];

    		return this;

    	}

    	equals( matrix ) {

    		const te = this.elements;
    		const me = matrix.elements;

    		for ( let i = 0; i < 9; i ++ ) {

    			if ( te[ i ] !== me[ i ] ) return false;

    		}

    		return true;

    	}

    	fromArray( array, offset = 0 ) {

    		for ( let i = 0; i < 9; i ++ ) {

    			this.elements[ i ] = array[ i + offset ];

    		}

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		const te = this.elements;

    		array[ offset ] = te[ 0 ];
    		array[ offset + 1 ] = te[ 1 ];
    		array[ offset + 2 ] = te[ 2 ];

    		array[ offset + 3 ] = te[ 3 ];
    		array[ offset + 4 ] = te[ 4 ];
    		array[ offset + 5 ] = te[ 5 ];

    		array[ offset + 6 ] = te[ 6 ];
    		array[ offset + 7 ] = te[ 7 ];
    		array[ offset + 8 ] = te[ 8 ];

    		return array;

    	}

    	clone() {

    		return new this.constructor().fromArray( this.elements );

    	}

    }

    function arrayNeedsUint32( array ) {

    	// assumes larger values usually on last

    	for ( let i = array.length - 1; i >= 0; -- i ) {

    		if ( array[ i ] >= 65535 ) return true; // account for PRIMITIVE_RESTART_FIXED_INDEX, #24565

    	}

    	return false;

    }

    const TYPED_ARRAYS = {
    	Int8Array: Int8Array,
    	Uint8Array: Uint8Array,
    	Uint8ClampedArray: Uint8ClampedArray,
    	Int16Array: Int16Array,
    	Uint16Array: Uint16Array,
    	Int32Array: Int32Array,
    	Uint32Array: Uint32Array,
    	Float32Array: Float32Array,
    	Float64Array: Float64Array
    };

    function getTypedArray( type, buffer ) {

    	return new TYPED_ARRAYS[ type ]( buffer );

    }

    function createElementNS( name ) {

    	return document.createElementNS( 'http://www.w3.org/1999/xhtml', name );

    }

    function SRGBToLinear( c ) {

    	return ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 );

    }

    function LinearToSRGB( c ) {

    	return ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055;

    }

    // JavaScript RGB-to-RGB transforms, defined as
    // FN[InputColorSpace][OutputColorSpace] callback functions.
    const FN = {
    	[ SRGBColorSpace ]: { [ LinearSRGBColorSpace ]: SRGBToLinear },
    	[ LinearSRGBColorSpace ]: { [ SRGBColorSpace ]: LinearToSRGB },
    };

    const ColorManagement = {

    	legacyMode: true,

    	get workingColorSpace() {

    		return LinearSRGBColorSpace;

    	},

    	set workingColorSpace( colorSpace ) {

    		console.warn( 'THREE.ColorManagement: .workingColorSpace is readonly.' );

    	},

    	convert: function ( color, sourceColorSpace, targetColorSpace ) {

    		if ( this.legacyMode || sourceColorSpace === targetColorSpace || ! sourceColorSpace || ! targetColorSpace ) {

    			return color;

    		}

    		if ( FN[ sourceColorSpace ] && FN[ sourceColorSpace ][ targetColorSpace ] !== undefined ) {

    			const fn = FN[ sourceColorSpace ][ targetColorSpace ];

    			color.r = fn( color.r );
    			color.g = fn( color.g );
    			color.b = fn( color.b );

    			return color;

    		}

    		throw new Error( 'Unsupported color space conversion.' );

    	},

    	fromWorkingColorSpace: function ( color, targetColorSpace ) {

    		return this.convert( color, this.workingColorSpace, targetColorSpace );

    	},

    	toWorkingColorSpace: function ( color, sourceColorSpace ) {

    		return this.convert( color, sourceColorSpace, this.workingColorSpace );

    	},

    };

    const _colorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
    	'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
    	'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
    	'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
    	'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
    	'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
    	'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
    	'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
    	'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
    	'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
    	'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
    	'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
    	'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
    	'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
    	'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
    	'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
    	'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
    	'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
    	'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
    	'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
    	'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
    	'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
    	'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
    	'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };

    const _rgb = { r: 0, g: 0, b: 0 };
    const _hslA = { h: 0, s: 0, l: 0 };
    const _hslB = { h: 0, s: 0, l: 0 };

    function hue2rgb( p, q, t ) {

    	if ( t < 0 ) t += 1;
    	if ( t > 1 ) t -= 1;
    	if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
    	if ( t < 1 / 2 ) return q;
    	if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
    	return p;

    }

    function toComponents( source, target ) {

    	target.r = source.r;
    	target.g = source.g;
    	target.b = source.b;

    	return target;

    }

    class Color {

    	constructor( r, g, b ) {

    		this.isColor = true;

    		this.r = 1;
    		this.g = 1;
    		this.b = 1;

    		if ( g === undefined && b === undefined ) {

    			// r is THREE.Color, hex or string
    			return this.set( r );

    		}

    		return this.setRGB( r, g, b );

    	}

    	set( value ) {

    		if ( value && value.isColor ) {

    			this.copy( value );

    		} else if ( typeof value === 'number' ) {

    			this.setHex( value );

    		} else if ( typeof value === 'string' ) {

    			this.setStyle( value );

    		}

    		return this;

    	}

    	setScalar( scalar ) {

    		this.r = scalar;
    		this.g = scalar;
    		this.b = scalar;

    		return this;

    	}

    	setHex( hex, colorSpace = SRGBColorSpace ) {

    		hex = Math.floor( hex );

    		this.r = ( hex >> 16 & 255 ) / 255;
    		this.g = ( hex >> 8 & 255 ) / 255;
    		this.b = ( hex & 255 ) / 255;

    		ColorManagement.toWorkingColorSpace( this, colorSpace );

    		return this;

    	}

    	setRGB( r, g, b, colorSpace = LinearSRGBColorSpace ) {

    		this.r = r;
    		this.g = g;
    		this.b = b;

    		ColorManagement.toWorkingColorSpace( this, colorSpace );

    		return this;

    	}

    	setHSL( h, s, l, colorSpace = LinearSRGBColorSpace ) {

    		// h,s,l ranges are in 0.0 - 1.0
    		h = euclideanModulo( h, 1 );
    		s = clamp( s, 0, 1 );
    		l = clamp( l, 0, 1 );

    		if ( s === 0 ) {

    			this.r = this.g = this.b = l;

    		} else {

    			const p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
    			const q = ( 2 * l ) - p;

    			this.r = hue2rgb( q, p, h + 1 / 3 );
    			this.g = hue2rgb( q, p, h );
    			this.b = hue2rgb( q, p, h - 1 / 3 );

    		}

    		ColorManagement.toWorkingColorSpace( this, colorSpace );

    		return this;

    	}

    	setStyle( style, colorSpace = SRGBColorSpace ) {

    		function handleAlpha( string ) {

    			if ( string === undefined ) return;

    			if ( parseFloat( string ) < 1 ) {

    				console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );

    			}

    		}


    		let m;

    		if ( m = /^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec( style ) ) {

    			// rgb / hsl

    			let color;
    			const name = m[ 1 ];
    			const components = m[ 2 ];

    			switch ( name ) {

    				case 'rgb':
    				case 'rgba':

    					if ( color = /^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) {

    						// rgb(255,0,0) rgba(255,0,0,0.5)
    						this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
    						this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
    						this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;

    						ColorManagement.toWorkingColorSpace( this, colorSpace );

    						handleAlpha( color[ 4 ] );

    						return this;

    					}

    					if ( color = /^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) {

    						// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
    						this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
    						this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
    						this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;

    						ColorManagement.toWorkingColorSpace( this, colorSpace );

    						handleAlpha( color[ 4 ] );

    						return this;

    					}

    					break;

    				case 'hsl':
    				case 'hsla':

    					if ( color = /^\s*(\d*\.?\d+)\s*,\s*(\d*\.?\d+)\%\s*,\s*(\d*\.?\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) {

    						// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
    						const h = parseFloat( color[ 1 ] ) / 360;
    						const s = parseFloat( color[ 2 ] ) / 100;
    						const l = parseFloat( color[ 3 ] ) / 100;

    						handleAlpha( color[ 4 ] );

    						return this.setHSL( h, s, l, colorSpace );

    					}

    					break;

    			}

    		} else if ( m = /^\#([A-Fa-f\d]+)$/.exec( style ) ) {

    			// hex color

    			const hex = m[ 1 ];
    			const size = hex.length;

    			if ( size === 3 ) {

    				// #ff0
    				this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
    				this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
    				this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;

    				ColorManagement.toWorkingColorSpace( this, colorSpace );

    				return this;

    			} else if ( size === 6 ) {

    				// #ff0000
    				this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
    				this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
    				this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;

    				ColorManagement.toWorkingColorSpace( this, colorSpace );

    				return this;

    			}

    		}

    		if ( style && style.length > 0 ) {

    			return this.setColorName( style, colorSpace );

    		}

    		return this;

    	}

    	setColorName( style, colorSpace = SRGBColorSpace ) {

    		// color keywords
    		const hex = _colorKeywords[ style.toLowerCase() ];

    		if ( hex !== undefined ) {

    			// red
    			this.setHex( hex, colorSpace );

    		} else {

    			// unknown color
    			console.warn( 'THREE.Color: Unknown color ' + style );

    		}

    		return this;

    	}

    	clone() {

    		return new this.constructor( this.r, this.g, this.b );

    	}

    	copy( color ) {

    		this.r = color.r;
    		this.g = color.g;
    		this.b = color.b;

    		return this;

    	}

    	copySRGBToLinear( color ) {

    		this.r = SRGBToLinear( color.r );
    		this.g = SRGBToLinear( color.g );
    		this.b = SRGBToLinear( color.b );

    		return this;

    	}

    	copyLinearToSRGB( color ) {

    		this.r = LinearToSRGB( color.r );
    		this.g = LinearToSRGB( color.g );
    		this.b = LinearToSRGB( color.b );

    		return this;

    	}

    	convertSRGBToLinear() {

    		this.copySRGBToLinear( this );

    		return this;

    	}

    	convertLinearToSRGB() {

    		this.copyLinearToSRGB( this );

    		return this;

    	}

    	getHex( colorSpace = SRGBColorSpace ) {

    		ColorManagement.fromWorkingColorSpace( toComponents( this, _rgb ), colorSpace );

    		return clamp( _rgb.r * 255, 0, 255 ) << 16 ^ clamp( _rgb.g * 255, 0, 255 ) << 8 ^ clamp( _rgb.b * 255, 0, 255 ) << 0;

    	}

    	getHexString( colorSpace = SRGBColorSpace ) {

    		return ( '000000' + this.getHex( colorSpace ).toString( 16 ) ).slice( - 6 );

    	}

    	getHSL( target, colorSpace = LinearSRGBColorSpace ) {

    		// h,s,l ranges are in 0.0 - 1.0

    		ColorManagement.fromWorkingColorSpace( toComponents( this, _rgb ), colorSpace );

    		const r = _rgb.r, g = _rgb.g, b = _rgb.b;

    		const max = Math.max( r, g, b );
    		const min = Math.min( r, g, b );

    		let hue, saturation;
    		const lightness = ( min + max ) / 2.0;

    		if ( min === max ) {

    			hue = 0;
    			saturation = 0;

    		} else {

    			const delta = max - min;

    			saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );

    			switch ( max ) {

    				case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
    				case g: hue = ( b - r ) / delta + 2; break;
    				case b: hue = ( r - g ) / delta + 4; break;

    			}

    			hue /= 6;

    		}

    		target.h = hue;
    		target.s = saturation;
    		target.l = lightness;

    		return target;

    	}

    	getRGB( target, colorSpace = LinearSRGBColorSpace ) {

    		ColorManagement.fromWorkingColorSpace( toComponents( this, _rgb ), colorSpace );

    		target.r = _rgb.r;
    		target.g = _rgb.g;
    		target.b = _rgb.b;

    		return target;

    	}

    	getStyle( colorSpace = SRGBColorSpace ) {

    		ColorManagement.fromWorkingColorSpace( toComponents( this, _rgb ), colorSpace );

    		if ( colorSpace !== SRGBColorSpace ) {

    			// Requires CSS Color Module Level 4 (https://www.w3.org/TR/css-color-4/).
    			return `color(${ colorSpace } ${ _rgb.r } ${ _rgb.g } ${ _rgb.b })`;

    		}

    		return `rgb(${( _rgb.r * 255 ) | 0},${( _rgb.g * 255 ) | 0},${( _rgb.b * 255 ) | 0})`;

    	}

    	offsetHSL( h, s, l ) {

    		this.getHSL( _hslA );

    		_hslA.h += h; _hslA.s += s; _hslA.l += l;

    		this.setHSL( _hslA.h, _hslA.s, _hslA.l );

    		return this;

    	}

    	add( color ) {

    		this.r += color.r;
    		this.g += color.g;
    		this.b += color.b;

    		return this;

    	}

    	addColors( color1, color2 ) {

    		this.r = color1.r + color2.r;
    		this.g = color1.g + color2.g;
    		this.b = color1.b + color2.b;

    		return this;

    	}

    	addScalar( s ) {

    		this.r += s;
    		this.g += s;
    		this.b += s;

    		return this;

    	}

    	sub( color ) {

    		this.r = Math.max( 0, this.r - color.r );
    		this.g = Math.max( 0, this.g - color.g );
    		this.b = Math.max( 0, this.b - color.b );

    		return this;

    	}

    	multiply( color ) {

    		this.r *= color.r;
    		this.g *= color.g;
    		this.b *= color.b;

    		return this;

    	}

    	multiplyScalar( s ) {

    		this.r *= s;
    		this.g *= s;
    		this.b *= s;

    		return this;

    	}

    	lerp( color, alpha ) {

    		this.r += ( color.r - this.r ) * alpha;
    		this.g += ( color.g - this.g ) * alpha;
    		this.b += ( color.b - this.b ) * alpha;

    		return this;

    	}

    	lerpColors( color1, color2, alpha ) {

    		this.r = color1.r + ( color2.r - color1.r ) * alpha;
    		this.g = color1.g + ( color2.g - color1.g ) * alpha;
    		this.b = color1.b + ( color2.b - color1.b ) * alpha;

    		return this;

    	}

    	lerpHSL( color, alpha ) {

    		this.getHSL( _hslA );
    		color.getHSL( _hslB );

    		const h = lerp( _hslA.h, _hslB.h, alpha );
    		const s = lerp( _hslA.s, _hslB.s, alpha );
    		const l = lerp( _hslA.l, _hslB.l, alpha );

    		this.setHSL( h, s, l );

    		return this;

    	}

    	equals( c ) {

    		return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );

    	}

    	fromArray( array, offset = 0 ) {

    		this.r = array[ offset ];
    		this.g = array[ offset + 1 ];
    		this.b = array[ offset + 2 ];

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		array[ offset ] = this.r;
    		array[ offset + 1 ] = this.g;
    		array[ offset + 2 ] = this.b;

    		return array;

    	}

    	fromBufferAttribute( attribute, index ) {

    		this.r = attribute.getX( index );
    		this.g = attribute.getY( index );
    		this.b = attribute.getZ( index );

    		return this;

    	}

    	toJSON() {

    		return this.getHex();

    	}

    	*[ Symbol.iterator ]() {

    		yield this.r;
    		yield this.g;
    		yield this.b;

    	}

    }

    Color.NAMES = _colorKeywords;

    let _canvas;

    class ImageUtils {

    	static getDataURL( image ) {

    		if ( /^data:/i.test( image.src ) ) {

    			return image.src;

    		}

    		if ( typeof HTMLCanvasElement == 'undefined' ) {

    			return image.src;

    		}

    		let canvas;

    		if ( image instanceof HTMLCanvasElement ) {

    			canvas = image;

    		} else {

    			if ( _canvas === undefined ) _canvas = createElementNS( 'canvas' );

    			_canvas.width = image.width;
    			_canvas.height = image.height;

    			const context = _canvas.getContext( '2d' );

    			if ( image instanceof ImageData ) {

    				context.putImageData( image, 0, 0 );

    			} else {

    				context.drawImage( image, 0, 0, image.width, image.height );

    			}

    			canvas = _canvas;

    		}

    		if ( canvas.width > 2048 || canvas.height > 2048 ) {

    			console.warn( 'THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons', image );

    			return canvas.toDataURL( 'image/jpeg', 0.6 );

    		} else {

    			return canvas.toDataURL( 'image/png' );

    		}

    	}

    	static sRGBToLinear( image ) {

    		if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) ||
    			( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) ||
    			( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) {

    			const canvas = createElementNS( 'canvas' );

    			canvas.width = image.width;
    			canvas.height = image.height;

    			const context = canvas.getContext( '2d' );
    			context.drawImage( image, 0, 0, image.width, image.height );

    			const imageData = context.getImageData( 0, 0, image.width, image.height );
    			const data = imageData.data;

    			for ( let i = 0; i < data.length; i ++ ) {

    				data[ i ] = SRGBToLinear( data[ i ] / 255 ) * 255;

    			}

    			context.putImageData( imageData, 0, 0 );

    			return canvas;

    		} else if ( image.data ) {

    			const data = image.data.slice( 0 );

    			for ( let i = 0; i < data.length; i ++ ) {

    				if ( data instanceof Uint8Array || data instanceof Uint8ClampedArray ) {

    					data[ i ] = Math.floor( SRGBToLinear( data[ i ] / 255 ) * 255 );

    				} else {

    					// assuming float

    					data[ i ] = SRGBToLinear( data[ i ] );

    				}

    			}

    			return {
    				data: data,
    				width: image.width,
    				height: image.height
    			};

    		} else {

    			console.warn( 'THREE.ImageUtils.sRGBToLinear(): Unsupported image type. No color space conversion applied.' );
    			return image;

    		}

    	}

    }

    class Source {

    	constructor( data = null ) {

    		this.isSource = true;

    		this.uuid = generateUUID();

    		this.data = data;

    		this.version = 0;

    	}

    	set needsUpdate( value ) {

    		if ( value === true ) this.version ++;

    	}

    	toJSON( meta ) {

    		const isRootObject = ( meta === undefined || typeof meta === 'string' );

    		if ( ! isRootObject && meta.images[ this.uuid ] !== undefined ) {

    			return meta.images[ this.uuid ];

    		}

    		const output = {
    			uuid: this.uuid,
    			url: ''
    		};

    		const data = this.data;

    		if ( data !== null ) {

    			let url;

    			if ( Array.isArray( data ) ) {

    				// cube texture

    				url = [];

    				for ( let i = 0, l = data.length; i < l; i ++ ) {

    					if ( data[ i ].isDataTexture ) {

    						url.push( serializeImage( data[ i ].image ) );

    					} else {

    						url.push( serializeImage( data[ i ] ) );

    					}

    				}

    			} else {

    				// texture

    				url = serializeImage( data );

    			}

    			output.url = url;

    		}

    		if ( ! isRootObject ) {

    			meta.images[ this.uuid ] = output;

    		}

    		return output;

    	}

    }

    function serializeImage( image ) {

    	if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) ||
    		( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) ||
    		( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) {

    		// default images

    		return ImageUtils.getDataURL( image );

    	} else {

    		if ( image.data ) {

    			// images of DataTexture

    			return {
    				data: Array.from( image.data ),
    				width: image.width,
    				height: image.height,
    				type: image.data.constructor.name
    			};

    		} else {

    			console.warn( 'THREE.Texture: Unable to serialize Texture.' );
    			return {};

    		}

    	}

    }

    let textureId = 0;

    class Texture extends EventDispatcher {

    	constructor( image = Texture.DEFAULT_IMAGE, mapping = Texture.DEFAULT_MAPPING, wrapS = ClampToEdgeWrapping, wrapT = ClampToEdgeWrapping, magFilter = LinearFilter, minFilter = LinearMipmapLinearFilter, format = RGBAFormat, type = UnsignedByteType, anisotropy = 1, encoding = LinearEncoding ) {

    		super();

    		this.isTexture = true;

    		Object.defineProperty( this, 'id', { value: textureId ++ } );

    		this.uuid = generateUUID();

    		this.name = '';

    		this.source = new Source( image );
    		this.mipmaps = [];

    		this.mapping = mapping;

    		this.wrapS = wrapS;
    		this.wrapT = wrapT;

    		this.magFilter = magFilter;
    		this.minFilter = minFilter;

    		this.anisotropy = anisotropy;

    		this.format = format;
    		this.internalFormat = null;
    		this.type = type;

    		this.offset = new Vector2( 0, 0 );
    		this.repeat = new Vector2( 1, 1 );
    		this.center = new Vector2( 0, 0 );
    		this.rotation = 0;

    		this.matrixAutoUpdate = true;
    		this.matrix = new Matrix3();

    		this.generateMipmaps = true;
    		this.premultiplyAlpha = false;
    		this.flipY = true;
    		this.unpackAlignment = 4;	// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)

    		// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
    		//
    		// Also changing the encoding after already used by a Material will not automatically make the Material
    		// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.
    		this.encoding = encoding;

    		this.userData = {};

    		this.version = 0;
    		this.onUpdate = null;

    		this.isRenderTargetTexture = false; // indicates whether a texture belongs to a render target or not
    		this.needsPMREMUpdate = false; // indicates whether this texture should be processed by PMREMGenerator or not (only relevant for render target textures)

    	}

    	get image() {

    		return this.source.data;

    	}

    	set image( value ) {

    		this.source.data = value;

    	}

    	updateMatrix() {

    		this.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y );

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	copy( source ) {

    		this.name = source.name;

    		this.source = source.source;
    		this.mipmaps = source.mipmaps.slice( 0 );

    		this.mapping = source.mapping;

    		this.wrapS = source.wrapS;
    		this.wrapT = source.wrapT;

    		this.magFilter = source.magFilter;
    		this.minFilter = source.minFilter;

    		this.anisotropy = source.anisotropy;

    		this.format = source.format;
    		this.internalFormat = source.internalFormat;
    		this.type = source.type;

    		this.offset.copy( source.offset );
    		this.repeat.copy( source.repeat );
    		this.center.copy( source.center );
    		this.rotation = source.rotation;

    		this.matrixAutoUpdate = source.matrixAutoUpdate;
    		this.matrix.copy( source.matrix );

    		this.generateMipmaps = source.generateMipmaps;
    		this.premultiplyAlpha = source.premultiplyAlpha;
    		this.flipY = source.flipY;
    		this.unpackAlignment = source.unpackAlignment;
    		this.encoding = source.encoding;

    		this.userData = JSON.parse( JSON.stringify( source.userData ) );

    		this.needsUpdate = true;

    		return this;

    	}

    	toJSON( meta ) {

    		const isRootObject = ( meta === undefined || typeof meta === 'string' );

    		if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {

    			return meta.textures[ this.uuid ];

    		}

    		const output = {

    			metadata: {
    				version: 4.5,
    				type: 'Texture',
    				generator: 'Texture.toJSON'
    			},

    			uuid: this.uuid,
    			name: this.name,

    			image: this.source.toJSON( meta ).uuid,

    			mapping: this.mapping,

    			repeat: [ this.repeat.x, this.repeat.y ],
    			offset: [ this.offset.x, this.offset.y ],
    			center: [ this.center.x, this.center.y ],
    			rotation: this.rotation,

    			wrap: [ this.wrapS, this.wrapT ],

    			format: this.format,
    			type: this.type,
    			encoding: this.encoding,

    			minFilter: this.minFilter,
    			magFilter: this.magFilter,
    			anisotropy: this.anisotropy,

    			flipY: this.flipY,

    			premultiplyAlpha: this.premultiplyAlpha,
    			unpackAlignment: this.unpackAlignment

    		};

    		if ( JSON.stringify( this.userData ) !== '{}' ) output.userData = this.userData;

    		if ( ! isRootObject ) {

    			meta.textures[ this.uuid ] = output;

    		}

    		return output;

    	}

    	dispose() {

    		this.dispatchEvent( { type: 'dispose' } );

    	}

    	transformUv( uv ) {

    		if ( this.mapping !== UVMapping ) return uv;

    		uv.applyMatrix3( this.matrix );

    		if ( uv.x < 0 || uv.x > 1 ) {

    			switch ( this.wrapS ) {

    				case RepeatWrapping:

    					uv.x = uv.x - Math.floor( uv.x );
    					break;

    				case ClampToEdgeWrapping:

    					uv.x = uv.x < 0 ? 0 : 1;
    					break;

    				case MirroredRepeatWrapping:

    					if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {

    						uv.x = Math.ceil( uv.x ) - uv.x;

    					} else {

    						uv.x = uv.x - Math.floor( uv.x );

    					}

    					break;

    			}

    		}

    		if ( uv.y < 0 || uv.y > 1 ) {

    			switch ( this.wrapT ) {

    				case RepeatWrapping:

    					uv.y = uv.y - Math.floor( uv.y );
    					break;

    				case ClampToEdgeWrapping:

    					uv.y = uv.y < 0 ? 0 : 1;
    					break;

    				case MirroredRepeatWrapping:

    					if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {

    						uv.y = Math.ceil( uv.y ) - uv.y;

    					} else {

    						uv.y = uv.y - Math.floor( uv.y );

    					}

    					break;

    			}

    		}

    		if ( this.flipY ) {

    			uv.y = 1 - uv.y;

    		}

    		return uv;

    	}

    	set needsUpdate( value ) {

    		if ( value === true ) {

    			this.version ++;
    			this.source.needsUpdate = true;

    		}

    	}

    }

    Texture.DEFAULT_IMAGE = null;
    Texture.DEFAULT_MAPPING = UVMapping;

    class Vector4 {

    	constructor( x = 0, y = 0, z = 0, w = 1 ) {

    		Vector4.prototype.isVector4 = true;

    		this.x = x;
    		this.y = y;
    		this.z = z;
    		this.w = w;

    	}

    	get width() {

    		return this.z;

    	}

    	set width( value ) {

    		this.z = value;

    	}

    	get height() {

    		return this.w;

    	}

    	set height( value ) {

    		this.w = value;

    	}

    	set( x, y, z, w ) {

    		this.x = x;
    		this.y = y;
    		this.z = z;
    		this.w = w;

    		return this;

    	}

    	setScalar( scalar ) {

    		this.x = scalar;
    		this.y = scalar;
    		this.z = scalar;
    		this.w = scalar;

    		return this;

    	}

    	setX( x ) {

    		this.x = x;

    		return this;

    	}

    	setY( y ) {

    		this.y = y;

    		return this;

    	}

    	setZ( z ) {

    		this.z = z;

    		return this;

    	}

    	setW( w ) {

    		this.w = w;

    		return this;

    	}

    	setComponent( index, value ) {

    		switch ( index ) {

    			case 0: this.x = value; break;
    			case 1: this.y = value; break;
    			case 2: this.z = value; break;
    			case 3: this.w = value; break;
    			default: throw new Error( 'index is out of range: ' + index );

    		}

    		return this;

    	}

    	getComponent( index ) {

    		switch ( index ) {

    			case 0: return this.x;
    			case 1: return this.y;
    			case 2: return this.z;
    			case 3: return this.w;
    			default: throw new Error( 'index is out of range: ' + index );

    		}

    	}

    	clone() {

    		return new this.constructor( this.x, this.y, this.z, this.w );

    	}

    	copy( v ) {

    		this.x = v.x;
    		this.y = v.y;
    		this.z = v.z;
    		this.w = ( v.w !== undefined ) ? v.w : 1;

    		return this;

    	}

    	add( v ) {

    		this.x += v.x;
    		this.y += v.y;
    		this.z += v.z;
    		this.w += v.w;

    		return this;

    	}

    	addScalar( s ) {

    		this.x += s;
    		this.y += s;
    		this.z += s;
    		this.w += s;

    		return this;

    	}

    	addVectors( a, b ) {

    		this.x = a.x + b.x;
    		this.y = a.y + b.y;
    		this.z = a.z + b.z;
    		this.w = a.w + b.w;

    		return this;

    	}

    	addScaledVector( v, s ) {

    		this.x += v.x * s;
    		this.y += v.y * s;
    		this.z += v.z * s;
    		this.w += v.w * s;

    		return this;

    	}

    	sub( v ) {

    		this.x -= v.x;
    		this.y -= v.y;
    		this.z -= v.z;
    		this.w -= v.w;

    		return this;

    	}

    	subScalar( s ) {

    		this.x -= s;
    		this.y -= s;
    		this.z -= s;
    		this.w -= s;

    		return this;

    	}

    	subVectors( a, b ) {

    		this.x = a.x - b.x;
    		this.y = a.y - b.y;
    		this.z = a.z - b.z;
    		this.w = a.w - b.w;

    		return this;

    	}

    	multiply( v ) {

    		this.x *= v.x;
    		this.y *= v.y;
    		this.z *= v.z;
    		this.w *= v.w;

    		return this;

    	}

    	multiplyScalar( scalar ) {

    		this.x *= scalar;
    		this.y *= scalar;
    		this.z *= scalar;
    		this.w *= scalar;

    		return this;

    	}

    	applyMatrix4( m ) {

    		const x = this.x, y = this.y, z = this.z, w = this.w;
    		const e = m.elements;

    		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
    		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
    		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
    		this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;

    		return this;

    	}

    	divideScalar( scalar ) {

    		return this.multiplyScalar( 1 / scalar );

    	}

    	setAxisAngleFromQuaternion( q ) {

    		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm

    		// q is assumed to be normalized

    		this.w = 2 * Math.acos( q.w );

    		const s = Math.sqrt( 1 - q.w * q.w );

    		if ( s < 0.0001 ) {

    			this.x = 1;
    			this.y = 0;
    			this.z = 0;

    		} else {

    			this.x = q.x / s;
    			this.y = q.y / s;
    			this.z = q.z / s;

    		}

    		return this;

    	}

    	setAxisAngleFromRotationMatrix( m ) {

    		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm

    		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

    		let angle, x, y, z; // variables for result
    		const epsilon = 0.01,		// margin to allow for rounding errors
    			epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees

    			te = m.elements,

    			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
    			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
    			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

    		if ( ( Math.abs( m12 - m21 ) < epsilon ) &&
    		     ( Math.abs( m13 - m31 ) < epsilon ) &&
    		     ( Math.abs( m23 - m32 ) < epsilon ) ) {

    			// singularity found
    			// first check for identity matrix which must have +1 for all terms
    			// in leading diagonal and zero in other terms

    			if ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&
    			     ( Math.abs( m13 + m31 ) < epsilon2 ) &&
    			     ( Math.abs( m23 + m32 ) < epsilon2 ) &&
    			     ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {

    				// this singularity is identity matrix so angle = 0

    				this.set( 1, 0, 0, 0 );

    				return this; // zero angle, arbitrary axis

    			}

    			// otherwise this singularity is angle = 180

    			angle = Math.PI;

    			const xx = ( m11 + 1 ) / 2;
    			const yy = ( m22 + 1 ) / 2;
    			const zz = ( m33 + 1 ) / 2;
    			const xy = ( m12 + m21 ) / 4;
    			const xz = ( m13 + m31 ) / 4;
    			const yz = ( m23 + m32 ) / 4;

    			if ( ( xx > yy ) && ( xx > zz ) ) {

    				// m11 is the largest diagonal term

    				if ( xx < epsilon ) {

    					x = 0;
    					y = 0.707106781;
    					z = 0.707106781;

    				} else {

    					x = Math.sqrt( xx );
    					y = xy / x;
    					z = xz / x;

    				}

    			} else if ( yy > zz ) {

    				// m22 is the largest diagonal term

    				if ( yy < epsilon ) {

    					x = 0.707106781;
    					y = 0;
    					z = 0.707106781;

    				} else {

    					y = Math.sqrt( yy );
    					x = xy / y;
    					z = yz / y;

    				}

    			} else {

    				// m33 is the largest diagonal term so base result on this

    				if ( zz < epsilon ) {

    					x = 0.707106781;
    					y = 0.707106781;
    					z = 0;

    				} else {

    					z = Math.sqrt( zz );
    					x = xz / z;
    					y = yz / z;

    				}

    			}

    			this.set( x, y, z, angle );

    			return this; // return 180 deg rotation

    		}

    		// as we have reached here there are no singularities so we can handle normally

    		let s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +
    			( m13 - m31 ) * ( m13 - m31 ) +
    			( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize

    		if ( Math.abs( s ) < 0.001 ) s = 1;

    		// prevent divide by zero, should not happen if matrix is orthogonal and should be
    		// caught by singularity test above, but I've left it in just in case

    		this.x = ( m32 - m23 ) / s;
    		this.y = ( m13 - m31 ) / s;
    		this.z = ( m21 - m12 ) / s;
    		this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );

    		return this;

    	}

    	min( v ) {

    		this.x = Math.min( this.x, v.x );
    		this.y = Math.min( this.y, v.y );
    		this.z = Math.min( this.z, v.z );
    		this.w = Math.min( this.w, v.w );

    		return this;

    	}

    	max( v ) {

    		this.x = Math.max( this.x, v.x );
    		this.y = Math.max( this.y, v.y );
    		this.z = Math.max( this.z, v.z );
    		this.w = Math.max( this.w, v.w );

    		return this;

    	}

    	clamp( min, max ) {

    		// assumes min < max, componentwise

    		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
    		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
    		this.z = Math.max( min.z, Math.min( max.z, this.z ) );
    		this.w = Math.max( min.w, Math.min( max.w, this.w ) );

    		return this;

    	}

    	clampScalar( minVal, maxVal ) {

    		this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
    		this.y = Math.max( minVal, Math.min( maxVal, this.y ) );
    		this.z = Math.max( minVal, Math.min( maxVal, this.z ) );
    		this.w = Math.max( minVal, Math.min( maxVal, this.w ) );

    		return this;

    	}

    	clampLength( min, max ) {

    		const length = this.length();

    		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

    	}

    	floor() {

    		this.x = Math.floor( this.x );
    		this.y = Math.floor( this.y );
    		this.z = Math.floor( this.z );
    		this.w = Math.floor( this.w );

    		return this;

    	}

    	ceil() {

    		this.x = Math.ceil( this.x );
    		this.y = Math.ceil( this.y );
    		this.z = Math.ceil( this.z );
    		this.w = Math.ceil( this.w );

    		return this;

    	}

    	round() {

    		this.x = Math.round( this.x );
    		this.y = Math.round( this.y );
    		this.z = Math.round( this.z );
    		this.w = Math.round( this.w );

    		return this;

    	}

    	roundToZero() {

    		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
    		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
    		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
    		this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );

    		return this;

    	}

    	negate() {

    		this.x = - this.x;
    		this.y = - this.y;
    		this.z = - this.z;
    		this.w = - this.w;

    		return this;

    	}

    	dot( v ) {

    		return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;

    	}

    	lengthSq() {

    		return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;

    	}

    	length() {

    		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );

    	}

    	manhattanLength() {

    		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );

    	}

    	normalize() {

    		return this.divideScalar( this.length() || 1 );

    	}

    	setLength( length ) {

    		return this.normalize().multiplyScalar( length );

    	}

    	lerp( v, alpha ) {

    		this.x += ( v.x - this.x ) * alpha;
    		this.y += ( v.y - this.y ) * alpha;
    		this.z += ( v.z - this.z ) * alpha;
    		this.w += ( v.w - this.w ) * alpha;

    		return this;

    	}

    	lerpVectors( v1, v2, alpha ) {

    		this.x = v1.x + ( v2.x - v1.x ) * alpha;
    		this.y = v1.y + ( v2.y - v1.y ) * alpha;
    		this.z = v1.z + ( v2.z - v1.z ) * alpha;
    		this.w = v1.w + ( v2.w - v1.w ) * alpha;

    		return this;

    	}

    	equals( v ) {

    		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );

    	}

    	fromArray( array, offset = 0 ) {

    		this.x = array[ offset ];
    		this.y = array[ offset + 1 ];
    		this.z = array[ offset + 2 ];
    		this.w = array[ offset + 3 ];

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		array[ offset ] = this.x;
    		array[ offset + 1 ] = this.y;
    		array[ offset + 2 ] = this.z;
    		array[ offset + 3 ] = this.w;

    		return array;

    	}

    	fromBufferAttribute( attribute, index ) {

    		this.x = attribute.getX( index );
    		this.y = attribute.getY( index );
    		this.z = attribute.getZ( index );
    		this.w = attribute.getW( index );

    		return this;

    	}

    	random() {

    		this.x = Math.random();
    		this.y = Math.random();
    		this.z = Math.random();
    		this.w = Math.random();

    		return this;

    	}

    	*[ Symbol.iterator ]() {

    		yield this.x;
    		yield this.y;
    		yield this.z;
    		yield this.w;

    	}

    }

    /*
     In options, we can specify:
     * Texture parameters for an auto-generated target texture
     * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
    */
    class WebGLRenderTarget extends EventDispatcher {

    	constructor( width, height, options = {} ) {

    		super();

    		this.isWebGLRenderTarget = true;

    		this.width = width;
    		this.height = height;
    		this.depth = 1;

    		this.scissor = new Vector4( 0, 0, width, height );
    		this.scissorTest = false;

    		this.viewport = new Vector4( 0, 0, width, height );

    		const image = { width: width, height: height, depth: 1 };

    		this.texture = new Texture( image, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );
    		this.texture.isRenderTargetTexture = true;

    		this.texture.flipY = false;
    		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
    		this.texture.internalFormat = options.internalFormat !== undefined ? options.internalFormat : null;
    		this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;

    		this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
    		this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : false;

    		this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;

    		this.samples = options.samples !== undefined ? options.samples : 0;

    	}

    	setSize( width, height, depth = 1 ) {

    		if ( this.width !== width || this.height !== height || this.depth !== depth ) {

    			this.width = width;
    			this.height = height;
    			this.depth = depth;

    			this.texture.image.width = width;
    			this.texture.image.height = height;
    			this.texture.image.depth = depth;

    			this.dispose();

    		}

    		this.viewport.set( 0, 0, width, height );
    		this.scissor.set( 0, 0, width, height );

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	copy( source ) {

    		this.width = source.width;
    		this.height = source.height;
    		this.depth = source.depth;

    		this.viewport.copy( source.viewport );

    		this.texture = source.texture.clone();
    		this.texture.isRenderTargetTexture = true;

    		// ensure image object is not shared, see #20328

    		const image = Object.assign( {}, source.texture.image );
    		this.texture.source = new Source( image );

    		this.depthBuffer = source.depthBuffer;
    		this.stencilBuffer = source.stencilBuffer;

    		if ( source.depthTexture !== null ) this.depthTexture = source.depthTexture.clone();

    		this.samples = source.samples;

    		return this;

    	}

    	dispose() {

    		this.dispatchEvent( { type: 'dispose' } );

    	}

    }

    class DataArrayTexture extends Texture {

    	constructor( data = null, width = 1, height = 1, depth = 1 ) {

    		super( null );

    		this.isDataArrayTexture = true;

    		this.image = { data, width, height, depth };

    		this.magFilter = NearestFilter;
    		this.minFilter = NearestFilter;

    		this.wrapR = ClampToEdgeWrapping;

    		this.generateMipmaps = false;
    		this.flipY = false;
    		this.unpackAlignment = 1;

    	}

    }

    class WebGLArrayRenderTarget extends WebGLRenderTarget {

    	constructor( width, height, depth ) {

    		super( width, height );

    		this.isWebGLArrayRenderTarget = true;

    		this.depth = depth;

    		this.texture = new DataArrayTexture( null, width, height, depth );

    		this.texture.isRenderTargetTexture = true;

    	}

    }

    class Data3DTexture extends Texture {

    	constructor( data = null, width = 1, height = 1, depth = 1 ) {

    		// We're going to add .setXXX() methods for setting properties later.
    		// Users can still set in DataTexture3D directly.
    		//
    		//	const texture = new THREE.DataTexture3D( data, width, height, depth );
    		// 	texture.anisotropy = 16;
    		//
    		// See #14839

    		super( null );

    		this.isData3DTexture = true;

    		this.image = { data, width, height, depth };

    		this.magFilter = NearestFilter;
    		this.minFilter = NearestFilter;

    		this.wrapR = ClampToEdgeWrapping;

    		this.generateMipmaps = false;
    		this.flipY = false;
    		this.unpackAlignment = 1;

    	}

    }

    class WebGL3DRenderTarget extends WebGLRenderTarget {

    	constructor( width, height, depth ) {

    		super( width, height );

    		this.isWebGL3DRenderTarget = true;

    		this.depth = depth;

    		this.texture = new Data3DTexture( null, width, height, depth );

    		this.texture.isRenderTargetTexture = true;

    	}

    }

    class WebGLMultipleRenderTargets extends WebGLRenderTarget {

    	constructor( width, height, count, options = {} ) {

    		super( width, height, options );

    		this.isWebGLMultipleRenderTargets = true;

    		const texture = this.texture;

    		this.texture = [];

    		for ( let i = 0; i < count; i ++ ) {

    			this.texture[ i ] = texture.clone();
    			this.texture[ i ].isRenderTargetTexture = true;

    		}

    	}

    	setSize( width, height, depth = 1 ) {

    		if ( this.width !== width || this.height !== height || this.depth !== depth ) {

    			this.width = width;
    			this.height = height;
    			this.depth = depth;

    			for ( let i = 0, il = this.texture.length; i < il; i ++ ) {

    				this.texture[ i ].image.width = width;
    				this.texture[ i ].image.height = height;
    				this.texture[ i ].image.depth = depth;

    			}

    			this.dispose();

    		}

    		this.viewport.set( 0, 0, width, height );
    		this.scissor.set( 0, 0, width, height );

    		return this;

    	}

    	copy( source ) {

    		this.dispose();

    		this.width = source.width;
    		this.height = source.height;
    		this.depth = source.depth;

    		this.viewport.set( 0, 0, this.width, this.height );
    		this.scissor.set( 0, 0, this.width, this.height );

    		this.depthBuffer = source.depthBuffer;
    		this.stencilBuffer = source.stencilBuffer;

    		if ( source.depthTexture !== null ) this.depthTexture = source.depthTexture.clone();

    		this.texture.length = 0;

    		for ( let i = 0, il = source.texture.length; i < il; i ++ ) {

    			this.texture[ i ] = source.texture[ i ].clone();
    			this.texture[ i ].isRenderTargetTexture = true;

    		}

    		return this;

    	}

    }

    class Quaternion {

    	constructor( x = 0, y = 0, z = 0, w = 1 ) {

    		this.isQuaternion = true;

    		this._x = x;
    		this._y = y;
    		this._z = z;
    		this._w = w;

    	}

    	static slerpFlat( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {

    		// fuzz-free, array-based Quaternion SLERP operation

    		let x0 = src0[ srcOffset0 + 0 ],
    			y0 = src0[ srcOffset0 + 1 ],
    			z0 = src0[ srcOffset0 + 2 ],
    			w0 = src0[ srcOffset0 + 3 ];

    		const x1 = src1[ srcOffset1 + 0 ],
    			y1 = src1[ srcOffset1 + 1 ],
    			z1 = src1[ srcOffset1 + 2 ],
    			w1 = src1[ srcOffset1 + 3 ];

    		if ( t === 0 ) {

    			dst[ dstOffset + 0 ] = x0;
    			dst[ dstOffset + 1 ] = y0;
    			dst[ dstOffset + 2 ] = z0;
    			dst[ dstOffset + 3 ] = w0;
    			return;

    		}

    		if ( t === 1 ) {

    			dst[ dstOffset + 0 ] = x1;
    			dst[ dstOffset + 1 ] = y1;
    			dst[ dstOffset + 2 ] = z1;
    			dst[ dstOffset + 3 ] = w1;
    			return;

    		}

    		if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {

    			let s = 1 - t;
    			const cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
    				dir = ( cos >= 0 ? 1 : - 1 ),
    				sqrSin = 1 - cos * cos;

    			// Skip the Slerp for tiny steps to avoid numeric problems:
    			if ( sqrSin > Number.EPSILON ) {

    				const sin = Math.sqrt( sqrSin ),
    					len = Math.atan2( sin, cos * dir );

    				s = Math.sin( s * len ) / sin;
    				t = Math.sin( t * len ) / sin;

    			}

    			const tDir = t * dir;

    			x0 = x0 * s + x1 * tDir;
    			y0 = y0 * s + y1 * tDir;
    			z0 = z0 * s + z1 * tDir;
    			w0 = w0 * s + w1 * tDir;

    			// Normalize in case we just did a lerp:
    			if ( s === 1 - t ) {

    				const f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );

    				x0 *= f;
    				y0 *= f;
    				z0 *= f;
    				w0 *= f;

    			}

    		}

    		dst[ dstOffset ] = x0;
    		dst[ dstOffset + 1 ] = y0;
    		dst[ dstOffset + 2 ] = z0;
    		dst[ dstOffset + 3 ] = w0;

    	}

    	static multiplyQuaternionsFlat( dst, dstOffset, src0, srcOffset0, src1, srcOffset1 ) {

    		const x0 = src0[ srcOffset0 ];
    		const y0 = src0[ srcOffset0 + 1 ];
    		const z0 = src0[ srcOffset0 + 2 ];
    		const w0 = src0[ srcOffset0 + 3 ];

    		const x1 = src1[ srcOffset1 ];
    		const y1 = src1[ srcOffset1 + 1 ];
    		const z1 = src1[ srcOffset1 + 2 ];
    		const w1 = src1[ srcOffset1 + 3 ];

    		dst[ dstOffset ] = x0 * w1 + w0 * x1 + y0 * z1 - z0 * y1;
    		dst[ dstOffset + 1 ] = y0 * w1 + w0 * y1 + z0 * x1 - x0 * z1;
    		dst[ dstOffset + 2 ] = z0 * w1 + w0 * z1 + x0 * y1 - y0 * x1;
    		dst[ dstOffset + 3 ] = w0 * w1 - x0 * x1 - y0 * y1 - z0 * z1;

    		return dst;

    	}

    	get x() {

    		return this._x;

    	}

    	set x( value ) {

    		this._x = value;
    		this._onChangeCallback();

    	}

    	get y() {

    		return this._y;

    	}

    	set y( value ) {

    		this._y = value;
    		this._onChangeCallback();

    	}

    	get z() {

    		return this._z;

    	}

    	set z( value ) {

    		this._z = value;
    		this._onChangeCallback();

    	}

    	get w() {

    		return this._w;

    	}

    	set w( value ) {

    		this._w = value;
    		this._onChangeCallback();

    	}

    	set( x, y, z, w ) {

    		this._x = x;
    		this._y = y;
    		this._z = z;
    		this._w = w;

    		this._onChangeCallback();

    		return this;

    	}

    	clone() {

    		return new this.constructor( this._x, this._y, this._z, this._w );

    	}

    	copy( quaternion ) {

    		this._x = quaternion.x;
    		this._y = quaternion.y;
    		this._z = quaternion.z;
    		this._w = quaternion.w;

    		this._onChangeCallback();

    		return this;

    	}

    	setFromEuler( euler, update ) {

    		const x = euler._x, y = euler._y, z = euler._z, order = euler._order;

    		// http://www.mathworks.com/matlabcentral/fileexchange/
    		// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
    		//	content/SpinCalc.m

    		const cos = Math.cos;
    		const sin = Math.sin;

    		const c1 = cos( x / 2 );
    		const c2 = cos( y / 2 );
    		const c3 = cos( z / 2 );

    		const s1 = sin( x / 2 );
    		const s2 = sin( y / 2 );
    		const s3 = sin( z / 2 );

    		switch ( order ) {

    			case 'XYZ':
    				this._x = s1 * c2 * c3 + c1 * s2 * s3;
    				this._y = c1 * s2 * c3 - s1 * c2 * s3;
    				this._z = c1 * c2 * s3 + s1 * s2 * c3;
    				this._w = c1 * c2 * c3 - s1 * s2 * s3;
    				break;

    			case 'YXZ':
    				this._x = s1 * c2 * c3 + c1 * s2 * s3;
    				this._y = c1 * s2 * c3 - s1 * c2 * s3;
    				this._z = c1 * c2 * s3 - s1 * s2 * c3;
    				this._w = c1 * c2 * c3 + s1 * s2 * s3;
    				break;

    			case 'ZXY':
    				this._x = s1 * c2 * c3 - c1 * s2 * s3;
    				this._y = c1 * s2 * c3 + s1 * c2 * s3;
    				this._z = c1 * c2 * s3 + s1 * s2 * c3;
    				this._w = c1 * c2 * c3 - s1 * s2 * s3;
    				break;

    			case 'ZYX':
    				this._x = s1 * c2 * c3 - c1 * s2 * s3;
    				this._y = c1 * s2 * c3 + s1 * c2 * s3;
    				this._z = c1 * c2 * s3 - s1 * s2 * c3;
    				this._w = c1 * c2 * c3 + s1 * s2 * s3;
    				break;

    			case 'YZX':
    				this._x = s1 * c2 * c3 + c1 * s2 * s3;
    				this._y = c1 * s2 * c3 + s1 * c2 * s3;
    				this._z = c1 * c2 * s3 - s1 * s2 * c3;
    				this._w = c1 * c2 * c3 - s1 * s2 * s3;
    				break;

    			case 'XZY':
    				this._x = s1 * c2 * c3 - c1 * s2 * s3;
    				this._y = c1 * s2 * c3 - s1 * c2 * s3;
    				this._z = c1 * c2 * s3 + s1 * s2 * c3;
    				this._w = c1 * c2 * c3 + s1 * s2 * s3;
    				break;

    			default:
    				console.warn( 'THREE.Quaternion: .setFromEuler() encountered an unknown order: ' + order );

    		}

    		if ( update !== false ) this._onChangeCallback();

    		return this;

    	}

    	setFromAxisAngle( axis, angle ) {

    		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm

    		// assumes axis is normalized

    		const halfAngle = angle / 2, s = Math.sin( halfAngle );

    		this._x = axis.x * s;
    		this._y = axis.y * s;
    		this._z = axis.z * s;
    		this._w = Math.cos( halfAngle );

    		this._onChangeCallback();

    		return this;

    	}

    	setFromRotationMatrix( m ) {

    		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm

    		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

    		const te = m.elements,

    			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
    			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
    			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],

    			trace = m11 + m22 + m33;

    		if ( trace > 0 ) {

    			const s = 0.5 / Math.sqrt( trace + 1.0 );

    			this._w = 0.25 / s;
    			this._x = ( m32 - m23 ) * s;
    			this._y = ( m13 - m31 ) * s;
    			this._z = ( m21 - m12 ) * s;

    		} else if ( m11 > m22 && m11 > m33 ) {

    			const s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );

    			this._w = ( m32 - m23 ) / s;
    			this._x = 0.25 * s;
    			this._y = ( m12 + m21 ) / s;
    			this._z = ( m13 + m31 ) / s;

    		} else if ( m22 > m33 ) {

    			const s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );

    			this._w = ( m13 - m31 ) / s;
    			this._x = ( m12 + m21 ) / s;
    			this._y = 0.25 * s;
    			this._z = ( m23 + m32 ) / s;

    		} else {

    			const s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );

    			this._w = ( m21 - m12 ) / s;
    			this._x = ( m13 + m31 ) / s;
    			this._y = ( m23 + m32 ) / s;
    			this._z = 0.25 * s;

    		}

    		this._onChangeCallback();

    		return this;

    	}

    	setFromUnitVectors( vFrom, vTo ) {

    		// assumes direction vectors vFrom and vTo are normalized

    		let r = vFrom.dot( vTo ) + 1;

    		if ( r < Number.EPSILON ) {

    			// vFrom and vTo point in opposite directions

    			r = 0;

    			if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {

    				this._x = - vFrom.y;
    				this._y = vFrom.x;
    				this._z = 0;
    				this._w = r;

    			} else {

    				this._x = 0;
    				this._y = - vFrom.z;
    				this._z = vFrom.y;
    				this._w = r;

    			}

    		} else {

    			// crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3

    			this._x = vFrom.y * vTo.z - vFrom.z * vTo.y;
    			this._y = vFrom.z * vTo.x - vFrom.x * vTo.z;
    			this._z = vFrom.x * vTo.y - vFrom.y * vTo.x;
    			this._w = r;

    		}

    		return this.normalize();

    	}

    	angleTo( q ) {

    		return 2 * Math.acos( Math.abs( clamp( this.dot( q ), - 1, 1 ) ) );

    	}

    	rotateTowards( q, step ) {

    		const angle = this.angleTo( q );

    		if ( angle === 0 ) return this;

    		const t = Math.min( 1, step / angle );

    		this.slerp( q, t );

    		return this;

    	}

    	identity() {

    		return this.set( 0, 0, 0, 1 );

    	}

    	invert() {

    		// quaternion is assumed to have unit length

    		return this.conjugate();

    	}

    	conjugate() {

    		this._x *= - 1;
    		this._y *= - 1;
    		this._z *= - 1;

    		this._onChangeCallback();

    		return this;

    	}

    	dot( v ) {

    		return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;

    	}

    	lengthSq() {

    		return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;

    	}

    	length() {

    		return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );

    	}

    	normalize() {

    		let l = this.length();

    		if ( l === 0 ) {

    			this._x = 0;
    			this._y = 0;
    			this._z = 0;
    			this._w = 1;

    		} else {

    			l = 1 / l;

    			this._x = this._x * l;
    			this._y = this._y * l;
    			this._z = this._z * l;
    			this._w = this._w * l;

    		}

    		this._onChangeCallback();

    		return this;

    	}

    	multiply( q ) {

    		return this.multiplyQuaternions( this, q );

    	}

    	premultiply( q ) {

    		return this.multiplyQuaternions( q, this );

    	}

    	multiplyQuaternions( a, b ) {

    		// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm

    		const qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
    		const qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;

    		this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
    		this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
    		this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
    		this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;

    		this._onChangeCallback();

    		return this;

    	}

    	slerp( qb, t ) {

    		if ( t === 0 ) return this;
    		if ( t === 1 ) return this.copy( qb );

    		const x = this._x, y = this._y, z = this._z, w = this._w;

    		// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/

    		let cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;

    		if ( cosHalfTheta < 0 ) {

    			this._w = - qb._w;
    			this._x = - qb._x;
    			this._y = - qb._y;
    			this._z = - qb._z;

    			cosHalfTheta = - cosHalfTheta;

    		} else {

    			this.copy( qb );

    		}

    		if ( cosHalfTheta >= 1.0 ) {

    			this._w = w;
    			this._x = x;
    			this._y = y;
    			this._z = z;

    			return this;

    		}

    		const sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;

    		if ( sqrSinHalfTheta <= Number.EPSILON ) {

    			const s = 1 - t;
    			this._w = s * w + t * this._w;
    			this._x = s * x + t * this._x;
    			this._y = s * y + t * this._y;
    			this._z = s * z + t * this._z;

    			this.normalize();
    			this._onChangeCallback();

    			return this;

    		}

    		const sinHalfTheta = Math.sqrt( sqrSinHalfTheta );
    		const halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
    		const ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
    			ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;

    		this._w = ( w * ratioA + this._w * ratioB );
    		this._x = ( x * ratioA + this._x * ratioB );
    		this._y = ( y * ratioA + this._y * ratioB );
    		this._z = ( z * ratioA + this._z * ratioB );

    		this._onChangeCallback();

    		return this;

    	}

    	slerpQuaternions( qa, qb, t ) {

    		return this.copy( qa ).slerp( qb, t );

    	}

    	random() {

    		// Derived from http://planning.cs.uiuc.edu/node198.html
    		// Note, this source uses w, x, y, z ordering,
    		// so we swap the order below.

    		const u1 = Math.random();
    		const sqrt1u1 = Math.sqrt( 1 - u1 );
    		const sqrtu1 = Math.sqrt( u1 );

    		const u2 = 2 * Math.PI * Math.random();

    		const u3 = 2 * Math.PI * Math.random();

    		return this.set(
    			sqrt1u1 * Math.cos( u2 ),
    			sqrtu1 * Math.sin( u3 ),
    			sqrtu1 * Math.cos( u3 ),
    			sqrt1u1 * Math.sin( u2 ),
    		);

    	}

    	equals( quaternion ) {

    		return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );

    	}

    	fromArray( array, offset = 0 ) {

    		this._x = array[ offset ];
    		this._y = array[ offset + 1 ];
    		this._z = array[ offset + 2 ];
    		this._w = array[ offset + 3 ];

    		this._onChangeCallback();

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		array[ offset ] = this._x;
    		array[ offset + 1 ] = this._y;
    		array[ offset + 2 ] = this._z;
    		array[ offset + 3 ] = this._w;

    		return array;

    	}

    	fromBufferAttribute( attribute, index ) {

    		this._x = attribute.getX( index );
    		this._y = attribute.getY( index );
    		this._z = attribute.getZ( index );
    		this._w = attribute.getW( index );

    		return this;

    	}

    	_onChange( callback ) {

    		this._onChangeCallback = callback;

    		return this;

    	}

    	_onChangeCallback() {}

    	*[ Symbol.iterator ]() {

    		yield this._x;
    		yield this._y;
    		yield this._z;
    		yield this._w;

    	}

    }

    class Vector3 {

    	constructor( x = 0, y = 0, z = 0 ) {

    		Vector3.prototype.isVector3 = true;

    		this.x = x;
    		this.y = y;
    		this.z = z;

    	}

    	set( x, y, z ) {

    		if ( z === undefined ) z = this.z; // sprite.scale.set(x,y)

    		this.x = x;
    		this.y = y;
    		this.z = z;

    		return this;

    	}

    	setScalar( scalar ) {

    		this.x = scalar;
    		this.y = scalar;
    		this.z = scalar;

    		return this;

    	}

    	setX( x ) {

    		this.x = x;

    		return this;

    	}

    	setY( y ) {

    		this.y = y;

    		return this;

    	}

    	setZ( z ) {

    		this.z = z;

    		return this;

    	}

    	setComponent( index, value ) {

    		switch ( index ) {

    			case 0: this.x = value; break;
    			case 1: this.y = value; break;
    			case 2: this.z = value; break;
    			default: throw new Error( 'index is out of range: ' + index );

    		}

    		return this;

    	}

    	getComponent( index ) {

    		switch ( index ) {

    			case 0: return this.x;
    			case 1: return this.y;
    			case 2: return this.z;
    			default: throw new Error( 'index is out of range: ' + index );

    		}

    	}

    	clone() {

    		return new this.constructor( this.x, this.y, this.z );

    	}

    	copy( v ) {

    		this.x = v.x;
    		this.y = v.y;
    		this.z = v.z;

    		return this;

    	}

    	add( v ) {

    		this.x += v.x;
    		this.y += v.y;
    		this.z += v.z;

    		return this;

    	}

    	addScalar( s ) {

    		this.x += s;
    		this.y += s;
    		this.z += s;

    		return this;

    	}

    	addVectors( a, b ) {

    		this.x = a.x + b.x;
    		this.y = a.y + b.y;
    		this.z = a.z + b.z;

    		return this;

    	}

    	addScaledVector( v, s ) {

    		this.x += v.x * s;
    		this.y += v.y * s;
    		this.z += v.z * s;

    		return this;

    	}

    	sub( v ) {

    		this.x -= v.x;
    		this.y -= v.y;
    		this.z -= v.z;

    		return this;

    	}

    	subScalar( s ) {

    		this.x -= s;
    		this.y -= s;
    		this.z -= s;

    		return this;

    	}

    	subVectors( a, b ) {

    		this.x = a.x - b.x;
    		this.y = a.y - b.y;
    		this.z = a.z - b.z;

    		return this;

    	}

    	multiply( v ) {

    		this.x *= v.x;
    		this.y *= v.y;
    		this.z *= v.z;

    		return this;

    	}

    	multiplyScalar( scalar ) {

    		this.x *= scalar;
    		this.y *= scalar;
    		this.z *= scalar;

    		return this;

    	}

    	multiplyVectors( a, b ) {

    		this.x = a.x * b.x;
    		this.y = a.y * b.y;
    		this.z = a.z * b.z;

    		return this;

    	}

    	applyEuler( euler ) {

    		return this.applyQuaternion( _quaternion$4.setFromEuler( euler ) );

    	}

    	applyAxisAngle( axis, angle ) {

    		return this.applyQuaternion( _quaternion$4.setFromAxisAngle( axis, angle ) );

    	}

    	applyMatrix3( m ) {

    		const x = this.x, y = this.y, z = this.z;
    		const e = m.elements;

    		this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
    		this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
    		this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;

    		return this;

    	}

    	applyNormalMatrix( m ) {

    		return this.applyMatrix3( m ).normalize();

    	}

    	applyMatrix4( m ) {

    		const x = this.x, y = this.y, z = this.z;
    		const e = m.elements;

    		const w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );

    		this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;
    		this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;
    		this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;

    		return this;

    	}

    	applyQuaternion( q ) {

    		const x = this.x, y = this.y, z = this.z;
    		const qx = q.x, qy = q.y, qz = q.z, qw = q.w;

    		// calculate quat * vector

    		const ix = qw * x + qy * z - qz * y;
    		const iy = qw * y + qz * x - qx * z;
    		const iz = qw * z + qx * y - qy * x;
    		const iw = - qx * x - qy * y - qz * z;

    		// calculate result * inverse quat

    		this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
    		this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
    		this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;

    		return this;

    	}

    	project( camera ) {

    		return this.applyMatrix4( camera.matrixWorldInverse ).applyMatrix4( camera.projectionMatrix );

    	}

    	unproject( camera ) {

    		return this.applyMatrix4( camera.projectionMatrixInverse ).applyMatrix4( camera.matrixWorld );

    	}

    	transformDirection( m ) {

    		// input: THREE.Matrix4 affine matrix
    		// vector interpreted as a direction

    		const x = this.x, y = this.y, z = this.z;
    		const e = m.elements;

    		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;
    		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;
    		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;

    		return this.normalize();

    	}

    	divide( v ) {

    		this.x /= v.x;
    		this.y /= v.y;
    		this.z /= v.z;

    		return this;

    	}

    	divideScalar( scalar ) {

    		return this.multiplyScalar( 1 / scalar );

    	}

    	min( v ) {

    		this.x = Math.min( this.x, v.x );
    		this.y = Math.min( this.y, v.y );
    		this.z = Math.min( this.z, v.z );

    		return this;

    	}

    	max( v ) {

    		this.x = Math.max( this.x, v.x );
    		this.y = Math.max( this.y, v.y );
    		this.z = Math.max( this.z, v.z );

    		return this;

    	}

    	clamp( min, max ) {

    		// assumes min < max, componentwise

    		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
    		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
    		this.z = Math.max( min.z, Math.min( max.z, this.z ) );

    		return this;

    	}

    	clampScalar( minVal, maxVal ) {

    		this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
    		this.y = Math.max( minVal, Math.min( maxVal, this.y ) );
    		this.z = Math.max( minVal, Math.min( maxVal, this.z ) );

    		return this;

    	}

    	clampLength( min, max ) {

    		const length = this.length();

    		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

    	}

    	floor() {

    		this.x = Math.floor( this.x );
    		this.y = Math.floor( this.y );
    		this.z = Math.floor( this.z );

    		return this;

    	}

    	ceil() {

    		this.x = Math.ceil( this.x );
    		this.y = Math.ceil( this.y );
    		this.z = Math.ceil( this.z );

    		return this;

    	}

    	round() {

    		this.x = Math.round( this.x );
    		this.y = Math.round( this.y );
    		this.z = Math.round( this.z );

    		return this;

    	}

    	roundToZero() {

    		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
    		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
    		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );

    		return this;

    	}

    	negate() {

    		this.x = - this.x;
    		this.y = - this.y;
    		this.z = - this.z;

    		return this;

    	}

    	dot( v ) {

    		return this.x * v.x + this.y * v.y + this.z * v.z;

    	}

    	// TODO lengthSquared?

    	lengthSq() {

    		return this.x * this.x + this.y * this.y + this.z * this.z;

    	}

    	length() {

    		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );

    	}

    	manhattanLength() {

    		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );

    	}

    	normalize() {

    		return this.divideScalar( this.length() || 1 );

    	}

    	setLength( length ) {

    		return this.normalize().multiplyScalar( length );

    	}

    	lerp( v, alpha ) {

    		this.x += ( v.x - this.x ) * alpha;
    		this.y += ( v.y - this.y ) * alpha;
    		this.z += ( v.z - this.z ) * alpha;

    		return this;

    	}

    	lerpVectors( v1, v2, alpha ) {

    		this.x = v1.x + ( v2.x - v1.x ) * alpha;
    		this.y = v1.y + ( v2.y - v1.y ) * alpha;
    		this.z = v1.z + ( v2.z - v1.z ) * alpha;

    		return this;

    	}

    	cross( v ) {

    		return this.crossVectors( this, v );

    	}

    	crossVectors( a, b ) {

    		const ax = a.x, ay = a.y, az = a.z;
    		const bx = b.x, by = b.y, bz = b.z;

    		this.x = ay * bz - az * by;
    		this.y = az * bx - ax * bz;
    		this.z = ax * by - ay * bx;

    		return this;

    	}

    	projectOnVector( v ) {

    		const denominator = v.lengthSq();

    		if ( denominator === 0 ) return this.set( 0, 0, 0 );

    		const scalar = v.dot( this ) / denominator;

    		return this.copy( v ).multiplyScalar( scalar );

    	}

    	projectOnPlane( planeNormal ) {

    		_vector$c.copy( this ).projectOnVector( planeNormal );

    		return this.sub( _vector$c );

    	}

    	reflect( normal ) {

    		// reflect incident vector off plane orthogonal to normal
    		// normal is assumed to have unit length

    		return this.sub( _vector$c.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );

    	}

    	angleTo( v ) {

    		const denominator = Math.sqrt( this.lengthSq() * v.lengthSq() );

    		if ( denominator === 0 ) return Math.PI / 2;

    		const theta = this.dot( v ) / denominator;

    		// clamp, to handle numerical problems

    		return Math.acos( clamp( theta, - 1, 1 ) );

    	}

    	distanceTo( v ) {

    		return Math.sqrt( this.distanceToSquared( v ) );

    	}

    	distanceToSquared( v ) {

    		const dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;

    		return dx * dx + dy * dy + dz * dz;

    	}

    	manhattanDistanceTo( v ) {

    		return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );

    	}

    	setFromSpherical( s ) {

    		return this.setFromSphericalCoords( s.radius, s.phi, s.theta );

    	}

    	setFromSphericalCoords( radius, phi, theta ) {

    		const sinPhiRadius = Math.sin( phi ) * radius;

    		this.x = sinPhiRadius * Math.sin( theta );
    		this.y = Math.cos( phi ) * radius;
    		this.z = sinPhiRadius * Math.cos( theta );

    		return this;

    	}

    	setFromCylindrical( c ) {

    		return this.setFromCylindricalCoords( c.radius, c.theta, c.y );

    	}

    	setFromCylindricalCoords( radius, theta, y ) {

    		this.x = radius * Math.sin( theta );
    		this.y = y;
    		this.z = radius * Math.cos( theta );

    		return this;

    	}

    	setFromMatrixPosition( m ) {

    		const e = m.elements;

    		this.x = e[ 12 ];
    		this.y = e[ 13 ];
    		this.z = e[ 14 ];

    		return this;

    	}

    	setFromMatrixScale( m ) {

    		const sx = this.setFromMatrixColumn( m, 0 ).length();
    		const sy = this.setFromMatrixColumn( m, 1 ).length();
    		const sz = this.setFromMatrixColumn( m, 2 ).length();

    		this.x = sx;
    		this.y = sy;
    		this.z = sz;

    		return this;

    	}

    	setFromMatrixColumn( m, index ) {

    		return this.fromArray( m.elements, index * 4 );

    	}

    	setFromMatrix3Column( m, index ) {

    		return this.fromArray( m.elements, index * 3 );

    	}

    	setFromEuler( e ) {

    		this.x = e._x;
    		this.y = e._y;
    		this.z = e._z;

    		return this;

    	}

    	equals( v ) {

    		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );

    	}

    	fromArray( array, offset = 0 ) {

    		this.x = array[ offset ];
    		this.y = array[ offset + 1 ];
    		this.z = array[ offset + 2 ];

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		array[ offset ] = this.x;
    		array[ offset + 1 ] = this.y;
    		array[ offset + 2 ] = this.z;

    		return array;

    	}

    	fromBufferAttribute( attribute, index ) {

    		this.x = attribute.getX( index );
    		this.y = attribute.getY( index );
    		this.z = attribute.getZ( index );

    		return this;

    	}

    	random() {

    		this.x = Math.random();
    		this.y = Math.random();
    		this.z = Math.random();

    		return this;

    	}

    	randomDirection() {

    		// Derived from https://mathworld.wolfram.com/SpherePointPicking.html

    		const u = ( Math.random() - 0.5 ) * 2;
    		const t = Math.random() * Math.PI * 2;
    		const f = Math.sqrt( 1 - u ** 2 );

    		this.x = f * Math.cos( t );
    		this.y = f * Math.sin( t );
    		this.z = u;

    		return this;

    	}

    	*[ Symbol.iterator ]() {

    		yield this.x;
    		yield this.y;
    		yield this.z;

    	}

    }

    const _vector$c = /*@__PURE__*/ new Vector3();
    const _quaternion$4 = /*@__PURE__*/ new Quaternion();

    class Box3 {

    	constructor( min = new Vector3( + Infinity, + Infinity, + Infinity ), max = new Vector3( - Infinity, - Infinity, - Infinity ) ) {

    		this.isBox3 = true;

    		this.min = min;
    		this.max = max;

    	}

    	set( min, max ) {

    		this.min.copy( min );
    		this.max.copy( max );

    		return this;

    	}

    	setFromArray( array ) {

    		let minX = + Infinity;
    		let minY = + Infinity;
    		let minZ = + Infinity;

    		let maxX = - Infinity;
    		let maxY = - Infinity;
    		let maxZ = - Infinity;

    		for ( let i = 0, l = array.length; i < l; i += 3 ) {

    			const x = array[ i ];
    			const y = array[ i + 1 ];
    			const z = array[ i + 2 ];

    			if ( x < minX ) minX = x;
    			if ( y < minY ) minY = y;
    			if ( z < minZ ) minZ = z;

    			if ( x > maxX ) maxX = x;
    			if ( y > maxY ) maxY = y;
    			if ( z > maxZ ) maxZ = z;

    		}

    		this.min.set( minX, minY, minZ );
    		this.max.set( maxX, maxY, maxZ );

    		return this;

    	}

    	setFromBufferAttribute( attribute ) {

    		let minX = + Infinity;
    		let minY = + Infinity;
    		let minZ = + Infinity;

    		let maxX = - Infinity;
    		let maxY = - Infinity;
    		let maxZ = - Infinity;

    		for ( let i = 0, l = attribute.count; i < l; i ++ ) {

    			const x = attribute.getX( i );
    			const y = attribute.getY( i );
    			const z = attribute.getZ( i );

    			if ( x < minX ) minX = x;
    			if ( y < minY ) minY = y;
    			if ( z < minZ ) minZ = z;

    			if ( x > maxX ) maxX = x;
    			if ( y > maxY ) maxY = y;
    			if ( z > maxZ ) maxZ = z;

    		}

    		this.min.set( minX, minY, minZ );
    		this.max.set( maxX, maxY, maxZ );

    		return this;

    	}

    	setFromPoints( points ) {

    		this.makeEmpty();

    		for ( let i = 0, il = points.length; i < il; i ++ ) {

    			this.expandByPoint( points[ i ] );

    		}

    		return this;

    	}

    	setFromCenterAndSize( center, size ) {

    		const halfSize = _vector$b.copy( size ).multiplyScalar( 0.5 );

    		this.min.copy( center ).sub( halfSize );
    		this.max.copy( center ).add( halfSize );

    		return this;

    	}

    	setFromObject( object, precise = false ) {

    		this.makeEmpty();

    		return this.expandByObject( object, precise );

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	copy( box ) {

    		this.min.copy( box.min );
    		this.max.copy( box.max );

    		return this;

    	}

    	makeEmpty() {

    		this.min.x = this.min.y = this.min.z = + Infinity;
    		this.max.x = this.max.y = this.max.z = - Infinity;

    		return this;

    	}

    	isEmpty() {

    		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

    		return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );

    	}

    	getCenter( target ) {

    		return this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

    	}

    	getSize( target ) {

    		return this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min );

    	}

    	expandByPoint( point ) {

    		this.min.min( point );
    		this.max.max( point );

    		return this;

    	}

    	expandByVector( vector ) {

    		this.min.sub( vector );
    		this.max.add( vector );

    		return this;

    	}

    	expandByScalar( scalar ) {

    		this.min.addScalar( - scalar );
    		this.max.addScalar( scalar );

    		return this;

    	}

    	expandByObject( object, precise = false ) {

    		// Computes the world-axis-aligned bounding box of an object (including its children),
    		// accounting for both the object's, and children's, world transforms

    		object.updateWorldMatrix( false, false );

    		const geometry = object.geometry;

    		if ( geometry !== undefined ) {

    			if ( precise && geometry.attributes != undefined && geometry.attributes.position !== undefined ) {

    				const position = geometry.attributes.position;
    				for ( let i = 0, l = position.count; i < l; i ++ ) {

    					_vector$b.fromBufferAttribute( position, i ).applyMatrix4( object.matrixWorld );
    					this.expandByPoint( _vector$b );

    				}

    			} else {

    				if ( geometry.boundingBox === null ) {

    					geometry.computeBoundingBox();

    				}

    				_box$3.copy( geometry.boundingBox );
    				_box$3.applyMatrix4( object.matrixWorld );

    				this.union( _box$3 );

    			}

    		}

    		const children = object.children;

    		for ( let i = 0, l = children.length; i < l; i ++ ) {

    			this.expandByObject( children[ i ], precise );

    		}

    		return this;

    	}

    	containsPoint( point ) {

    		return point.x < this.min.x || point.x > this.max.x ||
    			point.y < this.min.y || point.y > this.max.y ||
    			point.z < this.min.z || point.z > this.max.z ? false : true;

    	}

    	containsBox( box ) {

    		return this.min.x <= box.min.x && box.max.x <= this.max.x &&
    			this.min.y <= box.min.y && box.max.y <= this.max.y &&
    			this.min.z <= box.min.z && box.max.z <= this.max.z;

    	}

    	getParameter( point, target ) {

    		// This can potentially have a divide by zero if the box
    		// has a size dimension of 0.

    		return target.set(
    			( point.x - this.min.x ) / ( this.max.x - this.min.x ),
    			( point.y - this.min.y ) / ( this.max.y - this.min.y ),
    			( point.z - this.min.z ) / ( this.max.z - this.min.z )
    		);

    	}

    	intersectsBox( box ) {

    		// using 6 splitting planes to rule out intersections.
    		return box.max.x < this.min.x || box.min.x > this.max.x ||
    			box.max.y < this.min.y || box.min.y > this.max.y ||
    			box.max.z < this.min.z || box.min.z > this.max.z ? false : true;

    	}

    	intersectsSphere( sphere ) {

    		// Find the point on the AABB closest to the sphere center.
    		this.clampPoint( sphere.center, _vector$b );

    		// If that point is inside the sphere, the AABB and sphere intersect.
    		return _vector$b.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );

    	}

    	intersectsPlane( plane ) {

    		// We compute the minimum and maximum dot product values. If those values
    		// are on the same side (back or front) of the plane, then there is no intersection.

    		let min, max;

    		if ( plane.normal.x > 0 ) {

    			min = plane.normal.x * this.min.x;
    			max = plane.normal.x * this.max.x;

    		} else {

    			min = plane.normal.x * this.max.x;
    			max = plane.normal.x * this.min.x;

    		}

    		if ( plane.normal.y > 0 ) {

    			min += plane.normal.y * this.min.y;
    			max += plane.normal.y * this.max.y;

    		} else {

    			min += plane.normal.y * this.max.y;
    			max += plane.normal.y * this.min.y;

    		}

    		if ( plane.normal.z > 0 ) {

    			min += plane.normal.z * this.min.z;
    			max += plane.normal.z * this.max.z;

    		} else {

    			min += plane.normal.z * this.max.z;
    			max += plane.normal.z * this.min.z;

    		}

    		return ( min <= - plane.constant && max >= - plane.constant );

    	}

    	intersectsTriangle( triangle ) {

    		if ( this.isEmpty() ) {

    			return false;

    		}

    		// compute box center and extents
    		this.getCenter( _center );
    		_extents.subVectors( this.max, _center );

    		// translate triangle to aabb origin
    		_v0$2.subVectors( triangle.a, _center );
    		_v1$7.subVectors( triangle.b, _center );
    		_v2$3.subVectors( triangle.c, _center );

    		// compute edge vectors for triangle
    		_f0.subVectors( _v1$7, _v0$2 );
    		_f1.subVectors( _v2$3, _v1$7 );
    		_f2.subVectors( _v0$2, _v2$3 );

    		// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
    		// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
    		// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
    		let axes = [
    			0, - _f0.z, _f0.y, 0, - _f1.z, _f1.y, 0, - _f2.z, _f2.y,
    			_f0.z, 0, - _f0.x, _f1.z, 0, - _f1.x, _f2.z, 0, - _f2.x,
    			- _f0.y, _f0.x, 0, - _f1.y, _f1.x, 0, - _f2.y, _f2.x, 0
    		];
    		if ( ! satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents ) ) {

    			return false;

    		}

    		// test 3 face normals from the aabb
    		axes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ];
    		if ( ! satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents ) ) {

    			return false;

    		}

    		// finally testing the face normal of the triangle
    		// use already existing triangle edge vectors here
    		_triangleNormal.crossVectors( _f0, _f1 );
    		axes = [ _triangleNormal.x, _triangleNormal.y, _triangleNormal.z ];

    		return satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents );

    	}

    	clampPoint( point, target ) {

    		return target.copy( point ).clamp( this.min, this.max );

    	}

    	distanceToPoint( point ) {

    		const clampedPoint = _vector$b.copy( point ).clamp( this.min, this.max );

    		return clampedPoint.sub( point ).length();

    	}

    	getBoundingSphere( target ) {

    		this.getCenter( target.center );

    		target.radius = this.getSize( _vector$b ).length() * 0.5;

    		return target;

    	}

    	intersect( box ) {

    		this.min.max( box.min );
    		this.max.min( box.max );

    		// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
    		if ( this.isEmpty() ) this.makeEmpty();

    		return this;

    	}

    	union( box ) {

    		this.min.min( box.min );
    		this.max.max( box.max );

    		return this;

    	}

    	applyMatrix4( matrix ) {

    		// transform of empty box is an empty box.
    		if ( this.isEmpty() ) return this;

    		// NOTE: I am using a binary pattern to specify all 2^3 combinations below
    		_points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
    		_points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
    		_points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
    		_points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
    		_points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
    		_points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
    		_points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
    		_points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 111

    		this.setFromPoints( _points );

    		return this;

    	}

    	translate( offset ) {

    		this.min.add( offset );
    		this.max.add( offset );

    		return this;

    	}

    	equals( box ) {

    		return box.min.equals( this.min ) && box.max.equals( this.max );

    	}

    }

    const _points = [
    	/*@__PURE__*/ new Vector3(),
    	/*@__PURE__*/ new Vector3(),
    	/*@__PURE__*/ new Vector3(),
    	/*@__PURE__*/ new Vector3(),
    	/*@__PURE__*/ new Vector3(),
    	/*@__PURE__*/ new Vector3(),
    	/*@__PURE__*/ new Vector3(),
    	/*@__PURE__*/ new Vector3()
    ];

    const _vector$b = /*@__PURE__*/ new Vector3();

    const _box$3 = /*@__PURE__*/ new Box3();

    // triangle centered vertices

    const _v0$2 = /*@__PURE__*/ new Vector3();
    const _v1$7 = /*@__PURE__*/ new Vector3();
    const _v2$3 = /*@__PURE__*/ new Vector3();

    // triangle edge vectors

    const _f0 = /*@__PURE__*/ new Vector3();
    const _f1 = /*@__PURE__*/ new Vector3();
    const _f2 = /*@__PURE__*/ new Vector3();

    const _center = /*@__PURE__*/ new Vector3();
    const _extents = /*@__PURE__*/ new Vector3();
    const _triangleNormal = /*@__PURE__*/ new Vector3();
    const _testAxis = /*@__PURE__*/ new Vector3();

    function satForAxes( axes, v0, v1, v2, extents ) {

    	for ( let i = 0, j = axes.length - 3; i <= j; i += 3 ) {

    		_testAxis.fromArray( axes, i );
    		// project the aabb onto the separating axis
    		const r = extents.x * Math.abs( _testAxis.x ) + extents.y * Math.abs( _testAxis.y ) + extents.z * Math.abs( _testAxis.z );
    		// project all 3 vertices of the triangle onto the separating axis
    		const p0 = v0.dot( _testAxis );
    		const p1 = v1.dot( _testAxis );
    		const p2 = v2.dot( _testAxis );
    		// actual test, basically see if either of the most extreme of the triangle points intersects r
    		if ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) {

    			// points of the projected triangle are outside the projected half-length of the aabb
    			// the axis is separating and we can exit
    			return false;

    		}

    	}

    	return true;

    }

    const _box$2 = /*@__PURE__*/ new Box3();
    const _v1$6 = /*@__PURE__*/ new Vector3();
    const _toFarthestPoint = /*@__PURE__*/ new Vector3();
    const _toPoint = /*@__PURE__*/ new Vector3();

    class Sphere {

    	constructor( center = new Vector3(), radius = - 1 ) {

    		this.center = center;
    		this.radius = radius;

    	}

    	set( center, radius ) {

    		this.center.copy( center );
    		this.radius = radius;

    		return this;

    	}

    	setFromPoints( points, optionalCenter ) {

    		const center = this.center;

    		if ( optionalCenter !== undefined ) {

    			center.copy( optionalCenter );

    		} else {

    			_box$2.setFromPoints( points ).getCenter( center );

    		}

    		let maxRadiusSq = 0;

    		for ( let i = 0, il = points.length; i < il; i ++ ) {

    			maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );

    		}

    		this.radius = Math.sqrt( maxRadiusSq );

    		return this;

    	}

    	copy( sphere ) {

    		this.center.copy( sphere.center );
    		this.radius = sphere.radius;

    		return this;

    	}

    	isEmpty() {

    		return ( this.radius < 0 );

    	}

    	makeEmpty() {

    		this.center.set( 0, 0, 0 );
    		this.radius = - 1;

    		return this;

    	}

    	containsPoint( point ) {

    		return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );

    	}

    	distanceToPoint( point ) {

    		return ( point.distanceTo( this.center ) - this.radius );

    	}

    	intersectsSphere( sphere ) {

    		const radiusSum = this.radius + sphere.radius;

    		return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );

    	}

    	intersectsBox( box ) {

    		return box.intersectsSphere( this );

    	}

    	intersectsPlane( plane ) {

    		return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;

    	}

    	clampPoint( point, target ) {

    		const deltaLengthSq = this.center.distanceToSquared( point );

    		target.copy( point );

    		if ( deltaLengthSq > ( this.radius * this.radius ) ) {

    			target.sub( this.center ).normalize();
    			target.multiplyScalar( this.radius ).add( this.center );

    		}

    		return target;

    	}

    	getBoundingBox( target ) {

    		if ( this.isEmpty() ) {

    			// Empty sphere produces empty bounding box
    			target.makeEmpty();
    			return target;

    		}

    		target.set( this.center, this.center );
    		target.expandByScalar( this.radius );

    		return target;

    	}

    	applyMatrix4( matrix ) {

    		this.center.applyMatrix4( matrix );
    		this.radius = this.radius * matrix.getMaxScaleOnAxis();

    		return this;

    	}

    	translate( offset ) {

    		this.center.add( offset );

    		return this;

    	}

    	expandByPoint( point ) {

    		if ( this.isEmpty() ) {

    			this.center.copy( point );
    			this.radius = 0;

    			return this;

    		}

    		// from https://github.com/juj/MathGeoLib/blob/2940b99b99cfe575dd45103ef20f4019dee15b54/src/Geometry/Sphere.cpp#L649-L671

    		_toPoint.subVectors( point, this.center );

    		const lengthSq = _toPoint.lengthSq();

    		if ( lengthSq > ( this.radius * this.radius ) ) {

    			const length = Math.sqrt( lengthSq );
    			const missingRadiusHalf = ( length - this.radius ) * 0.5;

    			// Nudge this sphere towards the target point. Add half the missing distance to radius,
    			// and the other half to position. This gives a tighter enclosure, instead of if
    			// the whole missing distance were just added to radius.

    			this.center.add( _toPoint.multiplyScalar( missingRadiusHalf / length ) );
    			this.radius += missingRadiusHalf;

    		}

    		return this;

    	}

    	union( sphere ) {

    		// handle empty sphere cases
    		if ( sphere.isEmpty() ) {

    			return this;

    		} else if ( this.isEmpty() ) {

    			this.copy( sphere );

    			return this;

    		}

    		// from https://github.com/juj/MathGeoLib/blob/2940b99b99cfe575dd45103ef20f4019dee15b54/src/Geometry/Sphere.cpp#L759-L769

    		// To enclose another sphere into this sphere, we only need to enclose two points:
    		// 1) Enclose the farthest point on the other sphere into this sphere.
    		// 2) Enclose the opposite point of the farthest point into this sphere.

    		 if ( this.center.equals( sphere.center ) === true ) {

    			 _toFarthestPoint.set( 0, 0, 1 ).multiplyScalar( sphere.radius );


    		} else {

    			_toFarthestPoint.subVectors( sphere.center, this.center ).normalize().multiplyScalar( sphere.radius );

    		}

    		this.expandByPoint( _v1$6.copy( sphere.center ).add( _toFarthestPoint ) );
    		this.expandByPoint( _v1$6.copy( sphere.center ).sub( _toFarthestPoint ) );

    		return this;

    	}

    	equals( sphere ) {

    		return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    const _vector$a = /*@__PURE__*/ new Vector3();
    const _segCenter = /*@__PURE__*/ new Vector3();
    const _segDir = /*@__PURE__*/ new Vector3();
    const _diff = /*@__PURE__*/ new Vector3();

    const _edge1 = /*@__PURE__*/ new Vector3();
    const _edge2 = /*@__PURE__*/ new Vector3();
    const _normal$1 = /*@__PURE__*/ new Vector3();

    class Ray {

    	constructor( origin = new Vector3(), direction = new Vector3( 0, 0, - 1 ) ) {

    		this.origin = origin;
    		this.direction = direction;

    	}

    	set( origin, direction ) {

    		this.origin.copy( origin );
    		this.direction.copy( direction );

    		return this;

    	}

    	copy( ray ) {

    		this.origin.copy( ray.origin );
    		this.direction.copy( ray.direction );

    		return this;

    	}

    	at( t, target ) {

    		return target.copy( this.direction ).multiplyScalar( t ).add( this.origin );

    	}

    	lookAt( v ) {

    		this.direction.copy( v ).sub( this.origin ).normalize();

    		return this;

    	}

    	recast( t ) {

    		this.origin.copy( this.at( t, _vector$a ) );

    		return this;

    	}

    	closestPointToPoint( point, target ) {

    		target.subVectors( point, this.origin );

    		const directionDistance = target.dot( this.direction );

    		if ( directionDistance < 0 ) {

    			return target.copy( this.origin );

    		}

    		return target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

    	}

    	distanceToPoint( point ) {

    		return Math.sqrt( this.distanceSqToPoint( point ) );

    	}

    	distanceSqToPoint( point ) {

    		const directionDistance = _vector$a.subVectors( point, this.origin ).dot( this.direction );

    		// point behind the ray

    		if ( directionDistance < 0 ) {

    			return this.origin.distanceToSquared( point );

    		}

    		_vector$a.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

    		return _vector$a.distanceToSquared( point );

    	}

    	distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {

    		// from https://github.com/pmjoniak/GeometricTools/blob/master/GTEngine/Include/Mathematics/GteDistRaySegment.h
    		// It returns the min distance between the ray and the segment
    		// defined by v0 and v1
    		// It can also set two optional targets :
    		// - The closest point on the ray
    		// - The closest point on the segment

    		_segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
    		_segDir.copy( v1 ).sub( v0 ).normalize();
    		_diff.copy( this.origin ).sub( _segCenter );

    		const segExtent = v0.distanceTo( v1 ) * 0.5;
    		const a01 = - this.direction.dot( _segDir );
    		const b0 = _diff.dot( this.direction );
    		const b1 = - _diff.dot( _segDir );
    		const c = _diff.lengthSq();
    		const det = Math.abs( 1 - a01 * a01 );
    		let s0, s1, sqrDist, extDet;

    		if ( det > 0 ) {

    			// The ray and segment are not parallel.

    			s0 = a01 * b1 - b0;
    			s1 = a01 * b0 - b1;
    			extDet = segExtent * det;

    			if ( s0 >= 0 ) {

    				if ( s1 >= - extDet ) {

    					if ( s1 <= extDet ) {

    						// region 0
    						// Minimum at interior points of ray and segment.

    						const invDet = 1 / det;
    						s0 *= invDet;
    						s1 *= invDet;
    						sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;

    					} else {

    						// region 1

    						s1 = segExtent;
    						s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
    						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

    					}

    				} else {

    					// region 5

    					s1 = - segExtent;
    					s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
    					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

    				}

    			} else {

    				if ( s1 <= - extDet ) {

    					// region 4

    					s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
    					s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
    					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

    				} else if ( s1 <= extDet ) {

    					// region 3

    					s0 = 0;
    					s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
    					sqrDist = s1 * ( s1 + 2 * b1 ) + c;

    				} else {

    					// region 2

    					s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
    					s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
    					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

    				}

    			}

    		} else {

    			// Ray and segment are parallel.

    			s1 = ( a01 > 0 ) ? - segExtent : segExtent;
    			s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
    			sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

    		}

    		if ( optionalPointOnRay ) {

    			optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );

    		}

    		if ( optionalPointOnSegment ) {

    			optionalPointOnSegment.copy( _segDir ).multiplyScalar( s1 ).add( _segCenter );

    		}

    		return sqrDist;

    	}

    	intersectSphere( sphere, target ) {

    		_vector$a.subVectors( sphere.center, this.origin );
    		const tca = _vector$a.dot( this.direction );
    		const d2 = _vector$a.dot( _vector$a ) - tca * tca;
    		const radius2 = sphere.radius * sphere.radius;

    		if ( d2 > radius2 ) return null;

    		const thc = Math.sqrt( radius2 - d2 );

    		// t0 = first intersect point - entrance on front of sphere
    		const t0 = tca - thc;

    		// t1 = second intersect point - exit point on back of sphere
    		const t1 = tca + thc;

    		// test to see if both t0 and t1 are behind the ray - if so, return null
    		if ( t0 < 0 && t1 < 0 ) return null;

    		// test to see if t0 is behind the ray:
    		// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
    		// in order to always return an intersect point that is in front of the ray.
    		if ( t0 < 0 ) return this.at( t1, target );

    		// else t0 is in front of the ray, so return the first collision point scaled by t0
    		return this.at( t0, target );

    	}

    	intersectsSphere( sphere ) {

    		return this.distanceSqToPoint( sphere.center ) <= ( sphere.radius * sphere.radius );

    	}

    	distanceToPlane( plane ) {

    		const denominator = plane.normal.dot( this.direction );

    		if ( denominator === 0 ) {

    			// line is coplanar, return origin
    			if ( plane.distanceToPoint( this.origin ) === 0 ) {

    				return 0;

    			}

    			// Null is preferable to undefined since undefined means.... it is undefined

    			return null;

    		}

    		const t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;

    		// Return if the ray never intersects the plane

    		return t >= 0 ? t : null;

    	}

    	intersectPlane( plane, target ) {

    		const t = this.distanceToPlane( plane );

    		if ( t === null ) {

    			return null;

    		}

    		return this.at( t, target );

    	}

    	intersectsPlane( plane ) {

    		// check if the ray lies on the plane first

    		const distToPoint = plane.distanceToPoint( this.origin );

    		if ( distToPoint === 0 ) {

    			return true;

    		}

    		const denominator = plane.normal.dot( this.direction );

    		if ( denominator * distToPoint < 0 ) {

    			return true;

    		}

    		// ray origin is behind the plane (and is pointing behind it)

    		return false;

    	}

    	intersectBox( box, target ) {

    		let tmin, tmax, tymin, tymax, tzmin, tzmax;

    		const invdirx = 1 / this.direction.x,
    			invdiry = 1 / this.direction.y,
    			invdirz = 1 / this.direction.z;

    		const origin = this.origin;

    		if ( invdirx >= 0 ) {

    			tmin = ( box.min.x - origin.x ) * invdirx;
    			tmax = ( box.max.x - origin.x ) * invdirx;

    		} else {

    			tmin = ( box.max.x - origin.x ) * invdirx;
    			tmax = ( box.min.x - origin.x ) * invdirx;

    		}

    		if ( invdiry >= 0 ) {

    			tymin = ( box.min.y - origin.y ) * invdiry;
    			tymax = ( box.max.y - origin.y ) * invdiry;

    		} else {

    			tymin = ( box.max.y - origin.y ) * invdiry;
    			tymax = ( box.min.y - origin.y ) * invdiry;

    		}

    		if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;

    		// These lines also handle the case where tmin or tmax is NaN
    		// (result of 0 * Infinity). x !== x returns true if x is NaN

    		if ( tymin > tmin || tmin !== tmin ) tmin = tymin;

    		if ( tymax < tmax || tmax !== tmax ) tmax = tymax;

    		if ( invdirz >= 0 ) {

    			tzmin = ( box.min.z - origin.z ) * invdirz;
    			tzmax = ( box.max.z - origin.z ) * invdirz;

    		} else {

    			tzmin = ( box.max.z - origin.z ) * invdirz;
    			tzmax = ( box.min.z - origin.z ) * invdirz;

    		}

    		if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;

    		if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;

    		if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;

    		//return point closest to the ray (positive side)

    		if ( tmax < 0 ) return null;

    		return this.at( tmin >= 0 ? tmin : tmax, target );

    	}

    	intersectsBox( box ) {

    		return this.intersectBox( box, _vector$a ) !== null;

    	}

    	intersectTriangle( a, b, c, backfaceCulling, target ) {

    		// Compute the offset origin, edges, and normal.

    		// from https://github.com/pmjoniak/GeometricTools/blob/master/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h

    		_edge1.subVectors( b, a );
    		_edge2.subVectors( c, a );
    		_normal$1.crossVectors( _edge1, _edge2 );

    		// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
    		// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
    		//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
    		//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
    		//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
    		let DdN = this.direction.dot( _normal$1 );
    		let sign;

    		if ( DdN > 0 ) {

    			if ( backfaceCulling ) return null;
    			sign = 1;

    		} else if ( DdN < 0 ) {

    			sign = - 1;
    			DdN = - DdN;

    		} else {

    			return null;

    		}

    		_diff.subVectors( this.origin, a );
    		const DdQxE2 = sign * this.direction.dot( _edge2.crossVectors( _diff, _edge2 ) );

    		// b1 < 0, no intersection
    		if ( DdQxE2 < 0 ) {

    			return null;

    		}

    		const DdE1xQ = sign * this.direction.dot( _edge1.cross( _diff ) );

    		// b2 < 0, no intersection
    		if ( DdE1xQ < 0 ) {

    			return null;

    		}

    		// b1+b2 > 1, no intersection
    		if ( DdQxE2 + DdE1xQ > DdN ) {

    			return null;

    		}

    		// Line intersects triangle, check if ray does.
    		const QdN = - sign * _diff.dot( _normal$1 );

    		// t < 0, no intersection
    		if ( QdN < 0 ) {

    			return null;

    		}

    		// Ray intersects triangle.
    		return this.at( QdN / DdN, target );

    	}

    	applyMatrix4( matrix4 ) {

    		this.origin.applyMatrix4( matrix4 );
    		this.direction.transformDirection( matrix4 );

    		return this;

    	}

    	equals( ray ) {

    		return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    class Matrix4 {

    	constructor() {

    		Matrix4.prototype.isMatrix4 = true;

    		this.elements = [

    			1, 0, 0, 0,
    			0, 1, 0, 0,
    			0, 0, 1, 0,
    			0, 0, 0, 1

    		];

    	}

    	set( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {

    		const te = this.elements;

    		te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
    		te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
    		te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
    		te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;

    		return this;

    	}

    	identity() {

    		this.set(

    			1, 0, 0, 0,
    			0, 1, 0, 0,
    			0, 0, 1, 0,
    			0, 0, 0, 1

    		);

    		return this;

    	}

    	clone() {

    		return new Matrix4().fromArray( this.elements );

    	}

    	copy( m ) {

    		const te = this.elements;
    		const me = m.elements;

    		te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];
    		te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];
    		te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];
    		te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];

    		return this;

    	}

    	copyPosition( m ) {

    		const te = this.elements, me = m.elements;

    		te[ 12 ] = me[ 12 ];
    		te[ 13 ] = me[ 13 ];
    		te[ 14 ] = me[ 14 ];

    		return this;

    	}

    	setFromMatrix3( m ) {

    		const me = m.elements;

    		this.set(

    			me[ 0 ], me[ 3 ], me[ 6 ], 0,
    			me[ 1 ], me[ 4 ], me[ 7 ], 0,
    			me[ 2 ], me[ 5 ], me[ 8 ], 0,
    			0, 0, 0, 1

    		);

    		return this;

    	}

    	extractBasis( xAxis, yAxis, zAxis ) {

    		xAxis.setFromMatrixColumn( this, 0 );
    		yAxis.setFromMatrixColumn( this, 1 );
    		zAxis.setFromMatrixColumn( this, 2 );

    		return this;

    	}

    	makeBasis( xAxis, yAxis, zAxis ) {

    		this.set(
    			xAxis.x, yAxis.x, zAxis.x, 0,
    			xAxis.y, yAxis.y, zAxis.y, 0,
    			xAxis.z, yAxis.z, zAxis.z, 0,
    			0, 0, 0, 1
    		);

    		return this;

    	}

    	extractRotation( m ) {

    		// this method does not support reflection matrices

    		const te = this.elements;
    		const me = m.elements;

    		const scaleX = 1 / _v1$5.setFromMatrixColumn( m, 0 ).length();
    		const scaleY = 1 / _v1$5.setFromMatrixColumn( m, 1 ).length();
    		const scaleZ = 1 / _v1$5.setFromMatrixColumn( m, 2 ).length();

    		te[ 0 ] = me[ 0 ] * scaleX;
    		te[ 1 ] = me[ 1 ] * scaleX;
    		te[ 2 ] = me[ 2 ] * scaleX;
    		te[ 3 ] = 0;

    		te[ 4 ] = me[ 4 ] * scaleY;
    		te[ 5 ] = me[ 5 ] * scaleY;
    		te[ 6 ] = me[ 6 ] * scaleY;
    		te[ 7 ] = 0;

    		te[ 8 ] = me[ 8 ] * scaleZ;
    		te[ 9 ] = me[ 9 ] * scaleZ;
    		te[ 10 ] = me[ 10 ] * scaleZ;
    		te[ 11 ] = 0;

    		te[ 12 ] = 0;
    		te[ 13 ] = 0;
    		te[ 14 ] = 0;
    		te[ 15 ] = 1;

    		return this;

    	}

    	makeRotationFromEuler( euler ) {

    		const te = this.elements;

    		const x = euler.x, y = euler.y, z = euler.z;
    		const a = Math.cos( x ), b = Math.sin( x );
    		const c = Math.cos( y ), d = Math.sin( y );
    		const e = Math.cos( z ), f = Math.sin( z );

    		if ( euler.order === 'XYZ' ) {

    			const ae = a * e, af = a * f, be = b * e, bf = b * f;

    			te[ 0 ] = c * e;
    			te[ 4 ] = - c * f;
    			te[ 8 ] = d;

    			te[ 1 ] = af + be * d;
    			te[ 5 ] = ae - bf * d;
    			te[ 9 ] = - b * c;

    			te[ 2 ] = bf - ae * d;
    			te[ 6 ] = be + af * d;
    			te[ 10 ] = a * c;

    		} else if ( euler.order === 'YXZ' ) {

    			const ce = c * e, cf = c * f, de = d * e, df = d * f;

    			te[ 0 ] = ce + df * b;
    			te[ 4 ] = de * b - cf;
    			te[ 8 ] = a * d;

    			te[ 1 ] = a * f;
    			te[ 5 ] = a * e;
    			te[ 9 ] = - b;

    			te[ 2 ] = cf * b - de;
    			te[ 6 ] = df + ce * b;
    			te[ 10 ] = a * c;

    		} else if ( euler.order === 'ZXY' ) {

    			const ce = c * e, cf = c * f, de = d * e, df = d * f;

    			te[ 0 ] = ce - df * b;
    			te[ 4 ] = - a * f;
    			te[ 8 ] = de + cf * b;

    			te[ 1 ] = cf + de * b;
    			te[ 5 ] = a * e;
    			te[ 9 ] = df - ce * b;

    			te[ 2 ] = - a * d;
    			te[ 6 ] = b;
    			te[ 10 ] = a * c;

    		} else if ( euler.order === 'ZYX' ) {

    			const ae = a * e, af = a * f, be = b * e, bf = b * f;

    			te[ 0 ] = c * e;
    			te[ 4 ] = be * d - af;
    			te[ 8 ] = ae * d + bf;

    			te[ 1 ] = c * f;
    			te[ 5 ] = bf * d + ae;
    			te[ 9 ] = af * d - be;

    			te[ 2 ] = - d;
    			te[ 6 ] = b * c;
    			te[ 10 ] = a * c;

    		} else if ( euler.order === 'YZX' ) {

    			const ac = a * c, ad = a * d, bc = b * c, bd = b * d;

    			te[ 0 ] = c * e;
    			te[ 4 ] = bd - ac * f;
    			te[ 8 ] = bc * f + ad;

    			te[ 1 ] = f;
    			te[ 5 ] = a * e;
    			te[ 9 ] = - b * e;

    			te[ 2 ] = - d * e;
    			te[ 6 ] = ad * f + bc;
    			te[ 10 ] = ac - bd * f;

    		} else if ( euler.order === 'XZY' ) {

    			const ac = a * c, ad = a * d, bc = b * c, bd = b * d;

    			te[ 0 ] = c * e;
    			te[ 4 ] = - f;
    			te[ 8 ] = d * e;

    			te[ 1 ] = ac * f + bd;
    			te[ 5 ] = a * e;
    			te[ 9 ] = ad * f - bc;

    			te[ 2 ] = bc * f - ad;
    			te[ 6 ] = b * e;
    			te[ 10 ] = bd * f + ac;

    		}

    		// bottom row
    		te[ 3 ] = 0;
    		te[ 7 ] = 0;
    		te[ 11 ] = 0;

    		// last column
    		te[ 12 ] = 0;
    		te[ 13 ] = 0;
    		te[ 14 ] = 0;
    		te[ 15 ] = 1;

    		return this;

    	}

    	makeRotationFromQuaternion( q ) {

    		return this.compose( _zero, q, _one );

    	}

    	lookAt( eye, target, up ) {

    		const te = this.elements;

    		_z.subVectors( eye, target );

    		if ( _z.lengthSq() === 0 ) {

    			// eye and target are in the same position

    			_z.z = 1;

    		}

    		_z.normalize();
    		_x.crossVectors( up, _z );

    		if ( _x.lengthSq() === 0 ) {

    			// up and z are parallel

    			if ( Math.abs( up.z ) === 1 ) {

    				_z.x += 0.0001;

    			} else {

    				_z.z += 0.0001;

    			}

    			_z.normalize();
    			_x.crossVectors( up, _z );

    		}

    		_x.normalize();
    		_y.crossVectors( _z, _x );

    		te[ 0 ] = _x.x; te[ 4 ] = _y.x; te[ 8 ] = _z.x;
    		te[ 1 ] = _x.y; te[ 5 ] = _y.y; te[ 9 ] = _z.y;
    		te[ 2 ] = _x.z; te[ 6 ] = _y.z; te[ 10 ] = _z.z;

    		return this;

    	}

    	multiply( m ) {

    		return this.multiplyMatrices( this, m );

    	}

    	premultiply( m ) {

    		return this.multiplyMatrices( m, this );

    	}

    	multiplyMatrices( a, b ) {

    		const ae = a.elements;
    		const be = b.elements;
    		const te = this.elements;

    		const a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
    		const a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
    		const a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
    		const a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];

    		const b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
    		const b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
    		const b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
    		const b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];

    		te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
    		te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
    		te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
    		te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;

    		te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
    		te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
    		te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
    		te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;

    		te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
    		te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
    		te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
    		te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;

    		te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
    		te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
    		te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
    		te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;

    		return this;

    	}

    	multiplyScalar( s ) {

    		const te = this.elements;

    		te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
    		te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
    		te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
    		te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;

    		return this;

    	}

    	determinant() {

    		const te = this.elements;

    		const n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
    		const n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
    		const n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
    		const n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];

    		//TODO: make this more efficient
    		//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )

    		return (
    			n41 * (
    				+ n14 * n23 * n32
    				 - n13 * n24 * n32
    				 - n14 * n22 * n33
    				 + n12 * n24 * n33
    				 + n13 * n22 * n34
    				 - n12 * n23 * n34
    			) +
    			n42 * (
    				+ n11 * n23 * n34
    				 - n11 * n24 * n33
    				 + n14 * n21 * n33
    				 - n13 * n21 * n34
    				 + n13 * n24 * n31
    				 - n14 * n23 * n31
    			) +
    			n43 * (
    				+ n11 * n24 * n32
    				 - n11 * n22 * n34
    				 - n14 * n21 * n32
    				 + n12 * n21 * n34
    				 + n14 * n22 * n31
    				 - n12 * n24 * n31
    			) +
    			n44 * (
    				- n13 * n22 * n31
    				 - n11 * n23 * n32
    				 + n11 * n22 * n33
    				 + n13 * n21 * n32
    				 - n12 * n21 * n33
    				 + n12 * n23 * n31
    			)

    		);

    	}

    	transpose() {

    		const te = this.elements;
    		let tmp;

    		tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
    		tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
    		tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;

    		tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
    		tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
    		tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;

    		return this;

    	}

    	setPosition( x, y, z ) {

    		const te = this.elements;

    		if ( x.isVector3 ) {

    			te[ 12 ] = x.x;
    			te[ 13 ] = x.y;
    			te[ 14 ] = x.z;

    		} else {

    			te[ 12 ] = x;
    			te[ 13 ] = y;
    			te[ 14 ] = z;

    		}

    		return this;

    	}

    	invert() {

    		// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
    		const te = this.elements,

    			n11 = te[ 0 ], n21 = te[ 1 ], n31 = te[ 2 ], n41 = te[ 3 ],
    			n12 = te[ 4 ], n22 = te[ 5 ], n32 = te[ 6 ], n42 = te[ 7 ],
    			n13 = te[ 8 ], n23 = te[ 9 ], n33 = te[ 10 ], n43 = te[ 11 ],
    			n14 = te[ 12 ], n24 = te[ 13 ], n34 = te[ 14 ], n44 = te[ 15 ],

    			t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
    			t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
    			t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
    			t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;

    		const det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;

    		if ( det === 0 ) return this.set( 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 );

    		const detInv = 1 / det;

    		te[ 0 ] = t11 * detInv;
    		te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;
    		te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;
    		te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;

    		te[ 4 ] = t12 * detInv;
    		te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;
    		te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;
    		te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;

    		te[ 8 ] = t13 * detInv;
    		te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;
    		te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;
    		te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;

    		te[ 12 ] = t14 * detInv;
    		te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;
    		te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;
    		te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;

    		return this;

    	}

    	scale( v ) {

    		const te = this.elements;
    		const x = v.x, y = v.y, z = v.z;

    		te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
    		te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
    		te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
    		te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;

    		return this;

    	}

    	getMaxScaleOnAxis() {

    		const te = this.elements;

    		const scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
    		const scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
    		const scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];

    		return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );

    	}

    	makeTranslation( x, y, z ) {

    		this.set(

    			1, 0, 0, x,
    			0, 1, 0, y,
    			0, 0, 1, z,
    			0, 0, 0, 1

    		);

    		return this;

    	}

    	makeRotationX( theta ) {

    		const c = Math.cos( theta ), s = Math.sin( theta );

    		this.set(

    			1, 0, 0, 0,
    			0, c, - s, 0,
    			0, s, c, 0,
    			0, 0, 0, 1

    		);

    		return this;

    	}

    	makeRotationY( theta ) {

    		const c = Math.cos( theta ), s = Math.sin( theta );

    		this.set(

    			 c, 0, s, 0,
    			 0, 1, 0, 0,
    			- s, 0, c, 0,
    			 0, 0, 0, 1

    		);

    		return this;

    	}

    	makeRotationZ( theta ) {

    		const c = Math.cos( theta ), s = Math.sin( theta );

    		this.set(

    			c, - s, 0, 0,
    			s, c, 0, 0,
    			0, 0, 1, 0,
    			0, 0, 0, 1

    		);

    		return this;

    	}

    	makeRotationAxis( axis, angle ) {

    		// Based on http://www.gamedev.net/reference/articles/article1199.asp

    		const c = Math.cos( angle );
    		const s = Math.sin( angle );
    		const t = 1 - c;
    		const x = axis.x, y = axis.y, z = axis.z;
    		const tx = t * x, ty = t * y;

    		this.set(

    			tx * x + c, tx * y - s * z, tx * z + s * y, 0,
    			tx * y + s * z, ty * y + c, ty * z - s * x, 0,
    			tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
    			0, 0, 0, 1

    		);

    		return this;

    	}

    	makeScale( x, y, z ) {

    		this.set(

    			x, 0, 0, 0,
    			0, y, 0, 0,
    			0, 0, z, 0,
    			0, 0, 0, 1

    		);

    		return this;

    	}

    	makeShear( xy, xz, yx, yz, zx, zy ) {

    		this.set(

    			1, yx, zx, 0,
    			xy, 1, zy, 0,
    			xz, yz, 1, 0,
    			0, 0, 0, 1

    		);

    		return this;

    	}

    	compose( position, quaternion, scale ) {

    		const te = this.elements;

    		const x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w;
    		const x2 = x + x,	y2 = y + y, z2 = z + z;
    		const xx = x * x2, xy = x * y2, xz = x * z2;
    		const yy = y * y2, yz = y * z2, zz = z * z2;
    		const wx = w * x2, wy = w * y2, wz = w * z2;

    		const sx = scale.x, sy = scale.y, sz = scale.z;

    		te[ 0 ] = ( 1 - ( yy + zz ) ) * sx;
    		te[ 1 ] = ( xy + wz ) * sx;
    		te[ 2 ] = ( xz - wy ) * sx;
    		te[ 3 ] = 0;

    		te[ 4 ] = ( xy - wz ) * sy;
    		te[ 5 ] = ( 1 - ( xx + zz ) ) * sy;
    		te[ 6 ] = ( yz + wx ) * sy;
    		te[ 7 ] = 0;

    		te[ 8 ] = ( xz + wy ) * sz;
    		te[ 9 ] = ( yz - wx ) * sz;
    		te[ 10 ] = ( 1 - ( xx + yy ) ) * sz;
    		te[ 11 ] = 0;

    		te[ 12 ] = position.x;
    		te[ 13 ] = position.y;
    		te[ 14 ] = position.z;
    		te[ 15 ] = 1;

    		return this;

    	}

    	decompose( position, quaternion, scale ) {

    		const te = this.elements;

    		let sx = _v1$5.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
    		const sy = _v1$5.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
    		const sz = _v1$5.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();

    		// if determine is negative, we need to invert one scale
    		const det = this.determinant();
    		if ( det < 0 ) sx = - sx;

    		position.x = te[ 12 ];
    		position.y = te[ 13 ];
    		position.z = te[ 14 ];

    		// scale the rotation part
    		_m1$2.copy( this );

    		const invSX = 1 / sx;
    		const invSY = 1 / sy;
    		const invSZ = 1 / sz;

    		_m1$2.elements[ 0 ] *= invSX;
    		_m1$2.elements[ 1 ] *= invSX;
    		_m1$2.elements[ 2 ] *= invSX;

    		_m1$2.elements[ 4 ] *= invSY;
    		_m1$2.elements[ 5 ] *= invSY;
    		_m1$2.elements[ 6 ] *= invSY;

    		_m1$2.elements[ 8 ] *= invSZ;
    		_m1$2.elements[ 9 ] *= invSZ;
    		_m1$2.elements[ 10 ] *= invSZ;

    		quaternion.setFromRotationMatrix( _m1$2 );

    		scale.x = sx;
    		scale.y = sy;
    		scale.z = sz;

    		return this;

    	}

    	makePerspective( left, right, top, bottom, near, far ) {

    		const te = this.elements;
    		const x = 2 * near / ( right - left );
    		const y = 2 * near / ( top - bottom );

    		const a = ( right + left ) / ( right - left );
    		const b = ( top + bottom ) / ( top - bottom );
    		const c = - ( far + near ) / ( far - near );
    		const d = - 2 * far * near / ( far - near );

    		te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
    		te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
    		te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
    		te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;

    		return this;

    	}

    	makeOrthographic( left, right, top, bottom, near, far ) {

    		const te = this.elements;
    		const w = 1.0 / ( right - left );
    		const h = 1.0 / ( top - bottom );
    		const p = 1.0 / ( far - near );

    		const x = ( right + left ) * w;
    		const y = ( top + bottom ) * h;
    		const z = ( far + near ) * p;

    		te[ 0 ] = 2 * w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
    		te[ 1 ] = 0;	te[ 5 ] = 2 * h;	te[ 9 ] = 0;	te[ 13 ] = - y;
    		te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;
    		te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;

    		return this;

    	}

    	equals( matrix ) {

    		const te = this.elements;
    		const me = matrix.elements;

    		for ( let i = 0; i < 16; i ++ ) {

    			if ( te[ i ] !== me[ i ] ) return false;

    		}

    		return true;

    	}

    	fromArray( array, offset = 0 ) {

    		for ( let i = 0; i < 16; i ++ ) {

    			this.elements[ i ] = array[ i + offset ];

    		}

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		const te = this.elements;

    		array[ offset ] = te[ 0 ];
    		array[ offset + 1 ] = te[ 1 ];
    		array[ offset + 2 ] = te[ 2 ];
    		array[ offset + 3 ] = te[ 3 ];

    		array[ offset + 4 ] = te[ 4 ];
    		array[ offset + 5 ] = te[ 5 ];
    		array[ offset + 6 ] = te[ 6 ];
    		array[ offset + 7 ] = te[ 7 ];

    		array[ offset + 8 ] = te[ 8 ];
    		array[ offset + 9 ] = te[ 9 ];
    		array[ offset + 10 ] = te[ 10 ];
    		array[ offset + 11 ] = te[ 11 ];

    		array[ offset + 12 ] = te[ 12 ];
    		array[ offset + 13 ] = te[ 13 ];
    		array[ offset + 14 ] = te[ 14 ];
    		array[ offset + 15 ] = te[ 15 ];

    		return array;

    	}

    }

    const _v1$5 = /*@__PURE__*/ new Vector3();
    const _m1$2 = /*@__PURE__*/ new Matrix4();
    const _zero = /*@__PURE__*/ new Vector3( 0, 0, 0 );
    const _one = /*@__PURE__*/ new Vector3( 1, 1, 1 );
    const _x = /*@__PURE__*/ new Vector3();
    const _y = /*@__PURE__*/ new Vector3();
    const _z = /*@__PURE__*/ new Vector3();

    const _matrix$1 = /*@__PURE__*/ new Matrix4();
    const _quaternion$3 = /*@__PURE__*/ new Quaternion();

    class Euler {

    	constructor( x = 0, y = 0, z = 0, order = Euler.DefaultOrder ) {

    		this.isEuler = true;

    		this._x = x;
    		this._y = y;
    		this._z = z;
    		this._order = order;

    	}

    	get x() {

    		return this._x;

    	}

    	set x( value ) {

    		this._x = value;
    		this._onChangeCallback();

    	}

    	get y() {

    		return this._y;

    	}

    	set y( value ) {

    		this._y = value;
    		this._onChangeCallback();

    	}

    	get z() {

    		return this._z;

    	}

    	set z( value ) {

    		this._z = value;
    		this._onChangeCallback();

    	}

    	get order() {

    		return this._order;

    	}

    	set order( value ) {

    		this._order = value;
    		this._onChangeCallback();

    	}

    	set( x, y, z, order = this._order ) {

    		this._x = x;
    		this._y = y;
    		this._z = z;
    		this._order = order;

    		this._onChangeCallback();

    		return this;

    	}

    	clone() {

    		return new this.constructor( this._x, this._y, this._z, this._order );

    	}

    	copy( euler ) {

    		this._x = euler._x;
    		this._y = euler._y;
    		this._z = euler._z;
    		this._order = euler._order;

    		this._onChangeCallback();

    		return this;

    	}

    	setFromRotationMatrix( m, order = this._order, update = true ) {

    		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

    		const te = m.elements;
    		const m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
    		const m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
    		const m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

    		switch ( order ) {

    			case 'XYZ':

    				this._y = Math.asin( clamp( m13, - 1, 1 ) );

    				if ( Math.abs( m13 ) < 0.9999999 ) {

    					this._x = Math.atan2( - m23, m33 );
    					this._z = Math.atan2( - m12, m11 );

    				} else {

    					this._x = Math.atan2( m32, m22 );
    					this._z = 0;

    				}

    				break;

    			case 'YXZ':

    				this._x = Math.asin( - clamp( m23, - 1, 1 ) );

    				if ( Math.abs( m23 ) < 0.9999999 ) {

    					this._y = Math.atan2( m13, m33 );
    					this._z = Math.atan2( m21, m22 );

    				} else {

    					this._y = Math.atan2( - m31, m11 );
    					this._z = 0;

    				}

    				break;

    			case 'ZXY':

    				this._x = Math.asin( clamp( m32, - 1, 1 ) );

    				if ( Math.abs( m32 ) < 0.9999999 ) {

    					this._y = Math.atan2( - m31, m33 );
    					this._z = Math.atan2( - m12, m22 );

    				} else {

    					this._y = 0;
    					this._z = Math.atan2( m21, m11 );

    				}

    				break;

    			case 'ZYX':

    				this._y = Math.asin( - clamp( m31, - 1, 1 ) );

    				if ( Math.abs( m31 ) < 0.9999999 ) {

    					this._x = Math.atan2( m32, m33 );
    					this._z = Math.atan2( m21, m11 );

    				} else {

    					this._x = 0;
    					this._z = Math.atan2( - m12, m22 );

    				}

    				break;

    			case 'YZX':

    				this._z = Math.asin( clamp( m21, - 1, 1 ) );

    				if ( Math.abs( m21 ) < 0.9999999 ) {

    					this._x = Math.atan2( - m23, m22 );
    					this._y = Math.atan2( - m31, m11 );

    				} else {

    					this._x = 0;
    					this._y = Math.atan2( m13, m33 );

    				}

    				break;

    			case 'XZY':

    				this._z = Math.asin( - clamp( m12, - 1, 1 ) );

    				if ( Math.abs( m12 ) < 0.9999999 ) {

    					this._x = Math.atan2( m32, m22 );
    					this._y = Math.atan2( m13, m11 );

    				} else {

    					this._x = Math.atan2( - m23, m33 );
    					this._y = 0;

    				}

    				break;

    			default:

    				console.warn( 'THREE.Euler: .setFromRotationMatrix() encountered an unknown order: ' + order );

    		}

    		this._order = order;

    		if ( update === true ) this._onChangeCallback();

    		return this;

    	}

    	setFromQuaternion( q, order, update ) {

    		_matrix$1.makeRotationFromQuaternion( q );

    		return this.setFromRotationMatrix( _matrix$1, order, update );

    	}

    	setFromVector3( v, order = this._order ) {

    		return this.set( v.x, v.y, v.z, order );

    	}

    	reorder( newOrder ) {

    		// WARNING: this discards revolution information -bhouston

    		_quaternion$3.setFromEuler( this );

    		return this.setFromQuaternion( _quaternion$3, newOrder );

    	}

    	equals( euler ) {

    		return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );

    	}

    	fromArray( array ) {

    		this._x = array[ 0 ];
    		this._y = array[ 1 ];
    		this._z = array[ 2 ];
    		if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];

    		this._onChangeCallback();

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		array[ offset ] = this._x;
    		array[ offset + 1 ] = this._y;
    		array[ offset + 2 ] = this._z;
    		array[ offset + 3 ] = this._order;

    		return array;

    	}

    	_onChange( callback ) {

    		this._onChangeCallback = callback;

    		return this;

    	}

    	_onChangeCallback() {}

    	*[ Symbol.iterator ]() {

    		yield this._x;
    		yield this._y;
    		yield this._z;
    		yield this._order;

    	}

    	// @deprecated since r138, 02cf0df1cb4575d5842fef9c85bb5a89fe020d53

    	toVector3() {

    		console.error( 'THREE.Euler: .toVector3() has been removed. Use Vector3.setFromEuler() instead' );

    	}

    }

    Euler.DefaultOrder = 'XYZ';
    Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];

    class Layers {

    	constructor() {

    		this.mask = 1 | 0;

    	}

    	set( channel ) {

    		this.mask = ( 1 << channel | 0 ) >>> 0;

    	}

    	enable( channel ) {

    		this.mask |= 1 << channel | 0;

    	}

    	enableAll() {

    		this.mask = 0xffffffff | 0;

    	}

    	toggle( channel ) {

    		this.mask ^= 1 << channel | 0;

    	}

    	disable( channel ) {

    		this.mask &= ~ ( 1 << channel | 0 );

    	}

    	disableAll() {

    		this.mask = 0;

    	}

    	test( layers ) {

    		return ( this.mask & layers.mask ) !== 0;

    	}

    	isEnabled( channel ) {

    		return ( this.mask & ( 1 << channel | 0 ) ) !== 0;

    	}

    }

    let _object3DId = 0;

    const _v1$4 = /*@__PURE__*/ new Vector3();
    const _q1 = /*@__PURE__*/ new Quaternion();
    const _m1$1 = /*@__PURE__*/ new Matrix4();
    const _target = /*@__PURE__*/ new Vector3();

    const _position$3 = /*@__PURE__*/ new Vector3();
    const _scale$2 = /*@__PURE__*/ new Vector3();
    const _quaternion$2 = /*@__PURE__*/ new Quaternion();

    const _xAxis = /*@__PURE__*/ new Vector3( 1, 0, 0 );
    const _yAxis = /*@__PURE__*/ new Vector3( 0, 1, 0 );
    const _zAxis = /*@__PURE__*/ new Vector3( 0, 0, 1 );

    const _addedEvent = { type: 'added' };
    const _removedEvent = { type: 'removed' };

    class Object3D extends EventDispatcher {

    	constructor() {

    		super();

    		this.isObject3D = true;

    		Object.defineProperty( this, 'id', { value: _object3DId ++ } );

    		this.uuid = generateUUID();

    		this.name = '';
    		this.type = 'Object3D';

    		this.parent = null;
    		this.children = [];

    		this.up = Object3D.DefaultUp.clone();

    		const position = new Vector3();
    		const rotation = new Euler();
    		const quaternion = new Quaternion();
    		const scale = new Vector3( 1, 1, 1 );

    		function onRotationChange() {

    			quaternion.setFromEuler( rotation, false );

    		}

    		function onQuaternionChange() {

    			rotation.setFromQuaternion( quaternion, undefined, false );

    		}

    		rotation._onChange( onRotationChange );
    		quaternion._onChange( onQuaternionChange );

    		Object.defineProperties( this, {
    			position: {
    				configurable: true,
    				enumerable: true,
    				value: position
    			},
    			rotation: {
    				configurable: true,
    				enumerable: true,
    				value: rotation
    			},
    			quaternion: {
    				configurable: true,
    				enumerable: true,
    				value: quaternion
    			},
    			scale: {
    				configurable: true,
    				enumerable: true,
    				value: scale
    			},
    			modelViewMatrix: {
    				value: new Matrix4()
    			},
    			normalMatrix: {
    				value: new Matrix3()
    			}
    		} );

    		this.matrix = new Matrix4();
    		this.matrixWorld = new Matrix4();

    		this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
    		this.matrixWorldNeedsUpdate = false;

    		this.matrixWorldAutoUpdate = Object3D.DefaultMatrixWorldAutoUpdate; // checked by the renderer

    		this.layers = new Layers();
    		this.visible = true;

    		this.castShadow = false;
    		this.receiveShadow = false;

    		this.frustumCulled = true;
    		this.renderOrder = 0;

    		this.animations = [];

    		this.userData = {};

    	}

    	onBeforeRender( /* renderer, scene, camera, geometry, material, group */ ) {}

    	onAfterRender( /* renderer, scene, camera, geometry, material, group */ ) {}

    	applyMatrix4( matrix ) {

    		if ( this.matrixAutoUpdate ) this.updateMatrix();

    		this.matrix.premultiply( matrix );

    		this.matrix.decompose( this.position, this.quaternion, this.scale );

    	}

    	applyQuaternion( q ) {

    		this.quaternion.premultiply( q );

    		return this;

    	}

    	setRotationFromAxisAngle( axis, angle ) {

    		// assumes axis is normalized

    		this.quaternion.setFromAxisAngle( axis, angle );

    	}

    	setRotationFromEuler( euler ) {

    		this.quaternion.setFromEuler( euler, true );

    	}

    	setRotationFromMatrix( m ) {

    		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

    		this.quaternion.setFromRotationMatrix( m );

    	}

    	setRotationFromQuaternion( q ) {

    		// assumes q is normalized

    		this.quaternion.copy( q );

    	}

    	rotateOnAxis( axis, angle ) {

    		// rotate object on axis in object space
    		// axis is assumed to be normalized

    		_q1.setFromAxisAngle( axis, angle );

    		this.quaternion.multiply( _q1 );

    		return this;

    	}

    	rotateOnWorldAxis( axis, angle ) {

    		// rotate object on axis in world space
    		// axis is assumed to be normalized
    		// method assumes no rotated parent

    		_q1.setFromAxisAngle( axis, angle );

    		this.quaternion.premultiply( _q1 );

    		return this;

    	}

    	rotateX( angle ) {

    		return this.rotateOnAxis( _xAxis, angle );

    	}

    	rotateY( angle ) {

    		return this.rotateOnAxis( _yAxis, angle );

    	}

    	rotateZ( angle ) {

    		return this.rotateOnAxis( _zAxis, angle );

    	}

    	translateOnAxis( axis, distance ) {

    		// translate object by distance along axis in object space
    		// axis is assumed to be normalized

    		_v1$4.copy( axis ).applyQuaternion( this.quaternion );

    		this.position.add( _v1$4.multiplyScalar( distance ) );

    		return this;

    	}

    	translateX( distance ) {

    		return this.translateOnAxis( _xAxis, distance );

    	}

    	translateY( distance ) {

    		return this.translateOnAxis( _yAxis, distance );

    	}

    	translateZ( distance ) {

    		return this.translateOnAxis( _zAxis, distance );

    	}

    	localToWorld( vector ) {

    		return vector.applyMatrix4( this.matrixWorld );

    	}

    	worldToLocal( vector ) {

    		return vector.applyMatrix4( _m1$1.copy( this.matrixWorld ).invert() );

    	}

    	lookAt( x, y, z ) {

    		// This method does not support objects having non-uniformly-scaled parent(s)

    		if ( x.isVector3 ) {

    			_target.copy( x );

    		} else {

    			_target.set( x, y, z );

    		}

    		const parent = this.parent;

    		this.updateWorldMatrix( true, false );

    		_position$3.setFromMatrixPosition( this.matrixWorld );

    		if ( this.isCamera || this.isLight ) {

    			_m1$1.lookAt( _position$3, _target, this.up );

    		} else {

    			_m1$1.lookAt( _target, _position$3, this.up );

    		}

    		this.quaternion.setFromRotationMatrix( _m1$1 );

    		if ( parent ) {

    			_m1$1.extractRotation( parent.matrixWorld );
    			_q1.setFromRotationMatrix( _m1$1 );
    			this.quaternion.premultiply( _q1.invert() );

    		}

    	}

    	add( object ) {

    		if ( arguments.length > 1 ) {

    			for ( let i = 0; i < arguments.length; i ++ ) {

    				this.add( arguments[ i ] );

    			}

    			return this;

    		}

    		if ( object === this ) {

    			console.error( 'THREE.Object3D.add: object can\'t be added as a child of itself.', object );
    			return this;

    		}

    		if ( object && object.isObject3D ) {

    			if ( object.parent !== null ) {

    				object.parent.remove( object );

    			}

    			object.parent = this;
    			this.children.push( object );

    			object.dispatchEvent( _addedEvent );

    		} else {

    			console.error( 'THREE.Object3D.add: object not an instance of THREE.Object3D.', object );

    		}

    		return this;

    	}

    	remove( object ) {

    		if ( arguments.length > 1 ) {

    			for ( let i = 0; i < arguments.length; i ++ ) {

    				this.remove( arguments[ i ] );

    			}

    			return this;

    		}

    		const index = this.children.indexOf( object );

    		if ( index !== - 1 ) {

    			object.parent = null;
    			this.children.splice( index, 1 );

    			object.dispatchEvent( _removedEvent );

    		}

    		return this;

    	}

    	removeFromParent() {

    		const parent = this.parent;

    		if ( parent !== null ) {

    			parent.remove( this );

    		}

    		return this;

    	}

    	clear() {

    		for ( let i = 0; i < this.children.length; i ++ ) {

    			const object = this.children[ i ];

    			object.parent = null;

    			object.dispatchEvent( _removedEvent );

    		}

    		this.children.length = 0;

    		return this;


    	}

    	attach( object ) {

    		// adds object as a child of this, while maintaining the object's world transform

    		// Note: This method does not support scene graphs having non-uniformly-scaled nodes(s)

    		this.updateWorldMatrix( true, false );

    		_m1$1.copy( this.matrixWorld ).invert();

    		if ( object.parent !== null ) {

    			object.parent.updateWorldMatrix( true, false );

    			_m1$1.multiply( object.parent.matrixWorld );

    		}

    		object.applyMatrix4( _m1$1 );

    		this.add( object );

    		object.updateWorldMatrix( false, true );

    		return this;

    	}

    	getObjectById( id ) {

    		return this.getObjectByProperty( 'id', id );

    	}

    	getObjectByName( name ) {

    		return this.getObjectByProperty( 'name', name );

    	}

    	getObjectByProperty( name, value ) {

    		if ( this[ name ] === value ) return this;

    		for ( let i = 0, l = this.children.length; i < l; i ++ ) {

    			const child = this.children[ i ];
    			const object = child.getObjectByProperty( name, value );

    			if ( object !== undefined ) {

    				return object;

    			}

    		}

    		return undefined;

    	}

    	getWorldPosition( target ) {

    		this.updateWorldMatrix( true, false );

    		return target.setFromMatrixPosition( this.matrixWorld );

    	}

    	getWorldQuaternion( target ) {

    		this.updateWorldMatrix( true, false );

    		this.matrixWorld.decompose( _position$3, target, _scale$2 );

    		return target;

    	}

    	getWorldScale( target ) {

    		this.updateWorldMatrix( true, false );

    		this.matrixWorld.decompose( _position$3, _quaternion$2, target );

    		return target;

    	}

    	getWorldDirection( target ) {

    		this.updateWorldMatrix( true, false );

    		const e = this.matrixWorld.elements;

    		return target.set( e[ 8 ], e[ 9 ], e[ 10 ] ).normalize();

    	}

    	raycast( /* raycaster, intersects */ ) {}

    	traverse( callback ) {

    		callback( this );

    		const children = this.children;

    		for ( let i = 0, l = children.length; i < l; i ++ ) {

    			children[ i ].traverse( callback );

    		}

    	}

    	traverseVisible( callback ) {

    		if ( this.visible === false ) return;

    		callback( this );

    		const children = this.children;

    		for ( let i = 0, l = children.length; i < l; i ++ ) {

    			children[ i ].traverseVisible( callback );

    		}

    	}

    	traverseAncestors( callback ) {

    		const parent = this.parent;

    		if ( parent !== null ) {

    			callback( parent );

    			parent.traverseAncestors( callback );

    		}

    	}

    	updateMatrix() {

    		this.matrix.compose( this.position, this.quaternion, this.scale );

    		this.matrixWorldNeedsUpdate = true;

    	}

    	updateMatrixWorld( force ) {

    		if ( this.matrixAutoUpdate ) this.updateMatrix();

    		if ( this.matrixWorldNeedsUpdate || force ) {

    			if ( this.parent === null ) {

    				this.matrixWorld.copy( this.matrix );

    			} else {

    				this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );

    			}

    			this.matrixWorldNeedsUpdate = false;

    			force = true;

    		}

    		// update children

    		const children = this.children;

    		for ( let i = 0, l = children.length; i < l; i ++ ) {

    			const child = children[ i ];

    			if ( child.matrixWorldAutoUpdate === true || force === true ) {

    				child.updateMatrixWorld( force );

    			}

    		}

    	}

    	updateWorldMatrix( updateParents, updateChildren ) {

    		const parent = this.parent;

    		if ( updateParents === true && parent !== null && parent.matrixWorldAutoUpdate === true ) {

    			parent.updateWorldMatrix( true, false );

    		}

    		if ( this.matrixAutoUpdate ) this.updateMatrix();

    		if ( this.parent === null ) {

    			this.matrixWorld.copy( this.matrix );

    		} else {

    			this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );

    		}

    		// update children

    		if ( updateChildren === true ) {

    			const children = this.children;

    			for ( let i = 0, l = children.length; i < l; i ++ ) {

    				const child = children[ i ];

    				if ( child.matrixWorldAutoUpdate === true ) {

    					child.updateWorldMatrix( false, true );

    				}

    			}

    		}

    	}

    	toJSON( meta ) {

    		// meta is a string when called from JSON.stringify
    		const isRootObject = ( meta === undefined || typeof meta === 'string' );

    		const output = {};

    		// meta is a hash used to collect geometries, materials.
    		// not providing it implies that this is the root object
    		// being serialized.
    		if ( isRootObject ) {

    			// initialize meta obj
    			meta = {
    				geometries: {},
    				materials: {},
    				textures: {},
    				images: {},
    				shapes: {},
    				skeletons: {},
    				animations: {},
    				nodes: {}
    			};

    			output.metadata = {
    				version: 4.5,
    				type: 'Object',
    				generator: 'Object3D.toJSON'
    			};

    		}

    		// standard Object3D serialization

    		const object = {};

    		object.uuid = this.uuid;
    		object.type = this.type;

    		if ( this.name !== '' ) object.name = this.name;
    		if ( this.castShadow === true ) object.castShadow = true;
    		if ( this.receiveShadow === true ) object.receiveShadow = true;
    		if ( this.visible === false ) object.visible = false;
    		if ( this.frustumCulled === false ) object.frustumCulled = false;
    		if ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder;
    		if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;

    		object.layers = this.layers.mask;
    		object.matrix = this.matrix.toArray();

    		if ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false;

    		// object specific properties

    		if ( this.isInstancedMesh ) {

    			object.type = 'InstancedMesh';
    			object.count = this.count;
    			object.instanceMatrix = this.instanceMatrix.toJSON();
    			if ( this.instanceColor !== null ) object.instanceColor = this.instanceColor.toJSON();

    		}

    		//

    		function serialize( library, element ) {

    			if ( library[ element.uuid ] === undefined ) {

    				library[ element.uuid ] = element.toJSON( meta );

    			}

    			return element.uuid;

    		}

    		if ( this.isScene ) {

    			if ( this.background ) {

    				if ( this.background.isColor ) {

    					object.background = this.background.toJSON();

    				} else if ( this.background.isTexture ) {

    					object.background = this.background.toJSON( meta ).uuid;

    				}

    			}

    			if ( this.environment && this.environment.isTexture && this.environment.isRenderTargetTexture !== true ) {

    				object.environment = this.environment.toJSON( meta ).uuid;

    			}

    		} else if ( this.isMesh || this.isLine || this.isPoints ) {

    			object.geometry = serialize( meta.geometries, this.geometry );

    			const parameters = this.geometry.parameters;

    			if ( parameters !== undefined && parameters.shapes !== undefined ) {

    				const shapes = parameters.shapes;

    				if ( Array.isArray( shapes ) ) {

    					for ( let i = 0, l = shapes.length; i < l; i ++ ) {

    						const shape = shapes[ i ];

    						serialize( meta.shapes, shape );

    					}

    				} else {

    					serialize( meta.shapes, shapes );

    				}

    			}

    		}

    		if ( this.isSkinnedMesh ) {

    			object.bindMode = this.bindMode;
    			object.bindMatrix = this.bindMatrix.toArray();

    			if ( this.skeleton !== undefined ) {

    				serialize( meta.skeletons, this.skeleton );

    				object.skeleton = this.skeleton.uuid;

    			}

    		}

    		if ( this.material !== undefined ) {

    			if ( Array.isArray( this.material ) ) {

    				const uuids = [];

    				for ( let i = 0, l = this.material.length; i < l; i ++ ) {

    					uuids.push( serialize( meta.materials, this.material[ i ] ) );

    				}

    				object.material = uuids;

    			} else {

    				object.material = serialize( meta.materials, this.material );

    			}

    		}

    		//

    		if ( this.children.length > 0 ) {

    			object.children = [];

    			for ( let i = 0; i < this.children.length; i ++ ) {

    				object.children.push( this.children[ i ].toJSON( meta ).object );

    			}

    		}

    		//

    		if ( this.animations.length > 0 ) {

    			object.animations = [];

    			for ( let i = 0; i < this.animations.length; i ++ ) {

    				const animation = this.animations[ i ];

    				object.animations.push( serialize( meta.animations, animation ) );

    			}

    		}

    		if ( isRootObject ) {

    			const geometries = extractFromCache( meta.geometries );
    			const materials = extractFromCache( meta.materials );
    			const textures = extractFromCache( meta.textures );
    			const images = extractFromCache( meta.images );
    			const shapes = extractFromCache( meta.shapes );
    			const skeletons = extractFromCache( meta.skeletons );
    			const animations = extractFromCache( meta.animations );
    			const nodes = extractFromCache( meta.nodes );

    			if ( geometries.length > 0 ) output.geometries = geometries;
    			if ( materials.length > 0 ) output.materials = materials;
    			if ( textures.length > 0 ) output.textures = textures;
    			if ( images.length > 0 ) output.images = images;
    			if ( shapes.length > 0 ) output.shapes = shapes;
    			if ( skeletons.length > 0 ) output.skeletons = skeletons;
    			if ( animations.length > 0 ) output.animations = animations;
    			if ( nodes.length > 0 ) output.nodes = nodes;

    		}

    		output.object = object;

    		return output;

    		// extract data from the cache hash
    		// remove metadata on each item
    		// and return as array
    		function extractFromCache( cache ) {

    			const values = [];
    			for ( const key in cache ) {

    				const data = cache[ key ];
    				delete data.metadata;
    				values.push( data );

    			}

    			return values;

    		}

    	}

    	clone( recursive ) {

    		return new this.constructor().copy( this, recursive );

    	}

    	copy( source, recursive = true ) {

    		this.name = source.name;

    		this.up.copy( source.up );

    		this.position.copy( source.position );
    		this.rotation.order = source.rotation.order;
    		this.quaternion.copy( source.quaternion );
    		this.scale.copy( source.scale );

    		this.matrix.copy( source.matrix );
    		this.matrixWorld.copy( source.matrixWorld );

    		this.matrixAutoUpdate = source.matrixAutoUpdate;
    		this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;

    		this.matrixWorldAutoUpdate = source.matrixWorldAutoUpdate;

    		this.layers.mask = source.layers.mask;
    		this.visible = source.visible;

    		this.castShadow = source.castShadow;
    		this.receiveShadow = source.receiveShadow;

    		this.frustumCulled = source.frustumCulled;
    		this.renderOrder = source.renderOrder;

    		this.userData = JSON.parse( JSON.stringify( source.userData ) );

    		if ( recursive === true ) {

    			for ( let i = 0; i < source.children.length; i ++ ) {

    				const child = source.children[ i ];
    				this.add( child.clone() );

    			}

    		}

    		return this;

    	}

    }

    Object3D.DefaultUp = /*@__PURE__*/ new Vector3( 0, 1, 0 );
    Object3D.DefaultMatrixAutoUpdate = true;
    Object3D.DefaultMatrixWorldAutoUpdate = true;

    const _v0$1 = /*@__PURE__*/ new Vector3();
    const _v1$3 = /*@__PURE__*/ new Vector3();
    const _v2$2 = /*@__PURE__*/ new Vector3();
    const _v3$1 = /*@__PURE__*/ new Vector3();

    const _vab = /*@__PURE__*/ new Vector3();
    const _vac = /*@__PURE__*/ new Vector3();
    const _vbc = /*@__PURE__*/ new Vector3();
    const _vap = /*@__PURE__*/ new Vector3();
    const _vbp = /*@__PURE__*/ new Vector3();
    const _vcp = /*@__PURE__*/ new Vector3();

    class Triangle {

    	constructor( a = new Vector3(), b = new Vector3(), c = new Vector3() ) {

    		this.a = a;
    		this.b = b;
    		this.c = c;

    	}

    	static getNormal( a, b, c, target ) {

    		target.subVectors( c, b );
    		_v0$1.subVectors( a, b );
    		target.cross( _v0$1 );

    		const targetLengthSq = target.lengthSq();
    		if ( targetLengthSq > 0 ) {

    			return target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) );

    		}

    		return target.set( 0, 0, 0 );

    	}

    	// static/instance method to calculate barycentric coordinates
    	// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
    	static getBarycoord( point, a, b, c, target ) {

    		_v0$1.subVectors( c, a );
    		_v1$3.subVectors( b, a );
    		_v2$2.subVectors( point, a );

    		const dot00 = _v0$1.dot( _v0$1 );
    		const dot01 = _v0$1.dot( _v1$3 );
    		const dot02 = _v0$1.dot( _v2$2 );
    		const dot11 = _v1$3.dot( _v1$3 );
    		const dot12 = _v1$3.dot( _v2$2 );

    		const denom = ( dot00 * dot11 - dot01 * dot01 );

    		// collinear or singular triangle
    		if ( denom === 0 ) {

    			// arbitrary location outside of triangle?
    			// not sure if this is the best idea, maybe should be returning undefined
    			return target.set( - 2, - 1, - 1 );

    		}

    		const invDenom = 1 / denom;
    		const u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
    		const v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;

    		// barycentric coordinates must always sum to 1
    		return target.set( 1 - u - v, v, u );

    	}

    	static containsPoint( point, a, b, c ) {

    		this.getBarycoord( point, a, b, c, _v3$1 );

    		return ( _v3$1.x >= 0 ) && ( _v3$1.y >= 0 ) && ( ( _v3$1.x + _v3$1.y ) <= 1 );

    	}

    	static getUV( point, p1, p2, p3, uv1, uv2, uv3, target ) {

    		this.getBarycoord( point, p1, p2, p3, _v3$1 );

    		target.set( 0, 0 );
    		target.addScaledVector( uv1, _v3$1.x );
    		target.addScaledVector( uv2, _v3$1.y );
    		target.addScaledVector( uv3, _v3$1.z );

    		return target;

    	}

    	static isFrontFacing( a, b, c, direction ) {

    		_v0$1.subVectors( c, b );
    		_v1$3.subVectors( a, b );

    		// strictly front facing
    		return ( _v0$1.cross( _v1$3 ).dot( direction ) < 0 ) ? true : false;

    	}

    	set( a, b, c ) {

    		this.a.copy( a );
    		this.b.copy( b );
    		this.c.copy( c );

    		return this;

    	}

    	setFromPointsAndIndices( points, i0, i1, i2 ) {

    		this.a.copy( points[ i0 ] );
    		this.b.copy( points[ i1 ] );
    		this.c.copy( points[ i2 ] );

    		return this;

    	}

    	setFromAttributeAndIndices( attribute, i0, i1, i2 ) {

    		this.a.fromBufferAttribute( attribute, i0 );
    		this.b.fromBufferAttribute( attribute, i1 );
    		this.c.fromBufferAttribute( attribute, i2 );

    		return this;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	copy( triangle ) {

    		this.a.copy( triangle.a );
    		this.b.copy( triangle.b );
    		this.c.copy( triangle.c );

    		return this;

    	}

    	getArea() {

    		_v0$1.subVectors( this.c, this.b );
    		_v1$3.subVectors( this.a, this.b );

    		return _v0$1.cross( _v1$3 ).length() * 0.5;

    	}

    	getMidpoint( target ) {

    		return target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );

    	}

    	getNormal( target ) {

    		return Triangle.getNormal( this.a, this.b, this.c, target );

    	}

    	getPlane( target ) {

    		return target.setFromCoplanarPoints( this.a, this.b, this.c );

    	}

    	getBarycoord( point, target ) {

    		return Triangle.getBarycoord( point, this.a, this.b, this.c, target );

    	}

    	getUV( point, uv1, uv2, uv3, target ) {

    		return Triangle.getUV( point, this.a, this.b, this.c, uv1, uv2, uv3, target );

    	}

    	containsPoint( point ) {

    		return Triangle.containsPoint( point, this.a, this.b, this.c );

    	}

    	isFrontFacing( direction ) {

    		return Triangle.isFrontFacing( this.a, this.b, this.c, direction );

    	}

    	intersectsBox( box ) {

    		return box.intersectsTriangle( this );

    	}

    	closestPointToPoint( p, target ) {

    		const a = this.a, b = this.b, c = this.c;
    		let v, w;

    		// algorithm thanks to Real-Time Collision Detection by Christer Ericson,
    		// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
    		// under the accompanying license; see chapter 5.1.5 for detailed explanation.
    		// basically, we're distinguishing which of the voronoi regions of the triangle
    		// the point lies in with the minimum amount of redundant computation.

    		_vab.subVectors( b, a );
    		_vac.subVectors( c, a );
    		_vap.subVectors( p, a );
    		const d1 = _vab.dot( _vap );
    		const d2 = _vac.dot( _vap );
    		if ( d1 <= 0 && d2 <= 0 ) {

    			// vertex region of A; barycentric coords (1, 0, 0)
    			return target.copy( a );

    		}

    		_vbp.subVectors( p, b );
    		const d3 = _vab.dot( _vbp );
    		const d4 = _vac.dot( _vbp );
    		if ( d3 >= 0 && d4 <= d3 ) {

    			// vertex region of B; barycentric coords (0, 1, 0)
    			return target.copy( b );

    		}

    		const vc = d1 * d4 - d3 * d2;
    		if ( vc <= 0 && d1 >= 0 && d3 <= 0 ) {

    			v = d1 / ( d1 - d3 );
    			// edge region of AB; barycentric coords (1-v, v, 0)
    			return target.copy( a ).addScaledVector( _vab, v );

    		}

    		_vcp.subVectors( p, c );
    		const d5 = _vab.dot( _vcp );
    		const d6 = _vac.dot( _vcp );
    		if ( d6 >= 0 && d5 <= d6 ) {

    			// vertex region of C; barycentric coords (0, 0, 1)
    			return target.copy( c );

    		}

    		const vb = d5 * d2 - d1 * d6;
    		if ( vb <= 0 && d2 >= 0 && d6 <= 0 ) {

    			w = d2 / ( d2 - d6 );
    			// edge region of AC; barycentric coords (1-w, 0, w)
    			return target.copy( a ).addScaledVector( _vac, w );

    		}

    		const va = d3 * d6 - d5 * d4;
    		if ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) {

    			_vbc.subVectors( c, b );
    			w = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) );
    			// edge region of BC; barycentric coords (0, 1-w, w)
    			return target.copy( b ).addScaledVector( _vbc, w ); // edge region of BC

    		}

    		// face region
    		const denom = 1 / ( va + vb + vc );
    		// u = va * denom
    		v = vb * denom;
    		w = vc * denom;

    		return target.copy( a ).addScaledVector( _vab, v ).addScaledVector( _vac, w );

    	}

    	equals( triangle ) {

    		return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );

    	}

    }

    let materialId = 0;

    class Material extends EventDispatcher {

    	constructor() {

    		super();

    		this.isMaterial = true;

    		Object.defineProperty( this, 'id', { value: materialId ++ } );

    		this.uuid = generateUUID();

    		this.name = '';
    		this.type = 'Material';

    		this.blending = NormalBlending;
    		this.side = FrontSide;
    		this.vertexColors = false;

    		this.opacity = 1;
    		this.transparent = false;

    		this.blendSrc = SrcAlphaFactor;
    		this.blendDst = OneMinusSrcAlphaFactor;
    		this.blendEquation = AddEquation;
    		this.blendSrcAlpha = null;
    		this.blendDstAlpha = null;
    		this.blendEquationAlpha = null;

    		this.depthFunc = LessEqualDepth;
    		this.depthTest = true;
    		this.depthWrite = true;

    		this.stencilWriteMask = 0xff;
    		this.stencilFunc = AlwaysStencilFunc;
    		this.stencilRef = 0;
    		this.stencilFuncMask = 0xff;
    		this.stencilFail = KeepStencilOp;
    		this.stencilZFail = KeepStencilOp;
    		this.stencilZPass = KeepStencilOp;
    		this.stencilWrite = false;

    		this.clippingPlanes = null;
    		this.clipIntersection = false;
    		this.clipShadows = false;

    		this.shadowSide = null;

    		this.colorWrite = true;

    		this.precision = null; // override the renderer's default precision for this material

    		this.polygonOffset = false;
    		this.polygonOffsetFactor = 0;
    		this.polygonOffsetUnits = 0;

    		this.dithering = false;

    		this.alphaToCoverage = false;
    		this.premultipliedAlpha = false;

    		this.visible = true;

    		this.toneMapped = true;

    		this.userData = {};

    		this.version = 0;

    		this._alphaTest = 0;

    	}

    	get alphaTest() {

    		return this._alphaTest;

    	}

    	set alphaTest( value ) {

    		if ( this._alphaTest > 0 !== value > 0 ) {

    			this.version ++;

    		}

    		this._alphaTest = value;

    	}

    	onBuild( /* shaderobject, renderer */ ) {}

    	onBeforeRender( /* renderer, scene, camera, geometry, object, group */ ) {}

    	onBeforeCompile( /* shaderobject, renderer */ ) {}

    	customProgramCacheKey() {

    		return this.onBeforeCompile.toString();

    	}

    	setValues( values ) {

    		if ( values === undefined ) return;

    		for ( const key in values ) {

    			const newValue = values[ key ];

    			if ( newValue === undefined ) {

    				console.warn( 'THREE.Material: \'' + key + '\' parameter is undefined.' );
    				continue;

    			}

    			const currentValue = this[ key ];

    			if ( currentValue === undefined ) {

    				console.warn( 'THREE.' + this.type + ': \'' + key + '\' is not a property of this material.' );
    				continue;

    			}

    			if ( currentValue && currentValue.isColor ) {

    				currentValue.set( newValue );

    			} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {

    				currentValue.copy( newValue );

    			} else {

    				this[ key ] = newValue;

    			}

    		}

    	}

    	toJSON( meta ) {

    		const isRootObject = ( meta === undefined || typeof meta === 'string' );

    		if ( isRootObject ) {

    			meta = {
    				textures: {},
    				images: {}
    			};

    		}

    		const data = {
    			metadata: {
    				version: 4.5,
    				type: 'Material',
    				generator: 'Material.toJSON'
    			}
    		};

    		// standard Material serialization
    		data.uuid = this.uuid;
    		data.type = this.type;

    		if ( this.name !== '' ) data.name = this.name;

    		if ( this.color && this.color.isColor ) data.color = this.color.getHex();

    		if ( this.roughness !== undefined ) data.roughness = this.roughness;
    		if ( this.metalness !== undefined ) data.metalness = this.metalness;

    		if ( this.sheen !== undefined ) data.sheen = this.sheen;
    		if ( this.sheenColor && this.sheenColor.isColor ) data.sheenColor = this.sheenColor.getHex();
    		if ( this.sheenRoughness !== undefined ) data.sheenRoughness = this.sheenRoughness;
    		if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
    		if ( this.emissiveIntensity && this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;

    		if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
    		if ( this.specularIntensity !== undefined ) data.specularIntensity = this.specularIntensity;
    		if ( this.specularColor && this.specularColor.isColor ) data.specularColor = this.specularColor.getHex();
    		if ( this.shininess !== undefined ) data.shininess = this.shininess;
    		if ( this.clearcoat !== undefined ) data.clearcoat = this.clearcoat;
    		if ( this.clearcoatRoughness !== undefined ) data.clearcoatRoughness = this.clearcoatRoughness;

    		if ( this.clearcoatMap && this.clearcoatMap.isTexture ) {

    			data.clearcoatMap = this.clearcoatMap.toJSON( meta ).uuid;

    		}

    		if ( this.clearcoatRoughnessMap && this.clearcoatRoughnessMap.isTexture ) {

    			data.clearcoatRoughnessMap = this.clearcoatRoughnessMap.toJSON( meta ).uuid;

    		}

    		if ( this.clearcoatNormalMap && this.clearcoatNormalMap.isTexture ) {

    			data.clearcoatNormalMap = this.clearcoatNormalMap.toJSON( meta ).uuid;
    			data.clearcoatNormalScale = this.clearcoatNormalScale.toArray();

    		}

    		if ( this.iridescence !== undefined ) data.iridescence = this.iridescence;
    		if ( this.iridescenceIOR !== undefined ) data.iridescenceIOR = this.iridescenceIOR;
    		if ( this.iridescenceThicknessRange !== undefined ) data.iridescenceThicknessRange = this.iridescenceThicknessRange;

    		if ( this.iridescenceMap && this.iridescenceMap.isTexture ) {

    			data.iridescenceMap = this.iridescenceMap.toJSON( meta ).uuid;

    		}

    		if ( this.iridescenceThicknessMap && this.iridescenceThicknessMap.isTexture ) {

    			data.iridescenceThicknessMap = this.iridescenceThicknessMap.toJSON( meta ).uuid;

    		}

    		if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;
    		if ( this.matcap && this.matcap.isTexture ) data.matcap = this.matcap.toJSON( meta ).uuid;
    		if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;

    		if ( this.lightMap && this.lightMap.isTexture ) {

    			data.lightMap = this.lightMap.toJSON( meta ).uuid;
    			data.lightMapIntensity = this.lightMapIntensity;

    		}

    		if ( this.aoMap && this.aoMap.isTexture ) {

    			data.aoMap = this.aoMap.toJSON( meta ).uuid;
    			data.aoMapIntensity = this.aoMapIntensity;

    		}

    		if ( this.bumpMap && this.bumpMap.isTexture ) {

    			data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
    			data.bumpScale = this.bumpScale;

    		}

    		if ( this.normalMap && this.normalMap.isTexture ) {

    			data.normalMap = this.normalMap.toJSON( meta ).uuid;
    			data.normalMapType = this.normalMapType;
    			data.normalScale = this.normalScale.toArray();

    		}

    		if ( this.displacementMap && this.displacementMap.isTexture ) {

    			data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
    			data.displacementScale = this.displacementScale;
    			data.displacementBias = this.displacementBias;

    		}

    		if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
    		if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;

    		if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
    		if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;
    		if ( this.specularIntensityMap && this.specularIntensityMap.isTexture ) data.specularIntensityMap = this.specularIntensityMap.toJSON( meta ).uuid;
    		if ( this.specularColorMap && this.specularColorMap.isTexture ) data.specularColorMap = this.specularColorMap.toJSON( meta ).uuid;

    		if ( this.envMap && this.envMap.isTexture ) {

    			data.envMap = this.envMap.toJSON( meta ).uuid;

    			if ( this.combine !== undefined ) data.combine = this.combine;

    		}

    		if ( this.envMapIntensity !== undefined ) data.envMapIntensity = this.envMapIntensity;
    		if ( this.reflectivity !== undefined ) data.reflectivity = this.reflectivity;
    		if ( this.refractionRatio !== undefined ) data.refractionRatio = this.refractionRatio;

    		if ( this.gradientMap && this.gradientMap.isTexture ) {

    			data.gradientMap = this.gradientMap.toJSON( meta ).uuid;

    		}

    		if ( this.transmission !== undefined ) data.transmission = this.transmission;
    		if ( this.transmissionMap && this.transmissionMap.isTexture ) data.transmissionMap = this.transmissionMap.toJSON( meta ).uuid;
    		if ( this.thickness !== undefined ) data.thickness = this.thickness;
    		if ( this.thicknessMap && this.thicknessMap.isTexture ) data.thicknessMap = this.thicknessMap.toJSON( meta ).uuid;
    		if ( this.attenuationDistance !== undefined ) data.attenuationDistance = this.attenuationDistance;
    		if ( this.attenuationColor !== undefined ) data.attenuationColor = this.attenuationColor.getHex();

    		if ( this.size !== undefined ) data.size = this.size;
    		if ( this.shadowSide !== null ) data.shadowSide = this.shadowSide;
    		if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;

    		if ( this.blending !== NormalBlending ) data.blending = this.blending;
    		if ( this.side !== FrontSide ) data.side = this.side;
    		if ( this.vertexColors ) data.vertexColors = true;

    		if ( this.opacity < 1 ) data.opacity = this.opacity;
    		if ( this.transparent === true ) data.transparent = this.transparent;

    		data.depthFunc = this.depthFunc;
    		data.depthTest = this.depthTest;
    		data.depthWrite = this.depthWrite;
    		data.colorWrite = this.colorWrite;

    		data.stencilWrite = this.stencilWrite;
    		data.stencilWriteMask = this.stencilWriteMask;
    		data.stencilFunc = this.stencilFunc;
    		data.stencilRef = this.stencilRef;
    		data.stencilFuncMask = this.stencilFuncMask;
    		data.stencilFail = this.stencilFail;
    		data.stencilZFail = this.stencilZFail;
    		data.stencilZPass = this.stencilZPass;

    		// rotation (SpriteMaterial)
    		if ( this.rotation !== undefined && this.rotation !== 0 ) data.rotation = this.rotation;

    		if ( this.polygonOffset === true ) data.polygonOffset = true;
    		if ( this.polygonOffsetFactor !== 0 ) data.polygonOffsetFactor = this.polygonOffsetFactor;
    		if ( this.polygonOffsetUnits !== 0 ) data.polygonOffsetUnits = this.polygonOffsetUnits;

    		if ( this.linewidth !== undefined && this.linewidth !== 1 ) data.linewidth = this.linewidth;
    		if ( this.dashSize !== undefined ) data.dashSize = this.dashSize;
    		if ( this.gapSize !== undefined ) data.gapSize = this.gapSize;
    		if ( this.scale !== undefined ) data.scale = this.scale;

    		if ( this.dithering === true ) data.dithering = true;

    		if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
    		if ( this.alphaToCoverage === true ) data.alphaToCoverage = this.alphaToCoverage;
    		if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;

    		if ( this.wireframe === true ) data.wireframe = this.wireframe;
    		if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;
    		if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;
    		if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;

    		if ( this.flatShading === true ) data.flatShading = this.flatShading;

    		if ( this.visible === false ) data.visible = false;

    		if ( this.toneMapped === false ) data.toneMapped = false;

    		if ( this.fog === false ) data.fog = false;

    		if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;

    		// TODO: Copied from Object3D.toJSON

    		function extractFromCache( cache ) {

    			const values = [];

    			for ( const key in cache ) {

    				const data = cache[ key ];
    				delete data.metadata;
    				values.push( data );

    			}

    			return values;

    		}

    		if ( isRootObject ) {

    			const textures = extractFromCache( meta.textures );
    			const images = extractFromCache( meta.images );

    			if ( textures.length > 0 ) data.textures = textures;
    			if ( images.length > 0 ) data.images = images;

    		}

    		return data;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	copy( source ) {

    		this.name = source.name;

    		this.blending = source.blending;
    		this.side = source.side;
    		this.vertexColors = source.vertexColors;

    		this.opacity = source.opacity;
    		this.transparent = source.transparent;

    		this.blendSrc = source.blendSrc;
    		this.blendDst = source.blendDst;
    		this.blendEquation = source.blendEquation;
    		this.blendSrcAlpha = source.blendSrcAlpha;
    		this.blendDstAlpha = source.blendDstAlpha;
    		this.blendEquationAlpha = source.blendEquationAlpha;

    		this.depthFunc = source.depthFunc;
    		this.depthTest = source.depthTest;
    		this.depthWrite = source.depthWrite;

    		this.stencilWriteMask = source.stencilWriteMask;
    		this.stencilFunc = source.stencilFunc;
    		this.stencilRef = source.stencilRef;
    		this.stencilFuncMask = source.stencilFuncMask;
    		this.stencilFail = source.stencilFail;
    		this.stencilZFail = source.stencilZFail;
    		this.stencilZPass = source.stencilZPass;
    		this.stencilWrite = source.stencilWrite;

    		const srcPlanes = source.clippingPlanes;
    		let dstPlanes = null;

    		if ( srcPlanes !== null ) {

    			const n = srcPlanes.length;
    			dstPlanes = new Array( n );

    			for ( let i = 0; i !== n; ++ i ) {

    				dstPlanes[ i ] = srcPlanes[ i ].clone();

    			}

    		}

    		this.clippingPlanes = dstPlanes;
    		this.clipIntersection = source.clipIntersection;
    		this.clipShadows = source.clipShadows;

    		this.shadowSide = source.shadowSide;

    		this.colorWrite = source.colorWrite;

    		this.precision = source.precision;

    		this.polygonOffset = source.polygonOffset;
    		this.polygonOffsetFactor = source.polygonOffsetFactor;
    		this.polygonOffsetUnits = source.polygonOffsetUnits;

    		this.dithering = source.dithering;

    		this.alphaTest = source.alphaTest;
    		this.alphaToCoverage = source.alphaToCoverage;
    		this.premultipliedAlpha = source.premultipliedAlpha;

    		this.visible = source.visible;

    		this.toneMapped = source.toneMapped;

    		this.userData = JSON.parse( JSON.stringify( source.userData ) );

    		return this;

    	}

    	dispose() {

    		this.dispatchEvent( { type: 'dispose' } );

    	}

    	set needsUpdate( value ) {

    		if ( value === true ) this.version ++;

    	}

    }

    class MeshBasicMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshBasicMaterial = true;

    		this.type = 'MeshBasicMaterial';

    		this.color = new Color( 0xffffff ); // emissive

    		this.map = null;

    		this.lightMap = null;
    		this.lightMapIntensity = 1.0;

    		this.aoMap = null;
    		this.aoMapIntensity = 1.0;

    		this.specularMap = null;

    		this.alphaMap = null;

    		this.envMap = null;
    		this.combine = MultiplyOperation;
    		this.reflectivity = 1;
    		this.refractionRatio = 0.98;

    		this.wireframe = false;
    		this.wireframeLinewidth = 1;
    		this.wireframeLinecap = 'round';
    		this.wireframeLinejoin = 'round';

    		this.fog = true;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.color.copy( source.color );

    		this.map = source.map;

    		this.lightMap = source.lightMap;
    		this.lightMapIntensity = source.lightMapIntensity;

    		this.aoMap = source.aoMap;
    		this.aoMapIntensity = source.aoMapIntensity;

    		this.specularMap = source.specularMap;

    		this.alphaMap = source.alphaMap;

    		this.envMap = source.envMap;
    		this.combine = source.combine;
    		this.reflectivity = source.reflectivity;
    		this.refractionRatio = source.refractionRatio;

    		this.wireframe = source.wireframe;
    		this.wireframeLinewidth = source.wireframeLinewidth;
    		this.wireframeLinecap = source.wireframeLinecap;
    		this.wireframeLinejoin = source.wireframeLinejoin;

    		this.fog = source.fog;

    		return this;

    	}

    }

    const _vector$9 = /*@__PURE__*/ new Vector3();
    const _vector2$1 = /*@__PURE__*/ new Vector2();

    class BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		if ( Array.isArray( array ) ) {

    			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );

    		}

    		this.isBufferAttribute = true;

    		this.name = '';

    		this.array = array;
    		this.itemSize = itemSize;
    		this.count = array !== undefined ? array.length / itemSize : 0;
    		this.normalized = normalized === true;

    		this.usage = StaticDrawUsage;
    		this.updateRange = { offset: 0, count: - 1 };

    		this.version = 0;

    	}

    	onUploadCallback() {}

    	set needsUpdate( value ) {

    		if ( value === true ) this.version ++;

    	}

    	setUsage( value ) {

    		this.usage = value;

    		return this;

    	}

    	copy( source ) {

    		this.name = source.name;
    		this.array = new source.array.constructor( source.array );
    		this.itemSize = source.itemSize;
    		this.count = source.count;
    		this.normalized = source.normalized;

    		this.usage = source.usage;

    		return this;

    	}

    	copyAt( index1, attribute, index2 ) {

    		index1 *= this.itemSize;
    		index2 *= attribute.itemSize;

    		for ( let i = 0, l = this.itemSize; i < l; i ++ ) {

    			this.array[ index1 + i ] = attribute.array[ index2 + i ];

    		}

    		return this;

    	}

    	copyArray( array ) {

    		this.array.set( array );

    		return this;

    	}

    	applyMatrix3( m ) {

    		if ( this.itemSize === 2 ) {

    			for ( let i = 0, l = this.count; i < l; i ++ ) {

    				_vector2$1.fromBufferAttribute( this, i );
    				_vector2$1.applyMatrix3( m );

    				this.setXY( i, _vector2$1.x, _vector2$1.y );

    			}

    		} else if ( this.itemSize === 3 ) {

    			for ( let i = 0, l = this.count; i < l; i ++ ) {

    				_vector$9.fromBufferAttribute( this, i );
    				_vector$9.applyMatrix3( m );

    				this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z );

    			}

    		}

    		return this;

    	}

    	applyMatrix4( m ) {

    		for ( let i = 0, l = this.count; i < l; i ++ ) {

    			_vector$9.fromBufferAttribute( this, i );

    			_vector$9.applyMatrix4( m );

    			this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z );

    		}

    		return this;

    	}

    	applyNormalMatrix( m ) {

    		for ( let i = 0, l = this.count; i < l; i ++ ) {

    			_vector$9.fromBufferAttribute( this, i );

    			_vector$9.applyNormalMatrix( m );

    			this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z );

    		}

    		return this;

    	}

    	transformDirection( m ) {

    		for ( let i = 0, l = this.count; i < l; i ++ ) {

    			_vector$9.fromBufferAttribute( this, i );

    			_vector$9.transformDirection( m );

    			this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z );

    		}

    		return this;

    	}

    	set( value, offset = 0 ) {

    		// Matching BufferAttribute constructor, do not normalize the array.
    		this.array.set( value, offset );

    		return this;

    	}

    	getX( index ) {

    		let x = this.array[ index * this.itemSize ];

    		if ( this.normalized ) x = denormalize( x, this.array );

    		return x;

    	}

    	setX( index, x ) {

    		if ( this.normalized ) x = normalize( x, this.array );

    		this.array[ index * this.itemSize ] = x;

    		return this;

    	}

    	getY( index ) {

    		let y = this.array[ index * this.itemSize + 1 ];

    		if ( this.normalized ) y = denormalize( y, this.array );

    		return y;

    	}

    	setY( index, y ) {

    		if ( this.normalized ) y = normalize( y, this.array );

    		this.array[ index * this.itemSize + 1 ] = y;

    		return this;

    	}

    	getZ( index ) {

    		let z = this.array[ index * this.itemSize + 2 ];

    		if ( this.normalized ) z = denormalize( z, this.array );

    		return z;

    	}

    	setZ( index, z ) {

    		if ( this.normalized ) z = normalize( z, this.array );

    		this.array[ index * this.itemSize + 2 ] = z;

    		return this;

    	}

    	getW( index ) {

    		let w = this.array[ index * this.itemSize + 3 ];

    		if ( this.normalized ) w = denormalize( w, this.array );

    		return w;

    	}

    	setW( index, w ) {

    		if ( this.normalized ) w = normalize( w, this.array );

    		this.array[ index * this.itemSize + 3 ] = w;

    		return this;

    	}

    	setXY( index, x, y ) {

    		index *= this.itemSize;

    		if ( this.normalized ) {

    			x = normalize( x, this.array );
    			y = normalize( y, this.array );

    		}

    		this.array[ index + 0 ] = x;
    		this.array[ index + 1 ] = y;

    		return this;

    	}

    	setXYZ( index, x, y, z ) {

    		index *= this.itemSize;

    		if ( this.normalized ) {

    			x = normalize( x, this.array );
    			y = normalize( y, this.array );
    			z = normalize( z, this.array );

    		}

    		this.array[ index + 0 ] = x;
    		this.array[ index + 1 ] = y;
    		this.array[ index + 2 ] = z;

    		return this;

    	}

    	setXYZW( index, x, y, z, w ) {

    		index *= this.itemSize;

    		if ( this.normalized ) {

    			x = normalize( x, this.array );
    			y = normalize( y, this.array );
    			z = normalize( z, this.array );
    			w = normalize( w, this.array );

    		}

    		this.array[ index + 0 ] = x;
    		this.array[ index + 1 ] = y;
    		this.array[ index + 2 ] = z;
    		this.array[ index + 3 ] = w;

    		return this;

    	}

    	onUpload( callback ) {

    		this.onUploadCallback = callback;

    		return this;

    	}

    	clone() {

    		return new this.constructor( this.array, this.itemSize ).copy( this );

    	}

    	toJSON() {

    		const data = {
    			itemSize: this.itemSize,
    			type: this.array.constructor.name,
    			array: Array.from( this.array ),
    			normalized: this.normalized
    		};

    		if ( this.name !== '' ) data.name = this.name;
    		if ( this.usage !== StaticDrawUsage ) data.usage = this.usage;
    		if ( this.updateRange.offset !== 0 || this.updateRange.count !== - 1 ) data.updateRange = this.updateRange;

    		return data;

    	}

    	// @deprecated

    	copyColorsArray() {

    		console.error( 'THREE.BufferAttribute: copyColorsArray() was removed in r144.' );

    	}

    	copyVector2sArray() {

    		console.error( 'THREE.BufferAttribute: copyVector2sArray() was removed in r144.' );

    	}

    	copyVector3sArray() {

    		console.error( 'THREE.BufferAttribute: copyVector3sArray() was removed in r144.' );

    	}

    	copyVector4sArray() {

    		console.error( 'THREE.BufferAttribute: copyVector4sArray() was removed in r144.' );

    	}

    }

    //

    class Int8BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Int8Array( array ), itemSize, normalized );

    	}

    }

    class Uint8BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Uint8Array( array ), itemSize, normalized );

    	}

    }

    class Uint8ClampedBufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Uint8ClampedArray( array ), itemSize, normalized );

    	}

    }

    class Int16BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Int16Array( array ), itemSize, normalized );

    	}

    }

    class Uint16BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Uint16Array( array ), itemSize, normalized );

    	}

    }

    class Int32BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Int32Array( array ), itemSize, normalized );

    	}

    }

    class Uint32BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Uint32Array( array ), itemSize, normalized );

    	}

    }

    class Float16BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Uint16Array( array ), itemSize, normalized );

    		this.isFloat16BufferAttribute = true;

    	}

    }


    class Float32BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Float32Array( array ), itemSize, normalized );

    	}

    }

    class Float64BufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized ) {

    		super( new Float64Array( array ), itemSize, normalized );

    	}

    }

    let _id$1 = 0;

    const _m1 = /*@__PURE__*/ new Matrix4();
    const _obj = /*@__PURE__*/ new Object3D();
    const _offset = /*@__PURE__*/ new Vector3();
    const _box$1 = /*@__PURE__*/ new Box3();
    const _boxMorphTargets = /*@__PURE__*/ new Box3();
    const _vector$8 = /*@__PURE__*/ new Vector3();

    class BufferGeometry extends EventDispatcher {

    	constructor() {

    		super();

    		this.isBufferGeometry = true;

    		Object.defineProperty( this, 'id', { value: _id$1 ++ } );

    		this.uuid = generateUUID();

    		this.name = '';
    		this.type = 'BufferGeometry';

    		this.index = null;
    		this.attributes = {};

    		this.morphAttributes = {};
    		this.morphTargetsRelative = false;

    		this.groups = [];

    		this.boundingBox = null;
    		this.boundingSphere = null;

    		this.drawRange = { start: 0, count: Infinity };

    		this.userData = {};

    	}

    	getIndex() {

    		return this.index;

    	}

    	setIndex( index ) {

    		if ( Array.isArray( index ) ) {

    			this.index = new ( arrayNeedsUint32( index ) ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );

    		} else {

    			this.index = index;

    		}

    		return this;

    	}

    	getAttribute( name ) {

    		return this.attributes[ name ];

    	}

    	setAttribute( name, attribute ) {

    		this.attributes[ name ] = attribute;

    		return this;

    	}

    	deleteAttribute( name ) {

    		delete this.attributes[ name ];

    		return this;

    	}

    	hasAttribute( name ) {

    		return this.attributes[ name ] !== undefined;

    	}

    	addGroup( start, count, materialIndex = 0 ) {

    		this.groups.push( {

    			start: start,
    			count: count,
    			materialIndex: materialIndex

    		} );

    	}

    	clearGroups() {

    		this.groups = [];

    	}

    	setDrawRange( start, count ) {

    		this.drawRange.start = start;
    		this.drawRange.count = count;

    	}

    	applyMatrix4( matrix ) {

    		const position = this.attributes.position;

    		if ( position !== undefined ) {

    			position.applyMatrix4( matrix );

    			position.needsUpdate = true;

    		}

    		const normal = this.attributes.normal;

    		if ( normal !== undefined ) {

    			const normalMatrix = new Matrix3().getNormalMatrix( matrix );

    			normal.applyNormalMatrix( normalMatrix );

    			normal.needsUpdate = true;

    		}

    		const tangent = this.attributes.tangent;

    		if ( tangent !== undefined ) {

    			tangent.transformDirection( matrix );

    			tangent.needsUpdate = true;

    		}

    		if ( this.boundingBox !== null ) {

    			this.computeBoundingBox();

    		}

    		if ( this.boundingSphere !== null ) {

    			this.computeBoundingSphere();

    		}

    		return this;

    	}

    	applyQuaternion( q ) {

    		_m1.makeRotationFromQuaternion( q );

    		this.applyMatrix4( _m1 );

    		return this;

    	}

    	rotateX( angle ) {

    		// rotate geometry around world x-axis

    		_m1.makeRotationX( angle );

    		this.applyMatrix4( _m1 );

    		return this;

    	}

    	rotateY( angle ) {

    		// rotate geometry around world y-axis

    		_m1.makeRotationY( angle );

    		this.applyMatrix4( _m1 );

    		return this;

    	}

    	rotateZ( angle ) {

    		// rotate geometry around world z-axis

    		_m1.makeRotationZ( angle );

    		this.applyMatrix4( _m1 );

    		return this;

    	}

    	translate( x, y, z ) {

    		// translate geometry

    		_m1.makeTranslation( x, y, z );

    		this.applyMatrix4( _m1 );

    		return this;

    	}

    	scale( x, y, z ) {

    		// scale geometry

    		_m1.makeScale( x, y, z );

    		this.applyMatrix4( _m1 );

    		return this;

    	}

    	lookAt( vector ) {

    		_obj.lookAt( vector );

    		_obj.updateMatrix();

    		this.applyMatrix4( _obj.matrix );

    		return this;

    	}

    	center() {

    		this.computeBoundingBox();

    		this.boundingBox.getCenter( _offset ).negate();

    		this.translate( _offset.x, _offset.y, _offset.z );

    		return this;

    	}

    	setFromPoints( points ) {

    		const position = [];

    		for ( let i = 0, l = points.length; i < l; i ++ ) {

    			const point = points[ i ];
    			position.push( point.x, point.y, point.z || 0 );

    		}

    		this.setAttribute( 'position', new Float32BufferAttribute( position, 3 ) );

    		return this;

    	}

    	computeBoundingBox() {

    		if ( this.boundingBox === null ) {

    			this.boundingBox = new Box3();

    		}

    		const position = this.attributes.position;
    		const morphAttributesPosition = this.morphAttributes.position;

    		if ( position && position.isGLBufferAttribute ) {

    			console.error( 'THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".', this );

    			this.boundingBox.set(
    				new Vector3( - Infinity, - Infinity, - Infinity ),
    				new Vector3( + Infinity, + Infinity, + Infinity )
    			);

    			return;

    		}

    		if ( position !== undefined ) {

    			this.boundingBox.setFromBufferAttribute( position );

    			// process morph attributes if present

    			if ( morphAttributesPosition ) {

    				for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {

    					const morphAttribute = morphAttributesPosition[ i ];
    					_box$1.setFromBufferAttribute( morphAttribute );

    					if ( this.morphTargetsRelative ) {

    						_vector$8.addVectors( this.boundingBox.min, _box$1.min );
    						this.boundingBox.expandByPoint( _vector$8 );

    						_vector$8.addVectors( this.boundingBox.max, _box$1.max );
    						this.boundingBox.expandByPoint( _vector$8 );

    					} else {

    						this.boundingBox.expandByPoint( _box$1.min );
    						this.boundingBox.expandByPoint( _box$1.max );

    					}

    				}

    			}

    		} else {

    			this.boundingBox.makeEmpty();

    		}

    		if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {

    			console.error( 'THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );

    		}

    	}

    	computeBoundingSphere() {

    		if ( this.boundingSphere === null ) {

    			this.boundingSphere = new Sphere();

    		}

    		const position = this.attributes.position;
    		const morphAttributesPosition = this.morphAttributes.position;

    		if ( position && position.isGLBufferAttribute ) {

    			console.error( 'THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".', this );

    			this.boundingSphere.set( new Vector3(), Infinity );

    			return;

    		}

    		if ( position ) {

    			// first, find the center of the bounding sphere

    			const center = this.boundingSphere.center;

    			_box$1.setFromBufferAttribute( position );

    			// process morph attributes if present

    			if ( morphAttributesPosition ) {

    				for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {

    					const morphAttribute = morphAttributesPosition[ i ];
    					_boxMorphTargets.setFromBufferAttribute( morphAttribute );

    					if ( this.morphTargetsRelative ) {

    						_vector$8.addVectors( _box$1.min, _boxMorphTargets.min );
    						_box$1.expandByPoint( _vector$8 );

    						_vector$8.addVectors( _box$1.max, _boxMorphTargets.max );
    						_box$1.expandByPoint( _vector$8 );

    					} else {

    						_box$1.expandByPoint( _boxMorphTargets.min );
    						_box$1.expandByPoint( _boxMorphTargets.max );

    					}

    				}

    			}

    			_box$1.getCenter( center );

    			// second, try to find a boundingSphere with a radius smaller than the
    			// boundingSphere of the boundingBox: sqrt(3) smaller in the best case

    			let maxRadiusSq = 0;

    			for ( let i = 0, il = position.count; i < il; i ++ ) {

    				_vector$8.fromBufferAttribute( position, i );

    				maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( _vector$8 ) );

    			}

    			// process morph attributes if present

    			if ( morphAttributesPosition ) {

    				for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {

    					const morphAttribute = morphAttributesPosition[ i ];
    					const morphTargetsRelative = this.morphTargetsRelative;

    					for ( let j = 0, jl = morphAttribute.count; j < jl; j ++ ) {

    						_vector$8.fromBufferAttribute( morphAttribute, j );

    						if ( morphTargetsRelative ) {

    							_offset.fromBufferAttribute( position, j );
    							_vector$8.add( _offset );

    						}

    						maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( _vector$8 ) );

    					}

    				}

    			}

    			this.boundingSphere.radius = Math.sqrt( maxRadiusSq );

    			if ( isNaN( this.boundingSphere.radius ) ) {

    				console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );

    			}

    		}

    	}

    	computeTangents() {

    		const index = this.index;
    		const attributes = this.attributes;

    		// based on http://www.terathon.com/code/tangent.html
    		// (per vertex tangents)

    		if ( index === null ||
    			 attributes.position === undefined ||
    			 attributes.normal === undefined ||
    			 attributes.uv === undefined ) {

    			console.error( 'THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)' );
    			return;

    		}

    		const indices = index.array;
    		const positions = attributes.position.array;
    		const normals = attributes.normal.array;
    		const uvs = attributes.uv.array;

    		const nVertices = positions.length / 3;

    		if ( this.hasAttribute( 'tangent' ) === false ) {

    			this.setAttribute( 'tangent', new BufferAttribute( new Float32Array( 4 * nVertices ), 4 ) );

    		}

    		const tangents = this.getAttribute( 'tangent' ).array;

    		const tan1 = [], tan2 = [];

    		for ( let i = 0; i < nVertices; i ++ ) {

    			tan1[ i ] = new Vector3();
    			tan2[ i ] = new Vector3();

    		}

    		const vA = new Vector3(),
    			vB = new Vector3(),
    			vC = new Vector3(),

    			uvA = new Vector2(),
    			uvB = new Vector2(),
    			uvC = new Vector2(),

    			sdir = new Vector3(),
    			tdir = new Vector3();

    		function handleTriangle( a, b, c ) {

    			vA.fromArray( positions, a * 3 );
    			vB.fromArray( positions, b * 3 );
    			vC.fromArray( positions, c * 3 );

    			uvA.fromArray( uvs, a * 2 );
    			uvB.fromArray( uvs, b * 2 );
    			uvC.fromArray( uvs, c * 2 );

    			vB.sub( vA );
    			vC.sub( vA );

    			uvB.sub( uvA );
    			uvC.sub( uvA );

    			const r = 1.0 / ( uvB.x * uvC.y - uvC.x * uvB.y );

    			// silently ignore degenerate uv triangles having coincident or colinear vertices

    			if ( ! isFinite( r ) ) return;

    			sdir.copy( vB ).multiplyScalar( uvC.y ).addScaledVector( vC, - uvB.y ).multiplyScalar( r );
    			tdir.copy( vC ).multiplyScalar( uvB.x ).addScaledVector( vB, - uvC.x ).multiplyScalar( r );

    			tan1[ a ].add( sdir );
    			tan1[ b ].add( sdir );
    			tan1[ c ].add( sdir );

    			tan2[ a ].add( tdir );
    			tan2[ b ].add( tdir );
    			tan2[ c ].add( tdir );

    		}

    		let groups = this.groups;

    		if ( groups.length === 0 ) {

    			groups = [ {
    				start: 0,
    				count: indices.length
    			} ];

    		}

    		for ( let i = 0, il = groups.length; i < il; ++ i ) {

    			const group = groups[ i ];

    			const start = group.start;
    			const count = group.count;

    			for ( let j = start, jl = start + count; j < jl; j += 3 ) {

    				handleTriangle(
    					indices[ j + 0 ],
    					indices[ j + 1 ],
    					indices[ j + 2 ]
    				);

    			}

    		}

    		const tmp = new Vector3(), tmp2 = new Vector3();
    		const n = new Vector3(), n2 = new Vector3();

    		function handleVertex( v ) {

    			n.fromArray( normals, v * 3 );
    			n2.copy( n );

    			const t = tan1[ v ];

    			// Gram-Schmidt orthogonalize

    			tmp.copy( t );
    			tmp.sub( n.multiplyScalar( n.dot( t ) ) ).normalize();

    			// Calculate handedness

    			tmp2.crossVectors( n2, t );
    			const test = tmp2.dot( tan2[ v ] );
    			const w = ( test < 0.0 ) ? - 1.0 : 1.0;

    			tangents[ v * 4 ] = tmp.x;
    			tangents[ v * 4 + 1 ] = tmp.y;
    			tangents[ v * 4 + 2 ] = tmp.z;
    			tangents[ v * 4 + 3 ] = w;

    		}

    		for ( let i = 0, il = groups.length; i < il; ++ i ) {

    			const group = groups[ i ];

    			const start = group.start;
    			const count = group.count;

    			for ( let j = start, jl = start + count; j < jl; j += 3 ) {

    				handleVertex( indices[ j + 0 ] );
    				handleVertex( indices[ j + 1 ] );
    				handleVertex( indices[ j + 2 ] );

    			}

    		}

    	}

    	computeVertexNormals() {

    		const index = this.index;
    		const positionAttribute = this.getAttribute( 'position' );

    		if ( positionAttribute !== undefined ) {

    			let normalAttribute = this.getAttribute( 'normal' );

    			if ( normalAttribute === undefined ) {

    				normalAttribute = new BufferAttribute( new Float32Array( positionAttribute.count * 3 ), 3 );
    				this.setAttribute( 'normal', normalAttribute );

    			} else {

    				// reset existing normals to zero

    				for ( let i = 0, il = normalAttribute.count; i < il; i ++ ) {

    					normalAttribute.setXYZ( i, 0, 0, 0 );

    				}

    			}

    			const pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
    			const nA = new Vector3(), nB = new Vector3(), nC = new Vector3();
    			const cb = new Vector3(), ab = new Vector3();

    			// indexed elements

    			if ( index ) {

    				for ( let i = 0, il = index.count; i < il; i += 3 ) {

    					const vA = index.getX( i + 0 );
    					const vB = index.getX( i + 1 );
    					const vC = index.getX( i + 2 );

    					pA.fromBufferAttribute( positionAttribute, vA );
    					pB.fromBufferAttribute( positionAttribute, vB );
    					pC.fromBufferAttribute( positionAttribute, vC );

    					cb.subVectors( pC, pB );
    					ab.subVectors( pA, pB );
    					cb.cross( ab );

    					nA.fromBufferAttribute( normalAttribute, vA );
    					nB.fromBufferAttribute( normalAttribute, vB );
    					nC.fromBufferAttribute( normalAttribute, vC );

    					nA.add( cb );
    					nB.add( cb );
    					nC.add( cb );

    					normalAttribute.setXYZ( vA, nA.x, nA.y, nA.z );
    					normalAttribute.setXYZ( vB, nB.x, nB.y, nB.z );
    					normalAttribute.setXYZ( vC, nC.x, nC.y, nC.z );

    				}

    			} else {

    				// non-indexed elements (unconnected triangle soup)

    				for ( let i = 0, il = positionAttribute.count; i < il; i += 3 ) {

    					pA.fromBufferAttribute( positionAttribute, i + 0 );
    					pB.fromBufferAttribute( positionAttribute, i + 1 );
    					pC.fromBufferAttribute( positionAttribute, i + 2 );

    					cb.subVectors( pC, pB );
    					ab.subVectors( pA, pB );
    					cb.cross( ab );

    					normalAttribute.setXYZ( i + 0, cb.x, cb.y, cb.z );
    					normalAttribute.setXYZ( i + 1, cb.x, cb.y, cb.z );
    					normalAttribute.setXYZ( i + 2, cb.x, cb.y, cb.z );

    				}

    			}

    			this.normalizeNormals();

    			normalAttribute.needsUpdate = true;

    		}

    	}

    	// @deprecated since r144

    	merge() {

    		console.error( 'THREE.BufferGeometry.merge() has been removed. Use THREE.BufferGeometryUtils.mergeBufferGeometries() instead.' );
    		return this;

    	}

    	normalizeNormals() {

    		const normals = this.attributes.normal;

    		for ( let i = 0, il = normals.count; i < il; i ++ ) {

    			_vector$8.fromBufferAttribute( normals, i );

    			_vector$8.normalize();

    			normals.setXYZ( i, _vector$8.x, _vector$8.y, _vector$8.z );

    		}

    	}

    	toNonIndexed() {

    		function convertBufferAttribute( attribute, indices ) {

    			const array = attribute.array;
    			const itemSize = attribute.itemSize;
    			const normalized = attribute.normalized;

    			const array2 = new array.constructor( indices.length * itemSize );

    			let index = 0, index2 = 0;

    			for ( let i = 0, l = indices.length; i < l; i ++ ) {

    				if ( attribute.isInterleavedBufferAttribute ) {

    					index = indices[ i ] * attribute.data.stride + attribute.offset;

    				} else {

    					index = indices[ i ] * itemSize;

    				}

    				for ( let j = 0; j < itemSize; j ++ ) {

    					array2[ index2 ++ ] = array[ index ++ ];

    				}

    			}

    			return new BufferAttribute( array2, itemSize, normalized );

    		}

    		//

    		if ( this.index === null ) {

    			console.warn( 'THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed.' );
    			return this;

    		}

    		const geometry2 = new BufferGeometry();

    		const indices = this.index.array;
    		const attributes = this.attributes;

    		// attributes

    		for ( const name in attributes ) {

    			const attribute = attributes[ name ];

    			const newAttribute = convertBufferAttribute( attribute, indices );

    			geometry2.setAttribute( name, newAttribute );

    		}

    		// morph attributes

    		const morphAttributes = this.morphAttributes;

    		for ( const name in morphAttributes ) {

    			const morphArray = [];
    			const morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes

    			for ( let i = 0, il = morphAttribute.length; i < il; i ++ ) {

    				const attribute = morphAttribute[ i ];

    				const newAttribute = convertBufferAttribute( attribute, indices );

    				morphArray.push( newAttribute );

    			}

    			geometry2.morphAttributes[ name ] = morphArray;

    		}

    		geometry2.morphTargetsRelative = this.morphTargetsRelative;

    		// groups

    		const groups = this.groups;

    		for ( let i = 0, l = groups.length; i < l; i ++ ) {

    			const group = groups[ i ];
    			geometry2.addGroup( group.start, group.count, group.materialIndex );

    		}

    		return geometry2;

    	}

    	toJSON() {

    		const data = {
    			metadata: {
    				version: 4.5,
    				type: 'BufferGeometry',
    				generator: 'BufferGeometry.toJSON'
    			}
    		};

    		// standard BufferGeometry serialization

    		data.uuid = this.uuid;
    		data.type = this.type;
    		if ( this.name !== '' ) data.name = this.name;
    		if ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData;

    		if ( this.parameters !== undefined ) {

    			const parameters = this.parameters;

    			for ( const key in parameters ) {

    				if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];

    			}

    			return data;

    		}

    		// for simplicity the code assumes attributes are not shared across geometries, see #15811

    		data.data = { attributes: {} };

    		const index = this.index;

    		if ( index !== null ) {

    			data.data.index = {
    				type: index.array.constructor.name,
    				array: Array.prototype.slice.call( index.array )
    			};

    		}

    		const attributes = this.attributes;

    		for ( const key in attributes ) {

    			const attribute = attributes[ key ];

    			data.data.attributes[ key ] = attribute.toJSON( data.data );

    		}

    		const morphAttributes = {};
    		let hasMorphAttributes = false;

    		for ( const key in this.morphAttributes ) {

    			const attributeArray = this.morphAttributes[ key ];

    			const array = [];

    			for ( let i = 0, il = attributeArray.length; i < il; i ++ ) {

    				const attribute = attributeArray[ i ];

    				array.push( attribute.toJSON( data.data ) );

    			}

    			if ( array.length > 0 ) {

    				morphAttributes[ key ] = array;

    				hasMorphAttributes = true;

    			}

    		}

    		if ( hasMorphAttributes ) {

    			data.data.morphAttributes = morphAttributes;
    			data.data.morphTargetsRelative = this.morphTargetsRelative;

    		}

    		const groups = this.groups;

    		if ( groups.length > 0 ) {

    			data.data.groups = JSON.parse( JSON.stringify( groups ) );

    		}

    		const boundingSphere = this.boundingSphere;

    		if ( boundingSphere !== null ) {

    			data.data.boundingSphere = {
    				center: boundingSphere.center.toArray(),
    				radius: boundingSphere.radius
    			};

    		}

    		return data;

    	}

    	clone() {

    		 return new this.constructor().copy( this );

    	}

    	copy( source ) {

    		// reset

    		this.index = null;
    		this.attributes = {};
    		this.morphAttributes = {};
    		this.groups = [];
    		this.boundingBox = null;
    		this.boundingSphere = null;

    		// used for storing cloned, shared data

    		const data = {};

    		// name

    		this.name = source.name;

    		// index

    		const index = source.index;

    		if ( index !== null ) {

    			this.setIndex( index.clone( data ) );

    		}

    		// attributes

    		const attributes = source.attributes;

    		for ( const name in attributes ) {

    			const attribute = attributes[ name ];
    			this.setAttribute( name, attribute.clone( data ) );

    		}

    		// morph attributes

    		const morphAttributes = source.morphAttributes;

    		for ( const name in morphAttributes ) {

    			const array = [];
    			const morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes

    			for ( let i = 0, l = morphAttribute.length; i < l; i ++ ) {

    				array.push( morphAttribute[ i ].clone( data ) );

    			}

    			this.morphAttributes[ name ] = array;

    		}

    		this.morphTargetsRelative = source.morphTargetsRelative;

    		// groups

    		const groups = source.groups;

    		for ( let i = 0, l = groups.length; i < l; i ++ ) {

    			const group = groups[ i ];
    			this.addGroup( group.start, group.count, group.materialIndex );

    		}

    		// bounding box

    		const boundingBox = source.boundingBox;

    		if ( boundingBox !== null ) {

    			this.boundingBox = boundingBox.clone();

    		}

    		// bounding sphere

    		const boundingSphere = source.boundingSphere;

    		if ( boundingSphere !== null ) {

    			this.boundingSphere = boundingSphere.clone();

    		}

    		// draw range

    		this.drawRange.start = source.drawRange.start;
    		this.drawRange.count = source.drawRange.count;

    		// user data

    		this.userData = source.userData;

    		// geometry generator parameters

    		if ( source.parameters !== undefined ) this.parameters = Object.assign( {}, source.parameters );

    		return this;

    	}

    	dispose() {

    		this.dispatchEvent( { type: 'dispose' } );

    	}

    }

    const _inverseMatrix$2 = /*@__PURE__*/ new Matrix4();
    const _ray$2 = /*@__PURE__*/ new Ray();
    const _sphere$3 = /*@__PURE__*/ new Sphere();

    const _vA$1 = /*@__PURE__*/ new Vector3();
    const _vB$1 = /*@__PURE__*/ new Vector3();
    const _vC$1 = /*@__PURE__*/ new Vector3();

    const _tempA = /*@__PURE__*/ new Vector3();
    const _tempB = /*@__PURE__*/ new Vector3();
    const _tempC = /*@__PURE__*/ new Vector3();

    const _morphA = /*@__PURE__*/ new Vector3();
    const _morphB = /*@__PURE__*/ new Vector3();
    const _morphC = /*@__PURE__*/ new Vector3();

    const _uvA$1 = /*@__PURE__*/ new Vector2();
    const _uvB$1 = /*@__PURE__*/ new Vector2();
    const _uvC$1 = /*@__PURE__*/ new Vector2();

    const _intersectionPoint = /*@__PURE__*/ new Vector3();
    const _intersectionPointWorld = /*@__PURE__*/ new Vector3();

    class Mesh extends Object3D {

    	constructor( geometry = new BufferGeometry(), material = new MeshBasicMaterial() ) {

    		super();

    		this.isMesh = true;

    		this.type = 'Mesh';

    		this.geometry = geometry;
    		this.material = material;

    		this.updateMorphTargets();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		if ( source.morphTargetInfluences !== undefined ) {

    			this.morphTargetInfluences = source.morphTargetInfluences.slice();

    		}

    		if ( source.morphTargetDictionary !== undefined ) {

    			this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );

    		}

    		this.material = source.material;
    		this.geometry = source.geometry;

    		return this;

    	}

    	updateMorphTargets() {

    		const geometry = this.geometry;

    		const morphAttributes = geometry.morphAttributes;
    		const keys = Object.keys( morphAttributes );

    		if ( keys.length > 0 ) {

    			const morphAttribute = morphAttributes[ keys[ 0 ] ];

    			if ( morphAttribute !== undefined ) {

    				this.morphTargetInfluences = [];
    				this.morphTargetDictionary = {};

    				for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) {

    					const name = morphAttribute[ m ].name || String( m );

    					this.morphTargetInfluences.push( 0 );
    					this.morphTargetDictionary[ name ] = m;

    				}

    			}

    		}

    	}

    	raycast( raycaster, intersects ) {

    		const geometry = this.geometry;
    		const material = this.material;
    		const matrixWorld = this.matrixWorld;

    		if ( material === undefined ) return;

    		// Checking boundingSphere distance to ray

    		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

    		_sphere$3.copy( geometry.boundingSphere );
    		_sphere$3.applyMatrix4( matrixWorld );

    		if ( raycaster.ray.intersectsSphere( _sphere$3 ) === false ) return;

    		//

    		_inverseMatrix$2.copy( matrixWorld ).invert();
    		_ray$2.copy( raycaster.ray ).applyMatrix4( _inverseMatrix$2 );

    		// Check boundingBox before continuing

    		if ( geometry.boundingBox !== null ) {

    			if ( _ray$2.intersectsBox( geometry.boundingBox ) === false ) return;

    		}

    		let intersection;

    		const index = geometry.index;
    		const position = geometry.attributes.position;
    		const morphPosition = geometry.morphAttributes.position;
    		const morphTargetsRelative = geometry.morphTargetsRelative;
    		const uv = geometry.attributes.uv;
    		const uv2 = geometry.attributes.uv2;
    		const groups = geometry.groups;
    		const drawRange = geometry.drawRange;

    		if ( index !== null ) {

    			// indexed buffer geometry

    			if ( Array.isArray( material ) ) {

    				for ( let i = 0, il = groups.length; i < il; i ++ ) {

    					const group = groups[ i ];
    					const groupMaterial = material[ group.materialIndex ];

    					const start = Math.max( group.start, drawRange.start );
    					const end = Math.min( index.count, Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ) );

    					for ( let j = start, jl = end; j < jl; j += 3 ) {

    						const a = index.getX( j );
    						const b = index.getX( j + 1 );
    						const c = index.getX( j + 2 );

    						intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c );

    						if ( intersection ) {

    							intersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics
    							intersection.face.materialIndex = group.materialIndex;
    							intersects.push( intersection );

    						}

    					}

    				}

    			} else {

    				const start = Math.max( 0, drawRange.start );
    				const end = Math.min( index.count, ( drawRange.start + drawRange.count ) );

    				for ( let i = start, il = end; i < il; i += 3 ) {

    					const a = index.getX( i );
    					const b = index.getX( i + 1 );
    					const c = index.getX( i + 2 );

    					intersection = checkBufferGeometryIntersection( this, material, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c );

    					if ( intersection ) {

    						intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics
    						intersects.push( intersection );

    					}

    				}

    			}

    		} else if ( position !== undefined ) {

    			// non-indexed buffer geometry

    			if ( Array.isArray( material ) ) {

    				for ( let i = 0, il = groups.length; i < il; i ++ ) {

    					const group = groups[ i ];
    					const groupMaterial = material[ group.materialIndex ];

    					const start = Math.max( group.start, drawRange.start );
    					const end = Math.min( position.count, Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ) );

    					for ( let j = start, jl = end; j < jl; j += 3 ) {

    						const a = j;
    						const b = j + 1;
    						const c = j + 2;

    						intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c );

    						if ( intersection ) {

    							intersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics
    							intersection.face.materialIndex = group.materialIndex;
    							intersects.push( intersection );

    						}

    					}

    				}

    			} else {

    				const start = Math.max( 0, drawRange.start );
    				const end = Math.min( position.count, ( drawRange.start + drawRange.count ) );

    				for ( let i = start, il = end; i < il; i += 3 ) {

    					const a = i;
    					const b = i + 1;
    					const c = i + 2;

    					intersection = checkBufferGeometryIntersection( this, material, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c );

    					if ( intersection ) {

    						intersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics
    						intersects.push( intersection );

    					}

    				}

    			}

    		}

    	}

    }

    function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {

    	let intersect;

    	if ( material.side === BackSide ) {

    		intersect = ray.intersectTriangle( pC, pB, pA, true, point );

    	} else {

    		intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );

    	}

    	if ( intersect === null ) return null;

    	_intersectionPointWorld.copy( point );
    	_intersectionPointWorld.applyMatrix4( object.matrixWorld );

    	const distance = raycaster.ray.origin.distanceTo( _intersectionPointWorld );

    	if ( distance < raycaster.near || distance > raycaster.far ) return null;

    	return {
    		distance: distance,
    		point: _intersectionPointWorld.clone(),
    		object: object
    	};

    }

    function checkBufferGeometryIntersection( object, material, raycaster, ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ) {

    	_vA$1.fromBufferAttribute( position, a );
    	_vB$1.fromBufferAttribute( position, b );
    	_vC$1.fromBufferAttribute( position, c );

    	const morphInfluences = object.morphTargetInfluences;

    	if ( morphPosition && morphInfluences ) {

    		_morphA.set( 0, 0, 0 );
    		_morphB.set( 0, 0, 0 );
    		_morphC.set( 0, 0, 0 );

    		for ( let i = 0, il = morphPosition.length; i < il; i ++ ) {

    			const influence = morphInfluences[ i ];
    			const morphAttribute = morphPosition[ i ];

    			if ( influence === 0 ) continue;

    			_tempA.fromBufferAttribute( morphAttribute, a );
    			_tempB.fromBufferAttribute( morphAttribute, b );
    			_tempC.fromBufferAttribute( morphAttribute, c );

    			if ( morphTargetsRelative ) {

    				_morphA.addScaledVector( _tempA, influence );
    				_morphB.addScaledVector( _tempB, influence );
    				_morphC.addScaledVector( _tempC, influence );

    			} else {

    				_morphA.addScaledVector( _tempA.sub( _vA$1 ), influence );
    				_morphB.addScaledVector( _tempB.sub( _vB$1 ), influence );
    				_morphC.addScaledVector( _tempC.sub( _vC$1 ), influence );

    			}

    		}

    		_vA$1.add( _morphA );
    		_vB$1.add( _morphB );
    		_vC$1.add( _morphC );

    	}

    	if ( object.isSkinnedMesh ) {

    		object.boneTransform( a, _vA$1 );
    		object.boneTransform( b, _vB$1 );
    		object.boneTransform( c, _vC$1 );

    	}

    	const intersection = checkIntersection( object, material, raycaster, ray, _vA$1, _vB$1, _vC$1, _intersectionPoint );

    	if ( intersection ) {

    		if ( uv ) {

    			_uvA$1.fromBufferAttribute( uv, a );
    			_uvB$1.fromBufferAttribute( uv, b );
    			_uvC$1.fromBufferAttribute( uv, c );

    			intersection.uv = Triangle.getUV( _intersectionPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2() );

    		}

    		if ( uv2 ) {

    			_uvA$1.fromBufferAttribute( uv2, a );
    			_uvB$1.fromBufferAttribute( uv2, b );
    			_uvC$1.fromBufferAttribute( uv2, c );

    			intersection.uv2 = Triangle.getUV( _intersectionPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2() );

    		}

    		const face = {
    			a: a,
    			b: b,
    			c: c,
    			normal: new Vector3(),
    			materialIndex: 0
    		};

    		Triangle.getNormal( _vA$1, _vB$1, _vC$1, face.normal );

    		intersection.face = face;

    	}

    	return intersection;

    }

    class BoxGeometry extends BufferGeometry {

    	constructor( width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1 ) {

    		super();

    		this.type = 'BoxGeometry';

    		this.parameters = {
    			width: width,
    			height: height,
    			depth: depth,
    			widthSegments: widthSegments,
    			heightSegments: heightSegments,
    			depthSegments: depthSegments
    		};

    		const scope = this;

    		// segments

    		widthSegments = Math.floor( widthSegments );
    		heightSegments = Math.floor( heightSegments );
    		depthSegments = Math.floor( depthSegments );

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		// helper variables

    		let numberOfVertices = 0;
    		let groupStart = 0;

    		// build each side of the box geometry

    		buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px
    		buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx
    		buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py
    		buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny
    		buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz
    		buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    		function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {

    			const segmentWidth = width / gridX;
    			const segmentHeight = height / gridY;

    			const widthHalf = width / 2;
    			const heightHalf = height / 2;
    			const depthHalf = depth / 2;

    			const gridX1 = gridX + 1;
    			const gridY1 = gridY + 1;

    			let vertexCounter = 0;
    			let groupCount = 0;

    			const vector = new Vector3();

    			// generate vertices, normals and uvs

    			for ( let iy = 0; iy < gridY1; iy ++ ) {

    				const y = iy * segmentHeight - heightHalf;

    				for ( let ix = 0; ix < gridX1; ix ++ ) {

    					const x = ix * segmentWidth - widthHalf;

    					// set values to correct vector component

    					vector[ u ] = x * udir;
    					vector[ v ] = y * vdir;
    					vector[ w ] = depthHalf;

    					// now apply vector to vertex buffer

    					vertices.push( vector.x, vector.y, vector.z );

    					// set values to correct vector component

    					vector[ u ] = 0;
    					vector[ v ] = 0;
    					vector[ w ] = depth > 0 ? 1 : - 1;

    					// now apply vector to normal buffer

    					normals.push( vector.x, vector.y, vector.z );

    					// uvs

    					uvs.push( ix / gridX );
    					uvs.push( 1 - ( iy / gridY ) );

    					// counters

    					vertexCounter += 1;

    				}

    			}

    			// indices

    			// 1. you need three indices to draw a single face
    			// 2. a single segment consists of two faces
    			// 3. so we need to generate six (2*3) indices per segment

    			for ( let iy = 0; iy < gridY; iy ++ ) {

    				for ( let ix = 0; ix < gridX; ix ++ ) {

    					const a = numberOfVertices + ix + gridX1 * iy;
    					const b = numberOfVertices + ix + gridX1 * ( iy + 1 );
    					const c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );
    					const d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;

    					// faces

    					indices.push( a, b, d );
    					indices.push( b, c, d );

    					// increase counter

    					groupCount += 6;

    				}

    			}

    			// add a group to the geometry. this will ensure multi material support

    			scope.addGroup( groupStart, groupCount, materialIndex );

    			// calculate new start value for groups

    			groupStart += groupCount;

    			// update total number of vertices

    			numberOfVertices += vertexCounter;

    		}

    	}

    	static fromJSON( data ) {

    		return new BoxGeometry( data.width, data.height, data.depth, data.widthSegments, data.heightSegments, data.depthSegments );

    	}

    }

    /**
     * Uniform Utilities
     */

    function cloneUniforms( src ) {

    	const dst = {};

    	for ( const u in src ) {

    		dst[ u ] = {};

    		for ( const p in src[ u ] ) {

    			const property = src[ u ][ p ];

    			if ( property && ( property.isColor ||
    				property.isMatrix3 || property.isMatrix4 ||
    				property.isVector2 || property.isVector3 || property.isVector4 ||
    				property.isTexture || property.isQuaternion ) ) {

    				dst[ u ][ p ] = property.clone();

    			} else if ( Array.isArray( property ) ) {

    				dst[ u ][ p ] = property.slice();

    			} else {

    				dst[ u ][ p ] = property;

    			}

    		}

    	}

    	return dst;

    }

    function mergeUniforms( uniforms ) {

    	const merged = {};

    	for ( let u = 0; u < uniforms.length; u ++ ) {

    		const tmp = cloneUniforms( uniforms[ u ] );

    		for ( const p in tmp ) {

    			merged[ p ] = tmp[ p ];

    		}

    	}

    	return merged;

    }

    function cloneUniformsGroups( src ) {

    	const dst = [];

    	for ( let u = 0; u < src.length; u ++ ) {

    		dst.push( src[ u ].clone() );

    	}

    	return dst;

    }

    // Legacy

    const UniformsUtils = { clone: cloneUniforms, merge: mergeUniforms };

    var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";

    var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";

    class ShaderMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isShaderMaterial = true;

    		this.type = 'ShaderMaterial';

    		this.defines = {};
    		this.uniforms = {};
    		this.uniformsGroups = [];

    		this.vertexShader = default_vertex;
    		this.fragmentShader = default_fragment;

    		this.linewidth = 1;

    		this.wireframe = false;
    		this.wireframeLinewidth = 1;

    		this.fog = false; // set to use scene fog
    		this.lights = false; // set to use scene lights
    		this.clipping = false; // set to use user-defined clipping planes

    		this.extensions = {
    			derivatives: false, // set to use derivatives
    			fragDepth: false, // set to use fragment depth values
    			drawBuffers: false, // set to use draw buffers
    			shaderTextureLOD: false // set to use shader texture LOD
    		};

    		// When rendered geometry doesn't include these attributes but the material does,
    		// use these default values in WebGL. This avoids errors when buffer data is missing.
    		this.defaultAttributeValues = {
    			'color': [ 1, 1, 1 ],
    			'uv': [ 0, 0 ],
    			'uv2': [ 0, 0 ]
    		};

    		this.index0AttributeName = undefined;
    		this.uniformsNeedUpdate = false;

    		this.glslVersion = null;

    		if ( parameters !== undefined ) {

    			this.setValues( parameters );

    		}

    	}

    	copy( source ) {

    		super.copy( source );

    		this.fragmentShader = source.fragmentShader;
    		this.vertexShader = source.vertexShader;

    		this.uniforms = cloneUniforms( source.uniforms );
    		this.uniformsGroups = cloneUniformsGroups( source.uniformsGroups );

    		this.defines = Object.assign( {}, source.defines );

    		this.wireframe = source.wireframe;
    		this.wireframeLinewidth = source.wireframeLinewidth;

    		this.fog = source.fog;
    		this.lights = source.lights;
    		this.clipping = source.clipping;

    		this.extensions = Object.assign( {}, source.extensions );

    		this.glslVersion = source.glslVersion;

    		return this;

    	}

    	toJSON( meta ) {

    		const data = super.toJSON( meta );

    		data.glslVersion = this.glslVersion;
    		data.uniforms = {};

    		for ( const name in this.uniforms ) {

    			const uniform = this.uniforms[ name ];
    			const value = uniform.value;

    			if ( value && value.isTexture ) {

    				data.uniforms[ name ] = {
    					type: 't',
    					value: value.toJSON( meta ).uuid
    				};

    			} else if ( value && value.isColor ) {

    				data.uniforms[ name ] = {
    					type: 'c',
    					value: value.getHex()
    				};

    			} else if ( value && value.isVector2 ) {

    				data.uniforms[ name ] = {
    					type: 'v2',
    					value: value.toArray()
    				};

    			} else if ( value && value.isVector3 ) {

    				data.uniforms[ name ] = {
    					type: 'v3',
    					value: value.toArray()
    				};

    			} else if ( value && value.isVector4 ) {

    				data.uniforms[ name ] = {
    					type: 'v4',
    					value: value.toArray()
    				};

    			} else if ( value && value.isMatrix3 ) {

    				data.uniforms[ name ] = {
    					type: 'm3',
    					value: value.toArray()
    				};

    			} else if ( value && value.isMatrix4 ) {

    				data.uniforms[ name ] = {
    					type: 'm4',
    					value: value.toArray()
    				};

    			} else {

    				data.uniforms[ name ] = {
    					value: value
    				};

    				// note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far

    			}

    		}

    		if ( Object.keys( this.defines ).length > 0 ) data.defines = this.defines;

    		data.vertexShader = this.vertexShader;
    		data.fragmentShader = this.fragmentShader;

    		const extensions = {};

    		for ( const key in this.extensions ) {

    			if ( this.extensions[ key ] === true ) extensions[ key ] = true;

    		}

    		if ( Object.keys( extensions ).length > 0 ) data.extensions = extensions;

    		return data;

    	}

    }

    class Camera extends Object3D {

    	constructor() {

    		super();

    		this.isCamera = true;

    		this.type = 'Camera';

    		this.matrixWorldInverse = new Matrix4();

    		this.projectionMatrix = new Matrix4();
    		this.projectionMatrixInverse = new Matrix4();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.matrixWorldInverse.copy( source.matrixWorldInverse );

    		this.projectionMatrix.copy( source.projectionMatrix );
    		this.projectionMatrixInverse.copy( source.projectionMatrixInverse );

    		return this;

    	}

    	getWorldDirection( target ) {

    		this.updateWorldMatrix( true, false );

    		const e = this.matrixWorld.elements;

    		return target.set( - e[ 8 ], - e[ 9 ], - e[ 10 ] ).normalize();

    	}

    	updateMatrixWorld( force ) {

    		super.updateMatrixWorld( force );

    		this.matrixWorldInverse.copy( this.matrixWorld ).invert();

    	}

    	updateWorldMatrix( updateParents, updateChildren ) {

    		super.updateWorldMatrix( updateParents, updateChildren );

    		this.matrixWorldInverse.copy( this.matrixWorld ).invert();

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    class PerspectiveCamera extends Camera {

    	constructor( fov = 50, aspect = 1, near = 0.1, far = 2000 ) {

    		super();

    		this.isPerspectiveCamera = true;

    		this.type = 'PerspectiveCamera';

    		this.fov = fov;
    		this.zoom = 1;

    		this.near = near;
    		this.far = far;
    		this.focus = 10;

    		this.aspect = aspect;
    		this.view = null;

    		this.filmGauge = 35;	// width of the film (default in millimeters)
    		this.filmOffset = 0;	// horizontal film offset (same unit as gauge)

    		this.updateProjectionMatrix();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.fov = source.fov;
    		this.zoom = source.zoom;

    		this.near = source.near;
    		this.far = source.far;
    		this.focus = source.focus;

    		this.aspect = source.aspect;
    		this.view = source.view === null ? null : Object.assign( {}, source.view );

    		this.filmGauge = source.filmGauge;
    		this.filmOffset = source.filmOffset;

    		return this;

    	}

    	/**
    	 * Sets the FOV by focal length in respect to the current .filmGauge.
    	 *
    	 * The default film gauge is 35, so that the focal length can be specified for
    	 * a 35mm (full frame) camera.
    	 *
    	 * Values for focal length and film gauge must have the same unit.
    	 */
    	setFocalLength( focalLength ) {

    		/** see {@link http://www.bobatkins.com/photography/technical/field_of_view.html} */
    		const vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;

    		this.fov = RAD2DEG * 2 * Math.atan( vExtentSlope );
    		this.updateProjectionMatrix();

    	}

    	/**
    	 * Calculates the focal length from the current .fov and .filmGauge.
    	 */
    	getFocalLength() {

    		const vExtentSlope = Math.tan( DEG2RAD * 0.5 * this.fov );

    		return 0.5 * this.getFilmHeight() / vExtentSlope;

    	}

    	getEffectiveFOV() {

    		return RAD2DEG * 2 * Math.atan(
    			Math.tan( DEG2RAD * 0.5 * this.fov ) / this.zoom );

    	}

    	getFilmWidth() {

    		// film not completely covered in portrait format (aspect < 1)
    		return this.filmGauge * Math.min( this.aspect, 1 );

    	}

    	getFilmHeight() {

    		// film not completely covered in landscape format (aspect > 1)
    		return this.filmGauge / Math.max( this.aspect, 1 );

    	}

    	/**
    	 * Sets an offset in a larger frustum. This is useful for multi-window or
    	 * multi-monitor/multi-machine setups.
    	 *
    	 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
    	 * the monitors are in grid like this
    	 *
    	 *   +---+---+---+
    	 *   | A | B | C |
    	 *   +---+---+---+
    	 *   | D | E | F |
    	 *   +---+---+---+
    	 *
    	 * then for each monitor you would call it like this
    	 *
    	 *   const w = 1920;
    	 *   const h = 1080;
    	 *   const fullWidth = w * 3;
    	 *   const fullHeight = h * 2;
    	 *
    	 *   --A--
    	 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
    	 *   --B--
    	 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
    	 *   --C--
    	 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
    	 *   --D--
    	 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
    	 *   --E--
    	 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
    	 *   --F--
    	 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
    	 *
    	 *   Note there is no reason monitors have to be the same size or in a grid.
    	 */
    	setViewOffset( fullWidth, fullHeight, x, y, width, height ) {

    		this.aspect = fullWidth / fullHeight;

    		if ( this.view === null ) {

    			this.view = {
    				enabled: true,
    				fullWidth: 1,
    				fullHeight: 1,
    				offsetX: 0,
    				offsetY: 0,
    				width: 1,
    				height: 1
    			};

    		}

    		this.view.enabled = true;
    		this.view.fullWidth = fullWidth;
    		this.view.fullHeight = fullHeight;
    		this.view.offsetX = x;
    		this.view.offsetY = y;
    		this.view.width = width;
    		this.view.height = height;

    		this.updateProjectionMatrix();

    	}

    	clearViewOffset() {

    		if ( this.view !== null ) {

    			this.view.enabled = false;

    		}

    		this.updateProjectionMatrix();

    	}

    	updateProjectionMatrix() {

    		const near = this.near;
    		let top = near * Math.tan( DEG2RAD * 0.5 * this.fov ) / this.zoom;
    		let height = 2 * top;
    		let width = this.aspect * height;
    		let left = - 0.5 * width;
    		const view = this.view;

    		if ( this.view !== null && this.view.enabled ) {

    			const fullWidth = view.fullWidth,
    				fullHeight = view.fullHeight;

    			left += view.offsetX * width / fullWidth;
    			top -= view.offsetY * height / fullHeight;
    			width *= view.width / fullWidth;
    			height *= view.height / fullHeight;

    		}

    		const skew = this.filmOffset;
    		if ( skew !== 0 ) left += near * skew / this.getFilmWidth();

    		this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );

    		this.projectionMatrixInverse.copy( this.projectionMatrix ).invert();

    	}

    	toJSON( meta ) {

    		const data = super.toJSON( meta );

    		data.object.fov = this.fov;
    		data.object.zoom = this.zoom;

    		data.object.near = this.near;
    		data.object.far = this.far;
    		data.object.focus = this.focus;

    		data.object.aspect = this.aspect;

    		if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );

    		data.object.filmGauge = this.filmGauge;
    		data.object.filmOffset = this.filmOffset;

    		return data;

    	}

    }

    const fov = 90, aspect = 1;

    class CubeCamera extends Object3D {

    	constructor( near, far, renderTarget ) {

    		super();

    		this.type = 'CubeCamera';

    		this.renderTarget = renderTarget;

    		const cameraPX = new PerspectiveCamera( fov, aspect, near, far );
    		cameraPX.layers = this.layers;
    		cameraPX.up.set( 0, - 1, 0 );
    		cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
    		this.add( cameraPX );

    		const cameraNX = new PerspectiveCamera( fov, aspect, near, far );
    		cameraNX.layers = this.layers;
    		cameraNX.up.set( 0, - 1, 0 );
    		cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
    		this.add( cameraNX );

    		const cameraPY = new PerspectiveCamera( fov, aspect, near, far );
    		cameraPY.layers = this.layers;
    		cameraPY.up.set( 0, 0, 1 );
    		cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
    		this.add( cameraPY );

    		const cameraNY = new PerspectiveCamera( fov, aspect, near, far );
    		cameraNY.layers = this.layers;
    		cameraNY.up.set( 0, 0, - 1 );
    		cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
    		this.add( cameraNY );

    		const cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
    		cameraPZ.layers = this.layers;
    		cameraPZ.up.set( 0, - 1, 0 );
    		cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
    		this.add( cameraPZ );

    		const cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
    		cameraNZ.layers = this.layers;
    		cameraNZ.up.set( 0, - 1, 0 );
    		cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
    		this.add( cameraNZ );

    	}

    	update( renderer, scene ) {

    		if ( this.parent === null ) this.updateMatrixWorld();

    		const renderTarget = this.renderTarget;

    		const [ cameraPX, cameraNX, cameraPY, cameraNY, cameraPZ, cameraNZ ] = this.children;

    		const currentRenderTarget = renderer.getRenderTarget();

    		const currentToneMapping = renderer.toneMapping;
    		const currentXrEnabled = renderer.xr.enabled;

    		renderer.toneMapping = NoToneMapping;
    		renderer.xr.enabled = false;

    		const generateMipmaps = renderTarget.texture.generateMipmaps;

    		renderTarget.texture.generateMipmaps = false;

    		renderer.setRenderTarget( renderTarget, 0 );
    		renderer.render( scene, cameraPX );

    		renderer.setRenderTarget( renderTarget, 1 );
    		renderer.render( scene, cameraNX );

    		renderer.setRenderTarget( renderTarget, 2 );
    		renderer.render( scene, cameraPY );

    		renderer.setRenderTarget( renderTarget, 3 );
    		renderer.render( scene, cameraNY );

    		renderer.setRenderTarget( renderTarget, 4 );
    		renderer.render( scene, cameraPZ );

    		renderTarget.texture.generateMipmaps = generateMipmaps;

    		renderer.setRenderTarget( renderTarget, 5 );
    		renderer.render( scene, cameraNZ );

    		renderer.setRenderTarget( currentRenderTarget );

    		renderer.toneMapping = currentToneMapping;
    		renderer.xr.enabled = currentXrEnabled;

    		renderTarget.texture.needsPMREMUpdate = true;

    	}

    }

    class CubeTexture extends Texture {

    	constructor( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {

    		images = images !== undefined ? images : [];
    		mapping = mapping !== undefined ? mapping : CubeReflectionMapping;

    		super( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

    		this.isCubeTexture = true;

    		this.flipY = false;

    	}

    	get images() {

    		return this.image;

    	}

    	set images( value ) {

    		this.image = value;

    	}

    }

    class WebGLCubeRenderTarget extends WebGLRenderTarget {

    	constructor( size, options = {} ) {

    		super( size, size, options );

    		this.isWebGLCubeRenderTarget = true;

    		const image = { width: size, height: size, depth: 1 };
    		const images = [ image, image, image, image, image, image ];

    		this.texture = new CubeTexture( images, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );

    		// By convention -- likely based on the RenderMan spec from the 1990's -- cube maps are specified by WebGL (and three.js)
    		// in a coordinate system in which positive-x is to the right when looking up the positive-z axis -- in other words,
    		// in a left-handed coordinate system. By continuing this convention, preexisting cube maps continued to render correctly.

    		// three.js uses a right-handed coordinate system. So environment maps used in three.js appear to have px and nx swapped
    		// and the flag isRenderTargetTexture controls this conversion. The flip is not required when using WebGLCubeRenderTarget.texture
    		// as a cube texture (this is detected when isRenderTargetTexture is set to true for cube textures).

    		this.texture.isRenderTargetTexture = true;

    		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
    		this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;

    	}

    	fromEquirectangularTexture( renderer, texture ) {

    		this.texture.type = texture.type;
    		this.texture.encoding = texture.encoding;

    		this.texture.generateMipmaps = texture.generateMipmaps;
    		this.texture.minFilter = texture.minFilter;
    		this.texture.magFilter = texture.magFilter;

    		const shader = {

    			uniforms: {
    				tEquirect: { value: null },
    			},

    			vertexShader: /* glsl */`

				varying vec3 vWorldDirection;

				vec3 transformDirection( in vec3 dir, in mat4 matrix ) {

					return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );

				}

				void main() {

					vWorldDirection = transformDirection( position, modelMatrix );

					#include <begin_vertex>
					#include <project_vertex>

				}
			`,

    			fragmentShader: /* glsl */`

				uniform sampler2D tEquirect;

				varying vec3 vWorldDirection;

				#include <common>

				void main() {

					vec3 direction = normalize( vWorldDirection );

					vec2 sampleUV = equirectUv( direction );

					gl_FragColor = texture2D( tEquirect, sampleUV );

				}
			`
    		};

    		const geometry = new BoxGeometry( 5, 5, 5 );

    		const material = new ShaderMaterial( {

    			name: 'CubemapFromEquirect',

    			uniforms: cloneUniforms( shader.uniforms ),
    			vertexShader: shader.vertexShader,
    			fragmentShader: shader.fragmentShader,
    			side: BackSide,
    			blending: NoBlending

    		} );

    		material.uniforms.tEquirect.value = texture;

    		const mesh = new Mesh( geometry, material );

    		const currentMinFilter = texture.minFilter;

    		// Avoid blurred poles
    		if ( texture.minFilter === LinearMipmapLinearFilter ) texture.minFilter = LinearFilter;

    		const camera = new CubeCamera( 1, 10, this );
    		camera.update( renderer, mesh );

    		texture.minFilter = currentMinFilter;

    		mesh.geometry.dispose();
    		mesh.material.dispose();

    		return this;

    	}

    	clear( renderer, color, depth, stencil ) {

    		const currentRenderTarget = renderer.getRenderTarget();

    		for ( let i = 0; i < 6; i ++ ) {

    			renderer.setRenderTarget( this, i );

    			renderer.clear( color, depth, stencil );

    		}

    		renderer.setRenderTarget( currentRenderTarget );

    	}

    }

    const _vector1 = /*@__PURE__*/ new Vector3();
    const _vector2 = /*@__PURE__*/ new Vector3();
    const _normalMatrix = /*@__PURE__*/ new Matrix3();

    class Plane {

    	constructor( normal = new Vector3( 1, 0, 0 ), constant = 0 ) {

    		this.isPlane = true;

    		// normal is assumed to be normalized

    		this.normal = normal;
    		this.constant = constant;

    	}

    	set( normal, constant ) {

    		this.normal.copy( normal );
    		this.constant = constant;

    		return this;

    	}

    	setComponents( x, y, z, w ) {

    		this.normal.set( x, y, z );
    		this.constant = w;

    		return this;

    	}

    	setFromNormalAndCoplanarPoint( normal, point ) {

    		this.normal.copy( normal );
    		this.constant = - point.dot( this.normal );

    		return this;

    	}

    	setFromCoplanarPoints( a, b, c ) {

    		const normal = _vector1.subVectors( c, b ).cross( _vector2.subVectors( a, b ) ).normalize();

    		// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?

    		this.setFromNormalAndCoplanarPoint( normal, a );

    		return this;

    	}

    	copy( plane ) {

    		this.normal.copy( plane.normal );
    		this.constant = plane.constant;

    		return this;

    	}

    	normalize() {

    		// Note: will lead to a divide by zero if the plane is invalid.

    		const inverseNormalLength = 1.0 / this.normal.length();
    		this.normal.multiplyScalar( inverseNormalLength );
    		this.constant *= inverseNormalLength;

    		return this;

    	}

    	negate() {

    		this.constant *= - 1;
    		this.normal.negate();

    		return this;

    	}

    	distanceToPoint( point ) {

    		return this.normal.dot( point ) + this.constant;

    	}

    	distanceToSphere( sphere ) {

    		return this.distanceToPoint( sphere.center ) - sphere.radius;

    	}

    	projectPoint( point, target ) {

    		return target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );

    	}

    	intersectLine( line, target ) {

    		const direction = line.delta( _vector1 );

    		const denominator = this.normal.dot( direction );

    		if ( denominator === 0 ) {

    			// line is coplanar, return origin
    			if ( this.distanceToPoint( line.start ) === 0 ) {

    				return target.copy( line.start );

    			}

    			// Unsure if this is the correct method to handle this case.
    			return null;

    		}

    		const t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;

    		if ( t < 0 || t > 1 ) {

    			return null;

    		}

    		return target.copy( direction ).multiplyScalar( t ).add( line.start );

    	}

    	intersectsLine( line ) {

    		// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.

    		const startSign = this.distanceToPoint( line.start );
    		const endSign = this.distanceToPoint( line.end );

    		return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );

    	}

    	intersectsBox( box ) {

    		return box.intersectsPlane( this );

    	}

    	intersectsSphere( sphere ) {

    		return sphere.intersectsPlane( this );

    	}

    	coplanarPoint( target ) {

    		return target.copy( this.normal ).multiplyScalar( - this.constant );

    	}

    	applyMatrix4( matrix, optionalNormalMatrix ) {

    		const normalMatrix = optionalNormalMatrix || _normalMatrix.getNormalMatrix( matrix );

    		const referencePoint = this.coplanarPoint( _vector1 ).applyMatrix4( matrix );

    		const normal = this.normal.applyMatrix3( normalMatrix ).normalize();

    		this.constant = - referencePoint.dot( normal );

    		return this;

    	}

    	translate( offset ) {

    		this.constant -= offset.dot( this.normal );

    		return this;

    	}

    	equals( plane ) {

    		return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    const _sphere$2 = /*@__PURE__*/ new Sphere();
    const _vector$7 = /*@__PURE__*/ new Vector3();

    class Frustum {

    	constructor( p0 = new Plane(), p1 = new Plane(), p2 = new Plane(), p3 = new Plane(), p4 = new Plane(), p5 = new Plane() ) {

    		this.planes = [ p0, p1, p2, p3, p4, p5 ];

    	}

    	set( p0, p1, p2, p3, p4, p5 ) {

    		const planes = this.planes;

    		planes[ 0 ].copy( p0 );
    		planes[ 1 ].copy( p1 );
    		planes[ 2 ].copy( p2 );
    		planes[ 3 ].copy( p3 );
    		planes[ 4 ].copy( p4 );
    		planes[ 5 ].copy( p5 );

    		return this;

    	}

    	copy( frustum ) {

    		const planes = this.planes;

    		for ( let i = 0; i < 6; i ++ ) {

    			planes[ i ].copy( frustum.planes[ i ] );

    		}

    		return this;

    	}

    	setFromProjectionMatrix( m ) {

    		const planes = this.planes;
    		const me = m.elements;
    		const me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
    		const me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
    		const me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
    		const me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];

    		planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
    		planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
    		planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
    		planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
    		planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
    		planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();

    		return this;

    	}

    	intersectsObject( object ) {

    		const geometry = object.geometry;

    		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

    		_sphere$2.copy( geometry.boundingSphere ).applyMatrix4( object.matrixWorld );

    		return this.intersectsSphere( _sphere$2 );

    	}

    	intersectsSprite( sprite ) {

    		_sphere$2.center.set( 0, 0, 0 );
    		_sphere$2.radius = 0.7071067811865476;
    		_sphere$2.applyMatrix4( sprite.matrixWorld );

    		return this.intersectsSphere( _sphere$2 );

    	}

    	intersectsSphere( sphere ) {

    		const planes = this.planes;
    		const center = sphere.center;
    		const negRadius = - sphere.radius;

    		for ( let i = 0; i < 6; i ++ ) {

    			const distance = planes[ i ].distanceToPoint( center );

    			if ( distance < negRadius ) {

    				return false;

    			}

    		}

    		return true;

    	}

    	intersectsBox( box ) {

    		const planes = this.planes;

    		for ( let i = 0; i < 6; i ++ ) {

    			const plane = planes[ i ];

    			// corner at max distance

    			_vector$7.x = plane.normal.x > 0 ? box.max.x : box.min.x;
    			_vector$7.y = plane.normal.y > 0 ? box.max.y : box.min.y;
    			_vector$7.z = plane.normal.z > 0 ? box.max.z : box.min.z;

    			if ( plane.distanceToPoint( _vector$7 ) < 0 ) {

    				return false;

    			}

    		}

    		return true;

    	}

    	containsPoint( point ) {

    		const planes = this.planes;

    		for ( let i = 0; i < 6; i ++ ) {

    			if ( planes[ i ].distanceToPoint( point ) < 0 ) {

    				return false;

    			}

    		}

    		return true;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    function WebGLAnimation() {

    	let context = null;
    	let isAnimating = false;
    	let animationLoop = null;
    	let requestId = null;

    	function onAnimationFrame( time, frame ) {

    		animationLoop( time, frame );

    		requestId = context.requestAnimationFrame( onAnimationFrame );

    	}

    	return {

    		start: function () {

    			if ( isAnimating === true ) return;
    			if ( animationLoop === null ) return;

    			requestId = context.requestAnimationFrame( onAnimationFrame );

    			isAnimating = true;

    		},

    		stop: function () {

    			context.cancelAnimationFrame( requestId );

    			isAnimating = false;

    		},

    		setAnimationLoop: function ( callback ) {

    			animationLoop = callback;

    		},

    		setContext: function ( value ) {

    			context = value;

    		}

    	};

    }

    function WebGLAttributes( gl, capabilities ) {

    	const isWebGL2 = capabilities.isWebGL2;

    	const buffers = new WeakMap();

    	function createBuffer( attribute, bufferType ) {

    		const array = attribute.array;
    		const usage = attribute.usage;

    		const buffer = gl.createBuffer();

    		gl.bindBuffer( bufferType, buffer );
    		gl.bufferData( bufferType, array, usage );

    		attribute.onUploadCallback();

    		let type;

    		if ( array instanceof Float32Array ) {

    			type = 5126;

    		} else if ( array instanceof Uint16Array ) {

    			if ( attribute.isFloat16BufferAttribute ) {

    				if ( isWebGL2 ) {

    					type = 5131;

    				} else {

    					throw new Error( 'THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2.' );

    				}

    			} else {

    				type = 5123;

    			}

    		} else if ( array instanceof Int16Array ) {

    			type = 5122;

    		} else if ( array instanceof Uint32Array ) {

    			type = 5125;

    		} else if ( array instanceof Int32Array ) {

    			type = 5124;

    		} else if ( array instanceof Int8Array ) {

    			type = 5120;

    		} else if ( array instanceof Uint8Array ) {

    			type = 5121;

    		} else if ( array instanceof Uint8ClampedArray ) {

    			type = 5121;

    		} else {

    			throw new Error( 'THREE.WebGLAttributes: Unsupported buffer data format: ' + array );

    		}

    		return {
    			buffer: buffer,
    			type: type,
    			bytesPerElement: array.BYTES_PER_ELEMENT,
    			version: attribute.version
    		};

    	}

    	function updateBuffer( buffer, attribute, bufferType ) {

    		const array = attribute.array;
    		const updateRange = attribute.updateRange;

    		gl.bindBuffer( bufferType, buffer );

    		if ( updateRange.count === - 1 ) {

    			// Not using update ranges

    			gl.bufferSubData( bufferType, 0, array );

    		} else {

    			if ( isWebGL2 ) {

    				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
    					array, updateRange.offset, updateRange.count );

    			} else {

    				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
    					array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );

    			}

    			updateRange.count = - 1; // reset range

    		}

    	}

    	//

    	function get( attribute ) {

    		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

    		return buffers.get( attribute );

    	}

    	function remove( attribute ) {

    		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

    		const data = buffers.get( attribute );

    		if ( data ) {

    			gl.deleteBuffer( data.buffer );

    			buffers.delete( attribute );

    		}

    	}

    	function update( attribute, bufferType ) {

    		if ( attribute.isGLBufferAttribute ) {

    			const cached = buffers.get( attribute );

    			if ( ! cached || cached.version < attribute.version ) {

    				buffers.set( attribute, {
    					buffer: attribute.buffer,
    					type: attribute.type,
    					bytesPerElement: attribute.elementSize,
    					version: attribute.version
    				} );

    			}

    			return;

    		}

    		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

    		const data = buffers.get( attribute );

    		if ( data === undefined ) {

    			buffers.set( attribute, createBuffer( attribute, bufferType ) );

    		} else if ( data.version < attribute.version ) {

    			updateBuffer( data.buffer, attribute, bufferType );

    			data.version = attribute.version;

    		}

    	}

    	return {

    		get: get,
    		remove: remove,
    		update: update

    	};

    }

    class PlaneGeometry extends BufferGeometry {

    	constructor( width = 1, height = 1, widthSegments = 1, heightSegments = 1 ) {

    		super();

    		this.type = 'PlaneGeometry';

    		this.parameters = {
    			width: width,
    			height: height,
    			widthSegments: widthSegments,
    			heightSegments: heightSegments
    		};

    		const width_half = width / 2;
    		const height_half = height / 2;

    		const gridX = Math.floor( widthSegments );
    		const gridY = Math.floor( heightSegments );

    		const gridX1 = gridX + 1;
    		const gridY1 = gridY + 1;

    		const segment_width = width / gridX;
    		const segment_height = height / gridY;

    		//

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		for ( let iy = 0; iy < gridY1; iy ++ ) {

    			const y = iy * segment_height - height_half;

    			for ( let ix = 0; ix < gridX1; ix ++ ) {

    				const x = ix * segment_width - width_half;

    				vertices.push( x, - y, 0 );

    				normals.push( 0, 0, 1 );

    				uvs.push( ix / gridX );
    				uvs.push( 1 - ( iy / gridY ) );

    			}

    		}

    		for ( let iy = 0; iy < gridY; iy ++ ) {

    			for ( let ix = 0; ix < gridX; ix ++ ) {

    				const a = ix + gridX1 * iy;
    				const b = ix + gridX1 * ( iy + 1 );
    				const c = ( ix + 1 ) + gridX1 * ( iy + 1 );
    				const d = ( ix + 1 ) + gridX1 * iy;

    				indices.push( a, b, d );
    				indices.push( b, c, d );

    			}

    		}

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    	}

    	static fromJSON( data ) {

    		return new PlaneGeometry( data.width, data.height, data.widthSegments, data.heightSegments );

    	}

    }

    var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif";

    var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";

    var alphatest_fragment = "#ifdef USE_ALPHATEST\n\tif ( diffuseColor.a < alphaTest ) discard;\n#endif";

    var alphatest_pars_fragment = "#ifdef USE_ALPHATEST\n\tuniform float alphaTest;\n#endif";

    var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.roughness );\n\t#endif\n#endif";

    var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";

    var begin_vertex = "vec3 transformed = vec3( position );";

    var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif";

    var bsdfs = "vec3 BRDF_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nfloat F_Schlick( const in float f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nvec3 Schlick_to_F0( const in vec3 f, const in float f90, const in float dotVH ) {\n    float x = clamp( 1.0 - dotVH, 0.0, 1.0 );\n    float x2 = x * x;\n    float x5 = clamp( x * x2 * x2, 0.0, 0.9999 );\n    return ( f - vec3( f90 ) * x5 ) / ( 1.0 - x5 );\n}\nfloat V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 f0, const in float f90, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( f0, f90, dotVH );\n\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( V * D );\n}\n#ifdef USE_IRIDESCENCE\n\tvec3 BRDF_GGX_Iridescence( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 f0, const in float f90, const in float iridescence, const in vec3 iridescenceFresnel, const in float roughness ) {\n\t\tfloat alpha = pow2( roughness );\n\t\tvec3 halfDir = normalize( lightDir + viewDir );\n\t\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\t\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\t\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\t\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\t\tvec3 F = mix( F_Schlick( f0, f90, dotVH ), iridescenceFresnel, iridescence );\n\t\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\t\tfloat D = D_GGX( alpha, dotNH );\n\t\treturn F * ( V * D );\n\t}\n#endif\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_BlinnPhong( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, 1.0, dotVH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie( float roughness, float dotNH ) {\n\tfloat alpha = pow2( roughness );\n\tfloat invAlpha = 1.0 / alpha;\n\tfloat cos2h = dotNH * dotNH;\n\tfloat sin2h = max( 1.0 - cos2h, 0.0078125 );\n\treturn ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI );\n}\nfloat V_Neubelt( float dotNV, float dotNL ) {\n\treturn saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) );\n}\nvec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat D = D_Charlie( sheenRoughness, dotNH );\n\tfloat V = V_Neubelt( dotNV, dotNL );\n\treturn sheenColor * ( D * V );\n}\n#endif";

    var iridescence_fragment = "#ifdef USE_IRIDESCENCE\n\tconst mat3 XYZ_TO_REC709 = mat3(\n\t\t 3.2404542, -0.9692660,  0.0556434,\n\t\t-1.5371385,  1.8760108, -0.2040259,\n\t\t-0.4985314,  0.0415560,  1.0572252\n\t);\n\tvec3 Fresnel0ToIor( vec3 fresnel0 ) {\n\t\tvec3 sqrtF0 = sqrt( fresnel0 );\n\t\treturn ( vec3( 1.0 ) + sqrtF0 ) / ( vec3( 1.0 ) - sqrtF0 );\n\t}\n\tvec3 IorToFresnel0( vec3 transmittedIor, float incidentIor ) {\n\t\treturn pow2( ( transmittedIor - vec3( incidentIor ) ) / ( transmittedIor + vec3( incidentIor ) ) );\n\t}\n\tfloat IorToFresnel0( float transmittedIor, float incidentIor ) {\n\t\treturn pow2( ( transmittedIor - incidentIor ) / ( transmittedIor + incidentIor ));\n\t}\n\tvec3 evalSensitivity( float OPD, vec3 shift ) {\n\t\tfloat phase = 2.0 * PI * OPD * 1.0e-9;\n\t\tvec3 val = vec3( 5.4856e-13, 4.4201e-13, 5.2481e-13 );\n\t\tvec3 pos = vec3( 1.6810e+06, 1.7953e+06, 2.2084e+06 );\n\t\tvec3 var = vec3( 4.3278e+09, 9.3046e+09, 6.6121e+09 );\n\t\tvec3 xyz = val * sqrt( 2.0 * PI * var ) * cos( pos * phase + shift ) * exp( - pow2( phase ) * var );\n\t\txyz.x += 9.7470e-14 * sqrt( 2.0 * PI * 4.5282e+09 ) * cos( 2.2399e+06 * phase + shift[ 0 ] ) * exp( - 4.5282e+09 * pow2( phase ) );\n\t\txyz /= 1.0685e-7;\n\t\tvec3 rgb = XYZ_TO_REC709 * xyz;\n\t\treturn rgb;\n\t}\n\tvec3 evalIridescence( float outsideIOR, float eta2, float cosTheta1, float thinFilmThickness, vec3 baseF0 ) {\n\t\tvec3 I;\n\t\tfloat iridescenceIOR = mix( outsideIOR, eta2, smoothstep( 0.0, 0.03, thinFilmThickness ) );\n\t\tfloat sinTheta2Sq = pow2( outsideIOR / iridescenceIOR ) * ( 1.0 - pow2( cosTheta1 ) );\n\t\tfloat cosTheta2Sq = 1.0 - sinTheta2Sq;\n\t\tif ( cosTheta2Sq < 0.0 ) {\n\t\t\t return vec3( 1.0 );\n\t\t}\n\t\tfloat cosTheta2 = sqrt( cosTheta2Sq );\n\t\tfloat R0 = IorToFresnel0( iridescenceIOR, outsideIOR );\n\t\tfloat R12 = F_Schlick( R0, 1.0, cosTheta1 );\n\t\tfloat R21 = R12;\n\t\tfloat T121 = 1.0 - R12;\n\t\tfloat phi12 = 0.0;\n\t\tif ( iridescenceIOR < outsideIOR ) phi12 = PI;\n\t\tfloat phi21 = PI - phi12;\n\t\tvec3 baseIOR = Fresnel0ToIor( clamp( baseF0, 0.0, 0.9999 ) );\t\tvec3 R1 = IorToFresnel0( baseIOR, iridescenceIOR );\n\t\tvec3 R23 = F_Schlick( R1, 1.0, cosTheta2 );\n\t\tvec3 phi23 = vec3( 0.0 );\n\t\tif ( baseIOR[ 0 ] < iridescenceIOR ) phi23[ 0 ] = PI;\n\t\tif ( baseIOR[ 1 ] < iridescenceIOR ) phi23[ 1 ] = PI;\n\t\tif ( baseIOR[ 2 ] < iridescenceIOR ) phi23[ 2 ] = PI;\n\t\tfloat OPD = 2.0 * iridescenceIOR * thinFilmThickness * cosTheta2;\n\t\tvec3 phi = vec3( phi21 ) + phi23;\n\t\tvec3 R123 = clamp( R12 * R23, 1e-5, 0.9999 );\n\t\tvec3 r123 = sqrt( R123 );\n\t\tvec3 Rs = pow2( T121 ) * R23 / ( vec3( 1.0 ) - R123 );\n\t\tvec3 C0 = R12 + Rs;\n\t\tI = C0;\n\t\tvec3 Cm = Rs - T121;\n\t\tfor ( int m = 1; m <= 2; ++ m ) {\n\t\t\tCm *= r123;\n\t\t\tvec3 Sm = 2.0 * evalSensitivity( float( m ) * OPD, float( m ) * phi );\n\t\t\tI += Cm * Sm;\n\t\t}\n\t\treturn max( I, vec3( 0.0 ) );\n\t}\n#endif";

    var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = dFdx( surf_pos.xyz );\n\t\tvec3 vSigmaY = dFdy( surf_pos.xyz );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif";

    var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif";

    var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";

    var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif";

    var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif";

    var color_fragment = "#if defined( USE_COLOR_ALPHA )\n\tdiffuseColor *= vColor;\n#elif defined( USE_COLOR )\n\tdiffuseColor.rgb *= vColor;\n#endif";

    var color_pars_fragment = "#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR )\n\tvarying vec3 vColor;\n#endif";

    var color_pars_vertex = "#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif";

    var color_vertex = "#if defined( USE_COLOR_ALPHA )\n\tvColor = vec4( 1.0 );\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor *= color;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif";

    var common = "#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement( a ) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nvec3 pow2( const in vec3 x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); }\nfloat average( const in vec3 v ) { return dot( v, vec3( 0.3333333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract( sin( sn ) * c );\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat luminance( const in vec3 rgb ) {\n\tconst vec3 weights = vec3( 0.2126729, 0.7151522, 0.0721750 );\n\treturn dot( weights, rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}";

    var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 2.0 ) + 1.0;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tuv.x += filterInt * 3.0 * cubeUV_minTileSize;\n\t\tuv.y += 4.0 * ( exp2( CUBEUV_MAX_MIP ) - faceSize );\n\t\tuv.x *= CUBEUV_TEXEL_WIDTH;\n\t\tuv.y *= CUBEUV_TEXEL_HEIGHT;\n\t\t#ifdef texture2DGradEXT\n\t\t\treturn texture2DGradEXT( envMap, uv, vec2( 0.0 ), vec2( 0.0 ) ).rgb;\n\t\t#else\n\t\t\treturn texture2D( envMap, uv ).rgb;\n\t\t#endif\n\t}\n\t#define cubeUV_r0 1.0\n\t#define cubeUV_v0 0.339\n\t#define cubeUV_m0 - 2.0\n\t#define cubeUV_r1 0.8\n\t#define cubeUV_v1 0.276\n\t#define cubeUV_m1 - 1.0\n\t#define cubeUV_r4 0.4\n\t#define cubeUV_v4 0.046\n\t#define cubeUV_m4 2.0\n\t#define cubeUV_r5 0.305\n\t#define cubeUV_v5 0.016\n\t#define cubeUV_m5 3.0\n\t#define cubeUV_r6 0.21\n\t#define cubeUV_v6 0.0038\n\t#define cubeUV_m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= cubeUV_r1 ) {\n\t\t\tmip = ( cubeUV_r0 - roughness ) * ( cubeUV_m1 - cubeUV_m0 ) / ( cubeUV_r0 - cubeUV_r1 ) + cubeUV_m0;\n\t\t} else if ( roughness >= cubeUV_r4 ) {\n\t\t\tmip = ( cubeUV_r1 - roughness ) * ( cubeUV_m4 - cubeUV_m1 ) / ( cubeUV_r1 - cubeUV_r4 ) + cubeUV_m1;\n\t\t} else if ( roughness >= cubeUV_r5 ) {\n\t\t\tmip = ( cubeUV_r4 - roughness ) * ( cubeUV_m5 - cubeUV_m4 ) / ( cubeUV_r4 - cubeUV_r5 ) + cubeUV_m4;\n\t\t} else if ( roughness >= cubeUV_r6 ) {\n\t\t\tmip = ( cubeUV_r5 - roughness ) * ( cubeUV_m6 - cubeUV_m5 ) / ( cubeUV_r5 - cubeUV_r6 ) + cubeUV_m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), cubeUV_m0, CUBEUV_MAX_MIP );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif";

    var defaultnormal_vertex = "vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif";

    var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif";

    var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif";

    var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif";

    var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif";

    var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );";

    var encodings_pars_fragment = "vec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}";

    var envmap_fragment = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif";

    var envmap_common_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif";

    var envmap_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif";

    var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif";

    var envmap_vertex = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif";

    var fog_vertex = "#ifdef USE_FOG\n\tvFogDepth = - mvPosition.z;\n#endif";

    var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float vFogDepth;\n#endif";

    var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, vFogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";

    var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float vFogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif";

    var gradientmap_pars_fragment = "#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn vec3( texture2D( gradientMap, coord ).r );\n\t#else\n\t\tvec2 fw = fwidth( coord ) * 0.5;\n\t\treturn mix( vec3( 0.7 ), vec3( 1.0 ), smoothstep( 0.7 - fw.x, 0.7 + fw.x, coord.x ) );\n\t#endif\n}";

    var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\treflectedLight.indirectDiffuse += lightMapIrradiance;\n#endif";

    var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";

    var lights_lambert_fragment = "LambertMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularStrength = specularStrength;";

    var lights_lambert_pars_fragment = "varying vec3 vViewPosition;\nstruct LambertMaterial {\n\tvec3 diffuseColor;\n\tfloat specularStrength;\n};\nvoid RE_Direct_Lambert( const in IncidentLight directLight, const in GeometricContext geometry, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Lambert( const in vec3 irradiance, const in GeometricContext geometry, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Lambert\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Lambert\n#define Material_LightProbeLOD( material )\t(0)";

    var lights_pars_begin = "uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) {\n\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\treturn irradiance;\n}\nfloat getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\t#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tif ( cutoffDistance > 0.0 ) {\n\t\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\t}\n\t\treturn distanceFalloff;\n\t#else\n\t\tif ( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\t\treturn pow( saturate( - lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t\t}\n\t\treturn 1.0;\n\t#endif\n}\nfloat getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) {\n\treturn smoothstep( coneCosine, penumbraCosine, angleCosine );\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalLightInfo( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tlight.color = directionalLight.color;\n\t\tlight.direction = directionalLight.direction;\n\t\tlight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointLightInfo( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tlight.color = pointLight.color;\n\t\tlight.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay );\n\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotLightInfo( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat angleCos = dot( light.direction, spotLight.direction );\n\t\tfloat spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\tif ( spotAttenuation > 0.0 ) {\n\t\t\tfloat lightDistance = length( lVector );\n\t\t\tlight.color = spotLight.color * spotAttenuation;\n\t\t\tlight.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t\t} else {\n\t\t\tlight.color = vec3( 0.0 );\n\t\t\tlight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) {\n\t\tfloat dotNL = dot( normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\treturn irradiance;\n\t}\n#endif";

    var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP )\n\tvec3 getIBLIrradiance( const in vec3 normal ) {\n\t\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\tvec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) {\n\t\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 reflectVec = reflect( - viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t\treturn envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n#endif";

    var lights_toon_fragment = "ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;";

    var lights_toon_pars_fragment = "varying vec3 vViewPosition;\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)";

    var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";

    var lights_phong_pars_fragment = "varying vec3 vViewPosition;\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_BlinnPhong( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)";

    var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness;\nmaterial.roughness = min( material.roughness, 1.0 );\n#ifdef IOR\n\tmaterial.ior = ior;\n\t#ifdef SPECULAR\n\t\tfloat specularIntensityFactor = specularIntensity;\n\t\tvec3 specularColorFactor = specularColor;\n\t\t#ifdef USE_SPECULARINTENSITYMAP\n\t\t\tspecularIntensityFactor *= texture2D( specularIntensityMap, vUv ).a;\n\t\t#endif\n\t\t#ifdef USE_SPECULARCOLORMAP\n\t\t\tspecularColorFactor *= texture2D( specularColorMap, vUv ).rgb;\n\t\t#endif\n\t\tmaterial.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor );\n\t#else\n\t\tfloat specularIntensityFactor = 1.0;\n\t\tvec3 specularColorFactor = vec3( 1.0 );\n\t\tmaterial.specularF90 = 1.0;\n\t#endif\n\tmaterial.specularColor = mix( min( pow2( ( material.ior - 1.0 ) / ( material.ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.specularF90 = 1.0;\n#endif\n#ifdef USE_CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\tmaterial.clearcoatF0 = vec3( 0.04 );\n\tmaterial.clearcoatF90 = 1.0;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_IRIDESCENCE\n\tmaterial.iridescence = iridescence;\n\tmaterial.iridescenceIOR = iridescenceIOR;\n\t#ifdef USE_IRIDESCENCEMAP\n\t\tmaterial.iridescence *= texture2D( iridescenceMap, vUv ).r;\n\t#endif\n\t#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\t\tmaterial.iridescenceThickness = (iridescenceThicknessMaximum - iridescenceThicknessMinimum) * texture2D( iridescenceThicknessMap, vUv ).g + iridescenceThicknessMinimum;\n\t#else\n\t\tmaterial.iridescenceThickness = iridescenceThicknessMaximum;\n\t#endif\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheenColor;\n\t#ifdef USE_SHEENCOLORMAP\n\t\tmaterial.sheenColor *= texture2D( sheenColorMap, vUv ).rgb;\n\t#endif\n\tmaterial.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );\n\t#ifdef USE_SHEENROUGHNESSMAP\n\t\tmaterial.sheenRoughness *= texture2D( sheenRoughnessMap, vUv ).a;\n\t#endif\n#endif";

    var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat roughness;\n\tvec3 specularColor;\n\tfloat specularF90;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat clearcoat;\n\t\tfloat clearcoatRoughness;\n\t\tvec3 clearcoatF0;\n\t\tfloat clearcoatF90;\n\t#endif\n\t#ifdef USE_IRIDESCENCE\n\t\tfloat iridescence;\n\t\tfloat iridescenceIOR;\n\t\tfloat iridescenceThickness;\n\t\tvec3 iridescenceFresnel;\n\t\tvec3 iridescenceF0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tvec3 sheenColor;\n\t\tfloat sheenRoughness;\n\t#endif\n\t#ifdef IOR\n\t\tfloat ior;\n\t#endif\n\t#ifdef USE_TRANSMISSION\n\t\tfloat transmission;\n\t\tfloat transmissionAlpha;\n\t\tfloat thickness;\n\t\tfloat attenuationDistance;\n\t\tvec3 attenuationColor;\n\t#endif\n};\nvec3 clearcoatSpecular = vec3( 0.0 );\nvec3 sheenSpecular = vec3( 0.0 );\nfloat IBLSheenBRDF( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat r2 = roughness * roughness;\n\tfloat a = roughness < 0.25 ? -339.2 * r2 + 161.4 * roughness - 25.9 : -8.48 * r2 + 14.3 * roughness - 9.95;\n\tfloat b = roughness < 0.25 ? 44.0 * r2 - 23.7 * roughness + 3.26 : 1.97 * r2 - 3.27 * roughness + 0.72;\n\tfloat DG = exp( a * dotNV + b ) + ( roughness < 0.25 ? 0.0 : 0.1 * ( roughness - 0.25 ) );\n\treturn saturate( DG * RECIPROCAL_PI );\n}\nvec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw;\n\treturn fab;\n}\nvec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\treturn specularColor * fab.x + specularF90 * fab.y;\n}\n#ifdef USE_IRIDESCENCE\nvoid computeMultiscatteringIridescence( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float iridescence, const in vec3 iridescenceF0, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#else\nvoid computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#endif\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\t#ifdef USE_IRIDESCENCE\n\t\tvec3 Fr = mix( specularColor, iridescenceF0, iridescence );\n\t#else\n\t\tvec3 Fr = specularColor;\n\t#endif\n\tvec3 FssEss = Fr * fab.x + specularF90 * fab.y;\n\tfloat Ess = fab.x + fab.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = Fr + ( 1.0 - Fr ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.roughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNLcc = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = dotNLcc * directLight.color;\n\t\tclearcoatSpecular += ccIrradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.clearcoatNormal, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * BRDF_Sheen( directLight.direction, geometry.viewDir, geometry.normal, material.sheenColor, material.sheenRoughness );\n\t#endif\n\t#ifdef USE_IRIDESCENCE\n\t\treflectedLight.directSpecular += irradiance * BRDF_GGX_Iridescence( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularF90, material.iridescence, material.iridescenceFresnel, material.roughness );\n\t#else\n\t\treflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularF90, material.roughness );\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatSpecular += clearcoatRadiance * EnvironmentBRDF( geometry.clearcoatNormal, geometry.viewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * material.sheenColor * IBLSheenBRDF( geometry.normal, geometry.viewDir, material.sheenRoughness );\n\t#endif\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\t#ifdef USE_IRIDESCENCE\n\t\tcomputeMultiscatteringIridescence( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.iridescence, material.iridescenceFresnel, material.roughness, singleScattering, multiScattering );\n\t#else\n\t\tcomputeMultiscattering( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering );\n\t#endif\n\tvec3 totalScattering = singleScattering + multiScattering;\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - max( max( totalScattering.r, totalScattering.g ), totalScattering.b ) );\n\treflectedLight.indirectSpecular += radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";

    var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef USE_CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\n#ifdef USE_IRIDESCENCE\n\tfloat dotNVi = saturate( dot( normal, geometry.viewDir ) );\n\tif ( material.iridescenceThickness == 0.0 ) {\n\t\tmaterial.iridescence = 0.0;\n\t} else {\n\t\tmaterial.iridescence = saturate( material.iridescence );\n\t}\n\tif ( material.iridescence > 0.0 ) {\n\t\tmaterial.iridescenceFresnel = evalIridescence( 1.0, material.iridescenceIOR, dotNVi, material.iridescenceThickness, material.specularColor );\n\t\tmaterial.iridescenceF0 = Schlick_to_F0( material.iridescenceFresnel, 1.0, dotNVi );\n\t}\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointLightInfo( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\tvec4 spotColor;\n\tvec3 spotLightCoord;\n\tbool inSpotLightMap;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotLightInfo( spotLight, geometry, directLight );\n\t\t#if ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n\t\t#define SPOT_LIGHT_MAP_INDEX UNROLLED_LOOP_INDEX\n\t\t#elif ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\t#define SPOT_LIGHT_MAP_INDEX NUM_SPOT_LIGHT_MAPS\n\t\t#else\n\t\t#define SPOT_LIGHT_MAP_INDEX ( UNROLLED_LOOP_INDEX - NUM_SPOT_LIGHT_SHADOWS + NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n\t\t#endif\n\t\t#if ( SPOT_LIGHT_MAP_INDEX < NUM_SPOT_LIGHT_MAPS )\n\t\t\tspotLightCoord = vSpotLightCoord[ i ].xyz / vSpotLightCoord[ i ].w;\n\t\t\tinSpotLightMap = all( lessThan( abs( spotLightCoord * 2. - 1. ), vec3( 1.0 ) ) );\n\t\t\tspotColor = texture2D( spotLightMap[ SPOT_LIGHT_MAP_INDEX ], spotLightCoord.xy );\n\t\t\tdirectLight.color = inSpotLightMap ? directLight.color * spotColor.rgb : directLight.color;\n\t\t#endif\n\t\t#undef SPOT_LIGHT_MAP_INDEX\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalLightInfo( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry.normal );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif";

    var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getIBLIrradiance( geometry.normal );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getIBLRadiance( geometry.viewDir, geometry.normal, material.roughness );\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatRadiance += getIBLRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness );\n\t#endif\n#endif";

    var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif";

    var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";

    var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif";

    var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif";

    var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif";

    var map_fragment = "#ifdef USE_MAP\n\tvec4 sampledDiffuseColor = texture2D( map, vUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\tsampledDiffuseColor = vec4( mix( pow( sampledDiffuseColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), sampledDiffuseColor.rgb * 0.0773993808, vec3( lessThanEqual( sampledDiffuseColor.rgb, vec3( 0.04045 ) ) ) ), sampledDiffuseColor.w );\n\t#endif\n\tdiffuseColor *= sampledDiffuseColor;\n#endif";

    var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif";

    var map_particle_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tdiffuseColor *= texture2D( map, uv );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif";

    var map_particle_pars_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";

    var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif";

    var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";

    var morphcolor_vertex = "#if defined( USE_MORPHCOLORS ) && defined( MORPHTARGETS_TEXTURE )\n\tvColor *= morphTargetBaseInfluence;\n\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t#if defined( USE_COLOR_ALPHA )\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ) * morphTargetInfluences[ i ];\n\t\t#elif defined( USE_COLOR )\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ).rgb * morphTargetInfluences[ i ];\n\t\t#endif\n\t}\n#endif";

    var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) objectNormal += getMorph( gl_VertexID, i, 1 ).xyz * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\t\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\t\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\t\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n\t#endif\n#endif";

    var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tuniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n\t\tuniform sampler2DArray morphTargetsTexture;\n\t\tuniform ivec2 morphTargetsTextureSize;\n\t\tvec4 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset ) {\n\t\t\tint texelIndex = vertexIndex * MORPHTARGETS_TEXTURE_STRIDE + offset;\n\t\t\tint y = texelIndex / morphTargetsTextureSize.x;\n\t\t\tint x = texelIndex - y * morphTargetsTextureSize.x;\n\t\t\tivec3 morphUV = ivec3( x, y, morphTargetIndex );\n\t\t\treturn texelFetch( morphTargetsTexture, morphUV, 0 );\n\t\t}\n\t#else\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\tuniform float morphTargetInfluences[ 8 ];\n\t\t#else\n\t\t\tuniform float morphTargetInfluences[ 4 ];\n\t\t#endif\n\t#endif\n#endif";

    var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0 ).xyz * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\t\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\t\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\t\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t\t#endif\n\t#endif\n#endif";

    var normal_fragment_begin = "float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = dFdx( vViewPosition );\n\tvec3 fdy = dFdy( vViewPosition );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;";

    var normal_fragment_maps = "#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( - vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif";

    var normal_pars_fragment = "#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif";

    var normal_pars_vertex = "#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif";

    var normal_vertex = "#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif";

    var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = dFdx( eye_pos.xyz );\n\t\tvec3 q1 = dFdy( eye_pos.xyz );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif";

    var clearcoat_normal_fragment_begin = "#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif";

    var clearcoat_normal_fragment_maps = "#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif";

    var clearcoat_pars_fragment = "#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif";

    var iridescence_pars_fragment = "#ifdef USE_IRIDESCENCEMAP\n\tuniform sampler2D iridescenceMap;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n\tuniform sampler2D iridescenceThicknessMap;\n#endif";

    var output_fragment = "#ifdef OPAQUE\ndiffuseColor.a = 1.0;\n#endif\n#ifdef USE_TRANSMISSION\ndiffuseColor.a *= material.transmissionAlpha + 0.1;\n#endif\ngl_FragColor = vec4( outgoingLight, diffuseColor.a );";

    var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) );\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w );\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}";

    var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif";

    var project_vertex = "vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;";

    var dithering_fragment = "#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";

    var dithering_pars_fragment = "#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif";

    var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif";

    var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";

    var shadowmap_pars_fragment = "#if NUM_SPOT_LIGHT_COORDS > 0\n  varying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#if NUM_SPOT_LIGHT_MAPS > 0\n  uniform sampler2D spotLightMap[ NUM_SPOT_LIGHT_MAPS ];\n#endif\n#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif";

    var shadowmap_pars_vertex = "#if NUM_SPOT_LIGHT_COORDS > 0\n  uniform mat4 spotLightMatrix[ NUM_SPOT_LIGHT_COORDS ];\n  varying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif";

    var shadowmap_vertex = "#if defined( USE_SHADOWMAP ) || ( NUM_SPOT_LIGHT_COORDS > 0 )\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_COORDS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_COORDS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_COORDS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition;\n\t\t#if ( defined( USE_SHADOWMAP ) && UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\t\tshadowWorldPosition.xyz += shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias;\n\t\t#endif\n\t\tvSpotLightCoord[ i ] = spotLightMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif";

    var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}";

    var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";

    var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\tuniform highp sampler2D boneTexture;\n\tuniform int boneTextureSize;\n\tmat4 getBoneMatrix( const in float i ) {\n\t\tfloat j = i * 4.0;\n\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\ty = dy * ( y + 0.5 );\n\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\treturn bone;\n\t}\n#endif";

    var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";

    var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif";

    var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";

    var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";

    var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";

    var tonemapping_pars_fragment = "#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }";

    var transmission_fragment = "#ifdef USE_TRANSMISSION\n\tmaterial.transmission = transmission;\n\tmaterial.transmissionAlpha = 1.0;\n\tmaterial.thickness = thickness;\n\tmaterial.attenuationDistance = attenuationDistance;\n\tmaterial.attenuationColor = attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tmaterial.transmission *= texture2D( transmissionMap, vUv ).r;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tmaterial.thickness *= texture2D( thicknessMap, vUv ).g;\n\t#endif\n\tvec3 pos = vWorldPosition;\n\tvec3 v = normalize( cameraPosition - pos );\n\tvec3 n = inverseTransformDirection( normal, viewMatrix );\n\tvec4 transmission = getIBLVolumeRefraction(\n\t\tn, v, material.roughness, material.diffuseColor, material.specularColor, material.specularF90,\n\t\tpos, modelMatrix, viewMatrix, projectionMatrix, material.ior, material.thickness,\n\t\tmaterial.attenuationColor, material.attenuationDistance );\n\tmaterial.transmissionAlpha = mix( material.transmissionAlpha, transmission.a, material.transmission );\n\ttotalDiffuse = mix( totalDiffuse, transmission.rgb, material.transmission );\n#endif";

    var transmission_pars_fragment = "#ifdef USE_TRANSMISSION\n\tuniform float transmission;\n\tuniform float thickness;\n\tuniform float attenuationDistance;\n\tuniform vec3 attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tuniform sampler2D transmissionMap;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tuniform sampler2D thicknessMap;\n\t#endif\n\tuniform vec2 transmissionSamplerSize;\n\tuniform sampler2D transmissionSamplerMap;\n\tuniform mat4 modelMatrix;\n\tuniform mat4 projectionMatrix;\n\tvarying vec3 vWorldPosition;\n\tvec3 getVolumeTransmissionRay( const in vec3 n, const in vec3 v, const in float thickness, const in float ior, const in mat4 modelMatrix ) {\n\t\tvec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior );\n\t\tvec3 modelScale;\n\t\tmodelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) );\n\t\tmodelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) );\n\t\tmodelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) );\n\t\treturn normalize( refractionVector ) * thickness * modelScale;\n\t}\n\tfloat applyIorToRoughness( const in float roughness, const in float ior ) {\n\t\treturn roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 );\n\t}\n\tvec4 getTransmissionSample( const in vec2 fragCoord, const in float roughness, const in float ior ) {\n\t\tfloat framebufferLod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior );\n\t\t#ifdef texture2DLodEXT\n\t\t\treturn texture2DLodEXT( transmissionSamplerMap, fragCoord.xy, framebufferLod );\n\t\t#else\n\t\t\treturn texture2D( transmissionSamplerMap, fragCoord.xy, framebufferLod );\n\t\t#endif\n\t}\n\tvec3 applyVolumeAttenuation( const in vec3 radiance, const in float transmissionDistance, const in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tif ( isinf( attenuationDistance ) ) {\n\t\t\treturn radiance;\n\t\t} else {\n\t\t\tvec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance;\n\t\t\tvec3 transmittance = exp( - attenuationCoefficient * transmissionDistance );\t\t\treturn transmittance * radiance;\n\t\t}\n\t}\n\tvec4 getIBLVolumeRefraction( const in vec3 n, const in vec3 v, const in float roughness, const in vec3 diffuseColor,\n\t\tconst in vec3 specularColor, const in float specularF90, const in vec3 position, const in mat4 modelMatrix,\n\t\tconst in mat4 viewMatrix, const in mat4 projMatrix, const in float ior, const in float thickness,\n\t\tconst in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tvec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix );\n\t\tvec3 refractedRayExit = position + transmissionRay;\n\t\tvec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n\t\tvec2 refractionCoords = ndcPos.xy / ndcPos.w;\n\t\trefractionCoords += 1.0;\n\t\trefractionCoords /= 2.0;\n\t\tvec4 transmittedLight = getTransmissionSample( refractionCoords, roughness, ior );\n\t\tvec3 attenuatedColor = applyVolumeAttenuation( transmittedLight.rgb, length( transmissionRay ), attenuationColor, attenuationDistance );\n\t\tvec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness );\n\t\treturn vec4( ( 1.0 - F ) * attenuatedColor * diffuseColor, transmittedLight.a );\n\t}\n#endif";

    var uv_pars_fragment = "#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif";

    var uv_pars_vertex = "#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif";

    var uv_vertex = "#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";

    var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";

    var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif";

    var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif";

    var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP ) || defined ( USE_TRANSMISSION ) || NUM_SPOT_LIGHT_COORDS > 0\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif";

    const vertex$g = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}";

    const fragment$g = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tgl_FragColor = texture2D( t2D, vUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\tgl_FragColor = vec4( mix( pow( gl_FragColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), gl_FragColor.rgb * 0.0773993808, vec3( lessThanEqual( gl_FragColor.rgb, vec3( 0.04045 ) ) ) ), gl_FragColor.w );\n\t#endif\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

    const vertex$f = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}";

    const fragment$f = "#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

    const vertex$e = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}";

    const fragment$e = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}";

    const vertex$d = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}";

    const fragment$d = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}";

    const vertex$c = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}";

    const fragment$c = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

    const vertex$b = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";

    const fragment$b = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";

    const vertex$a = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#if defined ( USE_ENVMAP ) || defined ( USE_SKINNING )\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinbase_vertex>\n\t\t#include <skinnormal_vertex>\n\t\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}";

    const fragment$a = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexel.rgb * lightMapIntensity * RECIPROCAL_PI;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

    const vertex$9 = "#define LAMBERT\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";

    const fragment$9 = "#define LAMBERT\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_lambert_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_lambert_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

    const vertex$8 = "#define MATCAP\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}";

    const fragment$8 = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t#else\n\t\tvec4 matcapColor = vec4( vec3( mix( 0.2, 0.8, uv.y ) ), 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

    const vertex$7 = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}";

    const fragment$7 = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n\t#ifdef OPAQUE\n\t\tgl_FragColor.a = 1.0;\n\t#endif\n}";

    const vertex$6 = "#define PHONG\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";

    const fragment$6 = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

    const vertex$5 = "#define STANDARD\nvarying vec3 vViewPosition;\n#ifdef USE_TRANSMISSION\n\tvarying vec3 vWorldPosition;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n#ifdef USE_TRANSMISSION\n\tvWorldPosition = worldPosition.xyz;\n#endif\n}";

    const fragment$5 = "#define STANDARD\n#ifdef PHYSICAL\n\t#define IOR\n\t#define SPECULAR\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef IOR\n\tuniform float ior;\n#endif\n#ifdef SPECULAR\n\tuniform float specularIntensity;\n\tuniform vec3 specularColor;\n\t#ifdef USE_SPECULARINTENSITYMAP\n\t\tuniform sampler2D specularIntensityMap;\n\t#endif\n\t#ifdef USE_SPECULARCOLORMAP\n\t\tuniform sampler2D specularColorMap;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_IRIDESCENCE\n\tuniform float iridescence;\n\tuniform float iridescenceIOR;\n\tuniform float iridescenceThicknessMinimum;\n\tuniform float iridescenceThicknessMaximum;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheenColor;\n\tuniform float sheenRoughness;\n\t#ifdef USE_SHEENCOLORMAP\n\t\tuniform sampler2D sheenColorMap;\n\t#endif\n\t#ifdef USE_SHEENROUGHNESSMAP\n\t\tuniform sampler2D sheenRoughnessMap;\n\t#endif\n#endif\nvarying vec3 vViewPosition;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <iridescence_fragment>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_physical_pars_fragment>\n#include <transmission_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <iridescence_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse;\n\tvec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular;\n\t#include <transmission_fragment>\n\tvec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance;\n\t#ifdef USE_SHEEN\n\t\tfloat sheenEnergyComp = 1.0 - 0.157 * max3( material.sheenColor );\n\t\toutgoingLight = outgoingLight * sheenEnergyComp + sheenSpecular;\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNVcc = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\tvec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc );\n\t\toutgoingLight = outgoingLight * ( 1.0 - material.clearcoat * Fcc ) + clearcoatSpecular * material.clearcoat;\n\t#endif\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

    const vertex$4 = "#define TOON\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";

    const fragment$4 = "#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

    const vertex$3 = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <morphcolor_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}";

    const fragment$3 = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";

    const vertex$2 = "#include <common>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";

    const fragment$2 = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";

    const vertex$1 = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";

    const fragment$1 = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";

    const ShaderChunk = {
    	alphamap_fragment: alphamap_fragment,
    	alphamap_pars_fragment: alphamap_pars_fragment,
    	alphatest_fragment: alphatest_fragment,
    	alphatest_pars_fragment: alphatest_pars_fragment,
    	aomap_fragment: aomap_fragment,
    	aomap_pars_fragment: aomap_pars_fragment,
    	begin_vertex: begin_vertex,
    	beginnormal_vertex: beginnormal_vertex,
    	bsdfs: bsdfs,
    	iridescence_fragment: iridescence_fragment,
    	bumpmap_pars_fragment: bumpmap_pars_fragment,
    	clipping_planes_fragment: clipping_planes_fragment,
    	clipping_planes_pars_fragment: clipping_planes_pars_fragment,
    	clipping_planes_pars_vertex: clipping_planes_pars_vertex,
    	clipping_planes_vertex: clipping_planes_vertex,
    	color_fragment: color_fragment,
    	color_pars_fragment: color_pars_fragment,
    	color_pars_vertex: color_pars_vertex,
    	color_vertex: color_vertex,
    	common: common,
    	cube_uv_reflection_fragment: cube_uv_reflection_fragment,
    	defaultnormal_vertex: defaultnormal_vertex,
    	displacementmap_pars_vertex: displacementmap_pars_vertex,
    	displacementmap_vertex: displacementmap_vertex,
    	emissivemap_fragment: emissivemap_fragment,
    	emissivemap_pars_fragment: emissivemap_pars_fragment,
    	encodings_fragment: encodings_fragment,
    	encodings_pars_fragment: encodings_pars_fragment,
    	envmap_fragment: envmap_fragment,
    	envmap_common_pars_fragment: envmap_common_pars_fragment,
    	envmap_pars_fragment: envmap_pars_fragment,
    	envmap_pars_vertex: envmap_pars_vertex,
    	envmap_physical_pars_fragment: envmap_physical_pars_fragment,
    	envmap_vertex: envmap_vertex,
    	fog_vertex: fog_vertex,
    	fog_pars_vertex: fog_pars_vertex,
    	fog_fragment: fog_fragment,
    	fog_pars_fragment: fog_pars_fragment,
    	gradientmap_pars_fragment: gradientmap_pars_fragment,
    	lightmap_fragment: lightmap_fragment,
    	lightmap_pars_fragment: lightmap_pars_fragment,
    	lights_lambert_fragment: lights_lambert_fragment,
    	lights_lambert_pars_fragment: lights_lambert_pars_fragment,
    	lights_pars_begin: lights_pars_begin,
    	lights_toon_fragment: lights_toon_fragment,
    	lights_toon_pars_fragment: lights_toon_pars_fragment,
    	lights_phong_fragment: lights_phong_fragment,
    	lights_phong_pars_fragment: lights_phong_pars_fragment,
    	lights_physical_fragment: lights_physical_fragment,
    	lights_physical_pars_fragment: lights_physical_pars_fragment,
    	lights_fragment_begin: lights_fragment_begin,
    	lights_fragment_maps: lights_fragment_maps,
    	lights_fragment_end: lights_fragment_end,
    	logdepthbuf_fragment: logdepthbuf_fragment,
    	logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
    	logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
    	logdepthbuf_vertex: logdepthbuf_vertex,
    	map_fragment: map_fragment,
    	map_pars_fragment: map_pars_fragment,
    	map_particle_fragment: map_particle_fragment,
    	map_particle_pars_fragment: map_particle_pars_fragment,
    	metalnessmap_fragment: metalnessmap_fragment,
    	metalnessmap_pars_fragment: metalnessmap_pars_fragment,
    	morphcolor_vertex: morphcolor_vertex,
    	morphnormal_vertex: morphnormal_vertex,
    	morphtarget_pars_vertex: morphtarget_pars_vertex,
    	morphtarget_vertex: morphtarget_vertex,
    	normal_fragment_begin: normal_fragment_begin,
    	normal_fragment_maps: normal_fragment_maps,
    	normal_pars_fragment: normal_pars_fragment,
    	normal_pars_vertex: normal_pars_vertex,
    	normal_vertex: normal_vertex,
    	normalmap_pars_fragment: normalmap_pars_fragment,
    	clearcoat_normal_fragment_begin: clearcoat_normal_fragment_begin,
    	clearcoat_normal_fragment_maps: clearcoat_normal_fragment_maps,
    	clearcoat_pars_fragment: clearcoat_pars_fragment,
    	iridescence_pars_fragment: iridescence_pars_fragment,
    	output_fragment: output_fragment,
    	packing: packing,
    	premultiplied_alpha_fragment: premultiplied_alpha_fragment,
    	project_vertex: project_vertex,
    	dithering_fragment: dithering_fragment,
    	dithering_pars_fragment: dithering_pars_fragment,
    	roughnessmap_fragment: roughnessmap_fragment,
    	roughnessmap_pars_fragment: roughnessmap_pars_fragment,
    	shadowmap_pars_fragment: shadowmap_pars_fragment,
    	shadowmap_pars_vertex: shadowmap_pars_vertex,
    	shadowmap_vertex: shadowmap_vertex,
    	shadowmask_pars_fragment: shadowmask_pars_fragment,
    	skinbase_vertex: skinbase_vertex,
    	skinning_pars_vertex: skinning_pars_vertex,
    	skinning_vertex: skinning_vertex,
    	skinnormal_vertex: skinnormal_vertex,
    	specularmap_fragment: specularmap_fragment,
    	specularmap_pars_fragment: specularmap_pars_fragment,
    	tonemapping_fragment: tonemapping_fragment,
    	tonemapping_pars_fragment: tonemapping_pars_fragment,
    	transmission_fragment: transmission_fragment,
    	transmission_pars_fragment: transmission_pars_fragment,
    	uv_pars_fragment: uv_pars_fragment,
    	uv_pars_vertex: uv_pars_vertex,
    	uv_vertex: uv_vertex,
    	uv2_pars_fragment: uv2_pars_fragment,
    	uv2_pars_vertex: uv2_pars_vertex,
    	uv2_vertex: uv2_vertex,
    	worldpos_vertex: worldpos_vertex,

    	background_vert: vertex$g,
    	background_frag: fragment$g,
    	cube_vert: vertex$f,
    	cube_frag: fragment$f,
    	depth_vert: vertex$e,
    	depth_frag: fragment$e,
    	distanceRGBA_vert: vertex$d,
    	distanceRGBA_frag: fragment$d,
    	equirect_vert: vertex$c,
    	equirect_frag: fragment$c,
    	linedashed_vert: vertex$b,
    	linedashed_frag: fragment$b,
    	meshbasic_vert: vertex$a,
    	meshbasic_frag: fragment$a,
    	meshlambert_vert: vertex$9,
    	meshlambert_frag: fragment$9,
    	meshmatcap_vert: vertex$8,
    	meshmatcap_frag: fragment$8,
    	meshnormal_vert: vertex$7,
    	meshnormal_frag: fragment$7,
    	meshphong_vert: vertex$6,
    	meshphong_frag: fragment$6,
    	meshphysical_vert: vertex$5,
    	meshphysical_frag: fragment$5,
    	meshtoon_vert: vertex$4,
    	meshtoon_frag: fragment$4,
    	points_vert: vertex$3,
    	points_frag: fragment$3,
    	shadow_vert: vertex$2,
    	shadow_frag: fragment$2,
    	sprite_vert: vertex$1,
    	sprite_frag: fragment$1
    };

    /**
     * Uniforms library for shared webgl shaders
     */

    const UniformsLib = {

    	common: {

    		diffuse: { value: /*@__PURE__*/ new Color( 0xffffff ) },
    		opacity: { value: 1.0 },

    		map: { value: null },
    		uvTransform: { value: /*@__PURE__*/ new Matrix3() },
    		uv2Transform: { value: /*@__PURE__*/ new Matrix3() },

    		alphaMap: { value: null },
    		alphaTest: { value: 0 }

    	},

    	specularmap: {

    		specularMap: { value: null },

    	},

    	envmap: {

    		envMap: { value: null },
    		flipEnvMap: { value: - 1 },
    		reflectivity: { value: 1.0 }, // basic, lambert, phong
    		ior: { value: 1.5 }, // physical
    		refractionRatio: { value: 0.98 } // basic, lambert, phong

    	},

    	aomap: {

    		aoMap: { value: null },
    		aoMapIntensity: { value: 1 }

    	},

    	lightmap: {

    		lightMap: { value: null },
    		lightMapIntensity: { value: 1 }

    	},

    	emissivemap: {

    		emissiveMap: { value: null }

    	},

    	bumpmap: {

    		bumpMap: { value: null },
    		bumpScale: { value: 1 }

    	},

    	normalmap: {

    		normalMap: { value: null },
    		normalScale: { value: /*@__PURE__*/ new Vector2( 1, 1 ) }

    	},

    	displacementmap: {

    		displacementMap: { value: null },
    		displacementScale: { value: 1 },
    		displacementBias: { value: 0 }

    	},

    	roughnessmap: {

    		roughnessMap: { value: null }

    	},

    	metalnessmap: {

    		metalnessMap: { value: null }

    	},

    	gradientmap: {

    		gradientMap: { value: null }

    	},

    	fog: {

    		fogDensity: { value: 0.00025 },
    		fogNear: { value: 1 },
    		fogFar: { value: 2000 },
    		fogColor: { value: /*@__PURE__*/ new Color( 0xffffff ) }

    	},

    	lights: {

    		ambientLightColor: { value: [] },

    		lightProbe: { value: [] },

    		directionalLights: { value: [], properties: {
    			direction: {},
    			color: {}
    		} },

    		directionalLightShadows: { value: [], properties: {
    			shadowBias: {},
    			shadowNormalBias: {},
    			shadowRadius: {},
    			shadowMapSize: {}
    		} },

    		directionalShadowMap: { value: [] },
    		directionalShadowMatrix: { value: [] },

    		spotLights: { value: [], properties: {
    			color: {},
    			position: {},
    			direction: {},
    			distance: {},
    			coneCos: {},
    			penumbraCos: {},
    			decay: {}
    		} },

    		spotLightShadows: { value: [], properties: {
    			shadowBias: {},
    			shadowNormalBias: {},
    			shadowRadius: {},
    			shadowMapSize: {}
    		} },

    		spotLightMap: { value: [] },
    		spotShadowMap: { value: [] },
    		spotLightMatrix: { value: [] },

    		pointLights: { value: [], properties: {
    			color: {},
    			position: {},
    			decay: {},
    			distance: {}
    		} },

    		pointLightShadows: { value: [], properties: {
    			shadowBias: {},
    			shadowNormalBias: {},
    			shadowRadius: {},
    			shadowMapSize: {},
    			shadowCameraNear: {},
    			shadowCameraFar: {}
    		} },

    		pointShadowMap: { value: [] },
    		pointShadowMatrix: { value: [] },

    		hemisphereLights: { value: [], properties: {
    			direction: {},
    			skyColor: {},
    			groundColor: {}
    		} },

    		// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
    		rectAreaLights: { value: [], properties: {
    			color: {},
    			position: {},
    			width: {},
    			height: {}
    		} },

    		ltc_1: { value: null },
    		ltc_2: { value: null }

    	},

    	points: {

    		diffuse: { value: /*@__PURE__*/ new Color( 0xffffff ) },
    		opacity: { value: 1.0 },
    		size: { value: 1.0 },
    		scale: { value: 1.0 },
    		map: { value: null },
    		alphaMap: { value: null },
    		alphaTest: { value: 0 },
    		uvTransform: { value: /*@__PURE__*/ new Matrix3() }

    	},

    	sprite: {

    		diffuse: { value: /*@__PURE__*/ new Color( 0xffffff ) },
    		opacity: { value: 1.0 },
    		center: { value: /*@__PURE__*/ new Vector2( 0.5, 0.5 ) },
    		rotation: { value: 0.0 },
    		map: { value: null },
    		alphaMap: { value: null },
    		alphaTest: { value: 0 },
    		uvTransform: { value: /*@__PURE__*/ new Matrix3() }

    	}

    };

    const ShaderLib = {

    	basic: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.specularmap,
    			UniformsLib.envmap,
    			UniformsLib.aomap,
    			UniformsLib.lightmap,
    			UniformsLib.fog
    		] ),

    		vertexShader: ShaderChunk.meshbasic_vert,
    		fragmentShader: ShaderChunk.meshbasic_frag

    	},

    	lambert: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.specularmap,
    			UniformsLib.envmap,
    			UniformsLib.aomap,
    			UniformsLib.lightmap,
    			UniformsLib.emissivemap,
    			UniformsLib.bumpmap,
    			UniformsLib.normalmap,
    			UniformsLib.displacementmap,
    			UniformsLib.fog,
    			UniformsLib.lights,
    			{
    				emissive: { value: /*@__PURE__*/ new Color( 0x000000 ) }
    			}
    		] ),

    		vertexShader: ShaderChunk.meshlambert_vert,
    		fragmentShader: ShaderChunk.meshlambert_frag

    	},

    	phong: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.specularmap,
    			UniformsLib.envmap,
    			UniformsLib.aomap,
    			UniformsLib.lightmap,
    			UniformsLib.emissivemap,
    			UniformsLib.bumpmap,
    			UniformsLib.normalmap,
    			UniformsLib.displacementmap,
    			UniformsLib.fog,
    			UniformsLib.lights,
    			{
    				emissive: { value: /*@__PURE__*/ new Color( 0x000000 ) },
    				specular: { value: /*@__PURE__*/ new Color( 0x111111 ) },
    				shininess: { value: 30 }
    			}
    		] ),

    		vertexShader: ShaderChunk.meshphong_vert,
    		fragmentShader: ShaderChunk.meshphong_frag

    	},

    	standard: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.envmap,
    			UniformsLib.aomap,
    			UniformsLib.lightmap,
    			UniformsLib.emissivemap,
    			UniformsLib.bumpmap,
    			UniformsLib.normalmap,
    			UniformsLib.displacementmap,
    			UniformsLib.roughnessmap,
    			UniformsLib.metalnessmap,
    			UniformsLib.fog,
    			UniformsLib.lights,
    			{
    				emissive: { value: /*@__PURE__*/ new Color( 0x000000 ) },
    				roughness: { value: 1.0 },
    				metalness: { value: 0.0 },
    				envMapIntensity: { value: 1 } // temporary
    			}
    		] ),

    		vertexShader: ShaderChunk.meshphysical_vert,
    		fragmentShader: ShaderChunk.meshphysical_frag

    	},

    	toon: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.aomap,
    			UniformsLib.lightmap,
    			UniformsLib.emissivemap,
    			UniformsLib.bumpmap,
    			UniformsLib.normalmap,
    			UniformsLib.displacementmap,
    			UniformsLib.gradientmap,
    			UniformsLib.fog,
    			UniformsLib.lights,
    			{
    				emissive: { value: /*@__PURE__*/ new Color( 0x000000 ) }
    			}
    		] ),

    		vertexShader: ShaderChunk.meshtoon_vert,
    		fragmentShader: ShaderChunk.meshtoon_frag

    	},

    	matcap: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.bumpmap,
    			UniformsLib.normalmap,
    			UniformsLib.displacementmap,
    			UniformsLib.fog,
    			{
    				matcap: { value: null }
    			}
    		] ),

    		vertexShader: ShaderChunk.meshmatcap_vert,
    		fragmentShader: ShaderChunk.meshmatcap_frag

    	},

    	points: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.points,
    			UniformsLib.fog
    		] ),

    		vertexShader: ShaderChunk.points_vert,
    		fragmentShader: ShaderChunk.points_frag

    	},

    	dashed: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.fog,
    			{
    				scale: { value: 1 },
    				dashSize: { value: 1 },
    				totalSize: { value: 2 }
    			}
    		] ),

    		vertexShader: ShaderChunk.linedashed_vert,
    		fragmentShader: ShaderChunk.linedashed_frag

    	},

    	depth: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.displacementmap
    		] ),

    		vertexShader: ShaderChunk.depth_vert,
    		fragmentShader: ShaderChunk.depth_frag

    	},

    	normal: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.bumpmap,
    			UniformsLib.normalmap,
    			UniformsLib.displacementmap,
    			{
    				opacity: { value: 1.0 }
    			}
    		] ),

    		vertexShader: ShaderChunk.meshnormal_vert,
    		fragmentShader: ShaderChunk.meshnormal_frag

    	},

    	sprite: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.sprite,
    			UniformsLib.fog
    		] ),

    		vertexShader: ShaderChunk.sprite_vert,
    		fragmentShader: ShaderChunk.sprite_frag

    	},

    	background: {

    		uniforms: {
    			uvTransform: { value: /*@__PURE__*/ new Matrix3() },
    			t2D: { value: null },
    		},

    		vertexShader: ShaderChunk.background_vert,
    		fragmentShader: ShaderChunk.background_frag

    	},

    	cube: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.envmap,
    			{
    				opacity: { value: 1.0 }
    			}
    		] ),

    		vertexShader: ShaderChunk.cube_vert,
    		fragmentShader: ShaderChunk.cube_frag

    	},

    	equirect: {

    		uniforms: {
    			tEquirect: { value: null },
    		},

    		vertexShader: ShaderChunk.equirect_vert,
    		fragmentShader: ShaderChunk.equirect_frag

    	},

    	distanceRGBA: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.common,
    			UniformsLib.displacementmap,
    			{
    				referencePosition: { value: /*@__PURE__*/ new Vector3() },
    				nearDistance: { value: 1 },
    				farDistance: { value: 1000 }
    			}
    		] ),

    		vertexShader: ShaderChunk.distanceRGBA_vert,
    		fragmentShader: ShaderChunk.distanceRGBA_frag

    	},

    	shadow: {

    		uniforms: /*@__PURE__*/ mergeUniforms( [
    			UniformsLib.lights,
    			UniformsLib.fog,
    			{
    				color: { value: /*@__PURE__*/ new Color( 0x00000 ) },
    				opacity: { value: 1.0 }
    			},
    		] ),

    		vertexShader: ShaderChunk.shadow_vert,
    		fragmentShader: ShaderChunk.shadow_frag

    	}

    };

    ShaderLib.physical = {

    	uniforms: /*@__PURE__*/ mergeUniforms( [
    		ShaderLib.standard.uniforms,
    		{
    			clearcoat: { value: 0 },
    			clearcoatMap: { value: null },
    			clearcoatRoughness: { value: 0 },
    			clearcoatRoughnessMap: { value: null },
    			clearcoatNormalScale: { value: /*@__PURE__*/ new Vector2( 1, 1 ) },
    			clearcoatNormalMap: { value: null },
    			iridescence: { value: 0 },
    			iridescenceMap: { value: null },
    			iridescenceIOR: { value: 1.3 },
    			iridescenceThicknessMinimum: { value: 100 },
    			iridescenceThicknessMaximum: { value: 400 },
    			iridescenceThicknessMap: { value: null },
    			sheen: { value: 0 },
    			sheenColor: { value: /*@__PURE__*/ new Color( 0x000000 ) },
    			sheenColorMap: { value: null },
    			sheenRoughness: { value: 1 },
    			sheenRoughnessMap: { value: null },
    			transmission: { value: 0 },
    			transmissionMap: { value: null },
    			transmissionSamplerSize: { value: /*@__PURE__*/ new Vector2() },
    			transmissionSamplerMap: { value: null },
    			thickness: { value: 0 },
    			thicknessMap: { value: null },
    			attenuationDistance: { value: 0 },
    			attenuationColor: { value: /*@__PURE__*/ new Color( 0x000000 ) },
    			specularIntensity: { value: 1 },
    			specularIntensityMap: { value: null },
    			specularColor: { value: /*@__PURE__*/ new Color( 1, 1, 1 ) },
    			specularColorMap: { value: null },
    		}
    	] ),

    	vertexShader: ShaderChunk.meshphysical_vert,
    	fragmentShader: ShaderChunk.meshphysical_frag

    };

    function WebGLBackground( renderer, cubemaps, state, objects, alpha, premultipliedAlpha ) {

    	const clearColor = new Color( 0x000000 );
    	let clearAlpha = alpha === true ? 0 : 1;

    	let planeMesh;
    	let boxMesh;

    	let currentBackground = null;
    	let currentBackgroundVersion = 0;
    	let currentTonemapping = null;

    	function render( renderList, scene ) {

    		let forceClear = false;
    		let background = scene.isScene === true ? scene.background : null;

    		if ( background && background.isTexture ) {

    			background = cubemaps.get( background );

    		}

    		// Ignore background in AR
    		// TODO: Reconsider this.

    		const xr = renderer.xr;
    		const session = xr.getSession && xr.getSession();

    		if ( session && session.environmentBlendMode === 'additive' ) {

    			background = null;

    		}

    		if ( background === null ) {

    			setClear( clearColor, clearAlpha );

    		} else if ( background && background.isColor ) {

    			setClear( background, 1 );
    			forceClear = true;

    		}

    		if ( renderer.autoClear || forceClear ) {

    			renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );

    		}

    		if ( background && ( background.isCubeTexture || background.mapping === CubeUVReflectionMapping ) ) {

    			if ( boxMesh === undefined ) {

    				boxMesh = new Mesh(
    					new BoxGeometry( 1, 1, 1 ),
    					new ShaderMaterial( {
    						name: 'BackgroundCubeMaterial',
    						uniforms: cloneUniforms( ShaderLib.cube.uniforms ),
    						vertexShader: ShaderLib.cube.vertexShader,
    						fragmentShader: ShaderLib.cube.fragmentShader,
    						side: BackSide,
    						depthTest: false,
    						depthWrite: false,
    						fog: false
    					} )
    				);

    				boxMesh.geometry.deleteAttribute( 'normal' );
    				boxMesh.geometry.deleteAttribute( 'uv' );

    				boxMesh.onBeforeRender = function ( renderer, scene, camera ) {

    					this.matrixWorld.copyPosition( camera.matrixWorld );

    				};

    				// add "envMap" material property so the renderer can evaluate it like for built-in materials
    				Object.defineProperty( boxMesh.material, 'envMap', {

    					get: function () {

    						return this.uniforms.envMap.value;

    					}

    				} );

    				objects.update( boxMesh );

    			}

    			boxMesh.material.uniforms.envMap.value = background;
    			boxMesh.material.uniforms.flipEnvMap.value = ( background.isCubeTexture && background.isRenderTargetTexture === false ) ? - 1 : 1;

    			if ( currentBackground !== background ||
    				currentBackgroundVersion !== background.version ||
    				currentTonemapping !== renderer.toneMapping ) {

    				boxMesh.material.needsUpdate = true;

    				currentBackground = background;
    				currentBackgroundVersion = background.version;
    				currentTonemapping = renderer.toneMapping;

    			}

    			boxMesh.layers.enableAll();

    			// push to the pre-sorted opaque render list
    			renderList.unshift( boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null );

    		} else if ( background && background.isTexture ) {

    			if ( planeMesh === undefined ) {

    				planeMesh = new Mesh(
    					new PlaneGeometry( 2, 2 ),
    					new ShaderMaterial( {
    						name: 'BackgroundMaterial',
    						uniforms: cloneUniforms( ShaderLib.background.uniforms ),
    						vertexShader: ShaderLib.background.vertexShader,
    						fragmentShader: ShaderLib.background.fragmentShader,
    						side: FrontSide,
    						depthTest: false,
    						depthWrite: false,
    						fog: false
    					} )
    				);

    				planeMesh.geometry.deleteAttribute( 'normal' );

    				// add "map" material property so the renderer can evaluate it like for built-in materials
    				Object.defineProperty( planeMesh.material, 'map', {

    					get: function () {

    						return this.uniforms.t2D.value;

    					}

    				} );

    				objects.update( planeMesh );

    			}

    			planeMesh.material.uniforms.t2D.value = background;

    			if ( background.matrixAutoUpdate === true ) {

    				background.updateMatrix();

    			}

    			planeMesh.material.uniforms.uvTransform.value.copy( background.matrix );

    			if ( currentBackground !== background ||
    				currentBackgroundVersion !== background.version ||
    				currentTonemapping !== renderer.toneMapping ) {

    				planeMesh.material.needsUpdate = true;

    				currentBackground = background;
    				currentBackgroundVersion = background.version;
    				currentTonemapping = renderer.toneMapping;

    			}

    			planeMesh.layers.enableAll();

    			// push to the pre-sorted opaque render list
    			renderList.unshift( planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null );

    		}

    	}

    	function setClear( color, alpha ) {

    		state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );

    	}

    	return {

    		getClearColor: function () {

    			return clearColor;

    		},
    		setClearColor: function ( color, alpha = 1 ) {

    			clearColor.set( color );
    			clearAlpha = alpha;
    			setClear( clearColor, clearAlpha );

    		},
    		getClearAlpha: function () {

    			return clearAlpha;

    		},
    		setClearAlpha: function ( alpha ) {

    			clearAlpha = alpha;
    			setClear( clearColor, clearAlpha );

    		},
    		render: render

    	};

    }

    function WebGLBindingStates( gl, extensions, attributes, capabilities ) {

    	const maxVertexAttributes = gl.getParameter( 34921 );

    	const extension = capabilities.isWebGL2 ? null : extensions.get( 'OES_vertex_array_object' );
    	const vaoAvailable = capabilities.isWebGL2 || extension !== null;

    	const bindingStates = {};

    	const defaultState = createBindingState( null );
    	let currentState = defaultState;
    	let forceUpdate = false;

    	function setup( object, material, program, geometry, index ) {

    		let updateBuffers = false;

    		if ( vaoAvailable ) {

    			const state = getBindingState( geometry, program, material );

    			if ( currentState !== state ) {

    				currentState = state;
    				bindVertexArrayObject( currentState.object );

    			}

    			updateBuffers = needsUpdate( object, geometry, program, index );

    			if ( updateBuffers ) saveCache( object, geometry, program, index );

    		} else {

    			const wireframe = ( material.wireframe === true );

    			if ( currentState.geometry !== geometry.id ||
    				currentState.program !== program.id ||
    				currentState.wireframe !== wireframe ) {

    				currentState.geometry = geometry.id;
    				currentState.program = program.id;
    				currentState.wireframe = wireframe;

    				updateBuffers = true;

    			}

    		}

    		if ( index !== null ) {

    			attributes.update( index, 34963 );

    		}

    		if ( updateBuffers || forceUpdate ) {

    			forceUpdate = false;

    			setupVertexAttributes( object, material, program, geometry );

    			if ( index !== null ) {

    				gl.bindBuffer( 34963, attributes.get( index ).buffer );

    			}

    		}

    	}

    	function createVertexArrayObject() {

    		if ( capabilities.isWebGL2 ) return gl.createVertexArray();

    		return extension.createVertexArrayOES();

    	}

    	function bindVertexArrayObject( vao ) {

    		if ( capabilities.isWebGL2 ) return gl.bindVertexArray( vao );

    		return extension.bindVertexArrayOES( vao );

    	}

    	function deleteVertexArrayObject( vao ) {

    		if ( capabilities.isWebGL2 ) return gl.deleteVertexArray( vao );

    		return extension.deleteVertexArrayOES( vao );

    	}

    	function getBindingState( geometry, program, material ) {

    		const wireframe = ( material.wireframe === true );

    		let programMap = bindingStates[ geometry.id ];

    		if ( programMap === undefined ) {

    			programMap = {};
    			bindingStates[ geometry.id ] = programMap;

    		}

    		let stateMap = programMap[ program.id ];

    		if ( stateMap === undefined ) {

    			stateMap = {};
    			programMap[ program.id ] = stateMap;

    		}

    		let state = stateMap[ wireframe ];

    		if ( state === undefined ) {

    			state = createBindingState( createVertexArrayObject() );
    			stateMap[ wireframe ] = state;

    		}

    		return state;

    	}

    	function createBindingState( vao ) {

    		const newAttributes = [];
    		const enabledAttributes = [];
    		const attributeDivisors = [];

    		for ( let i = 0; i < maxVertexAttributes; i ++ ) {

    			newAttributes[ i ] = 0;
    			enabledAttributes[ i ] = 0;
    			attributeDivisors[ i ] = 0;

    		}

    		return {

    			// for backward compatibility on non-VAO support browser
    			geometry: null,
    			program: null,
    			wireframe: false,

    			newAttributes: newAttributes,
    			enabledAttributes: enabledAttributes,
    			attributeDivisors: attributeDivisors,
    			object: vao,
    			attributes: {},
    			index: null

    		};

    	}

    	function needsUpdate( object, geometry, program, index ) {

    		const cachedAttributes = currentState.attributes;
    		const geometryAttributes = geometry.attributes;

    		let attributesNum = 0;

    		const programAttributes = program.getAttributes();

    		for ( const name in programAttributes ) {

    			const programAttribute = programAttributes[ name ];

    			if ( programAttribute.location >= 0 ) {

    				const cachedAttribute = cachedAttributes[ name ];
    				let geometryAttribute = geometryAttributes[ name ];

    				if ( geometryAttribute === undefined ) {

    					if ( name === 'instanceMatrix' && object.instanceMatrix ) geometryAttribute = object.instanceMatrix;
    					if ( name === 'instanceColor' && object.instanceColor ) geometryAttribute = object.instanceColor;

    				}

    				if ( cachedAttribute === undefined ) return true;

    				if ( cachedAttribute.attribute !== geometryAttribute ) return true;

    				if ( geometryAttribute && cachedAttribute.data !== geometryAttribute.data ) return true;

    				attributesNum ++;

    			}

    		}

    		if ( currentState.attributesNum !== attributesNum ) return true;

    		if ( currentState.index !== index ) return true;

    		return false;

    	}

    	function saveCache( object, geometry, program, index ) {

    		const cache = {};
    		const attributes = geometry.attributes;
    		let attributesNum = 0;

    		const programAttributes = program.getAttributes();

    		for ( const name in programAttributes ) {

    			const programAttribute = programAttributes[ name ];

    			if ( programAttribute.location >= 0 ) {

    				let attribute = attributes[ name ];

    				if ( attribute === undefined ) {

    					if ( name === 'instanceMatrix' && object.instanceMatrix ) attribute = object.instanceMatrix;
    					if ( name === 'instanceColor' && object.instanceColor ) attribute = object.instanceColor;

    				}

    				const data = {};
    				data.attribute = attribute;

    				if ( attribute && attribute.data ) {

    					data.data = attribute.data;

    				}

    				cache[ name ] = data;

    				attributesNum ++;

    			}

    		}

    		currentState.attributes = cache;
    		currentState.attributesNum = attributesNum;

    		currentState.index = index;

    	}

    	function initAttributes() {

    		const newAttributes = currentState.newAttributes;

    		for ( let i = 0, il = newAttributes.length; i < il; i ++ ) {

    			newAttributes[ i ] = 0;

    		}

    	}

    	function enableAttribute( attribute ) {

    		enableAttributeAndDivisor( attribute, 0 );

    	}

    	function enableAttributeAndDivisor( attribute, meshPerAttribute ) {

    		const newAttributes = currentState.newAttributes;
    		const enabledAttributes = currentState.enabledAttributes;
    		const attributeDivisors = currentState.attributeDivisors;

    		newAttributes[ attribute ] = 1;

    		if ( enabledAttributes[ attribute ] === 0 ) {

    			gl.enableVertexAttribArray( attribute );
    			enabledAttributes[ attribute ] = 1;

    		}

    		if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {

    			const extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' );

    			extension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute );
    			attributeDivisors[ attribute ] = meshPerAttribute;

    		}

    	}

    	function disableUnusedAttributes() {

    		const newAttributes = currentState.newAttributes;
    		const enabledAttributes = currentState.enabledAttributes;

    		for ( let i = 0, il = enabledAttributes.length; i < il; i ++ ) {

    			if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {

    				gl.disableVertexAttribArray( i );
    				enabledAttributes[ i ] = 0;

    			}

    		}

    	}

    	function vertexAttribPointer( index, size, type, normalized, stride, offset ) {

    		if ( capabilities.isWebGL2 === true && ( type === 5124 || type === 5125 ) ) {

    			gl.vertexAttribIPointer( index, size, type, stride, offset );

    		} else {

    			gl.vertexAttribPointer( index, size, type, normalized, stride, offset );

    		}

    	}

    	function setupVertexAttributes( object, material, program, geometry ) {

    		if ( capabilities.isWebGL2 === false && ( object.isInstancedMesh || geometry.isInstancedBufferGeometry ) ) {

    			if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) return;

    		}

    		initAttributes();

    		const geometryAttributes = geometry.attributes;

    		const programAttributes = program.getAttributes();

    		const materialDefaultAttributeValues = material.defaultAttributeValues;

    		for ( const name in programAttributes ) {

    			const programAttribute = programAttributes[ name ];

    			if ( programAttribute.location >= 0 ) {

    				let geometryAttribute = geometryAttributes[ name ];

    				if ( geometryAttribute === undefined ) {

    					if ( name === 'instanceMatrix' && object.instanceMatrix ) geometryAttribute = object.instanceMatrix;
    					if ( name === 'instanceColor' && object.instanceColor ) geometryAttribute = object.instanceColor;

    				}

    				if ( geometryAttribute !== undefined ) {

    					const normalized = geometryAttribute.normalized;
    					const size = geometryAttribute.itemSize;

    					const attribute = attributes.get( geometryAttribute );

    					// TODO Attribute may not be available on context restore

    					if ( attribute === undefined ) continue;

    					const buffer = attribute.buffer;
    					const type = attribute.type;
    					const bytesPerElement = attribute.bytesPerElement;

    					if ( geometryAttribute.isInterleavedBufferAttribute ) {

    						const data = geometryAttribute.data;
    						const stride = data.stride;
    						const offset = geometryAttribute.offset;

    						if ( data.isInstancedInterleavedBuffer ) {

    							for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

    								enableAttributeAndDivisor( programAttribute.location + i, data.meshPerAttribute );

    							}

    							if ( object.isInstancedMesh !== true && geometry._maxInstanceCount === undefined ) {

    								geometry._maxInstanceCount = data.meshPerAttribute * data.count;

    							}

    						} else {

    							for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

    								enableAttribute( programAttribute.location + i );

    							}

    						}

    						gl.bindBuffer( 34962, buffer );

    						for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

    							vertexAttribPointer(
    								programAttribute.location + i,
    								size / programAttribute.locationSize,
    								type,
    								normalized,
    								stride * bytesPerElement,
    								( offset + ( size / programAttribute.locationSize ) * i ) * bytesPerElement
    							);

    						}

    					} else {

    						if ( geometryAttribute.isInstancedBufferAttribute ) {

    							for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

    								enableAttributeAndDivisor( programAttribute.location + i, geometryAttribute.meshPerAttribute );

    							}

    							if ( object.isInstancedMesh !== true && geometry._maxInstanceCount === undefined ) {

    								geometry._maxInstanceCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;

    							}

    						} else {

    							for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

    								enableAttribute( programAttribute.location + i );

    							}

    						}

    						gl.bindBuffer( 34962, buffer );

    						for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

    							vertexAttribPointer(
    								programAttribute.location + i,
    								size / programAttribute.locationSize,
    								type,
    								normalized,
    								size * bytesPerElement,
    								( size / programAttribute.locationSize ) * i * bytesPerElement
    							);

    						}

    					}

    				} else if ( materialDefaultAttributeValues !== undefined ) {

    					const value = materialDefaultAttributeValues[ name ];

    					if ( value !== undefined ) {

    						switch ( value.length ) {

    							case 2:
    								gl.vertexAttrib2fv( programAttribute.location, value );
    								break;

    							case 3:
    								gl.vertexAttrib3fv( programAttribute.location, value );
    								break;

    							case 4:
    								gl.vertexAttrib4fv( programAttribute.location, value );
    								break;

    							default:
    								gl.vertexAttrib1fv( programAttribute.location, value );

    						}

    					}

    				}

    			}

    		}

    		disableUnusedAttributes();

    	}

    	function dispose() {

    		reset();

    		for ( const geometryId in bindingStates ) {

    			const programMap = bindingStates[ geometryId ];

    			for ( const programId in programMap ) {

    				const stateMap = programMap[ programId ];

    				for ( const wireframe in stateMap ) {

    					deleteVertexArrayObject( stateMap[ wireframe ].object );

    					delete stateMap[ wireframe ];

    				}

    				delete programMap[ programId ];

    			}

    			delete bindingStates[ geometryId ];

    		}

    	}

    	function releaseStatesOfGeometry( geometry ) {

    		if ( bindingStates[ geometry.id ] === undefined ) return;

    		const programMap = bindingStates[ geometry.id ];

    		for ( const programId in programMap ) {

    			const stateMap = programMap[ programId ];

    			for ( const wireframe in stateMap ) {

    				deleteVertexArrayObject( stateMap[ wireframe ].object );

    				delete stateMap[ wireframe ];

    			}

    			delete programMap[ programId ];

    		}

    		delete bindingStates[ geometry.id ];

    	}

    	function releaseStatesOfProgram( program ) {

    		for ( const geometryId in bindingStates ) {

    			const programMap = bindingStates[ geometryId ];

    			if ( programMap[ program.id ] === undefined ) continue;

    			const stateMap = programMap[ program.id ];

    			for ( const wireframe in stateMap ) {

    				deleteVertexArrayObject( stateMap[ wireframe ].object );

    				delete stateMap[ wireframe ];

    			}

    			delete programMap[ program.id ];

    		}

    	}

    	function reset() {

    		resetDefaultState();
    		forceUpdate = true;

    		if ( currentState === defaultState ) return;

    		currentState = defaultState;
    		bindVertexArrayObject( currentState.object );

    	}

    	// for backward-compatibility

    	function resetDefaultState() {

    		defaultState.geometry = null;
    		defaultState.program = null;
    		defaultState.wireframe = false;

    	}

    	return {

    		setup: setup,
    		reset: reset,
    		resetDefaultState: resetDefaultState,
    		dispose: dispose,
    		releaseStatesOfGeometry: releaseStatesOfGeometry,
    		releaseStatesOfProgram: releaseStatesOfProgram,

    		initAttributes: initAttributes,
    		enableAttribute: enableAttribute,
    		disableUnusedAttributes: disableUnusedAttributes

    	};

    }

    function WebGLBufferRenderer( gl, extensions, info, capabilities ) {

    	const isWebGL2 = capabilities.isWebGL2;

    	let mode;

    	function setMode( value ) {

    		mode = value;

    	}

    	function render( start, count ) {

    		gl.drawArrays( mode, start, count );

    		info.update( count, mode, 1 );

    	}

    	function renderInstances( start, count, primcount ) {

    		if ( primcount === 0 ) return;

    		let extension, methodName;

    		if ( isWebGL2 ) {

    			extension = gl;
    			methodName = 'drawArraysInstanced';

    		} else {

    			extension = extensions.get( 'ANGLE_instanced_arrays' );
    			methodName = 'drawArraysInstancedANGLE';

    			if ( extension === null ) {

    				console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
    				return;

    			}

    		}

    		extension[ methodName ]( mode, start, count, primcount );

    		info.update( count, mode, primcount );

    	}

    	//

    	this.setMode = setMode;
    	this.render = render;
    	this.renderInstances = renderInstances;

    }

    function WebGLCapabilities( gl, extensions, parameters ) {

    	let maxAnisotropy;

    	function getMaxAnisotropy() {

    		if ( maxAnisotropy !== undefined ) return maxAnisotropy;

    		if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) {

    			const extension = extensions.get( 'EXT_texture_filter_anisotropic' );

    			maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );

    		} else {

    			maxAnisotropy = 0;

    		}

    		return maxAnisotropy;

    	}

    	function getMaxPrecision( precision ) {

    		if ( precision === 'highp' ) {

    			if ( gl.getShaderPrecisionFormat( 35633, 36338 ).precision > 0 &&
    				gl.getShaderPrecisionFormat( 35632, 36338 ).precision > 0 ) {

    				return 'highp';

    			}

    			precision = 'mediump';

    		}

    		if ( precision === 'mediump' ) {

    			if ( gl.getShaderPrecisionFormat( 35633, 36337 ).precision > 0 &&
    				gl.getShaderPrecisionFormat( 35632, 36337 ).precision > 0 ) {

    				return 'mediump';

    			}

    		}

    		return 'lowp';

    	}

    	const isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext ) ||
    		( typeof WebGL2ComputeRenderingContext !== 'undefined' && gl instanceof WebGL2ComputeRenderingContext );

    	let precision = parameters.precision !== undefined ? parameters.precision : 'highp';
    	const maxPrecision = getMaxPrecision( precision );

    	if ( maxPrecision !== precision ) {

    		console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );
    		precision = maxPrecision;

    	}

    	const drawBuffers = isWebGL2 || extensions.has( 'WEBGL_draw_buffers' );

    	const logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;

    	const maxTextures = gl.getParameter( 34930 );
    	const maxVertexTextures = gl.getParameter( 35660 );
    	const maxTextureSize = gl.getParameter( 3379 );
    	const maxCubemapSize = gl.getParameter( 34076 );

    	const maxAttributes = gl.getParameter( 34921 );
    	const maxVertexUniforms = gl.getParameter( 36347 );
    	const maxVaryings = gl.getParameter( 36348 );
    	const maxFragmentUniforms = gl.getParameter( 36349 );

    	const vertexTextures = maxVertexTextures > 0;
    	const floatFragmentTextures = isWebGL2 || extensions.has( 'OES_texture_float' );
    	const floatVertexTextures = vertexTextures && floatFragmentTextures;

    	const maxSamples = isWebGL2 ? gl.getParameter( 36183 ) : 0;

    	return {

    		isWebGL2: isWebGL2,

    		drawBuffers: drawBuffers,

    		getMaxAnisotropy: getMaxAnisotropy,
    		getMaxPrecision: getMaxPrecision,

    		precision: precision,
    		logarithmicDepthBuffer: logarithmicDepthBuffer,

    		maxTextures: maxTextures,
    		maxVertexTextures: maxVertexTextures,
    		maxTextureSize: maxTextureSize,
    		maxCubemapSize: maxCubemapSize,

    		maxAttributes: maxAttributes,
    		maxVertexUniforms: maxVertexUniforms,
    		maxVaryings: maxVaryings,
    		maxFragmentUniforms: maxFragmentUniforms,

    		vertexTextures: vertexTextures,
    		floatFragmentTextures: floatFragmentTextures,
    		floatVertexTextures: floatVertexTextures,

    		maxSamples: maxSamples

    	};

    }

    function WebGLClipping( properties ) {

    	const scope = this;

    	let globalState = null,
    		numGlobalPlanes = 0,
    		localClippingEnabled = false,
    		renderingShadows = false;

    	const plane = new Plane(),
    		viewNormalMatrix = new Matrix3(),

    		uniform = { value: null, needsUpdate: false };

    	this.uniform = uniform;
    	this.numPlanes = 0;
    	this.numIntersection = 0;

    	this.init = function ( planes, enableLocalClipping, camera ) {

    		const enabled =
    			planes.length !== 0 ||
    			enableLocalClipping ||
    			// enable state of previous frame - the clipping code has to
    			// run another frame in order to reset the state:
    			numGlobalPlanes !== 0 ||
    			localClippingEnabled;

    		localClippingEnabled = enableLocalClipping;

    		globalState = projectPlanes( planes, camera, 0 );
    		numGlobalPlanes = planes.length;

    		return enabled;

    	};

    	this.beginShadows = function () {

    		renderingShadows = true;
    		projectPlanes( null );

    	};

    	this.endShadows = function () {

    		renderingShadows = false;
    		resetGlobalState();

    	};

    	this.setState = function ( material, camera, useCache ) {

    		const planes = material.clippingPlanes,
    			clipIntersection = material.clipIntersection,
    			clipShadows = material.clipShadows;

    		const materialProperties = properties.get( material );

    		if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {

    			// there's no local clipping

    			if ( renderingShadows ) {

    				// there's no global clipping

    				projectPlanes( null );

    			} else {

    				resetGlobalState();

    			}

    		} else {

    			const nGlobal = renderingShadows ? 0 : numGlobalPlanes,
    				lGlobal = nGlobal * 4;

    			let dstArray = materialProperties.clippingState || null;

    			uniform.value = dstArray; // ensure unique state

    			dstArray = projectPlanes( planes, camera, lGlobal, useCache );

    			for ( let i = 0; i !== lGlobal; ++ i ) {

    				dstArray[ i ] = globalState[ i ];

    			}

    			materialProperties.clippingState = dstArray;
    			this.numIntersection = clipIntersection ? this.numPlanes : 0;
    			this.numPlanes += nGlobal;

    		}


    	};

    	function resetGlobalState() {

    		if ( uniform.value !== globalState ) {

    			uniform.value = globalState;
    			uniform.needsUpdate = numGlobalPlanes > 0;

    		}

    		scope.numPlanes = numGlobalPlanes;
    		scope.numIntersection = 0;

    	}

    	function projectPlanes( planes, camera, dstOffset, skipTransform ) {

    		const nPlanes = planes !== null ? planes.length : 0;
    		let dstArray = null;

    		if ( nPlanes !== 0 ) {

    			dstArray = uniform.value;

    			if ( skipTransform !== true || dstArray === null ) {

    				const flatSize = dstOffset + nPlanes * 4,
    					viewMatrix = camera.matrixWorldInverse;

    				viewNormalMatrix.getNormalMatrix( viewMatrix );

    				if ( dstArray === null || dstArray.length < flatSize ) {

    					dstArray = new Float32Array( flatSize );

    				}

    				for ( let i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {

    					plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );

    					plane.normal.toArray( dstArray, i4 );
    					dstArray[ i4 + 3 ] = plane.constant;

    				}

    			}

    			uniform.value = dstArray;
    			uniform.needsUpdate = true;

    		}

    		scope.numPlanes = nPlanes;
    		scope.numIntersection = 0;

    		return dstArray;

    	}

    }

    function WebGLCubeMaps( renderer ) {

    	let cubemaps = new WeakMap();

    	function mapTextureMapping( texture, mapping ) {

    		if ( mapping === EquirectangularReflectionMapping ) {

    			texture.mapping = CubeReflectionMapping;

    		} else if ( mapping === EquirectangularRefractionMapping ) {

    			texture.mapping = CubeRefractionMapping;

    		}

    		return texture;

    	}

    	function get( texture ) {

    		if ( texture && texture.isTexture && texture.isRenderTargetTexture === false ) {

    			const mapping = texture.mapping;

    			if ( mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping ) {

    				if ( cubemaps.has( texture ) ) {

    					const cubemap = cubemaps.get( texture ).texture;
    					return mapTextureMapping( cubemap, texture.mapping );

    				} else {

    					const image = texture.image;

    					if ( image && image.height > 0 ) {

    						const renderTarget = new WebGLCubeRenderTarget( image.height / 2 );
    						renderTarget.fromEquirectangularTexture( renderer, texture );
    						cubemaps.set( texture, renderTarget );

    						texture.addEventListener( 'dispose', onTextureDispose );

    						return mapTextureMapping( renderTarget.texture, texture.mapping );

    					} else {

    						// image not yet ready. try the conversion next frame

    						return null;

    					}

    				}

    			}

    		}

    		return texture;

    	}

    	function onTextureDispose( event ) {

    		const texture = event.target;

    		texture.removeEventListener( 'dispose', onTextureDispose );

    		const cubemap = cubemaps.get( texture );

    		if ( cubemap !== undefined ) {

    			cubemaps.delete( texture );
    			cubemap.dispose();

    		}

    	}

    	function dispose() {

    		cubemaps = new WeakMap();

    	}

    	return {
    		get: get,
    		dispose: dispose
    	};

    }

    class OrthographicCamera extends Camera {

    	constructor( left = - 1, right = 1, top = 1, bottom = - 1, near = 0.1, far = 2000 ) {

    		super();

    		this.isOrthographicCamera = true;

    		this.type = 'OrthographicCamera';

    		this.zoom = 1;
    		this.view = null;

    		this.left = left;
    		this.right = right;
    		this.top = top;
    		this.bottom = bottom;

    		this.near = near;
    		this.far = far;

    		this.updateProjectionMatrix();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.left = source.left;
    		this.right = source.right;
    		this.top = source.top;
    		this.bottom = source.bottom;
    		this.near = source.near;
    		this.far = source.far;

    		this.zoom = source.zoom;
    		this.view = source.view === null ? null : Object.assign( {}, source.view );

    		return this;

    	}

    	setViewOffset( fullWidth, fullHeight, x, y, width, height ) {

    		if ( this.view === null ) {

    			this.view = {
    				enabled: true,
    				fullWidth: 1,
    				fullHeight: 1,
    				offsetX: 0,
    				offsetY: 0,
    				width: 1,
    				height: 1
    			};

    		}

    		this.view.enabled = true;
    		this.view.fullWidth = fullWidth;
    		this.view.fullHeight = fullHeight;
    		this.view.offsetX = x;
    		this.view.offsetY = y;
    		this.view.width = width;
    		this.view.height = height;

    		this.updateProjectionMatrix();

    	}

    	clearViewOffset() {

    		if ( this.view !== null ) {

    			this.view.enabled = false;

    		}

    		this.updateProjectionMatrix();

    	}

    	updateProjectionMatrix() {

    		const dx = ( this.right - this.left ) / ( 2 * this.zoom );
    		const dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
    		const cx = ( this.right + this.left ) / 2;
    		const cy = ( this.top + this.bottom ) / 2;

    		let left = cx - dx;
    		let right = cx + dx;
    		let top = cy + dy;
    		let bottom = cy - dy;

    		if ( this.view !== null && this.view.enabled ) {

    			const scaleW = ( this.right - this.left ) / this.view.fullWidth / this.zoom;
    			const scaleH = ( this.top - this.bottom ) / this.view.fullHeight / this.zoom;

    			left += scaleW * this.view.offsetX;
    			right = left + scaleW * this.view.width;
    			top -= scaleH * this.view.offsetY;
    			bottom = top - scaleH * this.view.height;

    		}

    		this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );

    		this.projectionMatrixInverse.copy( this.projectionMatrix ).invert();

    	}

    	toJSON( meta ) {

    		const data = super.toJSON( meta );

    		data.object.zoom = this.zoom;
    		data.object.left = this.left;
    		data.object.right = this.right;
    		data.object.top = this.top;
    		data.object.bottom = this.bottom;
    		data.object.near = this.near;
    		data.object.far = this.far;

    		if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );

    		return data;

    	}

    }

    const LOD_MIN = 4;

    // The standard deviations (radians) associated with the extra mips. These are
    // chosen to approximate a Trowbridge-Reitz distribution function times the
    // geometric shadowing function. These sigma values squared must match the
    // variance #defines in cube_uv_reflection_fragment.glsl.js.
    const EXTRA_LOD_SIGMA = [ 0.125, 0.215, 0.35, 0.446, 0.526, 0.582 ];

    // The maximum length of the blur for loop. Smaller sigmas will use fewer
    // samples and exit early, but not recompile the shader.
    const MAX_SAMPLES = 20;

    const _flatCamera = /*@__PURE__*/ new OrthographicCamera();
    const _clearColor = /*@__PURE__*/ new Color();
    let _oldTarget = null;

    // Golden Ratio
    const PHI = ( 1 + Math.sqrt( 5 ) ) / 2;
    const INV_PHI = 1 / PHI;

    // Vertices of a dodecahedron (except the opposites, which represent the
    // same axis), used as axis directions evenly spread on a sphere.
    const _axisDirections = [
    	/*@__PURE__*/ new Vector3( 1, 1, 1 ),
    	/*@__PURE__*/ new Vector3( - 1, 1, 1 ),
    	/*@__PURE__*/ new Vector3( 1, 1, - 1 ),
    	/*@__PURE__*/ new Vector3( - 1, 1, - 1 ),
    	/*@__PURE__*/ new Vector3( 0, PHI, INV_PHI ),
    	/*@__PURE__*/ new Vector3( 0, PHI, - INV_PHI ),
    	/*@__PURE__*/ new Vector3( INV_PHI, 0, PHI ),
    	/*@__PURE__*/ new Vector3( - INV_PHI, 0, PHI ),
    	/*@__PURE__*/ new Vector3( PHI, INV_PHI, 0 ),
    	/*@__PURE__*/ new Vector3( - PHI, INV_PHI, 0 ) ];

    /**
     * This class generates a Prefiltered, Mipmapped Radiance Environment Map
     * (PMREM) from a cubeMap environment texture. This allows different levels of
     * blur to be quickly accessed based on material roughness. It is packed into a
     * special CubeUV format that allows us to perform custom interpolation so that
     * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap
     * chain, it only goes down to the LOD_MIN level (above), and then creates extra
     * even more filtered 'mips' at the same LOD_MIN resolution, associated with
     * higher roughness levels. In this way we maintain resolution to smoothly
     * interpolate diffuse lighting while limiting sampling computation.
     *
     * Paper: Fast, Accurate Image-Based Lighting
     * https://drive.google.com/file/d/15y8r_UpKlU9SvV4ILb0C3qCPecS8pvLz/view
    */

    class PMREMGenerator {

    	constructor( renderer ) {

    		this._renderer = renderer;
    		this._pingPongRenderTarget = null;

    		this._lodMax = 0;
    		this._cubeSize = 0;
    		this._lodPlanes = [];
    		this._sizeLods = [];
    		this._sigmas = [];

    		this._blurMaterial = null;
    		this._cubemapMaterial = null;
    		this._equirectMaterial = null;

    		this._compileMaterial( this._blurMaterial );

    	}

    	/**
    	 * Generates a PMREM from a supplied Scene, which can be faster than using an
    	 * image if networking bandwidth is low. Optional sigma specifies a blur radius
    	 * in radians to be applied to the scene before PMREM generation. Optional near
    	 * and far planes ensure the scene is rendered in its entirety (the cubeCamera
    	 * is placed at the origin).
    	 */
    	fromScene( scene, sigma = 0, near = 0.1, far = 100 ) {

    		_oldTarget = this._renderer.getRenderTarget();

    		this._setSize( 256 );

    		const cubeUVRenderTarget = this._allocateTargets();
    		cubeUVRenderTarget.depthBuffer = true;

    		this._sceneToCubeUV( scene, near, far, cubeUVRenderTarget );

    		if ( sigma > 0 ) {

    			this._blur( cubeUVRenderTarget, 0, 0, sigma );

    		}

    		this._applyPMREM( cubeUVRenderTarget );
    		this._cleanup( cubeUVRenderTarget );

    		return cubeUVRenderTarget;

    	}

    	/**
    	 * Generates a PMREM from an equirectangular texture, which can be either LDR
    	 * or HDR. The ideal input image size is 1k (1024 x 512),
    	 * as this matches best with the 256 x 256 cubemap output.
    	 */
    	fromEquirectangular( equirectangular, renderTarget = null ) {

    		return this._fromTexture( equirectangular, renderTarget );

    	}

    	/**
    	 * Generates a PMREM from an cubemap texture, which can be either LDR
    	 * or HDR. The ideal input cube size is 256 x 256,
    	 * as this matches best with the 256 x 256 cubemap output.
    	 */
    	fromCubemap( cubemap, renderTarget = null ) {

    		return this._fromTexture( cubemap, renderTarget );

    	}

    	/**
    	 * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during
    	 * your texture's network fetch for increased concurrency.
    	 */
    	compileCubemapShader() {

    		if ( this._cubemapMaterial === null ) {

    			this._cubemapMaterial = _getCubemapMaterial();
    			this._compileMaterial( this._cubemapMaterial );

    		}

    	}

    	/**
    	 * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during
    	 * your texture's network fetch for increased concurrency.
    	 */
    	compileEquirectangularShader() {

    		if ( this._equirectMaterial === null ) {

    			this._equirectMaterial = _getEquirectMaterial();
    			this._compileMaterial( this._equirectMaterial );

    		}

    	}

    	/**
    	 * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class,
    	 * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on
    	 * one of them will cause any others to also become unusable.
    	 */
    	dispose() {

    		this._dispose();

    		if ( this._cubemapMaterial !== null ) this._cubemapMaterial.dispose();
    		if ( this._equirectMaterial !== null ) this._equirectMaterial.dispose();

    	}

    	// private interface

    	_setSize( cubeSize ) {

    		this._lodMax = Math.floor( Math.log2( cubeSize ) );
    		this._cubeSize = Math.pow( 2, this._lodMax );

    	}

    	_dispose() {

    		if ( this._blurMaterial !== null ) this._blurMaterial.dispose();

    		if ( this._pingPongRenderTarget !== null ) this._pingPongRenderTarget.dispose();

    		for ( let i = 0; i < this._lodPlanes.length; i ++ ) {

    			this._lodPlanes[ i ].dispose();

    		}

    	}

    	_cleanup( outputTarget ) {

    		this._renderer.setRenderTarget( _oldTarget );
    		outputTarget.scissorTest = false;
    		_setViewport( outputTarget, 0, 0, outputTarget.width, outputTarget.height );

    	}

    	_fromTexture( texture, renderTarget ) {

    		if ( texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping ) {

    			this._setSize( texture.image.length === 0 ? 16 : ( texture.image[ 0 ].width || texture.image[ 0 ].image.width ) );

    		} else { // Equirectangular

    			this._setSize( texture.image.width / 4 );

    		}

    		_oldTarget = this._renderer.getRenderTarget();

    		const cubeUVRenderTarget = renderTarget || this._allocateTargets();
    		this._textureToCubeUV( texture, cubeUVRenderTarget );
    		this._applyPMREM( cubeUVRenderTarget );
    		this._cleanup( cubeUVRenderTarget );

    		return cubeUVRenderTarget;

    	}

    	_allocateTargets() {

    		const width = 3 * Math.max( this._cubeSize, 16 * 7 );
    		const height = 4 * this._cubeSize;

    		const params = {
    			magFilter: LinearFilter,
    			minFilter: LinearFilter,
    			generateMipmaps: false,
    			type: HalfFloatType,
    			format: RGBAFormat,
    			encoding: LinearEncoding,
    			depthBuffer: false
    		};

    		const cubeUVRenderTarget = _createRenderTarget( width, height, params );

    		if ( this._pingPongRenderTarget === null || this._pingPongRenderTarget.width !== width ) {

    			if ( this._pingPongRenderTarget !== null ) {

    				this._dispose();

    			}

    			this._pingPongRenderTarget = _createRenderTarget( width, height, params );

    			const { _lodMax } = this;
    			( { sizeLods: this._sizeLods, lodPlanes: this._lodPlanes, sigmas: this._sigmas } = _createPlanes( _lodMax ) );

    			this._blurMaterial = _getBlurShader( _lodMax, width, height );

    		}

    		return cubeUVRenderTarget;

    	}

    	_compileMaterial( material ) {

    		const tmpMesh = new Mesh( this._lodPlanes[ 0 ], material );
    		this._renderer.compile( tmpMesh, _flatCamera );

    	}

    	_sceneToCubeUV( scene, near, far, cubeUVRenderTarget ) {

    		const fov = 90;
    		const aspect = 1;
    		const cubeCamera = new PerspectiveCamera( fov, aspect, near, far );
    		const upSign = [ 1, - 1, 1, 1, 1, 1 ];
    		const forwardSign = [ 1, 1, 1, - 1, - 1, - 1 ];
    		const renderer = this._renderer;

    		const originalAutoClear = renderer.autoClear;
    		const toneMapping = renderer.toneMapping;
    		renderer.getClearColor( _clearColor );

    		renderer.toneMapping = NoToneMapping;
    		renderer.autoClear = false;

    		const backgroundMaterial = new MeshBasicMaterial( {
    			name: 'PMREM.Background',
    			side: BackSide,
    			depthWrite: false,
    			depthTest: false,
    		} );

    		const backgroundBox = new Mesh( new BoxGeometry(), backgroundMaterial );

    		let useSolidColor = false;
    		const background = scene.background;

    		if ( background ) {

    			if ( background.isColor ) {

    				backgroundMaterial.color.copy( background );
    				scene.background = null;
    				useSolidColor = true;

    			}

    		} else {

    			backgroundMaterial.color.copy( _clearColor );
    			useSolidColor = true;

    		}

    		for ( let i = 0; i < 6; i ++ ) {

    			const col = i % 3;

    			if ( col === 0 ) {

    				cubeCamera.up.set( 0, upSign[ i ], 0 );
    				cubeCamera.lookAt( forwardSign[ i ], 0, 0 );

    			} else if ( col === 1 ) {

    				cubeCamera.up.set( 0, 0, upSign[ i ] );
    				cubeCamera.lookAt( 0, forwardSign[ i ], 0 );

    			} else {

    				cubeCamera.up.set( 0, upSign[ i ], 0 );
    				cubeCamera.lookAt( 0, 0, forwardSign[ i ] );

    			}

    			const size = this._cubeSize;

    			_setViewport( cubeUVRenderTarget, col * size, i > 2 ? size : 0, size, size );

    			renderer.setRenderTarget( cubeUVRenderTarget );

    			if ( useSolidColor ) {

    				renderer.render( backgroundBox, cubeCamera );

    			}

    			renderer.render( scene, cubeCamera );

    		}

    		backgroundBox.geometry.dispose();
    		backgroundBox.material.dispose();

    		renderer.toneMapping = toneMapping;
    		renderer.autoClear = originalAutoClear;
    		scene.background = background;

    	}

    	_textureToCubeUV( texture, cubeUVRenderTarget ) {

    		const renderer = this._renderer;

    		const isCubeTexture = ( texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping );

    		if ( isCubeTexture ) {

    			if ( this._cubemapMaterial === null ) {

    				this._cubemapMaterial = _getCubemapMaterial();

    			}

    			this._cubemapMaterial.uniforms.flipEnvMap.value = ( texture.isRenderTargetTexture === false ) ? - 1 : 1;

    		} else {

    			if ( this._equirectMaterial === null ) {

    				this._equirectMaterial = _getEquirectMaterial();

    			}

    		}

    		const material = isCubeTexture ? this._cubemapMaterial : this._equirectMaterial;
    		const mesh = new Mesh( this._lodPlanes[ 0 ], material );

    		const uniforms = material.uniforms;

    		uniforms[ 'envMap' ].value = texture;

    		const size = this._cubeSize;

    		_setViewport( cubeUVRenderTarget, 0, 0, 3 * size, 2 * size );

    		renderer.setRenderTarget( cubeUVRenderTarget );
    		renderer.render( mesh, _flatCamera );

    	}

    	_applyPMREM( cubeUVRenderTarget ) {

    		const renderer = this._renderer;
    		const autoClear = renderer.autoClear;
    		renderer.autoClear = false;

    		for ( let i = 1; i < this._lodPlanes.length; i ++ ) {

    			const sigma = Math.sqrt( this._sigmas[ i ] * this._sigmas[ i ] - this._sigmas[ i - 1 ] * this._sigmas[ i - 1 ] );

    			const poleAxis = _axisDirections[ ( i - 1 ) % _axisDirections.length ];

    			this._blur( cubeUVRenderTarget, i - 1, i, sigma, poleAxis );

    		}

    		renderer.autoClear = autoClear;

    	}

    	/**
    	 * This is a two-pass Gaussian blur for a cubemap. Normally this is done
    	 * vertically and horizontally, but this breaks down on a cube. Here we apply
    	 * the blur latitudinally (around the poles), and then longitudinally (towards
    	 * the poles) to approximate the orthogonally-separable blur. It is least
    	 * accurate at the poles, but still does a decent job.
    	 */
    	_blur( cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis ) {

    		const pingPongRenderTarget = this._pingPongRenderTarget;

    		this._halfBlur(
    			cubeUVRenderTarget,
    			pingPongRenderTarget,
    			lodIn,
    			lodOut,
    			sigma,
    			'latitudinal',
    			poleAxis );

    		this._halfBlur(
    			pingPongRenderTarget,
    			cubeUVRenderTarget,
    			lodOut,
    			lodOut,
    			sigma,
    			'longitudinal',
    			poleAxis );

    	}

    	_halfBlur( targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis ) {

    		const renderer = this._renderer;
    		const blurMaterial = this._blurMaterial;

    		if ( direction !== 'latitudinal' && direction !== 'longitudinal' ) {

    			console.error(
    				'blur direction must be either latitudinal or longitudinal!' );

    		}

    		// Number of standard deviations at which to cut off the discrete approximation.
    		const STANDARD_DEVIATIONS = 3;

    		const blurMesh = new Mesh( this._lodPlanes[ lodOut ], blurMaterial );
    		const blurUniforms = blurMaterial.uniforms;

    		const pixels = this._sizeLods[ lodIn ] - 1;
    		const radiansPerPixel = isFinite( sigmaRadians ) ? Math.PI / ( 2 * pixels ) : 2 * Math.PI / ( 2 * MAX_SAMPLES - 1 );
    		const sigmaPixels = sigmaRadians / radiansPerPixel;
    		const samples = isFinite( sigmaRadians ) ? 1 + Math.floor( STANDARD_DEVIATIONS * sigmaPixels ) : MAX_SAMPLES;

    		if ( samples > MAX_SAMPLES ) {

    			console.warn( `sigmaRadians, ${
				sigmaRadians}, is too large and will clip, as it requested ${
				samples} samples when the maximum is set to ${MAX_SAMPLES}` );

    		}

    		const weights = [];
    		let sum = 0;

    		for ( let i = 0; i < MAX_SAMPLES; ++ i ) {

    			const x = i / sigmaPixels;
    			const weight = Math.exp( - x * x / 2 );
    			weights.push( weight );

    			if ( i === 0 ) {

    				sum += weight;

    			} else if ( i < samples ) {

    				sum += 2 * weight;

    			}

    		}

    		for ( let i = 0; i < weights.length; i ++ ) {

    			weights[ i ] = weights[ i ] / sum;

    		}

    		blurUniforms[ 'envMap' ].value = targetIn.texture;
    		blurUniforms[ 'samples' ].value = samples;
    		blurUniforms[ 'weights' ].value = weights;
    		blurUniforms[ 'latitudinal' ].value = direction === 'latitudinal';

    		if ( poleAxis ) {

    			blurUniforms[ 'poleAxis' ].value = poleAxis;

    		}

    		const { _lodMax } = this;
    		blurUniforms[ 'dTheta' ].value = radiansPerPixel;
    		blurUniforms[ 'mipInt' ].value = _lodMax - lodIn;

    		const outputSize = this._sizeLods[ lodOut ];
    		const x = 3 * outputSize * ( lodOut > _lodMax - LOD_MIN ? lodOut - _lodMax + LOD_MIN : 0 );
    		const y = 4 * ( this._cubeSize - outputSize );

    		_setViewport( targetOut, x, y, 3 * outputSize, 2 * outputSize );
    		renderer.setRenderTarget( targetOut );
    		renderer.render( blurMesh, _flatCamera );

    	}

    }



    function _createPlanes( lodMax ) {

    	const lodPlanes = [];
    	const sizeLods = [];
    	const sigmas = [];

    	let lod = lodMax;

    	const totalLods = lodMax - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length;

    	for ( let i = 0; i < totalLods; i ++ ) {

    		const sizeLod = Math.pow( 2, lod );
    		sizeLods.push( sizeLod );
    		let sigma = 1.0 / sizeLod;

    		if ( i > lodMax - LOD_MIN ) {

    			sigma = EXTRA_LOD_SIGMA[ i - lodMax + LOD_MIN - 1 ];

    		} else if ( i === 0 ) {

    			sigma = 0;

    		}

    		sigmas.push( sigma );

    		const texelSize = 1.0 / ( sizeLod - 2 );
    		const min = - texelSize;
    		const max = 1 + texelSize;
    		const uv1 = [ min, min, max, min, max, max, min, min, max, max, min, max ];

    		const cubeFaces = 6;
    		const vertices = 6;
    		const positionSize = 3;
    		const uvSize = 2;
    		const faceIndexSize = 1;

    		const position = new Float32Array( positionSize * vertices * cubeFaces );
    		const uv = new Float32Array( uvSize * vertices * cubeFaces );
    		const faceIndex = new Float32Array( faceIndexSize * vertices * cubeFaces );

    		for ( let face = 0; face < cubeFaces; face ++ ) {

    			const x = ( face % 3 ) * 2 / 3 - 1;
    			const y = face > 2 ? 0 : - 1;
    			const coordinates = [
    				x, y, 0,
    				x + 2 / 3, y, 0,
    				x + 2 / 3, y + 1, 0,
    				x, y, 0,
    				x + 2 / 3, y + 1, 0,
    				x, y + 1, 0
    			];
    			position.set( coordinates, positionSize * vertices * face );
    			uv.set( uv1, uvSize * vertices * face );
    			const fill = [ face, face, face, face, face, face ];
    			faceIndex.set( fill, faceIndexSize * vertices * face );

    		}

    		const planes = new BufferGeometry();
    		planes.setAttribute( 'position', new BufferAttribute( position, positionSize ) );
    		planes.setAttribute( 'uv', new BufferAttribute( uv, uvSize ) );
    		planes.setAttribute( 'faceIndex', new BufferAttribute( faceIndex, faceIndexSize ) );
    		lodPlanes.push( planes );

    		if ( lod > LOD_MIN ) {

    			lod --;

    		}

    	}

    	return { lodPlanes, sizeLods, sigmas };

    }

    function _createRenderTarget( width, height, params ) {

    	const cubeUVRenderTarget = new WebGLRenderTarget( width, height, params );
    	cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping;
    	cubeUVRenderTarget.texture.name = 'PMREM.cubeUv';
    	cubeUVRenderTarget.scissorTest = true;
    	return cubeUVRenderTarget;

    }

    function _setViewport( target, x, y, width, height ) {

    	target.viewport.set( x, y, width, height );
    	target.scissor.set( x, y, width, height );

    }

    function _getBlurShader( lodMax, width, height ) {

    	const weights = new Float32Array( MAX_SAMPLES );
    	const poleAxis = new Vector3( 0, 1, 0 );
    	const shaderMaterial = new ShaderMaterial( {

    		name: 'SphericalGaussianBlur',

    		defines: {
    			'n': MAX_SAMPLES,
    			'CUBEUV_TEXEL_WIDTH': 1.0 / width,
    			'CUBEUV_TEXEL_HEIGHT': 1.0 / height,
    			'CUBEUV_MAX_MIP': `${lodMax}.0`,
    		},

    		uniforms: {
    			'envMap': { value: null },
    			'samples': { value: 1 },
    			'weights': { value: weights },
    			'latitudinal': { value: false },
    			'dTheta': { value: 0 },
    			'mipInt': { value: 0 },
    			'poleAxis': { value: poleAxis }
    		},

    		vertexShader: _getCommonVertexShader(),

    		fragmentShader: /* glsl */`

			precision mediump float;
			precision mediump int;

			varying vec3 vOutputDirection;

			uniform sampler2D envMap;
			uniform int samples;
			uniform float weights[ n ];
			uniform bool latitudinal;
			uniform float dTheta;
			uniform float mipInt;
			uniform vec3 poleAxis;

			#define ENVMAP_TYPE_CUBE_UV
			#include <cube_uv_reflection_fragment>

			vec3 getSample( float theta, vec3 axis ) {

				float cosTheta = cos( theta );
				// Rodrigues' axis-angle rotation
				vec3 sampleDirection = vOutputDirection * cosTheta
					+ cross( axis, vOutputDirection ) * sin( theta )
					+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );

				return bilinearCubeUV( envMap, sampleDirection, mipInt );

			}

			void main() {

				vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );

				if ( all( equal( axis, vec3( 0.0 ) ) ) ) {

					axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );

				}

				axis = normalize( axis );

				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
				gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );

				for ( int i = 1; i < n; i++ ) {

					if ( i >= samples ) {

						break;

					}

					float theta = dTheta * float( i );
					gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );
					gl_FragColor.rgb += weights[ i ] * getSample( theta, axis );

				}

			}
		`,

    		blending: NoBlending,
    		depthTest: false,
    		depthWrite: false

    	} );

    	return shaderMaterial;

    }

    function _getEquirectMaterial() {

    	return new ShaderMaterial( {

    		name: 'EquirectangularToCubeUV',

    		uniforms: {
    			'envMap': { value: null }
    		},

    		vertexShader: _getCommonVertexShader(),

    		fragmentShader: /* glsl */`

			precision mediump float;
			precision mediump int;

			varying vec3 vOutputDirection;

			uniform sampler2D envMap;

			#include <common>

			void main() {

				vec3 outputDirection = normalize( vOutputDirection );
				vec2 uv = equirectUv( outputDirection );

				gl_FragColor = vec4( texture2D ( envMap, uv ).rgb, 1.0 );

			}
		`,

    		blending: NoBlending,
    		depthTest: false,
    		depthWrite: false

    	} );

    }

    function _getCubemapMaterial() {

    	return new ShaderMaterial( {

    		name: 'CubemapToCubeUV',

    		uniforms: {
    			'envMap': { value: null },
    			'flipEnvMap': { value: - 1 }
    		},

    		vertexShader: _getCommonVertexShader(),

    		fragmentShader: /* glsl */`

			precision mediump float;
			precision mediump int;

			uniform float flipEnvMap;

			varying vec3 vOutputDirection;

			uniform samplerCube envMap;

			void main() {

				gl_FragColor = textureCube( envMap, vec3( flipEnvMap * vOutputDirection.x, vOutputDirection.yz ) );

			}
		`,

    		blending: NoBlending,
    		depthTest: false,
    		depthWrite: false

    	} );

    }

    function _getCommonVertexShader() {

    	return /* glsl */`

		precision mediump float;
		precision mediump int;

		attribute float faceIndex;

		varying vec3 vOutputDirection;

		// RH coordinate system; PMREM face-indexing convention
		vec3 getDirection( vec2 uv, float face ) {

			uv = 2.0 * uv - 1.0;

			vec3 direction = vec3( uv, 1.0 );

			if ( face == 0.0 ) {

				direction = direction.zyx; // ( 1, v, u ) pos x

			} else if ( face == 1.0 ) {

				direction = direction.xzy;
				direction.xz *= -1.0; // ( -u, 1, -v ) pos y

			} else if ( face == 2.0 ) {

				direction.x *= -1.0; // ( -u, v, 1 ) pos z

			} else if ( face == 3.0 ) {

				direction = direction.zyx;
				direction.xz *= -1.0; // ( -1, v, -u ) neg x

			} else if ( face == 4.0 ) {

				direction = direction.xzy;
				direction.xy *= -1.0; // ( -u, -1, v ) neg y

			} else if ( face == 5.0 ) {

				direction.z *= -1.0; // ( u, v, -1 ) neg z

			}

			return direction;

		}

		void main() {

			vOutputDirection = getDirection( uv, faceIndex );
			gl_Position = vec4( position, 1.0 );

		}
	`;

    }

    function WebGLCubeUVMaps( renderer ) {

    	let cubeUVmaps = new WeakMap();

    	let pmremGenerator = null;

    	function get( texture ) {

    		if ( texture && texture.isTexture ) {

    			const mapping = texture.mapping;

    			const isEquirectMap = ( mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping );
    			const isCubeMap = ( mapping === CubeReflectionMapping || mapping === CubeRefractionMapping );

    			// equirect/cube map to cubeUV conversion

    			if ( isEquirectMap || isCubeMap ) {

    				if ( texture.isRenderTargetTexture && texture.needsPMREMUpdate === true ) {

    					texture.needsPMREMUpdate = false;

    					let renderTarget = cubeUVmaps.get( texture );

    					if ( pmremGenerator === null ) pmremGenerator = new PMREMGenerator( renderer );

    					renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular( texture, renderTarget ) : pmremGenerator.fromCubemap( texture, renderTarget );
    					cubeUVmaps.set( texture, renderTarget );

    					return renderTarget.texture;

    				} else {

    					if ( cubeUVmaps.has( texture ) ) {

    						return cubeUVmaps.get( texture ).texture;

    					} else {

    						const image = texture.image;

    						if ( ( isEquirectMap && image && image.height > 0 ) || ( isCubeMap && image && isCubeTextureComplete( image ) ) ) {

    							if ( pmremGenerator === null ) pmremGenerator = new PMREMGenerator( renderer );

    							const renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular( texture ) : pmremGenerator.fromCubemap( texture );
    							cubeUVmaps.set( texture, renderTarget );

    							texture.addEventListener( 'dispose', onTextureDispose );

    							return renderTarget.texture;

    						} else {

    							// image not yet ready. try the conversion next frame

    							return null;

    						}

    					}

    				}

    			}

    		}

    		return texture;

    	}

    	function isCubeTextureComplete( image ) {

    		let count = 0;
    		const length = 6;

    		for ( let i = 0; i < length; i ++ ) {

    			if ( image[ i ] !== undefined ) count ++;

    		}

    		return count === length;


    	}

    	function onTextureDispose( event ) {

    		const texture = event.target;

    		texture.removeEventListener( 'dispose', onTextureDispose );

    		const cubemapUV = cubeUVmaps.get( texture );

    		if ( cubemapUV !== undefined ) {

    			cubeUVmaps.delete( texture );
    			cubemapUV.dispose();

    		}

    	}

    	function dispose() {

    		cubeUVmaps = new WeakMap();

    		if ( pmremGenerator !== null ) {

    			pmremGenerator.dispose();
    			pmremGenerator = null;

    		}

    	}

    	return {
    		get: get,
    		dispose: dispose
    	};

    }

    function WebGLExtensions( gl ) {

    	const extensions = {};

    	function getExtension( name ) {

    		if ( extensions[ name ] !== undefined ) {

    			return extensions[ name ];

    		}

    		let extension;

    		switch ( name ) {

    			case 'WEBGL_depth_texture':
    				extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );
    				break;

    			case 'EXT_texture_filter_anisotropic':
    				extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
    				break;

    			case 'WEBGL_compressed_texture_s3tc':
    				extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
    				break;

    			case 'WEBGL_compressed_texture_pvrtc':
    				extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
    				break;

    			default:
    				extension = gl.getExtension( name );

    		}

    		extensions[ name ] = extension;

    		return extension;

    	}

    	return {

    		has: function ( name ) {

    			return getExtension( name ) !== null;

    		},

    		init: function ( capabilities ) {

    			if ( capabilities.isWebGL2 ) {

    				getExtension( 'EXT_color_buffer_float' );

    			} else {

    				getExtension( 'WEBGL_depth_texture' );
    				getExtension( 'OES_texture_float' );
    				getExtension( 'OES_texture_half_float' );
    				getExtension( 'OES_texture_half_float_linear' );
    				getExtension( 'OES_standard_derivatives' );
    				getExtension( 'OES_element_index_uint' );
    				getExtension( 'OES_vertex_array_object' );
    				getExtension( 'ANGLE_instanced_arrays' );

    			}

    			getExtension( 'OES_texture_float_linear' );
    			getExtension( 'EXT_color_buffer_half_float' );
    			getExtension( 'WEBGL_multisampled_render_to_texture' );

    		},

    		get: function ( name ) {

    			const extension = getExtension( name );

    			if ( extension === null ) {

    				console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );

    			}

    			return extension;

    		}

    	};

    }

    function WebGLGeometries( gl, attributes, info, bindingStates ) {

    	const geometries = {};
    	const wireframeAttributes = new WeakMap();

    	function onGeometryDispose( event ) {

    		const geometry = event.target;

    		if ( geometry.index !== null ) {

    			attributes.remove( geometry.index );

    		}

    		for ( const name in geometry.attributes ) {

    			attributes.remove( geometry.attributes[ name ] );

    		}

    		geometry.removeEventListener( 'dispose', onGeometryDispose );

    		delete geometries[ geometry.id ];

    		const attribute = wireframeAttributes.get( geometry );

    		if ( attribute ) {

    			attributes.remove( attribute );
    			wireframeAttributes.delete( geometry );

    		}

    		bindingStates.releaseStatesOfGeometry( geometry );

    		if ( geometry.isInstancedBufferGeometry === true ) {

    			delete geometry._maxInstanceCount;

    		}

    		//

    		info.memory.geometries --;

    	}

    	function get( object, geometry ) {

    		if ( geometries[ geometry.id ] === true ) return geometry;

    		geometry.addEventListener( 'dispose', onGeometryDispose );

    		geometries[ geometry.id ] = true;

    		info.memory.geometries ++;

    		return geometry;

    	}

    	function update( geometry ) {

    		const geometryAttributes = geometry.attributes;

    		// Updating index buffer in VAO now. See WebGLBindingStates.

    		for ( const name in geometryAttributes ) {

    			attributes.update( geometryAttributes[ name ], 34962 );

    		}

    		// morph targets

    		const morphAttributes = geometry.morphAttributes;

    		for ( const name in morphAttributes ) {

    			const array = morphAttributes[ name ];

    			for ( let i = 0, l = array.length; i < l; i ++ ) {

    				attributes.update( array[ i ], 34962 );

    			}

    		}

    	}

    	function updateWireframeAttribute( geometry ) {

    		const indices = [];

    		const geometryIndex = geometry.index;
    		const geometryPosition = geometry.attributes.position;
    		let version = 0;

    		if ( geometryIndex !== null ) {

    			const array = geometryIndex.array;
    			version = geometryIndex.version;

    			for ( let i = 0, l = array.length; i < l; i += 3 ) {

    				const a = array[ i + 0 ];
    				const b = array[ i + 1 ];
    				const c = array[ i + 2 ];

    				indices.push( a, b, b, c, c, a );

    			}

    		} else {

    			const array = geometryPosition.array;
    			version = geometryPosition.version;

    			for ( let i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {

    				const a = i + 0;
    				const b = i + 1;
    				const c = i + 2;

    				indices.push( a, b, b, c, c, a );

    			}

    		}

    		const attribute = new ( arrayNeedsUint32( indices ) ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
    		attribute.version = version;

    		// Updating index buffer in VAO now. See WebGLBindingStates

    		//

    		const previousAttribute = wireframeAttributes.get( geometry );

    		if ( previousAttribute ) attributes.remove( previousAttribute );

    		//

    		wireframeAttributes.set( geometry, attribute );

    	}

    	function getWireframeAttribute( geometry ) {

    		const currentAttribute = wireframeAttributes.get( geometry );

    		if ( currentAttribute ) {

    			const geometryIndex = geometry.index;

    			if ( geometryIndex !== null ) {

    				// if the attribute is obsolete, create a new one

    				if ( currentAttribute.version < geometryIndex.version ) {

    					updateWireframeAttribute( geometry );

    				}

    			}

    		} else {

    			updateWireframeAttribute( geometry );

    		}

    		return wireframeAttributes.get( geometry );

    	}

    	return {

    		get: get,
    		update: update,

    		getWireframeAttribute: getWireframeAttribute

    	};

    }

    function WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) {

    	const isWebGL2 = capabilities.isWebGL2;

    	let mode;

    	function setMode( value ) {

    		mode = value;

    	}

    	let type, bytesPerElement;

    	function setIndex( value ) {

    		type = value.type;
    		bytesPerElement = value.bytesPerElement;

    	}

    	function render( start, count ) {

    		gl.drawElements( mode, count, type, start * bytesPerElement );

    		info.update( count, mode, 1 );

    	}

    	function renderInstances( start, count, primcount ) {

    		if ( primcount === 0 ) return;

    		let extension, methodName;

    		if ( isWebGL2 ) {

    			extension = gl;
    			methodName = 'drawElementsInstanced';

    		} else {

    			extension = extensions.get( 'ANGLE_instanced_arrays' );
    			methodName = 'drawElementsInstancedANGLE';

    			if ( extension === null ) {

    				console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
    				return;

    			}

    		}

    		extension[ methodName ]( mode, count, type, start * bytesPerElement, primcount );

    		info.update( count, mode, primcount );

    	}

    	//

    	this.setMode = setMode;
    	this.setIndex = setIndex;
    	this.render = render;
    	this.renderInstances = renderInstances;

    }

    function WebGLInfo( gl ) {

    	const memory = {
    		geometries: 0,
    		textures: 0
    	};

    	const render = {
    		frame: 0,
    		calls: 0,
    		triangles: 0,
    		points: 0,
    		lines: 0
    	};

    	function update( count, mode, instanceCount ) {

    		render.calls ++;

    		switch ( mode ) {

    			case 4:
    				render.triangles += instanceCount * ( count / 3 );
    				break;

    			case 1:
    				render.lines += instanceCount * ( count / 2 );
    				break;

    			case 3:
    				render.lines += instanceCount * ( count - 1 );
    				break;

    			case 2:
    				render.lines += instanceCount * count;
    				break;

    			case 0:
    				render.points += instanceCount * count;
    				break;

    			default:
    				console.error( 'THREE.WebGLInfo: Unknown draw mode:', mode );
    				break;

    		}

    	}

    	function reset() {

    		render.frame ++;
    		render.calls = 0;
    		render.triangles = 0;
    		render.points = 0;
    		render.lines = 0;

    	}

    	return {
    		memory: memory,
    		render: render,
    		programs: null,
    		autoReset: true,
    		reset: reset,
    		update: update
    	};

    }

    function numericalSort( a, b ) {

    	return a[ 0 ] - b[ 0 ];

    }

    function absNumericalSort( a, b ) {

    	return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );

    }

    function WebGLMorphtargets( gl, capabilities, textures ) {

    	const influencesList = {};
    	const morphInfluences = new Float32Array( 8 );
    	const morphTextures = new WeakMap();
    	const morph = new Vector4();

    	const workInfluences = [];

    	for ( let i = 0; i < 8; i ++ ) {

    		workInfluences[ i ] = [ i, 0 ];

    	}

    	function update( object, geometry, material, program ) {

    		const objectInfluences = object.morphTargetInfluences;

    		if ( capabilities.isWebGL2 === true ) {

    			// instead of using attributes, the WebGL 2 code path encodes morph targets
    			// into an array of data textures. Each layer represents a single morph target.

    			const morphAttribute = geometry.morphAttributes.position || geometry.morphAttributes.normal || geometry.morphAttributes.color;
    			const morphTargetsCount = ( morphAttribute !== undefined ) ? morphAttribute.length : 0;

    			let entry = morphTextures.get( geometry );

    			if ( entry === undefined || entry.count !== morphTargetsCount ) {

    				if ( entry !== undefined ) entry.texture.dispose();

    				const hasMorphPosition = geometry.morphAttributes.position !== undefined;
    				const hasMorphNormals = geometry.morphAttributes.normal !== undefined;
    				const hasMorphColors = geometry.morphAttributes.color !== undefined;

    				const morphTargets = geometry.morphAttributes.position || [];
    				const morphNormals = geometry.morphAttributes.normal || [];
    				const morphColors = geometry.morphAttributes.color || [];

    				let vertexDataCount = 0;

    				if ( hasMorphPosition === true ) vertexDataCount = 1;
    				if ( hasMorphNormals === true ) vertexDataCount = 2;
    				if ( hasMorphColors === true ) vertexDataCount = 3;

    				let width = geometry.attributes.position.count * vertexDataCount;
    				let height = 1;

    				if ( width > capabilities.maxTextureSize ) {

    					height = Math.ceil( width / capabilities.maxTextureSize );
    					width = capabilities.maxTextureSize;

    				}

    				const buffer = new Float32Array( width * height * 4 * morphTargetsCount );

    				const texture = new DataArrayTexture( buffer, width, height, morphTargetsCount );
    				texture.type = FloatType;
    				texture.needsUpdate = true;

    				// fill buffer

    				const vertexDataStride = vertexDataCount * 4;

    				for ( let i = 0; i < morphTargetsCount; i ++ ) {

    					const morphTarget = morphTargets[ i ];
    					const morphNormal = morphNormals[ i ];
    					const morphColor = morphColors[ i ];

    					const offset = width * height * 4 * i;

    					for ( let j = 0; j < morphTarget.count; j ++ ) {

    						const stride = j * vertexDataStride;

    						if ( hasMorphPosition === true ) {

    							morph.fromBufferAttribute( morphTarget, j );

    							buffer[ offset + stride + 0 ] = morph.x;
    							buffer[ offset + stride + 1 ] = morph.y;
    							buffer[ offset + stride + 2 ] = morph.z;
    							buffer[ offset + stride + 3 ] = 0;

    						}

    						if ( hasMorphNormals === true ) {

    							morph.fromBufferAttribute( morphNormal, j );

    							buffer[ offset + stride + 4 ] = morph.x;
    							buffer[ offset + stride + 5 ] = morph.y;
    							buffer[ offset + stride + 6 ] = morph.z;
    							buffer[ offset + stride + 7 ] = 0;

    						}

    						if ( hasMorphColors === true ) {

    							morph.fromBufferAttribute( morphColor, j );

    							buffer[ offset + stride + 8 ] = morph.x;
    							buffer[ offset + stride + 9 ] = morph.y;
    							buffer[ offset + stride + 10 ] = morph.z;
    							buffer[ offset + stride + 11 ] = ( morphColor.itemSize === 4 ) ? morph.w : 1;

    						}

    					}

    				}

    				entry = {
    					count: morphTargetsCount,
    					texture: texture,
    					size: new Vector2( width, height )
    				};

    				morphTextures.set( geometry, entry );

    				function disposeTexture() {

    					texture.dispose();

    					morphTextures.delete( geometry );

    					geometry.removeEventListener( 'dispose', disposeTexture );

    				}

    				geometry.addEventListener( 'dispose', disposeTexture );

    			}

    			//

    			let morphInfluencesSum = 0;

    			for ( let i = 0; i < objectInfluences.length; i ++ ) {

    				morphInfluencesSum += objectInfluences[ i ];

    			}

    			const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;

    			program.getUniforms().setValue( gl, 'morphTargetBaseInfluence', morphBaseInfluence );
    			program.getUniforms().setValue( gl, 'morphTargetInfluences', objectInfluences );

    			program.getUniforms().setValue( gl, 'morphTargetsTexture', entry.texture, textures );
    			program.getUniforms().setValue( gl, 'morphTargetsTextureSize', entry.size );


    		} else {

    			// When object doesn't have morph target influences defined, we treat it as a 0-length array
    			// This is important to make sure we set up morphTargetBaseInfluence / morphTargetInfluences

    			const length = objectInfluences === undefined ? 0 : objectInfluences.length;

    			let influences = influencesList[ geometry.id ];

    			if ( influences === undefined || influences.length !== length ) {

    				// initialise list

    				influences = [];

    				for ( let i = 0; i < length; i ++ ) {

    					influences[ i ] = [ i, 0 ];

    				}

    				influencesList[ geometry.id ] = influences;

    			}

    			// Collect influences

    			for ( let i = 0; i < length; i ++ ) {

    				const influence = influences[ i ];

    				influence[ 0 ] = i;
    				influence[ 1 ] = objectInfluences[ i ];

    			}

    			influences.sort( absNumericalSort );

    			for ( let i = 0; i < 8; i ++ ) {

    				if ( i < length && influences[ i ][ 1 ] ) {

    					workInfluences[ i ][ 0 ] = influences[ i ][ 0 ];
    					workInfluences[ i ][ 1 ] = influences[ i ][ 1 ];

    				} else {

    					workInfluences[ i ][ 0 ] = Number.MAX_SAFE_INTEGER;
    					workInfluences[ i ][ 1 ] = 0;

    				}

    			}

    			workInfluences.sort( numericalSort );

    			const morphTargets = geometry.morphAttributes.position;
    			const morphNormals = geometry.morphAttributes.normal;

    			let morphInfluencesSum = 0;

    			for ( let i = 0; i < 8; i ++ ) {

    				const influence = workInfluences[ i ];
    				const index = influence[ 0 ];
    				const value = influence[ 1 ];

    				if ( index !== Number.MAX_SAFE_INTEGER && value ) {

    					if ( morphTargets && geometry.getAttribute( 'morphTarget' + i ) !== morphTargets[ index ] ) {

    						geometry.setAttribute( 'morphTarget' + i, morphTargets[ index ] );

    					}

    					if ( morphNormals && geometry.getAttribute( 'morphNormal' + i ) !== morphNormals[ index ] ) {

    						geometry.setAttribute( 'morphNormal' + i, morphNormals[ index ] );

    					}

    					morphInfluences[ i ] = value;
    					morphInfluencesSum += value;

    				} else {

    					if ( morphTargets && geometry.hasAttribute( 'morphTarget' + i ) === true ) {

    						geometry.deleteAttribute( 'morphTarget' + i );

    					}

    					if ( morphNormals && geometry.hasAttribute( 'morphNormal' + i ) === true ) {

    						geometry.deleteAttribute( 'morphNormal' + i );

    					}

    					morphInfluences[ i ] = 0;

    				}

    			}

    			// GLSL shader uses formula baseinfluence * base + sum(target * influence)
    			// This allows us to switch between absolute morphs and relative morphs without changing shader code
    			// When baseinfluence = 1 - sum(influence), the above is equivalent to sum((target - base) * influence)
    			const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;

    			program.getUniforms().setValue( gl, 'morphTargetBaseInfluence', morphBaseInfluence );
    			program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );

    		}

    	}

    	return {

    		update: update

    	};

    }

    function WebGLObjects( gl, geometries, attributes, info ) {

    	let updateMap = new WeakMap();

    	function update( object ) {

    		const frame = info.render.frame;

    		const geometry = object.geometry;
    		const buffergeometry = geometries.get( object, geometry );

    		// Update once per frame

    		if ( updateMap.get( buffergeometry ) !== frame ) {

    			geometries.update( buffergeometry );

    			updateMap.set( buffergeometry, frame );

    		}

    		if ( object.isInstancedMesh ) {

    			if ( object.hasEventListener( 'dispose', onInstancedMeshDispose ) === false ) {

    				object.addEventListener( 'dispose', onInstancedMeshDispose );

    			}

    			attributes.update( object.instanceMatrix, 34962 );

    			if ( object.instanceColor !== null ) {

    				attributes.update( object.instanceColor, 34962 );

    			}

    		}

    		return buffergeometry;

    	}

    	function dispose() {

    		updateMap = new WeakMap();

    	}

    	function onInstancedMeshDispose( event ) {

    		const instancedMesh = event.target;

    		instancedMesh.removeEventListener( 'dispose', onInstancedMeshDispose );

    		attributes.remove( instancedMesh.instanceMatrix );

    		if ( instancedMesh.instanceColor !== null ) attributes.remove( instancedMesh.instanceColor );

    	}

    	return {

    		update: update,
    		dispose: dispose

    	};

    }

    /**
     * Uniforms of a program.
     * Those form a tree structure with a special top-level container for the root,
     * which you get by calling 'new WebGLUniforms( gl, program )'.
     *
     *
     * Properties of inner nodes including the top-level container:
     *
     * .seq - array of nested uniforms
     * .map - nested uniforms by name
     *
     *
     * Methods of all nodes except the top-level container:
     *
     * .setValue( gl, value, [textures] )
     *
     * 		uploads a uniform value(s)
     *  	the 'textures' parameter is needed for sampler uniforms
     *
     *
     * Static methods of the top-level container (textures factorizations):
     *
     * .upload( gl, seq, values, textures )
     *
     * 		sets uniforms in 'seq' to 'values[id].value'
     *
     * .seqWithValue( seq, values ) : filteredSeq
     *
     * 		filters 'seq' entries with corresponding entry in values
     *
     *
     * Methods of the top-level container (textures factorizations):
     *
     * .setValue( gl, name, value, textures )
     *
     * 		sets uniform with  name 'name' to 'value'
     *
     * .setOptional( gl, obj, prop )
     *
     * 		like .set for an optional property of the object
     *
     */

    const emptyTexture = /*@__PURE__*/ new Texture();
    const emptyArrayTexture = /*@__PURE__*/ new DataArrayTexture();
    const empty3dTexture = /*@__PURE__*/ new Data3DTexture();
    const emptyCubeTexture = /*@__PURE__*/ new CubeTexture();

    // --- Utilities ---

    // Array Caches (provide typed arrays for temporary by size)

    const arrayCacheF32 = [];
    const arrayCacheI32 = [];

    // Float32Array caches used for uploading Matrix uniforms

    const mat4array = new Float32Array( 16 );
    const mat3array = new Float32Array( 9 );
    const mat2array = new Float32Array( 4 );

    // Flattening for arrays of vectors and matrices

    function flatten( array, nBlocks, blockSize ) {

    	const firstElem = array[ 0 ];

    	if ( firstElem <= 0 || firstElem > 0 ) return array;
    	// unoptimized: ! isNaN( firstElem )
    	// see http://jacksondunstan.com/articles/983

    	const n = nBlocks * blockSize;
    	let r = arrayCacheF32[ n ];

    	if ( r === undefined ) {

    		r = new Float32Array( n );
    		arrayCacheF32[ n ] = r;

    	}

    	if ( nBlocks !== 0 ) {

    		firstElem.toArray( r, 0 );

    		for ( let i = 1, offset = 0; i !== nBlocks; ++ i ) {

    			offset += blockSize;
    			array[ i ].toArray( r, offset );

    		}

    	}

    	return r;

    }

    function arraysEqual( a, b ) {

    	if ( a.length !== b.length ) return false;

    	for ( let i = 0, l = a.length; i < l; i ++ ) {

    		if ( a[ i ] !== b[ i ] ) return false;

    	}

    	return true;

    }

    function copyArray( a, b ) {

    	for ( let i = 0, l = b.length; i < l; i ++ ) {

    		a[ i ] = b[ i ];

    	}

    }

    // Texture unit allocation

    function allocTexUnits( textures, n ) {

    	let r = arrayCacheI32[ n ];

    	if ( r === undefined ) {

    		r = new Int32Array( n );
    		arrayCacheI32[ n ] = r;

    	}

    	for ( let i = 0; i !== n; ++ i ) {

    		r[ i ] = textures.allocateTextureUnit();

    	}

    	return r;

    }

    // --- Setters ---

    // Note: Defining these methods externally, because they come in a bunch
    // and this way their names minify.

    // Single scalar

    function setValueV1f( gl, v ) {

    	const cache = this.cache;

    	if ( cache[ 0 ] === v ) return;

    	gl.uniform1f( this.addr, v );

    	cache[ 0 ] = v;

    }

    // Single float vector (from flat array or THREE.VectorN)

    function setValueV2f( gl, v ) {

    	const cache = this.cache;

    	if ( v.x !== undefined ) {

    		if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) {

    			gl.uniform2f( this.addr, v.x, v.y );

    			cache[ 0 ] = v.x;
    			cache[ 1 ] = v.y;

    		}

    	} else {

    		if ( arraysEqual( cache, v ) ) return;

    		gl.uniform2fv( this.addr, v );

    		copyArray( cache, v );

    	}

    }

    function setValueV3f( gl, v ) {

    	const cache = this.cache;

    	if ( v.x !== undefined ) {

    		if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) {

    			gl.uniform3f( this.addr, v.x, v.y, v.z );

    			cache[ 0 ] = v.x;
    			cache[ 1 ] = v.y;
    			cache[ 2 ] = v.z;

    		}

    	} else if ( v.r !== undefined ) {

    		if ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) {

    			gl.uniform3f( this.addr, v.r, v.g, v.b );

    			cache[ 0 ] = v.r;
    			cache[ 1 ] = v.g;
    			cache[ 2 ] = v.b;

    		}

    	} else {

    		if ( arraysEqual( cache, v ) ) return;

    		gl.uniform3fv( this.addr, v );

    		copyArray( cache, v );

    	}

    }

    function setValueV4f( gl, v ) {

    	const cache = this.cache;

    	if ( v.x !== undefined ) {

    		if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) {

    			gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );

    			cache[ 0 ] = v.x;
    			cache[ 1 ] = v.y;
    			cache[ 2 ] = v.z;
    			cache[ 3 ] = v.w;

    		}

    	} else {

    		if ( arraysEqual( cache, v ) ) return;

    		gl.uniform4fv( this.addr, v );

    		copyArray( cache, v );

    	}

    }

    // Single matrix (from flat array or THREE.MatrixN)

    function setValueM2( gl, v ) {

    	const cache = this.cache;
    	const elements = v.elements;

    	if ( elements === undefined ) {

    		if ( arraysEqual( cache, v ) ) return;

    		gl.uniformMatrix2fv( this.addr, false, v );

    		copyArray( cache, v );

    	} else {

    		if ( arraysEqual( cache, elements ) ) return;

    		mat2array.set( elements );

    		gl.uniformMatrix2fv( this.addr, false, mat2array );

    		copyArray( cache, elements );

    	}

    }

    function setValueM3( gl, v ) {

    	const cache = this.cache;
    	const elements = v.elements;

    	if ( elements === undefined ) {

    		if ( arraysEqual( cache, v ) ) return;

    		gl.uniformMatrix3fv( this.addr, false, v );

    		copyArray( cache, v );

    	} else {

    		if ( arraysEqual( cache, elements ) ) return;

    		mat3array.set( elements );

    		gl.uniformMatrix3fv( this.addr, false, mat3array );

    		copyArray( cache, elements );

    	}

    }

    function setValueM4( gl, v ) {

    	const cache = this.cache;
    	const elements = v.elements;

    	if ( elements === undefined ) {

    		if ( arraysEqual( cache, v ) ) return;

    		gl.uniformMatrix4fv( this.addr, false, v );

    		copyArray( cache, v );

    	} else {

    		if ( arraysEqual( cache, elements ) ) return;

    		mat4array.set( elements );

    		gl.uniformMatrix4fv( this.addr, false, mat4array );

    		copyArray( cache, elements );

    	}

    }

    // Single integer / boolean

    function setValueV1i( gl, v ) {

    	const cache = this.cache;

    	if ( cache[ 0 ] === v ) return;

    	gl.uniform1i( this.addr, v );

    	cache[ 0 ] = v;

    }

    // Single integer / boolean vector (from flat array)

    function setValueV2i( gl, v ) {

    	const cache = this.cache;

    	if ( arraysEqual( cache, v ) ) return;

    	gl.uniform2iv( this.addr, v );

    	copyArray( cache, v );

    }

    function setValueV3i( gl, v ) {

    	const cache = this.cache;

    	if ( arraysEqual( cache, v ) ) return;

    	gl.uniform3iv( this.addr, v );

    	copyArray( cache, v );

    }

    function setValueV4i( gl, v ) {

    	const cache = this.cache;

    	if ( arraysEqual( cache, v ) ) return;

    	gl.uniform4iv( this.addr, v );

    	copyArray( cache, v );

    }

    // Single unsigned integer

    function setValueV1ui( gl, v ) {

    	const cache = this.cache;

    	if ( cache[ 0 ] === v ) return;

    	gl.uniform1ui( this.addr, v );

    	cache[ 0 ] = v;

    }

    // Single unsigned integer vector (from flat array)

    function setValueV2ui( gl, v ) {

    	const cache = this.cache;

    	if ( arraysEqual( cache, v ) ) return;

    	gl.uniform2uiv( this.addr, v );

    	copyArray( cache, v );

    }

    function setValueV3ui( gl, v ) {

    	const cache = this.cache;

    	if ( arraysEqual( cache, v ) ) return;

    	gl.uniform3uiv( this.addr, v );

    	copyArray( cache, v );

    }

    function setValueV4ui( gl, v ) {

    	const cache = this.cache;

    	if ( arraysEqual( cache, v ) ) return;

    	gl.uniform4uiv( this.addr, v );

    	copyArray( cache, v );

    }


    // Single texture (2D / Cube)

    function setValueT1( gl, v, textures ) {

    	const cache = this.cache;
    	const unit = textures.allocateTextureUnit();

    	if ( cache[ 0 ] !== unit ) {

    		gl.uniform1i( this.addr, unit );
    		cache[ 0 ] = unit;

    	}

    	textures.setTexture2D( v || emptyTexture, unit );

    }

    function setValueT3D1( gl, v, textures ) {

    	const cache = this.cache;
    	const unit = textures.allocateTextureUnit();

    	if ( cache[ 0 ] !== unit ) {

    		gl.uniform1i( this.addr, unit );
    		cache[ 0 ] = unit;

    	}

    	textures.setTexture3D( v || empty3dTexture, unit );

    }

    function setValueT6( gl, v, textures ) {

    	const cache = this.cache;
    	const unit = textures.allocateTextureUnit();

    	if ( cache[ 0 ] !== unit ) {

    		gl.uniform1i( this.addr, unit );
    		cache[ 0 ] = unit;

    	}

    	textures.setTextureCube( v || emptyCubeTexture, unit );

    }

    function setValueT2DArray1( gl, v, textures ) {

    	const cache = this.cache;
    	const unit = textures.allocateTextureUnit();

    	if ( cache[ 0 ] !== unit ) {

    		gl.uniform1i( this.addr, unit );
    		cache[ 0 ] = unit;

    	}

    	textures.setTexture2DArray( v || emptyArrayTexture, unit );

    }

    // Helper to pick the right setter for the singular case

    function getSingularSetter( type ) {

    	switch ( type ) {

    		case 0x1406: return setValueV1f; // FLOAT
    		case 0x8b50: return setValueV2f; // _VEC2
    		case 0x8b51: return setValueV3f; // _VEC3
    		case 0x8b52: return setValueV4f; // _VEC4

    		case 0x8b5a: return setValueM2; // _MAT2
    		case 0x8b5b: return setValueM3; // _MAT3
    		case 0x8b5c: return setValueM4; // _MAT4

    		case 0x1404: case 0x8b56: return setValueV1i; // INT, BOOL
    		case 0x8b53: case 0x8b57: return setValueV2i; // _VEC2
    		case 0x8b54: case 0x8b58: return setValueV3i; // _VEC3
    		case 0x8b55: case 0x8b59: return setValueV4i; // _VEC4

    		case 0x1405: return setValueV1ui; // UINT
    		case 0x8dc6: return setValueV2ui; // _VEC2
    		case 0x8dc7: return setValueV3ui; // _VEC3
    		case 0x8dc8: return setValueV4ui; // _VEC4

    		case 0x8b5e: // SAMPLER_2D
    		case 0x8d66: // SAMPLER_EXTERNAL_OES
    		case 0x8dca: // INT_SAMPLER_2D
    		case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D
    		case 0x8b62: // SAMPLER_2D_SHADOW
    			return setValueT1;

    		case 0x8b5f: // SAMPLER_3D
    		case 0x8dcb: // INT_SAMPLER_3D
    		case 0x8dd3: // UNSIGNED_INT_SAMPLER_3D
    			return setValueT3D1;

    		case 0x8b60: // SAMPLER_CUBE
    		case 0x8dcc: // INT_SAMPLER_CUBE
    		case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE
    		case 0x8dc5: // SAMPLER_CUBE_SHADOW
    			return setValueT6;

    		case 0x8dc1: // SAMPLER_2D_ARRAY
    		case 0x8dcf: // INT_SAMPLER_2D_ARRAY
    		case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY
    		case 0x8dc4: // SAMPLER_2D_ARRAY_SHADOW
    			return setValueT2DArray1;

    	}

    }


    // Array of scalars

    function setValueV1fArray( gl, v ) {

    	gl.uniform1fv( this.addr, v );

    }

    // Array of vectors (from flat array or array of THREE.VectorN)

    function setValueV2fArray( gl, v ) {

    	const data = flatten( v, this.size, 2 );

    	gl.uniform2fv( this.addr, data );

    }

    function setValueV3fArray( gl, v ) {

    	const data = flatten( v, this.size, 3 );

    	gl.uniform3fv( this.addr, data );

    }

    function setValueV4fArray( gl, v ) {

    	const data = flatten( v, this.size, 4 );

    	gl.uniform4fv( this.addr, data );

    }

    // Array of matrices (from flat array or array of THREE.MatrixN)

    function setValueM2Array( gl, v ) {

    	const data = flatten( v, this.size, 4 );

    	gl.uniformMatrix2fv( this.addr, false, data );

    }

    function setValueM3Array( gl, v ) {

    	const data = flatten( v, this.size, 9 );

    	gl.uniformMatrix3fv( this.addr, false, data );

    }

    function setValueM4Array( gl, v ) {

    	const data = flatten( v, this.size, 16 );

    	gl.uniformMatrix4fv( this.addr, false, data );

    }

    // Array of integer / boolean

    function setValueV1iArray( gl, v ) {

    	gl.uniform1iv( this.addr, v );

    }

    // Array of integer / boolean vectors (from flat array)

    function setValueV2iArray( gl, v ) {

    	gl.uniform2iv( this.addr, v );

    }

    function setValueV3iArray( gl, v ) {

    	gl.uniform3iv( this.addr, v );

    }

    function setValueV4iArray( gl, v ) {

    	gl.uniform4iv( this.addr, v );

    }

    // Array of unsigned integer

    function setValueV1uiArray( gl, v ) {

    	gl.uniform1uiv( this.addr, v );

    }

    // Array of unsigned integer vectors (from flat array)

    function setValueV2uiArray( gl, v ) {

    	gl.uniform2uiv( this.addr, v );

    }

    function setValueV3uiArray( gl, v ) {

    	gl.uniform3uiv( this.addr, v );

    }

    function setValueV4uiArray( gl, v ) {

    	gl.uniform4uiv( this.addr, v );

    }


    // Array of textures (2D / 3D / Cube / 2DArray)

    function setValueT1Array( gl, v, textures ) {

    	const cache = this.cache;

    	const n = v.length;

    	const units = allocTexUnits( textures, n );

    	if ( ! arraysEqual( cache, units ) ) {

    		gl.uniform1iv( this.addr, units );

    		copyArray( cache, units );

    	}

    	for ( let i = 0; i !== n; ++ i ) {

    		textures.setTexture2D( v[ i ] || emptyTexture, units[ i ] );

    	}

    }

    function setValueT3DArray( gl, v, textures ) {

    	const cache = this.cache;

    	const n = v.length;

    	const units = allocTexUnits( textures, n );

    	if ( ! arraysEqual( cache, units ) ) {

    		gl.uniform1iv( this.addr, units );

    		copyArray( cache, units );

    	}

    	for ( let i = 0; i !== n; ++ i ) {

    		textures.setTexture3D( v[ i ] || empty3dTexture, units[ i ] );

    	}

    }

    function setValueT6Array( gl, v, textures ) {

    	const cache = this.cache;

    	const n = v.length;

    	const units = allocTexUnits( textures, n );

    	if ( ! arraysEqual( cache, units ) ) {

    		gl.uniform1iv( this.addr, units );

    		copyArray( cache, units );

    	}

    	for ( let i = 0; i !== n; ++ i ) {

    		textures.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );

    	}

    }

    function setValueT2DArrayArray( gl, v, textures ) {

    	const cache = this.cache;

    	const n = v.length;

    	const units = allocTexUnits( textures, n );

    	if ( ! arraysEqual( cache, units ) ) {

    		gl.uniform1iv( this.addr, units );

    		copyArray( cache, units );

    	}

    	for ( let i = 0; i !== n; ++ i ) {

    		textures.setTexture2DArray( v[ i ] || emptyArrayTexture, units[ i ] );

    	}

    }


    // Helper to pick the right setter for a pure (bottom-level) array

    function getPureArraySetter( type ) {

    	switch ( type ) {

    		case 0x1406: return setValueV1fArray; // FLOAT
    		case 0x8b50: return setValueV2fArray; // _VEC2
    		case 0x8b51: return setValueV3fArray; // _VEC3
    		case 0x8b52: return setValueV4fArray; // _VEC4

    		case 0x8b5a: return setValueM2Array; // _MAT2
    		case 0x8b5b: return setValueM3Array; // _MAT3
    		case 0x8b5c: return setValueM4Array; // _MAT4

    		case 0x1404: case 0x8b56: return setValueV1iArray; // INT, BOOL
    		case 0x8b53: case 0x8b57: return setValueV2iArray; // _VEC2
    		case 0x8b54: case 0x8b58: return setValueV3iArray; // _VEC3
    		case 0x8b55: case 0x8b59: return setValueV4iArray; // _VEC4

    		case 0x1405: return setValueV1uiArray; // UINT
    		case 0x8dc6: return setValueV2uiArray; // _VEC2
    		case 0x8dc7: return setValueV3uiArray; // _VEC3
    		case 0x8dc8: return setValueV4uiArray; // _VEC4

    		case 0x8b5e: // SAMPLER_2D
    		case 0x8d66: // SAMPLER_EXTERNAL_OES
    		case 0x8dca: // INT_SAMPLER_2D
    		case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D
    		case 0x8b62: // SAMPLER_2D_SHADOW
    			return setValueT1Array;

    		case 0x8b5f: // SAMPLER_3D
    		case 0x8dcb: // INT_SAMPLER_3D
    		case 0x8dd3: // UNSIGNED_INT_SAMPLER_3D
    			return setValueT3DArray;

    		case 0x8b60: // SAMPLER_CUBE
    		case 0x8dcc: // INT_SAMPLER_CUBE
    		case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE
    		case 0x8dc5: // SAMPLER_CUBE_SHADOW
    			return setValueT6Array;

    		case 0x8dc1: // SAMPLER_2D_ARRAY
    		case 0x8dcf: // INT_SAMPLER_2D_ARRAY
    		case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY
    		case 0x8dc4: // SAMPLER_2D_ARRAY_SHADOW
    			return setValueT2DArrayArray;

    	}

    }

    // --- Uniform Classes ---

    class SingleUniform {

    	constructor( id, activeInfo, addr ) {

    		this.id = id;
    		this.addr = addr;
    		this.cache = [];
    		this.setValue = getSingularSetter( activeInfo.type );

    		// this.path = activeInfo.name; // DEBUG

    	}

    }

    class PureArrayUniform {

    	constructor( id, activeInfo, addr ) {

    		this.id = id;
    		this.addr = addr;
    		this.cache = [];
    		this.size = activeInfo.size;
    		this.setValue = getPureArraySetter( activeInfo.type );

    		// this.path = activeInfo.name; // DEBUG

    	}

    }

    class StructuredUniform {

    	constructor( id ) {

    		this.id = id;

    		this.seq = [];
    		this.map = {};

    	}

    	setValue( gl, value, textures ) {

    		const seq = this.seq;

    		for ( let i = 0, n = seq.length; i !== n; ++ i ) {

    			const u = seq[ i ];
    			u.setValue( gl, value[ u.id ], textures );

    		}

    	}

    }

    // --- Top-level ---

    // Parser - builds up the property tree from the path strings

    const RePathPart = /(\w+)(\])?(\[|\.)?/g;

    // extracts
    // 	- the identifier (member name or array index)
    //  - followed by an optional right bracket (found when array index)
    //  - followed by an optional left bracket or dot (type of subscript)
    //
    // Note: These portions can be read in a non-overlapping fashion and
    // allow straightforward parsing of the hierarchy that WebGL encodes
    // in the uniform names.

    function addUniform( container, uniformObject ) {

    	container.seq.push( uniformObject );
    	container.map[ uniformObject.id ] = uniformObject;

    }

    function parseUniform( activeInfo, addr, container ) {

    	const path = activeInfo.name,
    		pathLength = path.length;

    	// reset RegExp object, because of the early exit of a previous run
    	RePathPart.lastIndex = 0;

    	while ( true ) {

    		const match = RePathPart.exec( path ),
    			matchEnd = RePathPart.lastIndex;

    		let id = match[ 1 ];
    		const idIsIndex = match[ 2 ] === ']',
    			subscript = match[ 3 ];

    		if ( idIsIndex ) id = id | 0; // convert to integer

    		if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {

    			// bare name or "pure" bottom-level array "[0]" suffix

    			addUniform( container, subscript === undefined ?
    				new SingleUniform( id, activeInfo, addr ) :
    				new PureArrayUniform( id, activeInfo, addr ) );

    			break;

    		} else {

    			// step into inner node / create it in case it doesn't exist

    			const map = container.map;
    			let next = map[ id ];

    			if ( next === undefined ) {

    				next = new StructuredUniform( id );
    				addUniform( container, next );

    			}

    			container = next;

    		}

    	}

    }

    // Root Container

    class WebGLUniforms {

    	constructor( gl, program ) {

    		this.seq = [];
    		this.map = {};

    		const n = gl.getProgramParameter( program, 35718 );

    		for ( let i = 0; i < n; ++ i ) {

    			const info = gl.getActiveUniform( program, i ),
    				addr = gl.getUniformLocation( program, info.name );

    			parseUniform( info, addr, this );

    		}

    	}

    	setValue( gl, name, value, textures ) {

    		const u = this.map[ name ];

    		if ( u !== undefined ) u.setValue( gl, value, textures );

    	}

    	setOptional( gl, object, name ) {

    		const v = object[ name ];

    		if ( v !== undefined ) this.setValue( gl, name, v );

    	}

    	static upload( gl, seq, values, textures ) {

    		for ( let i = 0, n = seq.length; i !== n; ++ i ) {

    			const u = seq[ i ],
    				v = values[ u.id ];

    			if ( v.needsUpdate !== false ) {

    				// note: always updating when .needsUpdate is undefined
    				u.setValue( gl, v.value, textures );

    			}

    		}

    	}

    	static seqWithValue( seq, values ) {

    		const r = [];

    		for ( let i = 0, n = seq.length; i !== n; ++ i ) {

    			const u = seq[ i ];
    			if ( u.id in values ) r.push( u );

    		}

    		return r;

    	}

    }

    function WebGLShader( gl, type, string ) {

    	const shader = gl.createShader( type );

    	gl.shaderSource( shader, string );
    	gl.compileShader( shader );

    	return shader;

    }

    let programIdCount = 0;

    function handleSource( string, errorLine ) {

    	const lines = string.split( '\n' );
    	const lines2 = [];

    	const from = Math.max( errorLine - 6, 0 );
    	const to = Math.min( errorLine + 6, lines.length );

    	for ( let i = from; i < to; i ++ ) {

    		const line = i + 1;
    		lines2.push( `${line === errorLine ? '>' : ' '} ${line}: ${lines[ i ]}` );

    	}

    	return lines2.join( '\n' );

    }

    function getEncodingComponents( encoding ) {

    	switch ( encoding ) {

    		case LinearEncoding:
    			return [ 'Linear', '( value )' ];
    		case sRGBEncoding:
    			return [ 'sRGB', '( value )' ];
    		default:
    			console.warn( 'THREE.WebGLProgram: Unsupported encoding:', encoding );
    			return [ 'Linear', '( value )' ];

    	}

    }

    function getShaderErrors( gl, shader, type ) {

    	const status = gl.getShaderParameter( shader, 35713 );
    	const errors = gl.getShaderInfoLog( shader ).trim();

    	if ( status && errors === '' ) return '';

    	const errorMatches = /ERROR: 0:(\d+)/.exec( errors );
    	if ( errorMatches ) {

    		// --enable-privileged-webgl-extension
    		// console.log( '**' + type + '**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );

    		const errorLine = parseInt( errorMatches[ 1 ] );
    		return type.toUpperCase() + '\n\n' + errors + '\n\n' + handleSource( gl.getShaderSource( shader ), errorLine );

    	} else {

    		return errors;

    	}

    }

    function getTexelEncodingFunction( functionName, encoding ) {

    	const components = getEncodingComponents( encoding );
    	return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }';

    }

    function getToneMappingFunction( functionName, toneMapping ) {

    	let toneMappingName;

    	switch ( toneMapping ) {

    		case LinearToneMapping:
    			toneMappingName = 'Linear';
    			break;

    		case ReinhardToneMapping:
    			toneMappingName = 'Reinhard';
    			break;

    		case CineonToneMapping:
    			toneMappingName = 'OptimizedCineon';
    			break;

    		case ACESFilmicToneMapping:
    			toneMappingName = 'ACESFilmic';
    			break;

    		case CustomToneMapping:
    			toneMappingName = 'Custom';
    			break;

    		default:
    			console.warn( 'THREE.WebGLProgram: Unsupported toneMapping:', toneMapping );
    			toneMappingName = 'Linear';

    	}

    	return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';

    }

    function generateExtensions( parameters ) {

    	const chunks = [
    		( parameters.extensionDerivatives || !! parameters.envMapCubeUVHeight || parameters.bumpMap || parameters.tangentSpaceNormalMap || parameters.clearcoatNormalMap || parameters.flatShading || parameters.shaderID === 'physical' ) ? '#extension GL_OES_standard_derivatives : enable' : '',
    		( parameters.extensionFragDepth || parameters.logarithmicDepthBuffer ) && parameters.rendererExtensionFragDepth ? '#extension GL_EXT_frag_depth : enable' : '',
    		( parameters.extensionDrawBuffers && parameters.rendererExtensionDrawBuffers ) ? '#extension GL_EXT_draw_buffers : require' : '',
    		( parameters.extensionShaderTextureLOD || parameters.envMap || parameters.transmission ) && parameters.rendererExtensionShaderTextureLod ? '#extension GL_EXT_shader_texture_lod : enable' : ''
    	];

    	return chunks.filter( filterEmptyLine ).join( '\n' );

    }

    function generateDefines( defines ) {

    	const chunks = [];

    	for ( const name in defines ) {

    		const value = defines[ name ];

    		if ( value === false ) continue;

    		chunks.push( '#define ' + name + ' ' + value );

    	}

    	return chunks.join( '\n' );

    }

    function fetchAttributeLocations( gl, program ) {

    	const attributes = {};

    	const n = gl.getProgramParameter( program, 35721 );

    	for ( let i = 0; i < n; i ++ ) {

    		const info = gl.getActiveAttrib( program, i );
    		const name = info.name;

    		let locationSize = 1;
    		if ( info.type === 35674 ) locationSize = 2;
    		if ( info.type === 35675 ) locationSize = 3;
    		if ( info.type === 35676 ) locationSize = 4;

    		// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );

    		attributes[ name ] = {
    			type: info.type,
    			location: gl.getAttribLocation( program, name ),
    			locationSize: locationSize
    		};

    	}

    	return attributes;

    }

    function filterEmptyLine( string ) {

    	return string !== '';

    }

    function replaceLightNums( string, parameters ) {

    	const numSpotLightCoords = parameters.numSpotLightShadows + parameters.numSpotLightMaps - parameters.numSpotLightShadowsWithMaps;

    	return string
    		.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )
    		.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )
    		.replace( /NUM_SPOT_LIGHT_MAPS/g, parameters.numSpotLightMaps )
    		.replace( /NUM_SPOT_LIGHT_COORDS/g, numSpotLightCoords )
    		.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )
    		.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )
    		.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights )
    		.replace( /NUM_DIR_LIGHT_SHADOWS/g, parameters.numDirLightShadows )
    		.replace( /NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS/g, parameters.numSpotLightShadowsWithMaps )
    		.replace( /NUM_SPOT_LIGHT_SHADOWS/g, parameters.numSpotLightShadows )
    		.replace( /NUM_POINT_LIGHT_SHADOWS/g, parameters.numPointLightShadows );

    }

    function replaceClippingPlaneNums( string, parameters ) {

    	return string
    		.replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes )
    		.replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) );

    }

    // Resolve Includes

    const includePattern = /^[ \t]*#include +<([\w\d./]+)>/gm;

    function resolveIncludes( string ) {

    	return string.replace( includePattern, includeReplacer );

    }

    function includeReplacer( match, include ) {

    	const string = ShaderChunk[ include ];

    	if ( string === undefined ) {

    		throw new Error( 'Can not resolve #include <' + include + '>' );

    	}

    	return resolveIncludes( string );

    }

    // Unroll Loops

    const unrollLoopPattern = /#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g;

    function unrollLoops( string ) {

    	return string.replace( unrollLoopPattern, loopReplacer );

    }

    function loopReplacer( match, start, end, snippet ) {

    	let string = '';

    	for ( let i = parseInt( start ); i < parseInt( end ); i ++ ) {

    		string += snippet
    			.replace( /\[\s*i\s*\]/g, '[ ' + i + ' ]' )
    			.replace( /UNROLLED_LOOP_INDEX/g, i );

    	}

    	return string;

    }

    //

    function generatePrecision( parameters ) {

    	let precisionstring = 'precision ' + parameters.precision + ' float;\nprecision ' + parameters.precision + ' int;';

    	if ( parameters.precision === 'highp' ) {

    		precisionstring += '\n#define HIGH_PRECISION';

    	} else if ( parameters.precision === 'mediump' ) {

    		precisionstring += '\n#define MEDIUM_PRECISION';

    	} else if ( parameters.precision === 'lowp' ) {

    		precisionstring += '\n#define LOW_PRECISION';

    	}

    	return precisionstring;

    }

    function generateShadowMapTypeDefine( parameters ) {

    	let shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';

    	if ( parameters.shadowMapType === PCFShadowMap ) {

    		shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';

    	} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {

    		shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';

    	} else if ( parameters.shadowMapType === VSMShadowMap ) {

    		shadowMapTypeDefine = 'SHADOWMAP_TYPE_VSM';

    	}

    	return shadowMapTypeDefine;

    }

    function generateEnvMapTypeDefine( parameters ) {

    	let envMapTypeDefine = 'ENVMAP_TYPE_CUBE';

    	if ( parameters.envMap ) {

    		switch ( parameters.envMapMode ) {

    			case CubeReflectionMapping:
    			case CubeRefractionMapping:
    				envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
    				break;

    			case CubeUVReflectionMapping:
    				envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
    				break;

    		}

    	}

    	return envMapTypeDefine;

    }

    function generateEnvMapModeDefine( parameters ) {

    	let envMapModeDefine = 'ENVMAP_MODE_REFLECTION';

    	if ( parameters.envMap ) {

    		switch ( parameters.envMapMode ) {

    			case CubeRefractionMapping:

    				envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
    				break;

    		}

    	}

    	return envMapModeDefine;

    }

    function generateEnvMapBlendingDefine( parameters ) {

    	let envMapBlendingDefine = 'ENVMAP_BLENDING_NONE';

    	if ( parameters.envMap ) {

    		switch ( parameters.combine ) {

    			case MultiplyOperation:
    				envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
    				break;

    			case MixOperation:
    				envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
    				break;

    			case AddOperation:
    				envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
    				break;

    		}

    	}

    	return envMapBlendingDefine;

    }

    function generateCubeUVSize( parameters ) {

    	const imageHeight = parameters.envMapCubeUVHeight;

    	if ( imageHeight === null ) return null;

    	const maxMip = Math.log2( imageHeight ) - 2;

    	const texelHeight = 1.0 / imageHeight;

    	const texelWidth = 1.0 / ( 3 * Math.max( Math.pow( 2, maxMip ), 7 * 16 ) );

    	return { texelWidth, texelHeight, maxMip };

    }

    function WebGLProgram( renderer, cacheKey, parameters, bindingStates ) {

    	// TODO Send this event to Three.js DevTools
    	// console.log( 'WebGLProgram', cacheKey );

    	const gl = renderer.getContext();

    	const defines = parameters.defines;

    	let vertexShader = parameters.vertexShader;
    	let fragmentShader = parameters.fragmentShader;

    	const shadowMapTypeDefine = generateShadowMapTypeDefine( parameters );
    	const envMapTypeDefine = generateEnvMapTypeDefine( parameters );
    	const envMapModeDefine = generateEnvMapModeDefine( parameters );
    	const envMapBlendingDefine = generateEnvMapBlendingDefine( parameters );
    	const envMapCubeUVSize = generateCubeUVSize( parameters );

    	const customExtensions = parameters.isWebGL2 ? '' : generateExtensions( parameters );

    	const customDefines = generateDefines( defines );

    	const program = gl.createProgram();

    	let prefixVertex, prefixFragment;
    	let versionString = parameters.glslVersion ? '#version ' + parameters.glslVersion + '\n' : '';

    	if ( parameters.isRawShaderMaterial ) {

    		prefixVertex = [

    			customDefines

    		].filter( filterEmptyLine ).join( '\n' );

    		if ( prefixVertex.length > 0 ) {

    			prefixVertex += '\n';

    		}

    		prefixFragment = [

    			customExtensions,
    			customDefines

    		].filter( filterEmptyLine ).join( '\n' );

    		if ( prefixFragment.length > 0 ) {

    			prefixFragment += '\n';

    		}

    	} else {

    		prefixVertex = [

    			generatePrecision( parameters ),

    			'#define SHADER_NAME ' + parameters.shaderName,

    			customDefines,

    			parameters.instancing ? '#define USE_INSTANCING' : '',
    			parameters.instancingColor ? '#define USE_INSTANCING_COLOR' : '',

    			parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',

    			( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
    			( parameters.useFog && parameters.fogExp2 ) ? '#define FOG_EXP2' : '',

    			parameters.map ? '#define USE_MAP' : '',
    			parameters.envMap ? '#define USE_ENVMAP' : '',
    			parameters.envMap ? '#define ' + envMapModeDefine : '',
    			parameters.lightMap ? '#define USE_LIGHTMAP' : '',
    			parameters.aoMap ? '#define USE_AOMAP' : '',
    			parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
    			parameters.bumpMap ? '#define USE_BUMPMAP' : '',
    			parameters.normalMap ? '#define USE_NORMALMAP' : '',
    			( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
    			( parameters.normalMap && parameters.tangentSpaceNormalMap ) ? '#define TANGENTSPACE_NORMALMAP' : '',

    			parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '',
    			parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '',
    			parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '',

    			parameters.iridescenceMap ? '#define USE_IRIDESCENCEMAP' : '',
    			parameters.iridescenceThicknessMap ? '#define USE_IRIDESCENCE_THICKNESSMAP' : '',

    			parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',

    			parameters.specularMap ? '#define USE_SPECULARMAP' : '',
    			parameters.specularIntensityMap ? '#define USE_SPECULARINTENSITYMAP' : '',
    			parameters.specularColorMap ? '#define USE_SPECULARCOLORMAP' : '',

    			parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
    			parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
    			parameters.alphaMap ? '#define USE_ALPHAMAP' : '',

    			parameters.transmission ? '#define USE_TRANSMISSION' : '',
    			parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '',
    			parameters.thicknessMap ? '#define USE_THICKNESSMAP' : '',

    			parameters.sheenColorMap ? '#define USE_SHEENCOLORMAP' : '',
    			parameters.sheenRoughnessMap ? '#define USE_SHEENROUGHNESSMAP' : '',

    			parameters.vertexTangents ? '#define USE_TANGENT' : '',
    			parameters.vertexColors ? '#define USE_COLOR' : '',
    			parameters.vertexAlphas ? '#define USE_COLOR_ALPHA' : '',
    			parameters.vertexUvs ? '#define USE_UV' : '',
    			parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '',

    			parameters.flatShading ? '#define FLAT_SHADED' : '',

    			parameters.skinning ? '#define USE_SKINNING' : '',

    			parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
    			parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
    			( parameters.morphColors && parameters.isWebGL2 ) ? '#define USE_MORPHCOLORS' : '',
    			( parameters.morphTargetsCount > 0 && parameters.isWebGL2 ) ? '#define MORPHTARGETS_TEXTURE' : '',
    			( parameters.morphTargetsCount > 0 && parameters.isWebGL2 ) ? '#define MORPHTARGETS_TEXTURE_STRIDE ' + parameters.morphTextureStride : '',
    			( parameters.morphTargetsCount > 0 && parameters.isWebGL2 ) ? '#define MORPHTARGETS_COUNT ' + parameters.morphTargetsCount : '',
    			parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
    			parameters.flipSided ? '#define FLIP_SIDED' : '',

    			parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
    			parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',

    			parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',

    			parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
    			( parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

    			'uniform mat4 modelMatrix;',
    			'uniform mat4 modelViewMatrix;',
    			'uniform mat4 projectionMatrix;',
    			'uniform mat4 viewMatrix;',
    			'uniform mat3 normalMatrix;',
    			'uniform vec3 cameraPosition;',
    			'uniform bool isOrthographic;',

    			'#ifdef USE_INSTANCING',

    			'	attribute mat4 instanceMatrix;',

    			'#endif',

    			'#ifdef USE_INSTANCING_COLOR',

    			'	attribute vec3 instanceColor;',

    			'#endif',

    			'attribute vec3 position;',
    			'attribute vec3 normal;',
    			'attribute vec2 uv;',

    			'#ifdef USE_TANGENT',

    			'	attribute vec4 tangent;',

    			'#endif',

    			'#if defined( USE_COLOR_ALPHA )',

    			'	attribute vec4 color;',

    			'#elif defined( USE_COLOR )',

    			'	attribute vec3 color;',

    			'#endif',

    			'#if ( defined( USE_MORPHTARGETS ) && ! defined( MORPHTARGETS_TEXTURE ) )',

    			'	attribute vec3 morphTarget0;',
    			'	attribute vec3 morphTarget1;',
    			'	attribute vec3 morphTarget2;',
    			'	attribute vec3 morphTarget3;',

    			'	#ifdef USE_MORPHNORMALS',

    			'		attribute vec3 morphNormal0;',
    			'		attribute vec3 morphNormal1;',
    			'		attribute vec3 morphNormal2;',
    			'		attribute vec3 morphNormal3;',

    			'	#else',

    			'		attribute vec3 morphTarget4;',
    			'		attribute vec3 morphTarget5;',
    			'		attribute vec3 morphTarget6;',
    			'		attribute vec3 morphTarget7;',

    			'	#endif',

    			'#endif',

    			'#ifdef USE_SKINNING',

    			'	attribute vec4 skinIndex;',
    			'	attribute vec4 skinWeight;',

    			'#endif',

    			'\n'

    		].filter( filterEmptyLine ).join( '\n' );

    		prefixFragment = [

    			customExtensions,

    			generatePrecision( parameters ),

    			'#define SHADER_NAME ' + parameters.shaderName,

    			customDefines,

    			( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
    			( parameters.useFog && parameters.fogExp2 ) ? '#define FOG_EXP2' : '',

    			parameters.map ? '#define USE_MAP' : '',
    			parameters.matcap ? '#define USE_MATCAP' : '',
    			parameters.envMap ? '#define USE_ENVMAP' : '',
    			parameters.envMap ? '#define ' + envMapTypeDefine : '',
    			parameters.envMap ? '#define ' + envMapModeDefine : '',
    			parameters.envMap ? '#define ' + envMapBlendingDefine : '',
    			envMapCubeUVSize ? '#define CUBEUV_TEXEL_WIDTH ' + envMapCubeUVSize.texelWidth : '',
    			envMapCubeUVSize ? '#define CUBEUV_TEXEL_HEIGHT ' + envMapCubeUVSize.texelHeight : '',
    			envMapCubeUVSize ? '#define CUBEUV_MAX_MIP ' + envMapCubeUVSize.maxMip + '.0' : '',
    			parameters.lightMap ? '#define USE_LIGHTMAP' : '',
    			parameters.aoMap ? '#define USE_AOMAP' : '',
    			parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
    			parameters.bumpMap ? '#define USE_BUMPMAP' : '',
    			parameters.normalMap ? '#define USE_NORMALMAP' : '',
    			( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
    			( parameters.normalMap && parameters.tangentSpaceNormalMap ) ? '#define TANGENTSPACE_NORMALMAP' : '',

    			parameters.clearcoat ? '#define USE_CLEARCOAT' : '',
    			parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '',
    			parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '',
    			parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '',

    			parameters.iridescence ? '#define USE_IRIDESCENCE' : '',
    			parameters.iridescenceMap ? '#define USE_IRIDESCENCEMAP' : '',
    			parameters.iridescenceThicknessMap ? '#define USE_IRIDESCENCE_THICKNESSMAP' : '',

    			parameters.specularMap ? '#define USE_SPECULARMAP' : '',
    			parameters.specularIntensityMap ? '#define USE_SPECULARINTENSITYMAP' : '',
    			parameters.specularColorMap ? '#define USE_SPECULARCOLORMAP' : '',
    			parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
    			parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',

    			parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
    			parameters.alphaTest ? '#define USE_ALPHATEST' : '',

    			parameters.sheen ? '#define USE_SHEEN' : '',
    			parameters.sheenColorMap ? '#define USE_SHEENCOLORMAP' : '',
    			parameters.sheenRoughnessMap ? '#define USE_SHEENROUGHNESSMAP' : '',

    			parameters.transmission ? '#define USE_TRANSMISSION' : '',
    			parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '',
    			parameters.thicknessMap ? '#define USE_THICKNESSMAP' : '',

    			parameters.decodeVideoTexture ? '#define DECODE_VIDEO_TEXTURE' : '',

    			parameters.vertexTangents ? '#define USE_TANGENT' : '',
    			parameters.vertexColors || parameters.instancingColor ? '#define USE_COLOR' : '',
    			parameters.vertexAlphas ? '#define USE_COLOR_ALPHA' : '',
    			parameters.vertexUvs ? '#define USE_UV' : '',
    			parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '',

    			parameters.gradientMap ? '#define USE_GRADIENTMAP' : '',

    			parameters.flatShading ? '#define FLAT_SHADED' : '',

    			parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
    			parameters.flipSided ? '#define FLIP_SIDED' : '',

    			parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
    			parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',

    			parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '',

    			parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '',

    			parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
    			( parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

    			'uniform mat4 viewMatrix;',
    			'uniform vec3 cameraPosition;',
    			'uniform bool isOrthographic;',

    			( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '',
    			( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below
    			( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '',

    			parameters.dithering ? '#define DITHERING' : '',
    			parameters.opaque ? '#define OPAQUE' : '',

    			ShaderChunk[ 'encodings_pars_fragment' ], // this code is required here because it is used by the various encoding/decoding function defined below
    			getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ),

    			parameters.useDepthPacking ? '#define DEPTH_PACKING ' + parameters.depthPacking : '',

    			'\n'

    		].filter( filterEmptyLine ).join( '\n' );

    	}

    	vertexShader = resolveIncludes( vertexShader );
    	vertexShader = replaceLightNums( vertexShader, parameters );
    	vertexShader = replaceClippingPlaneNums( vertexShader, parameters );

    	fragmentShader = resolveIncludes( fragmentShader );
    	fragmentShader = replaceLightNums( fragmentShader, parameters );
    	fragmentShader = replaceClippingPlaneNums( fragmentShader, parameters );

    	vertexShader = unrollLoops( vertexShader );
    	fragmentShader = unrollLoops( fragmentShader );

    	if ( parameters.isWebGL2 && parameters.isRawShaderMaterial !== true ) {

    		// GLSL 3.0 conversion for built-in materials and ShaderMaterial

    		versionString = '#version 300 es\n';

    		prefixVertex = [
    			'precision mediump sampler2DArray;',
    			'#define attribute in',
    			'#define varying out',
    			'#define texture2D texture'
    		].join( '\n' ) + '\n' + prefixVertex;

    		prefixFragment = [
    			'#define varying in',
    			( parameters.glslVersion === GLSL3 ) ? '' : 'layout(location = 0) out highp vec4 pc_fragColor;',
    			( parameters.glslVersion === GLSL3 ) ? '' : '#define gl_FragColor pc_fragColor',
    			'#define gl_FragDepthEXT gl_FragDepth',
    			'#define texture2D texture',
    			'#define textureCube texture',
    			'#define texture2DProj textureProj',
    			'#define texture2DLodEXT textureLod',
    			'#define texture2DProjLodEXT textureProjLod',
    			'#define textureCubeLodEXT textureLod',
    			'#define texture2DGradEXT textureGrad',
    			'#define texture2DProjGradEXT textureProjGrad',
    			'#define textureCubeGradEXT textureGrad'
    		].join( '\n' ) + '\n' + prefixFragment;

    	}

    	const vertexGlsl = versionString + prefixVertex + vertexShader;
    	const fragmentGlsl = versionString + prefixFragment + fragmentShader;

    	// console.log( '*VERTEX*', vertexGlsl );
    	// console.log( '*FRAGMENT*', fragmentGlsl );

    	const glVertexShader = WebGLShader( gl, 35633, vertexGlsl );
    	const glFragmentShader = WebGLShader( gl, 35632, fragmentGlsl );

    	gl.attachShader( program, glVertexShader );
    	gl.attachShader( program, glFragmentShader );

    	// Force a particular attribute to index 0.

    	if ( parameters.index0AttributeName !== undefined ) {

    		gl.bindAttribLocation( program, 0, parameters.index0AttributeName );

    	} else if ( parameters.morphTargets === true ) {

    		// programs with morphTargets displace position out of attribute 0
    		gl.bindAttribLocation( program, 0, 'position' );

    	}

    	gl.linkProgram( program );

    	// check for link errors
    	if ( renderer.debug.checkShaderErrors ) {

    		const programLog = gl.getProgramInfoLog( program ).trim();
    		const vertexLog = gl.getShaderInfoLog( glVertexShader ).trim();
    		const fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim();

    		let runnable = true;
    		let haveDiagnostics = true;

    		if ( gl.getProgramParameter( program, 35714 ) === false ) {

    			runnable = false;

    			const vertexErrors = getShaderErrors( gl, glVertexShader, 'vertex' );
    			const fragmentErrors = getShaderErrors( gl, glFragmentShader, 'fragment' );

    			console.error(
    				'THREE.WebGLProgram: Shader Error ' + gl.getError() + ' - ' +
    				'VALIDATE_STATUS ' + gl.getProgramParameter( program, 35715 ) + '\n\n' +
    				'Program Info Log: ' + programLog + '\n' +
    				vertexErrors + '\n' +
    				fragmentErrors
    			);

    		} else if ( programLog !== '' ) {

    			console.warn( 'THREE.WebGLProgram: Program Info Log:', programLog );

    		} else if ( vertexLog === '' || fragmentLog === '' ) {

    			haveDiagnostics = false;

    		}

    		if ( haveDiagnostics ) {

    			this.diagnostics = {

    				runnable: runnable,

    				programLog: programLog,

    				vertexShader: {

    					log: vertexLog,
    					prefix: prefixVertex

    				},

    				fragmentShader: {

    					log: fragmentLog,
    					prefix: prefixFragment

    				}

    			};

    		}

    	}

    	// Clean up

    	// Crashes in iOS9 and iOS10. #18402
    	// gl.detachShader( program, glVertexShader );
    	// gl.detachShader( program, glFragmentShader );

    	gl.deleteShader( glVertexShader );
    	gl.deleteShader( glFragmentShader );

    	// set up caching for uniform locations

    	let cachedUniforms;

    	this.getUniforms = function () {

    		if ( cachedUniforms === undefined ) {

    			cachedUniforms = new WebGLUniforms( gl, program );

    		}

    		return cachedUniforms;

    	};

    	// set up caching for attribute locations

    	let cachedAttributes;

    	this.getAttributes = function () {

    		if ( cachedAttributes === undefined ) {

    			cachedAttributes = fetchAttributeLocations( gl, program );

    		}

    		return cachedAttributes;

    	};

    	// free resource

    	this.destroy = function () {

    		bindingStates.releaseStatesOfProgram( this );

    		gl.deleteProgram( program );
    		this.program = undefined;

    	};

    	//

    	this.name = parameters.shaderName;
    	this.id = programIdCount ++;
    	this.cacheKey = cacheKey;
    	this.usedTimes = 1;
    	this.program = program;
    	this.vertexShader = glVertexShader;
    	this.fragmentShader = glFragmentShader;

    	return this;

    }

    let _id = 0;

    class WebGLShaderCache {

    	constructor() {

    		this.shaderCache = new Map();
    		this.materialCache = new Map();

    	}

    	update( material ) {

    		const vertexShader = material.vertexShader;
    		const fragmentShader = material.fragmentShader;

    		const vertexShaderStage = this._getShaderStage( vertexShader );
    		const fragmentShaderStage = this._getShaderStage( fragmentShader );

    		const materialShaders = this._getShaderCacheForMaterial( material );

    		if ( materialShaders.has( vertexShaderStage ) === false ) {

    			materialShaders.add( vertexShaderStage );
    			vertexShaderStage.usedTimes ++;

    		}

    		if ( materialShaders.has( fragmentShaderStage ) === false ) {

    			materialShaders.add( fragmentShaderStage );
    			fragmentShaderStage.usedTimes ++;

    		}

    		return this;

    	}

    	remove( material ) {

    		const materialShaders = this.materialCache.get( material );

    		for ( const shaderStage of materialShaders ) {

    			shaderStage.usedTimes --;

    			if ( shaderStage.usedTimes === 0 ) this.shaderCache.delete( shaderStage.code );

    		}

    		this.materialCache.delete( material );

    		return this;

    	}

    	getVertexShaderID( material ) {

    		return this._getShaderStage( material.vertexShader ).id;

    	}

    	getFragmentShaderID( material ) {

    		return this._getShaderStage( material.fragmentShader ).id;

    	}

    	dispose() {

    		this.shaderCache.clear();
    		this.materialCache.clear();

    	}

    	_getShaderCacheForMaterial( material ) {

    		const cache = this.materialCache;
    		let set = cache.get( material );

    		if ( set === undefined ) {

    			set = new Set();
    			cache.set( material, set );

    		}

    		return set;

    	}

    	_getShaderStage( code ) {

    		const cache = this.shaderCache;
    		let stage = cache.get( code );

    		if ( stage === undefined ) {

    			stage = new WebGLShaderStage( code );
    			cache.set( code, stage );

    		}

    		return stage;

    	}

    }

    class WebGLShaderStage {

    	constructor( code ) {

    		this.id = _id ++;

    		this.code = code;
    		this.usedTimes = 0;

    	}

    }

    function WebGLPrograms( renderer, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping ) {

    	const _programLayers = new Layers();
    	const _customShaders = new WebGLShaderCache();
    	const programs = [];

    	const isWebGL2 = capabilities.isWebGL2;
    	const logarithmicDepthBuffer = capabilities.logarithmicDepthBuffer;
    	const vertexTextures = capabilities.vertexTextures;
    	let precision = capabilities.precision;

    	const shaderIDs = {
    		MeshDepthMaterial: 'depth',
    		MeshDistanceMaterial: 'distanceRGBA',
    		MeshNormalMaterial: 'normal',
    		MeshBasicMaterial: 'basic',
    		MeshLambertMaterial: 'lambert',
    		MeshPhongMaterial: 'phong',
    		MeshToonMaterial: 'toon',
    		MeshStandardMaterial: 'physical',
    		MeshPhysicalMaterial: 'physical',
    		MeshMatcapMaterial: 'matcap',
    		LineBasicMaterial: 'basic',
    		LineDashedMaterial: 'dashed',
    		PointsMaterial: 'points',
    		ShadowMaterial: 'shadow',
    		SpriteMaterial: 'sprite'
    	};

    	function getParameters( material, lights, shadows, scene, object ) {

    		const fog = scene.fog;
    		const geometry = object.geometry;
    		const environment = material.isMeshStandardMaterial ? scene.environment : null;

    		const envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || environment );
    		const envMapCubeUVHeight = ( !! envMap ) && ( envMap.mapping === CubeUVReflectionMapping ) ? envMap.image.height : null;

    		const shaderID = shaderIDs[ material.type ];

    		// heuristics to create shader parameters according to lights in the scene
    		// (not to blow over maxLights budget)

    		if ( material.precision !== null ) {

    			precision = capabilities.getMaxPrecision( material.precision );

    			if ( precision !== material.precision ) {

    				console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );

    			}

    		}

    		//

    		const morphAttribute = geometry.morphAttributes.position || geometry.morphAttributes.normal || geometry.morphAttributes.color;
    		const morphTargetsCount = ( morphAttribute !== undefined ) ? morphAttribute.length : 0;

    		let morphTextureStride = 0;

    		if ( geometry.morphAttributes.position !== undefined ) morphTextureStride = 1;
    		if ( geometry.morphAttributes.normal !== undefined ) morphTextureStride = 2;
    		if ( geometry.morphAttributes.color !== undefined ) morphTextureStride = 3;

    		//

    		let vertexShader, fragmentShader;
    		let customVertexShaderID, customFragmentShaderID;

    		if ( shaderID ) {

    			const shader = ShaderLib[ shaderID ];

    			vertexShader = shader.vertexShader;
    			fragmentShader = shader.fragmentShader;

    		} else {

    			vertexShader = material.vertexShader;
    			fragmentShader = material.fragmentShader;

    			_customShaders.update( material );

    			customVertexShaderID = _customShaders.getVertexShaderID( material );
    			customFragmentShaderID = _customShaders.getFragmentShaderID( material );

    		}

    		const currentRenderTarget = renderer.getRenderTarget();

    		const useAlphaTest = material.alphaTest > 0;
    		const useClearcoat = material.clearcoat > 0;
    		const useIridescence = material.iridescence > 0;

    		const parameters = {

    			isWebGL2: isWebGL2,

    			shaderID: shaderID,
    			shaderName: material.type,

    			vertexShader: vertexShader,
    			fragmentShader: fragmentShader,
    			defines: material.defines,

    			customVertexShaderID: customVertexShaderID,
    			customFragmentShaderID: customFragmentShaderID,

    			isRawShaderMaterial: material.isRawShaderMaterial === true,
    			glslVersion: material.glslVersion,

    			precision: precision,

    			instancing: object.isInstancedMesh === true,
    			instancingColor: object.isInstancedMesh === true && object.instanceColor !== null,

    			supportsVertexTextures: vertexTextures,
    			outputEncoding: ( currentRenderTarget === null ) ? renderer.outputEncoding : ( currentRenderTarget.isXRRenderTarget === true ? currentRenderTarget.texture.encoding : LinearEncoding ),
    			map: !! material.map,
    			matcap: !! material.matcap,
    			envMap: !! envMap,
    			envMapMode: envMap && envMap.mapping,
    			envMapCubeUVHeight: envMapCubeUVHeight,
    			lightMap: !! material.lightMap,
    			aoMap: !! material.aoMap,
    			emissiveMap: !! material.emissiveMap,
    			bumpMap: !! material.bumpMap,
    			normalMap: !! material.normalMap,
    			objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,
    			tangentSpaceNormalMap: material.normalMapType === TangentSpaceNormalMap,

    			decodeVideoTexture: !! material.map && ( material.map.isVideoTexture === true ) && ( material.map.encoding === sRGBEncoding ),

    			clearcoat: useClearcoat,
    			clearcoatMap: useClearcoat && !! material.clearcoatMap,
    			clearcoatRoughnessMap: useClearcoat && !! material.clearcoatRoughnessMap,
    			clearcoatNormalMap: useClearcoat && !! material.clearcoatNormalMap,

    			iridescence: useIridescence,
    			iridescenceMap: useIridescence && !! material.iridescenceMap,
    			iridescenceThicknessMap: useIridescence && !! material.iridescenceThicknessMap,

    			displacementMap: !! material.displacementMap,
    			roughnessMap: !! material.roughnessMap,
    			metalnessMap: !! material.metalnessMap,
    			specularMap: !! material.specularMap,
    			specularIntensityMap: !! material.specularIntensityMap,
    			specularColorMap: !! material.specularColorMap,

    			opaque: material.transparent === false && material.blending === NormalBlending,

    			alphaMap: !! material.alphaMap,
    			alphaTest: useAlphaTest,

    			gradientMap: !! material.gradientMap,

    			sheen: material.sheen > 0,
    			sheenColorMap: !! material.sheenColorMap,
    			sheenRoughnessMap: !! material.sheenRoughnessMap,

    			transmission: material.transmission > 0,
    			transmissionMap: !! material.transmissionMap,
    			thicknessMap: !! material.thicknessMap,

    			combine: material.combine,

    			vertexTangents: ( !! material.normalMap && !! geometry.attributes.tangent ),
    			vertexColors: material.vertexColors,
    			vertexAlphas: material.vertexColors === true && !! geometry.attributes.color && geometry.attributes.color.itemSize === 4,
    			vertexUvs: !! material.map || !! material.bumpMap || !! material.normalMap || !! material.specularMap || !! material.alphaMap || !! material.emissiveMap || !! material.roughnessMap || !! material.metalnessMap || !! material.clearcoatMap || !! material.clearcoatRoughnessMap || !! material.clearcoatNormalMap || !! material.iridescenceMap || !! material.iridescenceThicknessMap || !! material.displacementMap || !! material.transmissionMap || !! material.thicknessMap || !! material.specularIntensityMap || !! material.specularColorMap || !! material.sheenColorMap || !! material.sheenRoughnessMap,
    			uvsVertexOnly: ! ( !! material.map || !! material.bumpMap || !! material.normalMap || !! material.specularMap || !! material.alphaMap || !! material.emissiveMap || !! material.roughnessMap || !! material.metalnessMap || !! material.clearcoatNormalMap || !! material.iridescenceMap || !! material.iridescenceThicknessMap || material.transmission > 0 || !! material.transmissionMap || !! material.thicknessMap || !! material.specularIntensityMap || !! material.specularColorMap || material.sheen > 0 || !! material.sheenColorMap || !! material.sheenRoughnessMap ) && !! material.displacementMap,

    			fog: !! fog,
    			useFog: material.fog === true,
    			fogExp2: ( fog && fog.isFogExp2 ),

    			flatShading: !! material.flatShading,

    			sizeAttenuation: material.sizeAttenuation,
    			logarithmicDepthBuffer: logarithmicDepthBuffer,

    			skinning: object.isSkinnedMesh === true,

    			morphTargets: geometry.morphAttributes.position !== undefined,
    			morphNormals: geometry.morphAttributes.normal !== undefined,
    			morphColors: geometry.morphAttributes.color !== undefined,
    			morphTargetsCount: morphTargetsCount,
    			morphTextureStride: morphTextureStride,

    			numDirLights: lights.directional.length,
    			numPointLights: lights.point.length,
    			numSpotLights: lights.spot.length,
    			numSpotLightMaps: lights.spotLightMap.length,
    			numRectAreaLights: lights.rectArea.length,
    			numHemiLights: lights.hemi.length,

    			numDirLightShadows: lights.directionalShadowMap.length,
    			numPointLightShadows: lights.pointShadowMap.length,
    			numSpotLightShadows: lights.spotShadowMap.length,
    			numSpotLightShadowsWithMaps: lights.numSpotLightShadowsWithMaps,

    			numClippingPlanes: clipping.numPlanes,
    			numClipIntersection: clipping.numIntersection,

    			dithering: material.dithering,

    			shadowMapEnabled: renderer.shadowMap.enabled && shadows.length > 0,
    			shadowMapType: renderer.shadowMap.type,

    			toneMapping: material.toneMapped ? renderer.toneMapping : NoToneMapping,
    			physicallyCorrectLights: renderer.physicallyCorrectLights,

    			premultipliedAlpha: material.premultipliedAlpha,

    			doubleSided: material.side === DoubleSide,
    			flipSided: material.side === BackSide,

    			useDepthPacking: !! material.depthPacking,
    			depthPacking: material.depthPacking || 0,

    			index0AttributeName: material.index0AttributeName,

    			extensionDerivatives: material.extensions && material.extensions.derivatives,
    			extensionFragDepth: material.extensions && material.extensions.fragDepth,
    			extensionDrawBuffers: material.extensions && material.extensions.drawBuffers,
    			extensionShaderTextureLOD: material.extensions && material.extensions.shaderTextureLOD,

    			rendererExtensionFragDepth: isWebGL2 || extensions.has( 'EXT_frag_depth' ),
    			rendererExtensionDrawBuffers: isWebGL2 || extensions.has( 'WEBGL_draw_buffers' ),
    			rendererExtensionShaderTextureLod: isWebGL2 || extensions.has( 'EXT_shader_texture_lod' ),

    			customProgramCacheKey: material.customProgramCacheKey()

    		};

    		return parameters;

    	}

    	function getProgramCacheKey( parameters ) {

    		const array = [];

    		if ( parameters.shaderID ) {

    			array.push( parameters.shaderID );

    		} else {

    			array.push( parameters.customVertexShaderID );
    			array.push( parameters.customFragmentShaderID );

    		}

    		if ( parameters.defines !== undefined ) {

    			for ( const name in parameters.defines ) {

    				array.push( name );
    				array.push( parameters.defines[ name ] );

    			}

    		}

    		if ( parameters.isRawShaderMaterial === false ) {

    			getProgramCacheKeyParameters( array, parameters );
    			getProgramCacheKeyBooleans( array, parameters );
    			array.push( renderer.outputEncoding );

    		}

    		array.push( parameters.customProgramCacheKey );

    		return array.join();

    	}

    	function getProgramCacheKeyParameters( array, parameters ) {

    		array.push( parameters.precision );
    		array.push( parameters.outputEncoding );
    		array.push( parameters.envMapMode );
    		array.push( parameters.envMapCubeUVHeight );
    		array.push( parameters.combine );
    		array.push( parameters.vertexUvs );
    		array.push( parameters.fogExp2 );
    		array.push( parameters.sizeAttenuation );
    		array.push( parameters.morphTargetsCount );
    		array.push( parameters.morphAttributeCount );
    		array.push( parameters.numDirLights );
    		array.push( parameters.numPointLights );
    		array.push( parameters.numSpotLights );
    		array.push( parameters.numSpotLightMaps );
    		array.push( parameters.numHemiLights );
    		array.push( parameters.numRectAreaLights );
    		array.push( parameters.numDirLightShadows );
    		array.push( parameters.numPointLightShadows );
    		array.push( parameters.numSpotLightShadows );
    		array.push( parameters.numSpotLightShadowsWithMaps );
    		array.push( parameters.shadowMapType );
    		array.push( parameters.toneMapping );
    		array.push( parameters.numClippingPlanes );
    		array.push( parameters.numClipIntersection );
    		array.push( parameters.depthPacking );

    	}

    	function getProgramCacheKeyBooleans( array, parameters ) {

    		_programLayers.disableAll();

    		if ( parameters.isWebGL2 )
    			_programLayers.enable( 0 );
    		if ( parameters.supportsVertexTextures )
    			_programLayers.enable( 1 );
    		if ( parameters.instancing )
    			_programLayers.enable( 2 );
    		if ( parameters.instancingColor )
    			_programLayers.enable( 3 );
    		if ( parameters.map )
    			_programLayers.enable( 4 );
    		if ( parameters.matcap )
    			_programLayers.enable( 5 );
    		if ( parameters.envMap )
    			_programLayers.enable( 6 );
    		if ( parameters.lightMap )
    			_programLayers.enable( 7 );
    		if ( parameters.aoMap )
    			_programLayers.enable( 8 );
    		if ( parameters.emissiveMap )
    			_programLayers.enable( 9 );
    		if ( parameters.bumpMap )
    			_programLayers.enable( 10 );
    		if ( parameters.normalMap )
    			_programLayers.enable( 11 );
    		if ( parameters.objectSpaceNormalMap )
    			_programLayers.enable( 12 );
    		if ( parameters.tangentSpaceNormalMap )
    			_programLayers.enable( 13 );
    		if ( parameters.clearcoat )
    			_programLayers.enable( 14 );
    		if ( parameters.clearcoatMap )
    			_programLayers.enable( 15 );
    		if ( parameters.clearcoatRoughnessMap )
    			_programLayers.enable( 16 );
    		if ( parameters.clearcoatNormalMap )
    			_programLayers.enable( 17 );
    		if ( parameters.iridescence )
    			_programLayers.enable( 18 );
    		if ( parameters.iridescenceMap )
    			_programLayers.enable( 19 );
    		if ( parameters.iridescenceThicknessMap )
    			_programLayers.enable( 20 );
    		if ( parameters.displacementMap )
    			_programLayers.enable( 21 );
    		if ( parameters.specularMap )
    			_programLayers.enable( 22 );
    		if ( parameters.roughnessMap )
    			_programLayers.enable( 23 );
    		if ( parameters.metalnessMap )
    			_programLayers.enable( 24 );
    		if ( parameters.gradientMap )
    			_programLayers.enable( 25 );
    		if ( parameters.alphaMap )
    			_programLayers.enable( 26 );
    		if ( parameters.alphaTest )
    			_programLayers.enable( 27 );
    		if ( parameters.vertexColors )
    			_programLayers.enable( 28 );
    		if ( parameters.vertexAlphas )
    			_programLayers.enable( 29 );
    		if ( parameters.vertexUvs )
    			_programLayers.enable( 30 );
    		if ( parameters.vertexTangents )
    			_programLayers.enable( 31 );
    		if ( parameters.uvsVertexOnly )
    			_programLayers.enable( 32 );

    		array.push( _programLayers.mask );
    		_programLayers.disableAll();

    		if ( parameters.fog )
    			_programLayers.enable( 0 );
    		if ( parameters.useFog )
    			_programLayers.enable( 1 );
    		if ( parameters.flatShading )
    			_programLayers.enable( 2 );
    		if ( parameters.logarithmicDepthBuffer )
    			_programLayers.enable( 3 );
    		if ( parameters.skinning )
    			_programLayers.enable( 4 );
    		if ( parameters.morphTargets )
    			_programLayers.enable( 5 );
    		if ( parameters.morphNormals )
    			_programLayers.enable( 6 );
    		if ( parameters.morphColors )
    			_programLayers.enable( 7 );
    		if ( parameters.premultipliedAlpha )
    			_programLayers.enable( 8 );
    		if ( parameters.shadowMapEnabled )
    			_programLayers.enable( 9 );
    		if ( parameters.physicallyCorrectLights )
    			_programLayers.enable( 10 );
    		if ( parameters.doubleSided )
    			_programLayers.enable( 11 );
    		if ( parameters.flipSided )
    			_programLayers.enable( 12 );
    		if ( parameters.useDepthPacking )
    			_programLayers.enable( 13 );
    		if ( parameters.dithering )
    			_programLayers.enable( 14 );
    		if ( parameters.specularIntensityMap )
    			_programLayers.enable( 15 );
    		if ( parameters.specularColorMap )
    			_programLayers.enable( 16 );
    		if ( parameters.transmission )
    			_programLayers.enable( 17 );
    		if ( parameters.transmissionMap )
    			_programLayers.enable( 18 );
    		if ( parameters.thicknessMap )
    			_programLayers.enable( 19 );
    		if ( parameters.sheen )
    			_programLayers.enable( 20 );
    		if ( parameters.sheenColorMap )
    			_programLayers.enable( 21 );
    		if ( parameters.sheenRoughnessMap )
    			_programLayers.enable( 22 );
    		if ( parameters.decodeVideoTexture )
    			_programLayers.enable( 23 );
    		if ( parameters.opaque )
    			_programLayers.enable( 24 );

    		array.push( _programLayers.mask );

    	}

    	function getUniforms( material ) {

    		const shaderID = shaderIDs[ material.type ];
    		let uniforms;

    		if ( shaderID ) {

    			const shader = ShaderLib[ shaderID ];
    			uniforms = UniformsUtils.clone( shader.uniforms );

    		} else {

    			uniforms = material.uniforms;

    		}

    		return uniforms;

    	}

    	function acquireProgram( parameters, cacheKey ) {

    		let program;

    		// Check if code has been already compiled
    		for ( let p = 0, pl = programs.length; p < pl; p ++ ) {

    			const preexistingProgram = programs[ p ];

    			if ( preexistingProgram.cacheKey === cacheKey ) {

    				program = preexistingProgram;
    				++ program.usedTimes;

    				break;

    			}

    		}

    		if ( program === undefined ) {

    			program = new WebGLProgram( renderer, cacheKey, parameters, bindingStates );
    			programs.push( program );

    		}

    		return program;

    	}

    	function releaseProgram( program ) {

    		if ( -- program.usedTimes === 0 ) {

    			// Remove from unordered set
    			const i = programs.indexOf( program );
    			programs[ i ] = programs[ programs.length - 1 ];
    			programs.pop();

    			// Free WebGL resources
    			program.destroy();

    		}

    	}

    	function releaseShaderCache( material ) {

    		_customShaders.remove( material );

    	}

    	function dispose() {

    		_customShaders.dispose();

    	}

    	return {
    		getParameters: getParameters,
    		getProgramCacheKey: getProgramCacheKey,
    		getUniforms: getUniforms,
    		acquireProgram: acquireProgram,
    		releaseProgram: releaseProgram,
    		releaseShaderCache: releaseShaderCache,
    		// Exposed for resource monitoring & error feedback via renderer.info:
    		programs: programs,
    		dispose: dispose
    	};

    }

    function WebGLProperties() {

    	let properties = new WeakMap();

    	function get( object ) {

    		let map = properties.get( object );

    		if ( map === undefined ) {

    			map = {};
    			properties.set( object, map );

    		}

    		return map;

    	}

    	function remove( object ) {

    		properties.delete( object );

    	}

    	function update( object, key, value ) {

    		properties.get( object )[ key ] = value;

    	}

    	function dispose() {

    		properties = new WeakMap();

    	}

    	return {
    		get: get,
    		remove: remove,
    		update: update,
    		dispose: dispose
    	};

    }

    function painterSortStable( a, b ) {

    	if ( a.groupOrder !== b.groupOrder ) {

    		return a.groupOrder - b.groupOrder;

    	} else if ( a.renderOrder !== b.renderOrder ) {

    		return a.renderOrder - b.renderOrder;

    	} else if ( a.material.id !== b.material.id ) {

    		return a.material.id - b.material.id;

    	} else if ( a.z !== b.z ) {

    		return a.z - b.z;

    	} else {

    		return a.id - b.id;

    	}

    }

    function reversePainterSortStable( a, b ) {

    	if ( a.groupOrder !== b.groupOrder ) {

    		return a.groupOrder - b.groupOrder;

    	} else if ( a.renderOrder !== b.renderOrder ) {

    		return a.renderOrder - b.renderOrder;

    	} else if ( a.z !== b.z ) {

    		return b.z - a.z;

    	} else {

    		return a.id - b.id;

    	}

    }


    function WebGLRenderList() {

    	const renderItems = [];
    	let renderItemsIndex = 0;

    	const opaque = [];
    	const transmissive = [];
    	const transparent = [];

    	function init() {

    		renderItemsIndex = 0;

    		opaque.length = 0;
    		transmissive.length = 0;
    		transparent.length = 0;

    	}

    	function getNextRenderItem( object, geometry, material, groupOrder, z, group ) {

    		let renderItem = renderItems[ renderItemsIndex ];

    		if ( renderItem === undefined ) {

    			renderItem = {
    				id: object.id,
    				object: object,
    				geometry: geometry,
    				material: material,
    				groupOrder: groupOrder,
    				renderOrder: object.renderOrder,
    				z: z,
    				group: group
    			};

    			renderItems[ renderItemsIndex ] = renderItem;

    		} else {

    			renderItem.id = object.id;
    			renderItem.object = object;
    			renderItem.geometry = geometry;
    			renderItem.material = material;
    			renderItem.groupOrder = groupOrder;
    			renderItem.renderOrder = object.renderOrder;
    			renderItem.z = z;
    			renderItem.group = group;

    		}

    		renderItemsIndex ++;

    		return renderItem;

    	}

    	function push( object, geometry, material, groupOrder, z, group ) {

    		const renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group );

    		if ( material.transmission > 0.0 ) {

    			transmissive.push( renderItem );

    		} else if ( material.transparent === true ) {

    			transparent.push( renderItem );

    		} else {

    			opaque.push( renderItem );

    		}

    	}

    	function unshift( object, geometry, material, groupOrder, z, group ) {

    		const renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group );

    		if ( material.transmission > 0.0 ) {

    			transmissive.unshift( renderItem );

    		} else if ( material.transparent === true ) {

    			transparent.unshift( renderItem );

    		} else {

    			opaque.unshift( renderItem );

    		}

    	}

    	function sort( customOpaqueSort, customTransparentSort ) {

    		if ( opaque.length > 1 ) opaque.sort( customOpaqueSort || painterSortStable );
    		if ( transmissive.length > 1 ) transmissive.sort( customTransparentSort || reversePainterSortStable );
    		if ( transparent.length > 1 ) transparent.sort( customTransparentSort || reversePainterSortStable );

    	}

    	function finish() {

    		// Clear references from inactive renderItems in the list

    		for ( let i = renderItemsIndex, il = renderItems.length; i < il; i ++ ) {

    			const renderItem = renderItems[ i ];

    			if ( renderItem.id === null ) break;

    			renderItem.id = null;
    			renderItem.object = null;
    			renderItem.geometry = null;
    			renderItem.material = null;
    			renderItem.group = null;

    		}

    	}

    	return {

    		opaque: opaque,
    		transmissive: transmissive,
    		transparent: transparent,

    		init: init,
    		push: push,
    		unshift: unshift,
    		finish: finish,

    		sort: sort
    	};

    }

    function WebGLRenderLists() {

    	let lists = new WeakMap();

    	function get( scene, renderCallDepth ) {

    		const listArray = lists.get( scene );
    		let list;

    		if ( listArray === undefined ) {

    			list = new WebGLRenderList();
    			lists.set( scene, [ list ] );

    		} else {

    			if ( renderCallDepth >= listArray.length ) {

    				list = new WebGLRenderList();
    				listArray.push( list );

    			} else {

    				list = listArray[ renderCallDepth ];

    			}

    		}

    		return list;

    	}

    	function dispose() {

    		lists = new WeakMap();

    	}

    	return {
    		get: get,
    		dispose: dispose
    	};

    }

    function UniformsCache() {

    	const lights = {};

    	return {

    		get: function ( light ) {

    			if ( lights[ light.id ] !== undefined ) {

    				return lights[ light.id ];

    			}

    			let uniforms;

    			switch ( light.type ) {

    				case 'DirectionalLight':
    					uniforms = {
    						direction: new Vector3(),
    						color: new Color()
    					};
    					break;

    				case 'SpotLight':
    					uniforms = {
    						position: new Vector3(),
    						direction: new Vector3(),
    						color: new Color(),
    						distance: 0,
    						coneCos: 0,
    						penumbraCos: 0,
    						decay: 0
    					};
    					break;

    				case 'PointLight':
    					uniforms = {
    						position: new Vector3(),
    						color: new Color(),
    						distance: 0,
    						decay: 0
    					};
    					break;

    				case 'HemisphereLight':
    					uniforms = {
    						direction: new Vector3(),
    						skyColor: new Color(),
    						groundColor: new Color()
    					};
    					break;

    				case 'RectAreaLight':
    					uniforms = {
    						color: new Color(),
    						position: new Vector3(),
    						halfWidth: new Vector3(),
    						halfHeight: new Vector3()
    					};
    					break;

    			}

    			lights[ light.id ] = uniforms;

    			return uniforms;

    		}

    	};

    }

    function ShadowUniformsCache() {

    	const lights = {};

    	return {

    		get: function ( light ) {

    			if ( lights[ light.id ] !== undefined ) {

    				return lights[ light.id ];

    			}

    			let uniforms;

    			switch ( light.type ) {

    				case 'DirectionalLight':
    					uniforms = {
    						shadowBias: 0,
    						shadowNormalBias: 0,
    						shadowRadius: 1,
    						shadowMapSize: new Vector2()
    					};
    					break;

    				case 'SpotLight':
    					uniforms = {
    						shadowBias: 0,
    						shadowNormalBias: 0,
    						shadowRadius: 1,
    						shadowMapSize: new Vector2()
    					};
    					break;

    				case 'PointLight':
    					uniforms = {
    						shadowBias: 0,
    						shadowNormalBias: 0,
    						shadowRadius: 1,
    						shadowMapSize: new Vector2(),
    						shadowCameraNear: 1,
    						shadowCameraFar: 1000
    					};
    					break;

    				// TODO (abelnation): set RectAreaLight shadow uniforms

    			}

    			lights[ light.id ] = uniforms;

    			return uniforms;

    		}

    	};

    }



    let nextVersion = 0;

    function shadowCastingAndTexturingLightsFirst( lightA, lightB ) {

    	return ( lightB.castShadow ? 2 : 0 ) - ( lightA.castShadow ? 2 : 0 ) + ( lightB.map ? 1 : 0 ) - ( lightA.map ? 1 : 0 );

    }

    function WebGLLights( extensions, capabilities ) {

    	const cache = new UniformsCache();

    	const shadowCache = ShadowUniformsCache();

    	const state = {

    		version: 0,

    		hash: {
    			directionalLength: - 1,
    			pointLength: - 1,
    			spotLength: - 1,
    			rectAreaLength: - 1,
    			hemiLength: - 1,

    			numDirectionalShadows: - 1,
    			numPointShadows: - 1,
    			numSpotShadows: - 1,
    			numSpotMaps: - 1
    		},

    		ambient: [ 0, 0, 0 ],
    		probe: [],
    		directional: [],
    		directionalShadow: [],
    		directionalShadowMap: [],
    		directionalShadowMatrix: [],
    		spot: [],
    		spotLightMap: [],
    		spotShadow: [],
    		spotShadowMap: [],
    		spotLightMatrix: [],
    		rectArea: [],
    		rectAreaLTC1: null,
    		rectAreaLTC2: null,
    		point: [],
    		pointShadow: [],
    		pointShadowMap: [],
    		pointShadowMatrix: [],
    		hemi: [],
    		numSpotLightShadowsWithMaps: 0

    	};

    	for ( let i = 0; i < 9; i ++ ) state.probe.push( new Vector3() );

    	const vector3 = new Vector3();
    	const matrix4 = new Matrix4();
    	const matrix42 = new Matrix4();

    	function setup( lights, physicallyCorrectLights ) {

    		let r = 0, g = 0, b = 0;

    		for ( let i = 0; i < 9; i ++ ) state.probe[ i ].set( 0, 0, 0 );

    		let directionalLength = 0;
    		let pointLength = 0;
    		let spotLength = 0;
    		let rectAreaLength = 0;
    		let hemiLength = 0;

    		let numDirectionalShadows = 0;
    		let numPointShadows = 0;
    		let numSpotShadows = 0;
    		let numSpotMaps = 0;
    		let numSpotShadowsWithMaps = 0;

    		// ordering : [shadow casting + map texturing, map texturing, shadow casting, none ]
    		lights.sort( shadowCastingAndTexturingLightsFirst );

    		// artist-friendly light intensity scaling factor
    		const scaleFactor = ( physicallyCorrectLights !== true ) ? Math.PI : 1;

    		for ( let i = 0, l = lights.length; i < l; i ++ ) {

    			const light = lights[ i ];

    			const color = light.color;
    			const intensity = light.intensity;
    			const distance = light.distance;

    			const shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;

    			if ( light.isAmbientLight ) {

    				r += color.r * intensity * scaleFactor;
    				g += color.g * intensity * scaleFactor;
    				b += color.b * intensity * scaleFactor;

    			} else if ( light.isLightProbe ) {

    				for ( let j = 0; j < 9; j ++ ) {

    					state.probe[ j ].addScaledVector( light.sh.coefficients[ j ], intensity );

    				}

    			} else if ( light.isDirectionalLight ) {

    				const uniforms = cache.get( light );

    				uniforms.color.copy( light.color ).multiplyScalar( light.intensity * scaleFactor );

    				if ( light.castShadow ) {

    					const shadow = light.shadow;

    					const shadowUniforms = shadowCache.get( light );

    					shadowUniforms.shadowBias = shadow.bias;
    					shadowUniforms.shadowNormalBias = shadow.normalBias;
    					shadowUniforms.shadowRadius = shadow.radius;
    					shadowUniforms.shadowMapSize = shadow.mapSize;

    					state.directionalShadow[ directionalLength ] = shadowUniforms;
    					state.directionalShadowMap[ directionalLength ] = shadowMap;
    					state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;

    					numDirectionalShadows ++;

    				}

    				state.directional[ directionalLength ] = uniforms;

    				directionalLength ++;

    			} else if ( light.isSpotLight ) {

    				const uniforms = cache.get( light );

    				uniforms.position.setFromMatrixPosition( light.matrixWorld );

    				uniforms.color.copy( color ).multiplyScalar( intensity * scaleFactor );
    				uniforms.distance = distance;

    				uniforms.coneCos = Math.cos( light.angle );
    				uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );
    				uniforms.decay = light.decay;

    				state.spot[ spotLength ] = uniforms;

    				const shadow = light.shadow;

    				if ( light.map ) {

    					state.spotLightMap[ numSpotMaps ] = light.map;
    					numSpotMaps ++;

    					// make sure the lightMatrix is up to date
    					// TODO : do it if required only
    					shadow.updateMatrices( light );

    					if ( light.castShadow ) numSpotShadowsWithMaps ++;

    				}

    				state.spotLightMatrix[ spotLength ] = shadow.matrix;

    				if ( light.castShadow ) {

    					const shadowUniforms = shadowCache.get( light );

    					shadowUniforms.shadowBias = shadow.bias;
    					shadowUniforms.shadowNormalBias = shadow.normalBias;
    					shadowUniforms.shadowRadius = shadow.radius;
    					shadowUniforms.shadowMapSize = shadow.mapSize;

    					state.spotShadow[ spotLength ] = shadowUniforms;
    					state.spotShadowMap[ spotLength ] = shadowMap;

    					numSpotShadows ++;

    				}

    				spotLength ++;

    			} else if ( light.isRectAreaLight ) {

    				const uniforms = cache.get( light );

    				// (a) intensity is the total visible light emitted
    				//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );

    				// (b) intensity is the brightness of the light
    				uniforms.color.copy( color ).multiplyScalar( intensity );

    				uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
    				uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );

    				state.rectArea[ rectAreaLength ] = uniforms;

    				rectAreaLength ++;

    			} else if ( light.isPointLight ) {

    				const uniforms = cache.get( light );

    				uniforms.color.copy( light.color ).multiplyScalar( light.intensity * scaleFactor );
    				uniforms.distance = light.distance;
    				uniforms.decay = light.decay;

    				if ( light.castShadow ) {

    					const shadow = light.shadow;

    					const shadowUniforms = shadowCache.get( light );

    					shadowUniforms.shadowBias = shadow.bias;
    					shadowUniforms.shadowNormalBias = shadow.normalBias;
    					shadowUniforms.shadowRadius = shadow.radius;
    					shadowUniforms.shadowMapSize = shadow.mapSize;
    					shadowUniforms.shadowCameraNear = shadow.camera.near;
    					shadowUniforms.shadowCameraFar = shadow.camera.far;

    					state.pointShadow[ pointLength ] = shadowUniforms;
    					state.pointShadowMap[ pointLength ] = shadowMap;
    					state.pointShadowMatrix[ pointLength ] = light.shadow.matrix;

    					numPointShadows ++;

    				}

    				state.point[ pointLength ] = uniforms;

    				pointLength ++;

    			} else if ( light.isHemisphereLight ) {

    				const uniforms = cache.get( light );

    				uniforms.skyColor.copy( light.color ).multiplyScalar( intensity * scaleFactor );
    				uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity * scaleFactor );

    				state.hemi[ hemiLength ] = uniforms;

    				hemiLength ++;

    			}

    		}

    		if ( rectAreaLength > 0 ) {

    			if ( capabilities.isWebGL2 ) {

    				// WebGL 2

    				state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
    				state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;

    			} else {

    				// WebGL 1

    				if ( extensions.has( 'OES_texture_float_linear' ) === true ) {

    					state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
    					state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;

    				} else if ( extensions.has( 'OES_texture_half_float_linear' ) === true ) {

    					state.rectAreaLTC1 = UniformsLib.LTC_HALF_1;
    					state.rectAreaLTC2 = UniformsLib.LTC_HALF_2;

    				} else {

    					console.error( 'THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.' );

    				}

    			}

    		}

    		state.ambient[ 0 ] = r;
    		state.ambient[ 1 ] = g;
    		state.ambient[ 2 ] = b;

    		const hash = state.hash;

    		if ( hash.directionalLength !== directionalLength ||
    			hash.pointLength !== pointLength ||
    			hash.spotLength !== spotLength ||
    			hash.rectAreaLength !== rectAreaLength ||
    			hash.hemiLength !== hemiLength ||
    			hash.numDirectionalShadows !== numDirectionalShadows ||
    			hash.numPointShadows !== numPointShadows ||
    			hash.numSpotShadows !== numSpotShadows ||
    			hash.numSpotMaps !== numSpotMaps ) {

    			state.directional.length = directionalLength;
    			state.spot.length = spotLength;
    			state.rectArea.length = rectAreaLength;
    			state.point.length = pointLength;
    			state.hemi.length = hemiLength;

    			state.directionalShadow.length = numDirectionalShadows;
    			state.directionalShadowMap.length = numDirectionalShadows;
    			state.pointShadow.length = numPointShadows;
    			state.pointShadowMap.length = numPointShadows;
    			state.spotShadow.length = numSpotShadows;
    			state.spotShadowMap.length = numSpotShadows;
    			state.directionalShadowMatrix.length = numDirectionalShadows;
    			state.pointShadowMatrix.length = numPointShadows;
    			state.spotLightMatrix.length = numSpotShadows + numSpotMaps - numSpotShadowsWithMaps;
    			state.spotLightMap.length = numSpotMaps;
    			state.numSpotLightShadowsWithMaps = numSpotShadowsWithMaps;

    			hash.directionalLength = directionalLength;
    			hash.pointLength = pointLength;
    			hash.spotLength = spotLength;
    			hash.rectAreaLength = rectAreaLength;
    			hash.hemiLength = hemiLength;

    			hash.numDirectionalShadows = numDirectionalShadows;
    			hash.numPointShadows = numPointShadows;
    			hash.numSpotShadows = numSpotShadows;
    			hash.numSpotMaps = numSpotMaps;

    			state.version = nextVersion ++;

    		}

    	}

    	function setupView( lights, camera ) {

    		let directionalLength = 0;
    		let pointLength = 0;
    		let spotLength = 0;
    		let rectAreaLength = 0;
    		let hemiLength = 0;

    		const viewMatrix = camera.matrixWorldInverse;

    		for ( let i = 0, l = lights.length; i < l; i ++ ) {

    			const light = lights[ i ];

    			if ( light.isDirectionalLight ) {

    				const uniforms = state.directional[ directionalLength ];

    				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
    				vector3.setFromMatrixPosition( light.target.matrixWorld );
    				uniforms.direction.sub( vector3 );
    				uniforms.direction.transformDirection( viewMatrix );

    				directionalLength ++;

    			} else if ( light.isSpotLight ) {

    				const uniforms = state.spot[ spotLength ];

    				uniforms.position.setFromMatrixPosition( light.matrixWorld );
    				uniforms.position.applyMatrix4( viewMatrix );

    				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
    				vector3.setFromMatrixPosition( light.target.matrixWorld );
    				uniforms.direction.sub( vector3 );
    				uniforms.direction.transformDirection( viewMatrix );

    				spotLength ++;

    			} else if ( light.isRectAreaLight ) {

    				const uniforms = state.rectArea[ rectAreaLength ];

    				uniforms.position.setFromMatrixPosition( light.matrixWorld );
    				uniforms.position.applyMatrix4( viewMatrix );

    				// extract local rotation of light to derive width/height half vectors
    				matrix42.identity();
    				matrix4.copy( light.matrixWorld );
    				matrix4.premultiply( viewMatrix );
    				matrix42.extractRotation( matrix4 );

    				uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
    				uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );

    				uniforms.halfWidth.applyMatrix4( matrix42 );
    				uniforms.halfHeight.applyMatrix4( matrix42 );

    				rectAreaLength ++;

    			} else if ( light.isPointLight ) {

    				const uniforms = state.point[ pointLength ];

    				uniforms.position.setFromMatrixPosition( light.matrixWorld );
    				uniforms.position.applyMatrix4( viewMatrix );

    				pointLength ++;

    			} else if ( light.isHemisphereLight ) {

    				const uniforms = state.hemi[ hemiLength ];

    				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
    				uniforms.direction.transformDirection( viewMatrix );

    				hemiLength ++;

    			}

    		}

    	}

    	return {
    		setup: setup,
    		setupView: setupView,
    		state: state
    	};

    }

    function WebGLRenderState( extensions, capabilities ) {

    	const lights = new WebGLLights( extensions, capabilities );

    	const lightsArray = [];
    	const shadowsArray = [];

    	function init() {

    		lightsArray.length = 0;
    		shadowsArray.length = 0;

    	}

    	function pushLight( light ) {

    		lightsArray.push( light );

    	}

    	function pushShadow( shadowLight ) {

    		shadowsArray.push( shadowLight );

    	}

    	function setupLights( physicallyCorrectLights ) {

    		lights.setup( lightsArray, physicallyCorrectLights );

    	}

    	function setupLightsView( camera ) {

    		lights.setupView( lightsArray, camera );

    	}

    	const state = {
    		lightsArray: lightsArray,
    		shadowsArray: shadowsArray,

    		lights: lights
    	};

    	return {
    		init: init,
    		state: state,
    		setupLights: setupLights,
    		setupLightsView: setupLightsView,

    		pushLight: pushLight,
    		pushShadow: pushShadow
    	};

    }

    function WebGLRenderStates( extensions, capabilities ) {

    	let renderStates = new WeakMap();

    	function get( scene, renderCallDepth = 0 ) {

    		const renderStateArray = renderStates.get( scene );
    		let renderState;

    		if ( renderStateArray === undefined ) {

    			renderState = new WebGLRenderState( extensions, capabilities );
    			renderStates.set( scene, [ renderState ] );

    		} else {

    			if ( renderCallDepth >= renderStateArray.length ) {

    				renderState = new WebGLRenderState( extensions, capabilities );
    				renderStateArray.push( renderState );

    			} else {

    				renderState = renderStateArray[ renderCallDepth ];

    			}

    		}

    		return renderState;

    	}

    	function dispose() {

    		renderStates = new WeakMap();

    	}

    	return {
    		get: get,
    		dispose: dispose
    	};

    }

    class MeshDepthMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshDepthMaterial = true;

    		this.type = 'MeshDepthMaterial';

    		this.depthPacking = BasicDepthPacking;

    		this.map = null;

    		this.alphaMap = null;

    		this.displacementMap = null;
    		this.displacementScale = 1;
    		this.displacementBias = 0;

    		this.wireframe = false;
    		this.wireframeLinewidth = 1;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.depthPacking = source.depthPacking;

    		this.map = source.map;

    		this.alphaMap = source.alphaMap;

    		this.displacementMap = source.displacementMap;
    		this.displacementScale = source.displacementScale;
    		this.displacementBias = source.displacementBias;

    		this.wireframe = source.wireframe;
    		this.wireframeLinewidth = source.wireframeLinewidth;

    		return this;

    	}

    }

    class MeshDistanceMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshDistanceMaterial = true;

    		this.type = 'MeshDistanceMaterial';

    		this.referencePosition = new Vector3();
    		this.nearDistance = 1;
    		this.farDistance = 1000;

    		this.map = null;

    		this.alphaMap = null;

    		this.displacementMap = null;
    		this.displacementScale = 1;
    		this.displacementBias = 0;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.referencePosition.copy( source.referencePosition );
    		this.nearDistance = source.nearDistance;
    		this.farDistance = source.farDistance;

    		this.map = source.map;

    		this.alphaMap = source.alphaMap;

    		this.displacementMap = source.displacementMap;
    		this.displacementScale = source.displacementScale;
    		this.displacementBias = source.displacementBias;

    		return this;

    	}

    }

    const vertex = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";

    const fragment = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tconst float samples = float( VSM_SAMPLES );\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";

    function WebGLShadowMap( _renderer, _objects, _capabilities ) {

    	let _frustum = new Frustum();

    	const _shadowMapSize = new Vector2(),
    		_viewportSize = new Vector2(),

    		_viewport = new Vector4(),

    		_depthMaterial = new MeshDepthMaterial( { depthPacking: RGBADepthPacking } ),
    		_distanceMaterial = new MeshDistanceMaterial(),

    		_materialCache = {},

    		_maxTextureSize = _capabilities.maxTextureSize;

    	const shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide };

    	const shadowMaterialVertical = new ShaderMaterial( {
    		defines: {
    			VSM_SAMPLES: 8
    		},
    		uniforms: {
    			shadow_pass: { value: null },
    			resolution: { value: new Vector2() },
    			radius: { value: 4.0 }
    		},

    		vertexShader: vertex,
    		fragmentShader: fragment

    	} );

    	const shadowMaterialHorizontal = shadowMaterialVertical.clone();
    	shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1;

    	const fullScreenTri = new BufferGeometry();
    	fullScreenTri.setAttribute(
    		'position',
    		new BufferAttribute(
    			new Float32Array( [ - 1, - 1, 0.5, 3, - 1, 0.5, - 1, 3, 0.5 ] ),
    			3
    		)
    	);

    	const fullScreenMesh = new Mesh( fullScreenTri, shadowMaterialVertical );

    	const scope = this;

    	this.enabled = false;

    	this.autoUpdate = true;
    	this.needsUpdate = false;

    	this.type = PCFShadowMap;

    	this.render = function ( lights, scene, camera ) {

    		if ( scope.enabled === false ) return;
    		if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;

    		if ( lights.length === 0 ) return;

    		const currentRenderTarget = _renderer.getRenderTarget();
    		const activeCubeFace = _renderer.getActiveCubeFace();
    		const activeMipmapLevel = _renderer.getActiveMipmapLevel();

    		const _state = _renderer.state;

    		// Set GL state for depth map.
    		_state.setBlending( NoBlending );
    		_state.buffers.color.setClear( 1, 1, 1, 1 );
    		_state.buffers.depth.setTest( true );
    		_state.setScissorTest( false );

    		// render depth map

    		for ( let i = 0, il = lights.length; i < il; i ++ ) {

    			const light = lights[ i ];
    			const shadow = light.shadow;

    			if ( shadow === undefined ) {

    				console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );
    				continue;

    			}

    			if ( shadow.autoUpdate === false && shadow.needsUpdate === false ) continue;

    			_shadowMapSize.copy( shadow.mapSize );

    			const shadowFrameExtents = shadow.getFrameExtents();

    			_shadowMapSize.multiply( shadowFrameExtents );

    			_viewportSize.copy( shadow.mapSize );

    			if ( _shadowMapSize.x > _maxTextureSize || _shadowMapSize.y > _maxTextureSize ) {

    				if ( _shadowMapSize.x > _maxTextureSize ) {

    					_viewportSize.x = Math.floor( _maxTextureSize / shadowFrameExtents.x );
    					_shadowMapSize.x = _viewportSize.x * shadowFrameExtents.x;
    					shadow.mapSize.x = _viewportSize.x;

    				}

    				if ( _shadowMapSize.y > _maxTextureSize ) {

    					_viewportSize.y = Math.floor( _maxTextureSize / shadowFrameExtents.y );
    					_shadowMapSize.y = _viewportSize.y * shadowFrameExtents.y;
    					shadow.mapSize.y = _viewportSize.y;

    				}

    			}

    			if ( shadow.map === null ) {

    				const pars = ( this.type !== VSMShadowMap ) ? { minFilter: NearestFilter, magFilter: NearestFilter } : {};

    				shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
    				shadow.map.texture.name = light.name + '.shadowMap';

    				shadow.camera.updateProjectionMatrix();

    			}

    			_renderer.setRenderTarget( shadow.map );
    			_renderer.clear();

    			const viewportCount = shadow.getViewportCount();

    			for ( let vp = 0; vp < viewportCount; vp ++ ) {

    				const viewport = shadow.getViewport( vp );

    				_viewport.set(
    					_viewportSize.x * viewport.x,
    					_viewportSize.y * viewport.y,
    					_viewportSize.x * viewport.z,
    					_viewportSize.y * viewport.w
    				);

    				_state.viewport( _viewport );

    				shadow.updateMatrices( light, vp );

    				_frustum = shadow.getFrustum();

    				renderObject( scene, camera, shadow.camera, light, this.type );

    			}

    			// do blur pass for VSM

    			if ( shadow.isPointLightShadow !== true && this.type === VSMShadowMap ) {

    				VSMPass( shadow, camera );

    			}

    			shadow.needsUpdate = false;

    		}

    		scope.needsUpdate = false;

    		_renderer.setRenderTarget( currentRenderTarget, activeCubeFace, activeMipmapLevel );

    	};

    	function VSMPass( shadow, camera ) {

    		const geometry = _objects.update( fullScreenMesh );

    		if ( shadowMaterialVertical.defines.VSM_SAMPLES !== shadow.blurSamples ) {

    			shadowMaterialVertical.defines.VSM_SAMPLES = shadow.blurSamples;
    			shadowMaterialHorizontal.defines.VSM_SAMPLES = shadow.blurSamples;

    			shadowMaterialVertical.needsUpdate = true;
    			shadowMaterialHorizontal.needsUpdate = true;

    		}

    		if ( shadow.mapPass === null ) {

    			shadow.mapPass = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y );

    		}

    		// vertical pass

    		shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture;
    		shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize;
    		shadowMaterialVertical.uniforms.radius.value = shadow.radius;
    		_renderer.setRenderTarget( shadow.mapPass );
    		_renderer.clear();
    		_renderer.renderBufferDirect( camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null );

    		// horizontal pass

    		shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture;
    		shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize;
    		shadowMaterialHorizontal.uniforms.radius.value = shadow.radius;
    		_renderer.setRenderTarget( shadow.map );
    		_renderer.clear();
    		_renderer.renderBufferDirect( camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null );

    	}

    	function getDepthMaterial( object, material, light, shadowCameraNear, shadowCameraFar, type ) {

    		let result = null;

    		const customMaterial = ( light.isPointLight === true ) ? object.customDistanceMaterial : object.customDepthMaterial;

    		if ( customMaterial !== undefined ) {

    			result = customMaterial;

    		} else {

    			result = ( light.isPointLight === true ) ? _distanceMaterial : _depthMaterial;

    		}

    		if ( ( _renderer.localClippingEnabled && material.clipShadows === true && Array.isArray( material.clippingPlanes ) && material.clippingPlanes.length !== 0 ) ||
    			( material.displacementMap && material.displacementScale !== 0 ) ||
    			( material.alphaMap && material.alphaTest > 0 ) ) {

    			// in this case we need a unique material instance reflecting the
    			// appropriate state

    			const keyA = result.uuid, keyB = material.uuid;

    			let materialsForVariant = _materialCache[ keyA ];

    			if ( materialsForVariant === undefined ) {

    				materialsForVariant = {};
    				_materialCache[ keyA ] = materialsForVariant;

    			}

    			let cachedMaterial = materialsForVariant[ keyB ];

    			if ( cachedMaterial === undefined ) {

    				cachedMaterial = result.clone();
    				materialsForVariant[ keyB ] = cachedMaterial;

    			}

    			result = cachedMaterial;

    		}

    		result.visible = material.visible;
    		result.wireframe = material.wireframe;

    		if ( type === VSMShadowMap ) {

    			result.side = ( material.shadowSide !== null ) ? material.shadowSide : material.side;

    		} else {

    			result.side = ( material.shadowSide !== null ) ? material.shadowSide : shadowSide[ material.side ];

    		}

    		result.alphaMap = material.alphaMap;
    		result.alphaTest = material.alphaTest;

    		result.clipShadows = material.clipShadows;
    		result.clippingPlanes = material.clippingPlanes;
    		result.clipIntersection = material.clipIntersection;

    		result.displacementMap = material.displacementMap;
    		result.displacementScale = material.displacementScale;
    		result.displacementBias = material.displacementBias;

    		result.wireframeLinewidth = material.wireframeLinewidth;
    		result.linewidth = material.linewidth;

    		if ( light.isPointLight === true && result.isMeshDistanceMaterial === true ) {

    			result.referencePosition.setFromMatrixPosition( light.matrixWorld );
    			result.nearDistance = shadowCameraNear;
    			result.farDistance = shadowCameraFar;

    		}

    		return result;

    	}

    	function renderObject( object, camera, shadowCamera, light, type ) {

    		if ( object.visible === false ) return;

    		const visible = object.layers.test( camera.layers );

    		if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {

    			if ( ( object.castShadow || ( object.receiveShadow && type === VSMShadowMap ) ) && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {

    				object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );

    				const geometry = _objects.update( object );
    				const material = object.material;

    				if ( Array.isArray( material ) ) {

    					const groups = geometry.groups;

    					for ( let k = 0, kl = groups.length; k < kl; k ++ ) {

    						const group = groups[ k ];
    						const groupMaterial = material[ group.materialIndex ];

    						if ( groupMaterial && groupMaterial.visible ) {

    							const depthMaterial = getDepthMaterial( object, groupMaterial, light, shadowCamera.near, shadowCamera.far, type );

    							_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );

    						}

    					}

    				} else if ( material.visible ) {

    					const depthMaterial = getDepthMaterial( object, material, light, shadowCamera.near, shadowCamera.far, type );

    					_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );

    				}

    			}

    		}

    		const children = object.children;

    		for ( let i = 0, l = children.length; i < l; i ++ ) {

    			renderObject( children[ i ], camera, shadowCamera, light, type );

    		}

    	}

    }

    function WebGLState( gl, extensions, capabilities ) {

    	const isWebGL2 = capabilities.isWebGL2;

    	function ColorBuffer() {

    		let locked = false;

    		const color = new Vector4();
    		let currentColorMask = null;
    		const currentColorClear = new Vector4( 0, 0, 0, 0 );

    		return {

    			setMask: function ( colorMask ) {

    				if ( currentColorMask !== colorMask && ! locked ) {

    					gl.colorMask( colorMask, colorMask, colorMask, colorMask );
    					currentColorMask = colorMask;

    				}

    			},

    			setLocked: function ( lock ) {

    				locked = lock;

    			},

    			setClear: function ( r, g, b, a, premultipliedAlpha ) {

    				if ( premultipliedAlpha === true ) {

    					r *= a; g *= a; b *= a;

    				}

    				color.set( r, g, b, a );

    				if ( currentColorClear.equals( color ) === false ) {

    					gl.clearColor( r, g, b, a );
    					currentColorClear.copy( color );

    				}

    			},

    			reset: function () {

    				locked = false;

    				currentColorMask = null;
    				currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state

    			}

    		};

    	}

    	function DepthBuffer() {

    		let locked = false;

    		let currentDepthMask = null;
    		let currentDepthFunc = null;
    		let currentDepthClear = null;

    		return {

    			setTest: function ( depthTest ) {

    				if ( depthTest ) {

    					enable( 2929 );

    				} else {

    					disable( 2929 );

    				}

    			},

    			setMask: function ( depthMask ) {

    				if ( currentDepthMask !== depthMask && ! locked ) {

    					gl.depthMask( depthMask );
    					currentDepthMask = depthMask;

    				}

    			},

    			setFunc: function ( depthFunc ) {

    				if ( currentDepthFunc !== depthFunc ) {

    					switch ( depthFunc ) {

    						case NeverDepth:

    							gl.depthFunc( 512 );
    							break;

    						case AlwaysDepth:

    							gl.depthFunc( 519 );
    							break;

    						case LessDepth:

    							gl.depthFunc( 513 );
    							break;

    						case LessEqualDepth:

    							gl.depthFunc( 515 );
    							break;

    						case EqualDepth:

    							gl.depthFunc( 514 );
    							break;

    						case GreaterEqualDepth:

    							gl.depthFunc( 518 );
    							break;

    						case GreaterDepth:

    							gl.depthFunc( 516 );
    							break;

    						case NotEqualDepth:

    							gl.depthFunc( 517 );
    							break;

    						default:

    							gl.depthFunc( 515 );

    					}

    					currentDepthFunc = depthFunc;

    				}

    			},

    			setLocked: function ( lock ) {

    				locked = lock;

    			},

    			setClear: function ( depth ) {

    				if ( currentDepthClear !== depth ) {

    					gl.clearDepth( depth );
    					currentDepthClear = depth;

    				}

    			},

    			reset: function () {

    				locked = false;

    				currentDepthMask = null;
    				currentDepthFunc = null;
    				currentDepthClear = null;

    			}

    		};

    	}

    	function StencilBuffer() {

    		let locked = false;

    		let currentStencilMask = null;
    		let currentStencilFunc = null;
    		let currentStencilRef = null;
    		let currentStencilFuncMask = null;
    		let currentStencilFail = null;
    		let currentStencilZFail = null;
    		let currentStencilZPass = null;
    		let currentStencilClear = null;

    		return {

    			setTest: function ( stencilTest ) {

    				if ( ! locked ) {

    					if ( stencilTest ) {

    						enable( 2960 );

    					} else {

    						disable( 2960 );

    					}

    				}

    			},

    			setMask: function ( stencilMask ) {

    				if ( currentStencilMask !== stencilMask && ! locked ) {

    					gl.stencilMask( stencilMask );
    					currentStencilMask = stencilMask;

    				}

    			},

    			setFunc: function ( stencilFunc, stencilRef, stencilMask ) {

    				if ( currentStencilFunc !== stencilFunc ||
    				     currentStencilRef !== stencilRef ||
    				     currentStencilFuncMask !== stencilMask ) {

    					gl.stencilFunc( stencilFunc, stencilRef, stencilMask );

    					currentStencilFunc = stencilFunc;
    					currentStencilRef = stencilRef;
    					currentStencilFuncMask = stencilMask;

    				}

    			},

    			setOp: function ( stencilFail, stencilZFail, stencilZPass ) {

    				if ( currentStencilFail !== stencilFail ||
    				     currentStencilZFail !== stencilZFail ||
    				     currentStencilZPass !== stencilZPass ) {

    					gl.stencilOp( stencilFail, stencilZFail, stencilZPass );

    					currentStencilFail = stencilFail;
    					currentStencilZFail = stencilZFail;
    					currentStencilZPass = stencilZPass;

    				}

    			},

    			setLocked: function ( lock ) {

    				locked = lock;

    			},

    			setClear: function ( stencil ) {

    				if ( currentStencilClear !== stencil ) {

    					gl.clearStencil( stencil );
    					currentStencilClear = stencil;

    				}

    			},

    			reset: function () {

    				locked = false;

    				currentStencilMask = null;
    				currentStencilFunc = null;
    				currentStencilRef = null;
    				currentStencilFuncMask = null;
    				currentStencilFail = null;
    				currentStencilZFail = null;
    				currentStencilZPass = null;
    				currentStencilClear = null;

    			}

    		};

    	}

    	//

    	const colorBuffer = new ColorBuffer();
    	const depthBuffer = new DepthBuffer();
    	const stencilBuffer = new StencilBuffer();

    	const uboBindings = new WeakMap();
    	const uboProgamMap = new WeakMap();

    	let enabledCapabilities = {};

    	let currentBoundFramebuffers = {};
    	let currentDrawbuffers = new WeakMap();
    	let defaultDrawbuffers = [];

    	let currentProgram = null;

    	let currentBlendingEnabled = false;
    	let currentBlending = null;
    	let currentBlendEquation = null;
    	let currentBlendSrc = null;
    	let currentBlendDst = null;
    	let currentBlendEquationAlpha = null;
    	let currentBlendSrcAlpha = null;
    	let currentBlendDstAlpha = null;
    	let currentPremultipledAlpha = false;

    	let currentFlipSided = null;
    	let currentCullFace = null;

    	let currentLineWidth = null;

    	let currentPolygonOffsetFactor = null;
    	let currentPolygonOffsetUnits = null;

    	const maxTextures = gl.getParameter( 35661 );

    	let lineWidthAvailable = false;
    	let version = 0;
    	const glVersion = gl.getParameter( 7938 );

    	if ( glVersion.indexOf( 'WebGL' ) !== - 1 ) {

    		version = parseFloat( /^WebGL (\d)/.exec( glVersion )[ 1 ] );
    		lineWidthAvailable = ( version >= 1.0 );

    	} else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) {

    		version = parseFloat( /^OpenGL ES (\d)/.exec( glVersion )[ 1 ] );
    		lineWidthAvailable = ( version >= 2.0 );

    	}

    	let currentTextureSlot = null;
    	let currentBoundTextures = {};

    	const scissorParam = gl.getParameter( 3088 );
    	const viewportParam = gl.getParameter( 2978 );

    	const currentScissor = new Vector4().fromArray( scissorParam );
    	const currentViewport = new Vector4().fromArray( viewportParam );

    	function createTexture( type, target, count ) {

    		const data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.
    		const texture = gl.createTexture();

    		gl.bindTexture( type, texture );
    		gl.texParameteri( type, 10241, 9728 );
    		gl.texParameteri( type, 10240, 9728 );

    		for ( let i = 0; i < count; i ++ ) {

    			gl.texImage2D( target + i, 0, 6408, 1, 1, 0, 6408, 5121, data );

    		}

    		return texture;

    	}

    	const emptyTextures = {};
    	emptyTextures[ 3553 ] = createTexture( 3553, 3553, 1 );
    	emptyTextures[ 34067 ] = createTexture( 34067, 34069, 6 );

    	// init

    	colorBuffer.setClear( 0, 0, 0, 1 );
    	depthBuffer.setClear( 1 );
    	stencilBuffer.setClear( 0 );

    	enable( 2929 );
    	depthBuffer.setFunc( LessEqualDepth );

    	setFlipSided( false );
    	setCullFace( CullFaceBack );
    	enable( 2884 );

    	setBlending( NoBlending );

    	//

    	function enable( id ) {

    		if ( enabledCapabilities[ id ] !== true ) {

    			gl.enable( id );
    			enabledCapabilities[ id ] = true;

    		}

    	}

    	function disable( id ) {

    		if ( enabledCapabilities[ id ] !== false ) {

    			gl.disable( id );
    			enabledCapabilities[ id ] = false;

    		}

    	}

    	function bindFramebuffer( target, framebuffer ) {

    		if ( currentBoundFramebuffers[ target ] !== framebuffer ) {

    			gl.bindFramebuffer( target, framebuffer );

    			currentBoundFramebuffers[ target ] = framebuffer;

    			if ( isWebGL2 ) {

    				// 36009 is equivalent to 36160

    				if ( target === 36009 ) {

    					currentBoundFramebuffers[ 36160 ] = framebuffer;

    				}

    				if ( target === 36160 ) {

    					currentBoundFramebuffers[ 36009 ] = framebuffer;

    				}

    			}

    			return true;

    		}

    		return false;

    	}

    	function drawBuffers( renderTarget, framebuffer ) {

    		let drawBuffers = defaultDrawbuffers;

    		let needsUpdate = false;

    		if ( renderTarget ) {

    			drawBuffers = currentDrawbuffers.get( framebuffer );

    			if ( drawBuffers === undefined ) {

    				drawBuffers = [];
    				currentDrawbuffers.set( framebuffer, drawBuffers );

    			}

    			if ( renderTarget.isWebGLMultipleRenderTargets ) {

    				const textures = renderTarget.texture;

    				if ( drawBuffers.length !== textures.length || drawBuffers[ 0 ] !== 36064 ) {

    					for ( let i = 0, il = textures.length; i < il; i ++ ) {

    						drawBuffers[ i ] = 36064 + i;

    					}

    					drawBuffers.length = textures.length;

    					needsUpdate = true;

    				}

    			} else {

    				if ( drawBuffers[ 0 ] !== 36064 ) {

    					drawBuffers[ 0 ] = 36064;

    					needsUpdate = true;

    				}

    			}

    		} else {

    			if ( drawBuffers[ 0 ] !== 1029 ) {

    				drawBuffers[ 0 ] = 1029;

    				needsUpdate = true;

    			}

    		}

    		if ( needsUpdate ) {

    			if ( capabilities.isWebGL2 ) {

    				gl.drawBuffers( drawBuffers );

    			} else {

    				extensions.get( 'WEBGL_draw_buffers' ).drawBuffersWEBGL( drawBuffers );

    			}

    		}


    	}

    	function useProgram( program ) {

    		if ( currentProgram !== program ) {

    			gl.useProgram( program );

    			currentProgram = program;

    			return true;

    		}

    		return false;

    	}

    	const equationToGL = {
    		[ AddEquation ]: 32774,
    		[ SubtractEquation ]: 32778,
    		[ ReverseSubtractEquation ]: 32779
    	};

    	if ( isWebGL2 ) {

    		equationToGL[ MinEquation ] = 32775;
    		equationToGL[ MaxEquation ] = 32776;

    	} else {

    		const extension = extensions.get( 'EXT_blend_minmax' );

    		if ( extension !== null ) {

    			equationToGL[ MinEquation ] = extension.MIN_EXT;
    			equationToGL[ MaxEquation ] = extension.MAX_EXT;

    		}

    	}

    	const factorToGL = {
    		[ ZeroFactor ]: 0,
    		[ OneFactor ]: 1,
    		[ SrcColorFactor ]: 768,
    		[ SrcAlphaFactor ]: 770,
    		[ SrcAlphaSaturateFactor ]: 776,
    		[ DstColorFactor ]: 774,
    		[ DstAlphaFactor ]: 772,
    		[ OneMinusSrcColorFactor ]: 769,
    		[ OneMinusSrcAlphaFactor ]: 771,
    		[ OneMinusDstColorFactor ]: 775,
    		[ OneMinusDstAlphaFactor ]: 773
    	};

    	function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {

    		if ( blending === NoBlending ) {

    			if ( currentBlendingEnabled === true ) {

    				disable( 3042 );
    				currentBlendingEnabled = false;

    			}

    			return;

    		}

    		if ( currentBlendingEnabled === false ) {

    			enable( 3042 );
    			currentBlendingEnabled = true;

    		}

    		if ( blending !== CustomBlending ) {

    			if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {

    				if ( currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation ) {

    					gl.blendEquation( 32774 );

    					currentBlendEquation = AddEquation;
    					currentBlendEquationAlpha = AddEquation;

    				}

    				if ( premultipliedAlpha ) {

    					switch ( blending ) {

    						case NormalBlending:
    							gl.blendFuncSeparate( 1, 771, 1, 771 );
    							break;

    						case AdditiveBlending:
    							gl.blendFunc( 1, 1 );
    							break;

    						case SubtractiveBlending:
    							gl.blendFuncSeparate( 0, 769, 0, 1 );
    							break;

    						case MultiplyBlending:
    							gl.blendFuncSeparate( 0, 768, 0, 770 );
    							break;

    						default:
    							console.error( 'THREE.WebGLState: Invalid blending: ', blending );
    							break;

    					}

    				} else {

    					switch ( blending ) {

    						case NormalBlending:
    							gl.blendFuncSeparate( 770, 771, 1, 771 );
    							break;

    						case AdditiveBlending:
    							gl.blendFunc( 770, 1 );
    							break;

    						case SubtractiveBlending:
    							gl.blendFuncSeparate( 0, 769, 0, 1 );
    							break;

    						case MultiplyBlending:
    							gl.blendFunc( 0, 768 );
    							break;

    						default:
    							console.error( 'THREE.WebGLState: Invalid blending: ', blending );
    							break;

    					}

    				}

    				currentBlendSrc = null;
    				currentBlendDst = null;
    				currentBlendSrcAlpha = null;
    				currentBlendDstAlpha = null;

    				currentBlending = blending;
    				currentPremultipledAlpha = premultipliedAlpha;

    			}

    			return;

    		}

    		// custom blending

    		blendEquationAlpha = blendEquationAlpha || blendEquation;
    		blendSrcAlpha = blendSrcAlpha || blendSrc;
    		blendDstAlpha = blendDstAlpha || blendDst;

    		if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {

    			gl.blendEquationSeparate( equationToGL[ blendEquation ], equationToGL[ blendEquationAlpha ] );

    			currentBlendEquation = blendEquation;
    			currentBlendEquationAlpha = blendEquationAlpha;

    		}

    		if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {

    			gl.blendFuncSeparate( factorToGL[ blendSrc ], factorToGL[ blendDst ], factorToGL[ blendSrcAlpha ], factorToGL[ blendDstAlpha ] );

    			currentBlendSrc = blendSrc;
    			currentBlendDst = blendDst;
    			currentBlendSrcAlpha = blendSrcAlpha;
    			currentBlendDstAlpha = blendDstAlpha;

    		}

    		currentBlending = blending;
    		currentPremultipledAlpha = null;

    	}

    	function setMaterial( material, frontFaceCW ) {

    		material.side === DoubleSide
    			? disable( 2884 )
    			: enable( 2884 );

    		let flipSided = ( material.side === BackSide );
    		if ( frontFaceCW ) flipSided = ! flipSided;

    		setFlipSided( flipSided );

    		( material.blending === NormalBlending && material.transparent === false )
    			? setBlending( NoBlending )
    			: setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );

    		depthBuffer.setFunc( material.depthFunc );
    		depthBuffer.setTest( material.depthTest );
    		depthBuffer.setMask( material.depthWrite );
    		colorBuffer.setMask( material.colorWrite );

    		const stencilWrite = material.stencilWrite;
    		stencilBuffer.setTest( stencilWrite );
    		if ( stencilWrite ) {

    			stencilBuffer.setMask( material.stencilWriteMask );
    			stencilBuffer.setFunc( material.stencilFunc, material.stencilRef, material.stencilFuncMask );
    			stencilBuffer.setOp( material.stencilFail, material.stencilZFail, material.stencilZPass );

    		}

    		setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );

    		material.alphaToCoverage === true
    			? enable( 32926 )
    			: disable( 32926 );

    	}

    	//

    	function setFlipSided( flipSided ) {

    		if ( currentFlipSided !== flipSided ) {

    			if ( flipSided ) {

    				gl.frontFace( 2304 );

    			} else {

    				gl.frontFace( 2305 );

    			}

    			currentFlipSided = flipSided;

    		}

    	}

    	function setCullFace( cullFace ) {

    		if ( cullFace !== CullFaceNone ) {

    			enable( 2884 );

    			if ( cullFace !== currentCullFace ) {

    				if ( cullFace === CullFaceBack ) {

    					gl.cullFace( 1029 );

    				} else if ( cullFace === CullFaceFront ) {

    					gl.cullFace( 1028 );

    				} else {

    					gl.cullFace( 1032 );

    				}

    			}

    		} else {

    			disable( 2884 );

    		}

    		currentCullFace = cullFace;

    	}

    	function setLineWidth( width ) {

    		if ( width !== currentLineWidth ) {

    			if ( lineWidthAvailable ) gl.lineWidth( width );

    			currentLineWidth = width;

    		}

    	}

    	function setPolygonOffset( polygonOffset, factor, units ) {

    		if ( polygonOffset ) {

    			enable( 32823 );

    			if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {

    				gl.polygonOffset( factor, units );

    				currentPolygonOffsetFactor = factor;
    				currentPolygonOffsetUnits = units;

    			}

    		} else {

    			disable( 32823 );

    		}

    	}

    	function setScissorTest( scissorTest ) {

    		if ( scissorTest ) {

    			enable( 3089 );

    		} else {

    			disable( 3089 );

    		}

    	}

    	// texture

    	function activeTexture( webglSlot ) {

    		if ( webglSlot === undefined ) webglSlot = 33984 + maxTextures - 1;

    		if ( currentTextureSlot !== webglSlot ) {

    			gl.activeTexture( webglSlot );
    			currentTextureSlot = webglSlot;

    		}

    	}

    	function bindTexture( webglType, webglTexture, webglSlot ) {

    		if ( webglSlot === undefined ) {

    			if ( currentTextureSlot === null ) {

    				webglSlot = 33984 + maxTextures - 1;

    			} else {

    				webglSlot = currentTextureSlot;

    			}

    		}

    		let boundTexture = currentBoundTextures[ webglSlot ];

    		if ( boundTexture === undefined ) {

    			boundTexture = { type: undefined, texture: undefined };
    			currentBoundTextures[ webglSlot ] = boundTexture;

    		}

    		if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {

    			if ( currentTextureSlot !== webglSlot ) {

    				gl.activeTexture( webglSlot );
    				currentTextureSlot = webglSlot;

    			}

    			gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );

    			boundTexture.type = webglType;
    			boundTexture.texture = webglTexture;

    		}

    	}

    	function unbindTexture() {

    		const boundTexture = currentBoundTextures[ currentTextureSlot ];

    		if ( boundTexture !== undefined && boundTexture.type !== undefined ) {

    			gl.bindTexture( boundTexture.type, null );

    			boundTexture.type = undefined;
    			boundTexture.texture = undefined;

    		}

    	}

    	function compressedTexImage2D() {

    		try {

    			gl.compressedTexImage2D.apply( gl, arguments );

    		} catch ( error ) {

    			console.error( 'THREE.WebGLState:', error );

    		}

    	}

    	function texSubImage2D() {

    		try {

    			gl.texSubImage2D.apply( gl, arguments );

    		} catch ( error ) {

    			console.error( 'THREE.WebGLState:', error );

    		}

    	}

    	function texSubImage3D() {

    		try {

    			gl.texSubImage3D.apply( gl, arguments );

    		} catch ( error ) {

    			console.error( 'THREE.WebGLState:', error );

    		}

    	}

    	function compressedTexSubImage2D() {

    		try {

    			gl.compressedTexSubImage2D.apply( gl, arguments );

    		} catch ( error ) {

    			console.error( 'THREE.WebGLState:', error );

    		}

    	}

    	function texStorage2D() {

    		try {

    			gl.texStorage2D.apply( gl, arguments );

    		} catch ( error ) {

    			console.error( 'THREE.WebGLState:', error );

    		}

    	}

    	function texStorage3D() {

    		try {

    			gl.texStorage3D.apply( gl, arguments );

    		} catch ( error ) {

    			console.error( 'THREE.WebGLState:', error );

    		}

    	}

    	function texImage2D() {

    		try {

    			gl.texImage2D.apply( gl, arguments );

    		} catch ( error ) {

    			console.error( 'THREE.WebGLState:', error );

    		}

    	}

    	function texImage3D() {

    		try {

    			gl.texImage3D.apply( gl, arguments );

    		} catch ( error ) {

    			console.error( 'THREE.WebGLState:', error );

    		}

    	}

    	//

    	function scissor( scissor ) {

    		if ( currentScissor.equals( scissor ) === false ) {

    			gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
    			currentScissor.copy( scissor );

    		}

    	}

    	function viewport( viewport ) {

    		if ( currentViewport.equals( viewport ) === false ) {

    			gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
    			currentViewport.copy( viewport );

    		}

    	}

    	function updateUBOMapping( uniformsGroup, program ) {

    		let mapping = uboProgamMap.get( program );

    		if ( mapping === undefined ) {

    			mapping = new WeakMap();

    			uboProgamMap.set( program, mapping );

    		}

    		let blockIndex = mapping.get( uniformsGroup );

    		if ( blockIndex === undefined ) {

    			blockIndex = gl.getUniformBlockIndex( program, uniformsGroup.name );

    			mapping.set( uniformsGroup, blockIndex );

    		}

    	}

    	function uniformBlockBinding( uniformsGroup, program ) {

    		const mapping = uboProgamMap.get( program );
    		const blockIndex = mapping.get( uniformsGroup );

    		if ( uboBindings.get( uniformsGroup ) !== blockIndex ) {

    			// bind shader specific block index to global block point

    			gl.uniformBlockBinding( program, blockIndex, uniformsGroup.__bindingPointIndex );

    			uboBindings.set( uniformsGroup, blockIndex );

    		}

    	}

    	//

    	function reset() {

    		// reset state

    		gl.disable( 3042 );
    		gl.disable( 2884 );
    		gl.disable( 2929 );
    		gl.disable( 32823 );
    		gl.disable( 3089 );
    		gl.disable( 2960 );
    		gl.disable( 32926 );

    		gl.blendEquation( 32774 );
    		gl.blendFunc( 1, 0 );
    		gl.blendFuncSeparate( 1, 0, 1, 0 );

    		gl.colorMask( true, true, true, true );
    		gl.clearColor( 0, 0, 0, 0 );

    		gl.depthMask( true );
    		gl.depthFunc( 513 );
    		gl.clearDepth( 1 );

    		gl.stencilMask( 0xffffffff );
    		gl.stencilFunc( 519, 0, 0xffffffff );
    		gl.stencilOp( 7680, 7680, 7680 );
    		gl.clearStencil( 0 );

    		gl.cullFace( 1029 );
    		gl.frontFace( 2305 );

    		gl.polygonOffset( 0, 0 );

    		gl.activeTexture( 33984 );

    		gl.bindFramebuffer( 36160, null );

    		if ( isWebGL2 === true ) {

    			gl.bindFramebuffer( 36009, null );
    			gl.bindFramebuffer( 36008, null );

    		}

    		gl.useProgram( null );

    		gl.lineWidth( 1 );

    		gl.scissor( 0, 0, gl.canvas.width, gl.canvas.height );
    		gl.viewport( 0, 0, gl.canvas.width, gl.canvas.height );

    		// reset internals

    		enabledCapabilities = {};

    		currentTextureSlot = null;
    		currentBoundTextures = {};

    		currentBoundFramebuffers = {};
    		currentDrawbuffers = new WeakMap();
    		defaultDrawbuffers = [];

    		currentProgram = null;

    		currentBlendingEnabled = false;
    		currentBlending = null;
    		currentBlendEquation = null;
    		currentBlendSrc = null;
    		currentBlendDst = null;
    		currentBlendEquationAlpha = null;
    		currentBlendSrcAlpha = null;
    		currentBlendDstAlpha = null;
    		currentPremultipledAlpha = false;

    		currentFlipSided = null;
    		currentCullFace = null;

    		currentLineWidth = null;

    		currentPolygonOffsetFactor = null;
    		currentPolygonOffsetUnits = null;

    		currentScissor.set( 0, 0, gl.canvas.width, gl.canvas.height );
    		currentViewport.set( 0, 0, gl.canvas.width, gl.canvas.height );

    		colorBuffer.reset();
    		depthBuffer.reset();
    		stencilBuffer.reset();

    	}

    	return {

    		buffers: {
    			color: colorBuffer,
    			depth: depthBuffer,
    			stencil: stencilBuffer
    		},

    		enable: enable,
    		disable: disable,

    		bindFramebuffer: bindFramebuffer,
    		drawBuffers: drawBuffers,

    		useProgram: useProgram,

    		setBlending: setBlending,
    		setMaterial: setMaterial,

    		setFlipSided: setFlipSided,
    		setCullFace: setCullFace,

    		setLineWidth: setLineWidth,
    		setPolygonOffset: setPolygonOffset,

    		setScissorTest: setScissorTest,

    		activeTexture: activeTexture,
    		bindTexture: bindTexture,
    		unbindTexture: unbindTexture,
    		compressedTexImage2D: compressedTexImage2D,
    		texImage2D: texImage2D,
    		texImage3D: texImage3D,

    		updateUBOMapping: updateUBOMapping,
    		uniformBlockBinding: uniformBlockBinding,

    		texStorage2D: texStorage2D,
    		texStorage3D: texStorage3D,
    		texSubImage2D: texSubImage2D,
    		texSubImage3D: texSubImage3D,
    		compressedTexSubImage2D: compressedTexSubImage2D,

    		scissor: scissor,
    		viewport: viewport,

    		reset: reset

    	};

    }

    function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) {

    	const isWebGL2 = capabilities.isWebGL2;
    	const maxTextures = capabilities.maxTextures;
    	const maxCubemapSize = capabilities.maxCubemapSize;
    	const maxTextureSize = capabilities.maxTextureSize;
    	const maxSamples = capabilities.maxSamples;
    	const multisampledRTTExt = extensions.has( 'WEBGL_multisampled_render_to_texture' ) ? extensions.get( 'WEBGL_multisampled_render_to_texture' ) : null;
    	const supportsInvalidateFramebuffer = /OculusBrowser/g.test( navigator.userAgent );

    	const _videoTextures = new WeakMap();
    	let _canvas;

    	const _sources = new WeakMap(); // maps WebglTexture objects to instances of Source

    	// cordova iOS (as of 5.0) still uses UIWebView, which provides OffscreenCanvas,
    	// also OffscreenCanvas.getContext("webgl"), but not OffscreenCanvas.getContext("2d")!
    	// Some implementations may only implement OffscreenCanvas partially (e.g. lacking 2d).

    	let useOffscreenCanvas = false;

    	try {

    		useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined'
    			// eslint-disable-next-line compat/compat
    			&& ( new OffscreenCanvas( 1, 1 ).getContext( '2d' ) ) !== null;

    	} catch ( err ) {

    		// Ignore any errors

    	}

    	function createCanvas( width, height ) {

    		// Use OffscreenCanvas when available. Specially needed in web workers

    		return useOffscreenCanvas ?
    			// eslint-disable-next-line compat/compat
    			new OffscreenCanvas( width, height ) : createElementNS( 'canvas' );

    	}

    	function resizeImage( image, needsPowerOfTwo, needsNewCanvas, maxSize ) {

    		let scale = 1;

    		// handle case if texture exceeds max size

    		if ( image.width > maxSize || image.height > maxSize ) {

    			scale = maxSize / Math.max( image.width, image.height );

    		}

    		// only perform resize if necessary

    		if ( scale < 1 || needsPowerOfTwo === true ) {

    			// only perform resize for certain image types

    			if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) ||
    				( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) ||
    				( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) {

    				const floor = needsPowerOfTwo ? floorPowerOfTwo : Math.floor;

    				const width = floor( scale * image.width );
    				const height = floor( scale * image.height );

    				if ( _canvas === undefined ) _canvas = createCanvas( width, height );

    				// cube textures can't reuse the same canvas

    				const canvas = needsNewCanvas ? createCanvas( width, height ) : _canvas;

    				canvas.width = width;
    				canvas.height = height;

    				const context = canvas.getContext( '2d' );
    				context.drawImage( image, 0, 0, width, height );

    				console.warn( 'THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').' );

    				return canvas;

    			} else {

    				if ( 'data' in image ) {

    					console.warn( 'THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').' );

    				}

    				return image;

    			}

    		}

    		return image;

    	}

    	function isPowerOfTwo$1( image ) {

    		return isPowerOfTwo( image.width ) && isPowerOfTwo( image.height );

    	}

    	function textureNeedsPowerOfTwo( texture ) {

    		if ( isWebGL2 ) return false;

    		return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||
    			( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );

    	}

    	function textureNeedsGenerateMipmaps( texture, supportsMips ) {

    		return texture.generateMipmaps && supportsMips &&
    			texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;

    	}

    	function generateMipmap( target ) {

    		_gl.generateMipmap( target );

    	}

    	function getInternalFormat( internalFormatName, glFormat, glType, encoding, forceLinearEncoding = false ) {

    		if ( isWebGL2 === false ) return glFormat;

    		if ( internalFormatName !== null ) {

    			if ( _gl[ internalFormatName ] !== undefined ) return _gl[ internalFormatName ];

    			console.warn( 'THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \'' + internalFormatName + '\'' );

    		}

    		let internalFormat = glFormat;

    		if ( glFormat === 6403 ) {

    			if ( glType === 5126 ) internalFormat = 33326;
    			if ( glType === 5131 ) internalFormat = 33325;
    			if ( glType === 5121 ) internalFormat = 33321;

    		}

    		if ( glFormat === 33319 ) {

    			if ( glType === 5126 ) internalFormat = 33328;
    			if ( glType === 5131 ) internalFormat = 33327;
    			if ( glType === 5121 ) internalFormat = 33323;

    		}

    		if ( glFormat === 6408 ) {

    			if ( glType === 5126 ) internalFormat = 34836;
    			if ( glType === 5131 ) internalFormat = 34842;
    			if ( glType === 5121 ) internalFormat = ( encoding === sRGBEncoding && forceLinearEncoding === false ) ? 35907 : 32856;
    			if ( glType === 32819 ) internalFormat = 32854;
    			if ( glType === 32820 ) internalFormat = 32855;

    		}

    		if ( internalFormat === 33325 || internalFormat === 33326 ||
    			internalFormat === 33327 || internalFormat === 33328 ||
    			internalFormat === 34842 || internalFormat === 34836 ) {

    			extensions.get( 'EXT_color_buffer_float' );

    		}

    		return internalFormat;

    	}

    	function getMipLevels( texture, image, supportsMips ) {

    		if ( textureNeedsGenerateMipmaps( texture, supportsMips ) === true || ( texture.isFramebufferTexture && texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) ) {

    			return Math.log2( Math.max( image.width, image.height ) ) + 1;

    		} else if ( texture.mipmaps !== undefined && texture.mipmaps.length > 0 ) {

    			// user-defined mipmaps

    			return texture.mipmaps.length;

    		} else if ( texture.isCompressedTexture && Array.isArray( texture.image ) ) {

    			return image.mipmaps.length;

    		} else {

    			// texture without mipmaps (only base level)

    			return 1;

    		}

    	}

    	// Fallback filters for non-power-of-2 textures

    	function filterFallback( f ) {

    		if ( f === NearestFilter || f === NearestMipmapNearestFilter || f === NearestMipmapLinearFilter ) {

    			return 9728;

    		}

    		return 9729;

    	}

    	//

    	function onTextureDispose( event ) {

    		const texture = event.target;

    		texture.removeEventListener( 'dispose', onTextureDispose );

    		deallocateTexture( texture );

    		if ( texture.isVideoTexture ) {

    			_videoTextures.delete( texture );

    		}

    	}

    	function onRenderTargetDispose( event ) {

    		const renderTarget = event.target;

    		renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );

    		deallocateRenderTarget( renderTarget );

    	}

    	//

    	function deallocateTexture( texture ) {

    		const textureProperties = properties.get( texture );

    		if ( textureProperties.__webglInit === undefined ) return;

    		// check if it's necessary to remove the WebGLTexture object

    		const source = texture.source;
    		const webglTextures = _sources.get( source );

    		if ( webglTextures ) {

    			const webglTexture = webglTextures[ textureProperties.__cacheKey ];
    			webglTexture.usedTimes --;

    			// the WebGLTexture object is not used anymore, remove it

    			if ( webglTexture.usedTimes === 0 ) {

    				deleteTexture( texture );

    			}

    			// remove the weak map entry if no WebGLTexture uses the source anymore

    			if ( Object.keys( webglTextures ).length === 0 ) {

    				_sources.delete( source );

    			}

    		}

    		properties.remove( texture );

    	}

    	function deleteTexture( texture ) {

    		const textureProperties = properties.get( texture );
    		_gl.deleteTexture( textureProperties.__webglTexture );

    		const source = texture.source;
    		const webglTextures = _sources.get( source );
    		delete webglTextures[ textureProperties.__cacheKey ];

    		info.memory.textures --;

    	}

    	function deallocateRenderTarget( renderTarget ) {

    		const texture = renderTarget.texture;

    		const renderTargetProperties = properties.get( renderTarget );
    		const textureProperties = properties.get( texture );

    		if ( textureProperties.__webglTexture !== undefined ) {

    			_gl.deleteTexture( textureProperties.__webglTexture );

    			info.memory.textures --;

    		}

    		if ( renderTarget.depthTexture ) {

    			renderTarget.depthTexture.dispose();

    		}

    		if ( renderTarget.isWebGLCubeRenderTarget ) {

    			for ( let i = 0; i < 6; i ++ ) {

    				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
    				if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );

    			}

    		} else {

    			_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
    			if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );
    			if ( renderTargetProperties.__webglMultisampledFramebuffer ) _gl.deleteFramebuffer( renderTargetProperties.__webglMultisampledFramebuffer );

    			if ( renderTargetProperties.__webglColorRenderbuffer ) {

    				for ( let i = 0; i < renderTargetProperties.__webglColorRenderbuffer.length; i ++ ) {

    					if ( renderTargetProperties.__webglColorRenderbuffer[ i ] ) _gl.deleteRenderbuffer( renderTargetProperties.__webglColorRenderbuffer[ i ] );

    				}

    			}

    			if ( renderTargetProperties.__webglDepthRenderbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthRenderbuffer );

    		}

    		if ( renderTarget.isWebGLMultipleRenderTargets ) {

    			for ( let i = 0, il = texture.length; i < il; i ++ ) {

    				const attachmentProperties = properties.get( texture[ i ] );

    				if ( attachmentProperties.__webglTexture ) {

    					_gl.deleteTexture( attachmentProperties.__webglTexture );

    					info.memory.textures --;

    				}

    				properties.remove( texture[ i ] );

    			}

    		}

    		properties.remove( texture );
    		properties.remove( renderTarget );

    	}

    	//

    	let textureUnits = 0;

    	function resetTextureUnits() {

    		textureUnits = 0;

    	}

    	function allocateTextureUnit() {

    		const textureUnit = textureUnits;

    		if ( textureUnit >= maxTextures ) {

    			console.warn( 'THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + maxTextures );

    		}

    		textureUnits += 1;

    		return textureUnit;

    	}

    	function getTextureCacheKey( texture ) {

    		const array = [];

    		array.push( texture.wrapS );
    		array.push( texture.wrapT );
    		array.push( texture.magFilter );
    		array.push( texture.minFilter );
    		array.push( texture.anisotropy );
    		array.push( texture.internalFormat );
    		array.push( texture.format );
    		array.push( texture.type );
    		array.push( texture.generateMipmaps );
    		array.push( texture.premultiplyAlpha );
    		array.push( texture.flipY );
    		array.push( texture.unpackAlignment );
    		array.push( texture.encoding );

    		return array.join();

    	}

    	//

    	function setTexture2D( texture, slot ) {

    		const textureProperties = properties.get( texture );

    		if ( texture.isVideoTexture ) updateVideoTexture( texture );

    		if ( texture.isRenderTargetTexture === false && texture.version > 0 && textureProperties.__version !== texture.version ) {

    			const image = texture.image;

    			if ( image === null ) {

    				console.warn( 'THREE.WebGLRenderer: Texture marked for update but no image data found.' );

    			} else if ( image.complete === false ) {

    				console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' );

    			} else {

    				uploadTexture( textureProperties, texture, slot );
    				return;

    			}

    		}

    		state.bindTexture( 3553, textureProperties.__webglTexture, 33984 + slot );

    	}

    	function setTexture2DArray( texture, slot ) {

    		const textureProperties = properties.get( texture );

    		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

    			uploadTexture( textureProperties, texture, slot );
    			return;

    		}

    		state.bindTexture( 35866, textureProperties.__webglTexture, 33984 + slot );

    	}

    	function setTexture3D( texture, slot ) {

    		const textureProperties = properties.get( texture );

    		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

    			uploadTexture( textureProperties, texture, slot );
    			return;

    		}

    		state.bindTexture( 32879, textureProperties.__webglTexture, 33984 + slot );

    	}

    	function setTextureCube( texture, slot ) {

    		const textureProperties = properties.get( texture );

    		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

    			uploadCubeTexture( textureProperties, texture, slot );
    			return;

    		}

    		state.bindTexture( 34067, textureProperties.__webglTexture, 33984 + slot );

    	}

    	const wrappingToGL = {
    		[ RepeatWrapping ]: 10497,
    		[ ClampToEdgeWrapping ]: 33071,
    		[ MirroredRepeatWrapping ]: 33648
    	};

    	const filterToGL = {
    		[ NearestFilter ]: 9728,
    		[ NearestMipmapNearestFilter ]: 9984,
    		[ NearestMipmapLinearFilter ]: 9986,

    		[ LinearFilter ]: 9729,
    		[ LinearMipmapNearestFilter ]: 9985,
    		[ LinearMipmapLinearFilter ]: 9987
    	};

    	function setTextureParameters( textureType, texture, supportsMips ) {

    		if ( supportsMips ) {

    			_gl.texParameteri( textureType, 10242, wrappingToGL[ texture.wrapS ] );
    			_gl.texParameteri( textureType, 10243, wrappingToGL[ texture.wrapT ] );

    			if ( textureType === 32879 || textureType === 35866 ) {

    				_gl.texParameteri( textureType, 32882, wrappingToGL[ texture.wrapR ] );

    			}

    			_gl.texParameteri( textureType, 10240, filterToGL[ texture.magFilter ] );
    			_gl.texParameteri( textureType, 10241, filterToGL[ texture.minFilter ] );

    		} else {

    			_gl.texParameteri( textureType, 10242, 33071 );
    			_gl.texParameteri( textureType, 10243, 33071 );

    			if ( textureType === 32879 || textureType === 35866 ) {

    				_gl.texParameteri( textureType, 32882, 33071 );

    			}

    			if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {

    				console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' );

    			}

    			_gl.texParameteri( textureType, 10240, filterFallback( texture.magFilter ) );
    			_gl.texParameteri( textureType, 10241, filterFallback( texture.minFilter ) );

    			if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {

    				console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' );

    			}

    		}

    		if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) {

    			const extension = extensions.get( 'EXT_texture_filter_anisotropic' );

    			if ( texture.type === FloatType && extensions.has( 'OES_texture_float_linear' ) === false ) return; // verify extension for WebGL 1 and WebGL 2
    			if ( isWebGL2 === false && ( texture.type === HalfFloatType && extensions.has( 'OES_texture_half_float_linear' ) === false ) ) return; // verify extension for WebGL 1 only

    			if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {

    				_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );
    				properties.get( texture ).__currentAnisotropy = texture.anisotropy;

    			}

    		}

    	}

    	function initTexture( textureProperties, texture ) {

    		let forceUpload = false;

    		if ( textureProperties.__webglInit === undefined ) {

    			textureProperties.__webglInit = true;

    			texture.addEventListener( 'dispose', onTextureDispose );

    		}

    		// create Source <-> WebGLTextures mapping if necessary

    		const source = texture.source;
    		let webglTextures = _sources.get( source );

    		if ( webglTextures === undefined ) {

    			webglTextures = {};
    			_sources.set( source, webglTextures );

    		}

    		// check if there is already a WebGLTexture object for the given texture parameters

    		const textureCacheKey = getTextureCacheKey( texture );

    		if ( textureCacheKey !== textureProperties.__cacheKey ) {

    			// if not, create a new instance of WebGLTexture

    			if ( webglTextures[ textureCacheKey ] === undefined ) {

    				// create new entry

    				webglTextures[ textureCacheKey ] = {
    					texture: _gl.createTexture(),
    					usedTimes: 0
    				};

    				info.memory.textures ++;

    				// when a new instance of WebGLTexture was created, a texture upload is required
    				// even if the image contents are identical

    				forceUpload = true;

    			}

    			webglTextures[ textureCacheKey ].usedTimes ++;

    			// every time the texture cache key changes, it's necessary to check if an instance of
    			// WebGLTexture can be deleted in order to avoid a memory leak.

    			const webglTexture = webglTextures[ textureProperties.__cacheKey ];

    			if ( webglTexture !== undefined ) {

    				webglTextures[ textureProperties.__cacheKey ].usedTimes --;

    				if ( webglTexture.usedTimes === 0 ) {

    					deleteTexture( texture );

    				}

    			}

    			// store references to cache key and WebGLTexture object

    			textureProperties.__cacheKey = textureCacheKey;
    			textureProperties.__webglTexture = webglTextures[ textureCacheKey ].texture;

    		}

    		return forceUpload;

    	}

    	function uploadTexture( textureProperties, texture, slot ) {

    		let textureType = 3553;

    		if ( texture.isDataArrayTexture ) textureType = 35866;
    		if ( texture.isData3DTexture ) textureType = 32879;

    		const forceUpload = initTexture( textureProperties, texture );
    		const source = texture.source;

    		state.bindTexture( textureType, textureProperties.__webglTexture, 33984 + slot );

    		const sourceProperties = properties.get( source );

    		if ( source.version !== sourceProperties.__version || forceUpload === true ) {

    			state.activeTexture( 33984 + slot );

    			_gl.pixelStorei( 37440, texture.flipY );
    			_gl.pixelStorei( 37441, texture.premultiplyAlpha );
    			_gl.pixelStorei( 3317, texture.unpackAlignment );
    			_gl.pixelStorei( 37443, 0 );

    			const needsPowerOfTwo = textureNeedsPowerOfTwo( texture ) && isPowerOfTwo$1( texture.image ) === false;
    			let image = resizeImage( texture.image, needsPowerOfTwo, false, maxTextureSize );
    			image = verifyColorSpace( texture, image );

    			const supportsMips = isPowerOfTwo$1( image ) || isWebGL2,
    				glFormat = utils.convert( texture.format, texture.encoding );

    			let glType = utils.convert( texture.type ),
    				glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding, texture.isVideoTexture );

    			setTextureParameters( textureType, texture, supportsMips );

    			let mipmap;
    			const mipmaps = texture.mipmaps;

    			const useTexStorage = ( isWebGL2 && texture.isVideoTexture !== true );
    			const allocateMemory = ( sourceProperties.__version === undefined ) || ( forceUpload === true );
    			const levels = getMipLevels( texture, image, supportsMips );

    			if ( texture.isDepthTexture ) {

    				// populate depth texture with dummy data

    				glInternalFormat = 6402;

    				if ( isWebGL2 ) {

    					if ( texture.type === FloatType ) {

    						glInternalFormat = 36012;

    					} else if ( texture.type === UnsignedIntType ) {

    						glInternalFormat = 33190;

    					} else if ( texture.type === UnsignedInt248Type ) {

    						glInternalFormat = 35056;

    					} else {

    						glInternalFormat = 33189; // WebGL2 requires sized internalformat for glTexImage2D

    					}

    				} else {

    					if ( texture.type === FloatType ) {

    						console.error( 'WebGLRenderer: Floating point depth texture requires WebGL2.' );

    					}

    				}

    				// validation checks for WebGL 1

    				if ( texture.format === DepthFormat && glInternalFormat === 6402 ) {

    					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
    					// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
    					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
    					if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {

    						console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );

    						texture.type = UnsignedIntType;
    						glType = utils.convert( texture.type );

    					}

    				}

    				if ( texture.format === DepthStencilFormat && glInternalFormat === 6402 ) {

    					// Depth stencil textures need the DEPTH_STENCIL internal format
    					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
    					glInternalFormat = 34041;

    					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
    					// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
    					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
    					if ( texture.type !== UnsignedInt248Type ) {

    						console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );

    						texture.type = UnsignedInt248Type;
    						glType = utils.convert( texture.type );

    					}

    				}

    				//

    				if ( allocateMemory ) {

    					if ( useTexStorage ) {

    						state.texStorage2D( 3553, 1, glInternalFormat, image.width, image.height );

    					} else {

    						state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null );

    					}

    				}

    			} else if ( texture.isDataTexture ) {

    				// use manually created mipmaps if available
    				// if there are no manual mipmaps
    				// set 0 level mipmap and then use GL to generate other mipmap levels

    				if ( mipmaps.length > 0 && supportsMips ) {

    					if ( useTexStorage && allocateMemory ) {

    						state.texStorage2D( 3553, levels, glInternalFormat, mipmaps[ 0 ].width, mipmaps[ 0 ].height );

    					}

    					for ( let i = 0, il = mipmaps.length; i < il; i ++ ) {

    						mipmap = mipmaps[ i ];

    						if ( useTexStorage ) {

    							state.texSubImage2D( 3553, i, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data );

    						} else {

    							state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

    						}

    					}

    					texture.generateMipmaps = false;

    				} else {

    					if ( useTexStorage ) {

    						if ( allocateMemory ) {

    							state.texStorage2D( 3553, levels, glInternalFormat, image.width, image.height );

    						}

    						state.texSubImage2D( 3553, 0, 0, 0, image.width, image.height, glFormat, glType, image.data );

    					} else {

    						state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data );

    					}

    				}

    			} else if ( texture.isCompressedTexture ) {

    				if ( useTexStorage && allocateMemory ) {

    					state.texStorage2D( 3553, levels, glInternalFormat, mipmaps[ 0 ].width, mipmaps[ 0 ].height );

    				}

    				for ( let i = 0, il = mipmaps.length; i < il; i ++ ) {

    					mipmap = mipmaps[ i ];

    					if ( texture.format !== RGBAFormat ) {

    						if ( glFormat !== null ) {

    							if ( useTexStorage ) {

    								state.compressedTexSubImage2D( 3553, i, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data );

    							} else {

    								state.compressedTexImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );

    							}

    						} else {

    							console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );

    						}

    					} else {

    						if ( useTexStorage ) {

    							state.texSubImage2D( 3553, i, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data );

    						} else {

    							state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

    						}

    					}

    				}

    			} else if ( texture.isDataArrayTexture ) {

    				if ( useTexStorage ) {

    					if ( allocateMemory ) {

    						state.texStorage3D( 35866, levels, glInternalFormat, image.width, image.height, image.depth );

    					}

    					state.texSubImage3D( 35866, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data );

    				} else {

    					state.texImage3D( 35866, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data );

    				}

    			} else if ( texture.isData3DTexture ) {

    				if ( useTexStorage ) {

    					if ( allocateMemory ) {

    						state.texStorage3D( 32879, levels, glInternalFormat, image.width, image.height, image.depth );

    					}

    					state.texSubImage3D( 32879, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data );

    				} else {

    					state.texImage3D( 32879, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data );

    				}

    			} else if ( texture.isFramebufferTexture ) {

    				if ( allocateMemory ) {

    					if ( useTexStorage ) {

    						state.texStorage2D( 3553, levels, glInternalFormat, image.width, image.height );

    					} else {

    						let width = image.width, height = image.height;

    						for ( let i = 0; i < levels; i ++ ) {

    							state.texImage2D( 3553, i, glInternalFormat, width, height, 0, glFormat, glType, null );

    							width >>= 1;
    							height >>= 1;

    						}

    					}

    				}

    			} else {

    				// regular Texture (image, video, canvas)

    				// use manually created mipmaps if available
    				// if there are no manual mipmaps
    				// set 0 level mipmap and then use GL to generate other mipmap levels

    				if ( mipmaps.length > 0 && supportsMips ) {

    					if ( useTexStorage && allocateMemory ) {

    						state.texStorage2D( 3553, levels, glInternalFormat, mipmaps[ 0 ].width, mipmaps[ 0 ].height );

    					}

    					for ( let i = 0, il = mipmaps.length; i < il; i ++ ) {

    						mipmap = mipmaps[ i ];

    						if ( useTexStorage ) {

    							state.texSubImage2D( 3553, i, 0, 0, glFormat, glType, mipmap );

    						} else {

    							state.texImage2D( 3553, i, glInternalFormat, glFormat, glType, mipmap );

    						}

    					}

    					texture.generateMipmaps = false;

    				} else {

    					if ( useTexStorage ) {

    						if ( allocateMemory ) {

    							state.texStorage2D( 3553, levels, glInternalFormat, image.width, image.height );

    						}

    						state.texSubImage2D( 3553, 0, 0, 0, glFormat, glType, image );

    					} else {

    						state.texImage2D( 3553, 0, glInternalFormat, glFormat, glType, image );

    					}

    				}

    			}

    			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

    				generateMipmap( textureType );

    			}

    			sourceProperties.__version = source.version;

    			if ( texture.onUpdate ) texture.onUpdate( texture );

    		}

    		textureProperties.__version = texture.version;

    	}

    	function uploadCubeTexture( textureProperties, texture, slot ) {

    		if ( texture.image.length !== 6 ) return;

    		const forceUpload = initTexture( textureProperties, texture );
    		const source = texture.source;

    		state.bindTexture( 34067, textureProperties.__webglTexture, 33984 + slot );

    		const sourceProperties = properties.get( source );

    		if ( source.version !== sourceProperties.__version || forceUpload === true ) {

    			state.activeTexture( 33984 + slot );

    			_gl.pixelStorei( 37440, texture.flipY );
    			_gl.pixelStorei( 37441, texture.premultiplyAlpha );
    			_gl.pixelStorei( 3317, texture.unpackAlignment );
    			_gl.pixelStorei( 37443, 0 );

    			const isCompressed = ( texture.isCompressedTexture || texture.image[ 0 ].isCompressedTexture );
    			const isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );

    			const cubeImage = [];

    			for ( let i = 0; i < 6; i ++ ) {

    				if ( ! isCompressed && ! isDataTexture ) {

    					cubeImage[ i ] = resizeImage( texture.image[ i ], false, true, maxCubemapSize );

    				} else {

    					cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];

    				}

    				cubeImage[ i ] = verifyColorSpace( texture, cubeImage[ i ] );

    			}

    			const image = cubeImage[ 0 ],
    				supportsMips = isPowerOfTwo$1( image ) || isWebGL2,
    				glFormat = utils.convert( texture.format, texture.encoding ),
    				glType = utils.convert( texture.type ),
    				glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding );

    			const useTexStorage = ( isWebGL2 && texture.isVideoTexture !== true );
    			const allocateMemory = ( sourceProperties.__version === undefined ) || ( forceUpload === true );
    			let levels = getMipLevels( texture, image, supportsMips );

    			setTextureParameters( 34067, texture, supportsMips );

    			let mipmaps;

    			if ( isCompressed ) {

    				if ( useTexStorage && allocateMemory ) {

    					state.texStorage2D( 34067, levels, glInternalFormat, image.width, image.height );

    				}

    				for ( let i = 0; i < 6; i ++ ) {

    					mipmaps = cubeImage[ i ].mipmaps;

    					for ( let j = 0; j < mipmaps.length; j ++ ) {

    						const mipmap = mipmaps[ j ];

    						if ( texture.format !== RGBAFormat ) {

    							if ( glFormat !== null ) {

    								if ( useTexStorage ) {

    									state.compressedTexSubImage2D( 34069 + i, j, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data );

    								} else {

    									state.compressedTexImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );

    								}

    							} else {

    								console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );

    							}

    						} else {

    							if ( useTexStorage ) {

    								state.texSubImage2D( 34069 + i, j, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data );

    							} else {

    								state.texImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

    							}

    						}

    					}

    				}

    			} else {

    				mipmaps = texture.mipmaps;

    				if ( useTexStorage && allocateMemory ) {

    					// TODO: Uniformly handle mipmap definitions
    					// Normal textures and compressed cube textures define base level + mips with their mipmap array
    					// Uncompressed cube textures use their mipmap array only for mips (no base level)

    					if ( mipmaps.length > 0 ) levels ++;

    					state.texStorage2D( 34067, levels, glInternalFormat, cubeImage[ 0 ].width, cubeImage[ 0 ].height );

    				}

    				for ( let i = 0; i < 6; i ++ ) {

    					if ( isDataTexture ) {

    						if ( useTexStorage ) {

    							state.texSubImage2D( 34069 + i, 0, 0, 0, cubeImage[ i ].width, cubeImage[ i ].height, glFormat, glType, cubeImage[ i ].data );

    						} else {

    							state.texImage2D( 34069 + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );

    						}

    						for ( let j = 0; j < mipmaps.length; j ++ ) {

    							const mipmap = mipmaps[ j ];
    							const mipmapImage = mipmap.image[ i ].image;

    							if ( useTexStorage ) {

    								state.texSubImage2D( 34069 + i, j + 1, 0, 0, mipmapImage.width, mipmapImage.height, glFormat, glType, mipmapImage.data );

    							} else {

    								state.texImage2D( 34069 + i, j + 1, glInternalFormat, mipmapImage.width, mipmapImage.height, 0, glFormat, glType, mipmapImage.data );

    							}

    						}

    					} else {

    						if ( useTexStorage ) {

    							state.texSubImage2D( 34069 + i, 0, 0, 0, glFormat, glType, cubeImage[ i ] );

    						} else {

    							state.texImage2D( 34069 + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] );

    						}

    						for ( let j = 0; j < mipmaps.length; j ++ ) {

    							const mipmap = mipmaps[ j ];

    							if ( useTexStorage ) {

    								state.texSubImage2D( 34069 + i, j + 1, 0, 0, glFormat, glType, mipmap.image[ i ] );

    							} else {

    								state.texImage2D( 34069 + i, j + 1, glInternalFormat, glFormat, glType, mipmap.image[ i ] );

    							}

    						}

    					}

    				}

    			}

    			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

    				// We assume images for cube map have the same size.
    				generateMipmap( 34067 );

    			}

    			sourceProperties.__version = source.version;

    			if ( texture.onUpdate ) texture.onUpdate( texture );

    		}

    		textureProperties.__version = texture.version;

    	}

    	// Render targets

    	// Setup storage for target texture and bind it to correct framebuffer
    	function setupFrameBufferTexture( framebuffer, renderTarget, texture, attachment, textureTarget ) {

    		const glFormat = utils.convert( texture.format, texture.encoding );
    		const glType = utils.convert( texture.type );
    		const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding );
    		const renderTargetProperties = properties.get( renderTarget );

    		if ( ! renderTargetProperties.__hasExternalTextures ) {

    			if ( textureTarget === 32879 || textureTarget === 35866 ) {

    				state.texImage3D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, renderTarget.depth, 0, glFormat, glType, null );

    			} else {

    				state.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );

    			}

    		}

    		state.bindFramebuffer( 36160, framebuffer );

    		if ( useMultisampledRTT( renderTarget ) ) {

    			multisampledRTTExt.framebufferTexture2DMultisampleEXT( 36160, attachment, textureTarget, properties.get( texture ).__webglTexture, 0, getRenderTargetSamples( renderTarget ) );

    		} else {

    			_gl.framebufferTexture2D( 36160, attachment, textureTarget, properties.get( texture ).__webglTexture, 0 );

    		}

    		state.bindFramebuffer( 36160, null );

    	}


    	// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
    	function setupRenderBufferStorage( renderbuffer, renderTarget, isMultisample ) {

    		_gl.bindRenderbuffer( 36161, renderbuffer );

    		if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {

    			let glInternalFormat = 33189;

    			if ( isMultisample || useMultisampledRTT( renderTarget ) ) {

    				const depthTexture = renderTarget.depthTexture;

    				if ( depthTexture && depthTexture.isDepthTexture ) {

    					if ( depthTexture.type === FloatType ) {

    						glInternalFormat = 36012;

    					} else if ( depthTexture.type === UnsignedIntType ) {

    						glInternalFormat = 33190;

    					}

    				}

    				const samples = getRenderTargetSamples( renderTarget );

    				if ( useMultisampledRTT( renderTarget ) ) {

    					multisampledRTTExt.renderbufferStorageMultisampleEXT( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

    				} else {

    					_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

    				}

    			} else {

    				_gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height );

    			}

    			_gl.framebufferRenderbuffer( 36160, 36096, 36161, renderbuffer );

    		} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {

    			const samples = getRenderTargetSamples( renderTarget );

    			if ( isMultisample && useMultisampledRTT( renderTarget ) === false ) {

    				_gl.renderbufferStorageMultisample( 36161, samples, 35056, renderTarget.width, renderTarget.height );

    			} else if ( useMultisampledRTT( renderTarget ) ) {

    				multisampledRTTExt.renderbufferStorageMultisampleEXT( 36161, samples, 35056, renderTarget.width, renderTarget.height );

    			} else {

    				_gl.renderbufferStorage( 36161, 34041, renderTarget.width, renderTarget.height );

    			}


    			_gl.framebufferRenderbuffer( 36160, 33306, 36161, renderbuffer );

    		} else {

    			const textures = renderTarget.isWebGLMultipleRenderTargets === true ? renderTarget.texture : [ renderTarget.texture ];

    			for ( let i = 0; i < textures.length; i ++ ) {

    				const texture = textures[ i ];

    				const glFormat = utils.convert( texture.format, texture.encoding );
    				const glType = utils.convert( texture.type );
    				const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding );
    				const samples = getRenderTargetSamples( renderTarget );

    				if ( isMultisample && useMultisampledRTT( renderTarget ) === false ) {

    					_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

    				} else if ( useMultisampledRTT( renderTarget ) ) {

    					multisampledRTTExt.renderbufferStorageMultisampleEXT( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

    				} else {

    					_gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height );

    				}

    			}

    		}

    		_gl.bindRenderbuffer( 36161, null );

    	}

    	// Setup resources for a Depth Texture for a FBO (needs an extension)
    	function setupDepthTexture( framebuffer, renderTarget ) {

    		const isCube = ( renderTarget && renderTarget.isWebGLCubeRenderTarget );
    		if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );

    		state.bindFramebuffer( 36160, framebuffer );

    		if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {

    			throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );

    		}

    		// upload an empty depth texture with framebuffer size
    		if ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||
    				renderTarget.depthTexture.image.width !== renderTarget.width ||
    				renderTarget.depthTexture.image.height !== renderTarget.height ) {

    			renderTarget.depthTexture.image.width = renderTarget.width;
    			renderTarget.depthTexture.image.height = renderTarget.height;
    			renderTarget.depthTexture.needsUpdate = true;

    		}

    		setTexture2D( renderTarget.depthTexture, 0 );

    		const webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;
    		const samples = getRenderTargetSamples( renderTarget );

    		if ( renderTarget.depthTexture.format === DepthFormat ) {

    			if ( useMultisampledRTT( renderTarget ) ) {

    				multisampledRTTExt.framebufferTexture2DMultisampleEXT( 36160, 36096, 3553, webglDepthTexture, 0, samples );

    			} else {

    				_gl.framebufferTexture2D( 36160, 36096, 3553, webglDepthTexture, 0 );

    			}

    		} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {

    			if ( useMultisampledRTT( renderTarget ) ) {

    				multisampledRTTExt.framebufferTexture2DMultisampleEXT( 36160, 33306, 3553, webglDepthTexture, 0, samples );

    			} else {

    				_gl.framebufferTexture2D( 36160, 33306, 3553, webglDepthTexture, 0 );

    			}

    		} else {

    			throw new Error( 'Unknown depthTexture format' );

    		}

    	}

    	// Setup GL resources for a non-texture depth buffer
    	function setupDepthRenderbuffer( renderTarget ) {

    		const renderTargetProperties = properties.get( renderTarget );
    		const isCube = ( renderTarget.isWebGLCubeRenderTarget === true );

    		if ( renderTarget.depthTexture && ! renderTargetProperties.__autoAllocateDepthBuffer ) {

    			if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );

    			setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );

    		} else {

    			if ( isCube ) {

    				renderTargetProperties.__webglDepthbuffer = [];

    				for ( let i = 0; i < 6; i ++ ) {

    					state.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer[ i ] );
    					renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
    					setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget, false );

    				}

    			} else {

    				state.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer );
    				renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
    				setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget, false );

    			}

    		}

    		state.bindFramebuffer( 36160, null );

    	}

    	// rebind framebuffer with external textures
    	function rebindTextures( renderTarget, colorTexture, depthTexture ) {

    		const renderTargetProperties = properties.get( renderTarget );

    		if ( colorTexture !== undefined ) {

    			setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, renderTarget.texture, 36064, 3553 );

    		}

    		if ( depthTexture !== undefined ) {

    			setupDepthRenderbuffer( renderTarget );

    		}

    	}

    	// Set up GL resources for the render target
    	function setupRenderTarget( renderTarget ) {

    		const texture = renderTarget.texture;

    		const renderTargetProperties = properties.get( renderTarget );
    		const textureProperties = properties.get( texture );

    		renderTarget.addEventListener( 'dispose', onRenderTargetDispose );

    		if ( renderTarget.isWebGLMultipleRenderTargets !== true ) {

    			if ( textureProperties.__webglTexture === undefined ) {

    				textureProperties.__webglTexture = _gl.createTexture();

    			}

    			textureProperties.__version = texture.version;
    			info.memory.textures ++;

    		}

    		const isCube = ( renderTarget.isWebGLCubeRenderTarget === true );
    		const isMultipleRenderTargets = ( renderTarget.isWebGLMultipleRenderTargets === true );
    		const supportsMips = isPowerOfTwo$1( renderTarget ) || isWebGL2;

    		// Setup framebuffer

    		if ( isCube ) {

    			renderTargetProperties.__webglFramebuffer = [];

    			for ( let i = 0; i < 6; i ++ ) {

    				renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();

    			}

    		} else {

    			renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();

    			if ( isMultipleRenderTargets ) {

    				if ( capabilities.drawBuffers ) {

    					const textures = renderTarget.texture;

    					for ( let i = 0, il = textures.length; i < il; i ++ ) {

    						const attachmentProperties = properties.get( textures[ i ] );

    						if ( attachmentProperties.__webglTexture === undefined ) {

    							attachmentProperties.__webglTexture = _gl.createTexture();

    							info.memory.textures ++;

    						}

    					}

    				} else {

    					console.warn( 'THREE.WebGLRenderer: WebGLMultipleRenderTargets can only be used with WebGL2 or WEBGL_draw_buffers extension.' );

    				}

    			}

    			if ( ( isWebGL2 && renderTarget.samples > 0 ) && useMultisampledRTT( renderTarget ) === false ) {

    				const textures = isMultipleRenderTargets ? texture : [ texture ];

    				renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer();
    				renderTargetProperties.__webglColorRenderbuffer = [];

    				state.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer );

    				for ( let i = 0; i < textures.length; i ++ ) {

    					const texture = textures[ i ];
    					renderTargetProperties.__webglColorRenderbuffer[ i ] = _gl.createRenderbuffer();

    					_gl.bindRenderbuffer( 36161, renderTargetProperties.__webglColorRenderbuffer[ i ] );

    					const glFormat = utils.convert( texture.format, texture.encoding );
    					const glType = utils.convert( texture.type );
    					const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding, renderTarget.isXRRenderTarget === true );
    					const samples = getRenderTargetSamples( renderTarget );
    					_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

    					_gl.framebufferRenderbuffer( 36160, 36064 + i, 36161, renderTargetProperties.__webglColorRenderbuffer[ i ] );

    				}

    				_gl.bindRenderbuffer( 36161, null );

    				if ( renderTarget.depthBuffer ) {

    					renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer();
    					setupRenderBufferStorage( renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true );

    				}

    				state.bindFramebuffer( 36160, null );

    			}

    		}

    		// Setup color buffer

    		if ( isCube ) {

    			state.bindTexture( 34067, textureProperties.__webglTexture );
    			setTextureParameters( 34067, texture, supportsMips );

    			for ( let i = 0; i < 6; i ++ ) {

    				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, texture, 36064, 34069 + i );

    			}

    			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

    				generateMipmap( 34067 );

    			}

    			state.unbindTexture();

    		} else if ( isMultipleRenderTargets ) {

    			const textures = renderTarget.texture;

    			for ( let i = 0, il = textures.length; i < il; i ++ ) {

    				const attachment = textures[ i ];
    				const attachmentProperties = properties.get( attachment );

    				state.bindTexture( 3553, attachmentProperties.__webglTexture );
    				setTextureParameters( 3553, attachment, supportsMips );
    				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, attachment, 36064 + i, 3553 );

    				if ( textureNeedsGenerateMipmaps( attachment, supportsMips ) ) {

    					generateMipmap( 3553 );

    				}

    			}

    			state.unbindTexture();

    		} else {

    			let glTextureType = 3553;

    			if ( renderTarget.isWebGL3DRenderTarget || renderTarget.isWebGLArrayRenderTarget ) {

    				if ( isWebGL2 ) {

    					glTextureType = renderTarget.isWebGL3DRenderTarget ? 32879 : 35866;

    				} else {

    					console.error( 'THREE.WebGLTextures: THREE.Data3DTexture and THREE.DataArrayTexture only supported with WebGL2.' );

    				}

    			}

    			state.bindTexture( glTextureType, textureProperties.__webglTexture );
    			setTextureParameters( glTextureType, texture, supportsMips );
    			setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, texture, 36064, glTextureType );

    			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

    				generateMipmap( glTextureType );

    			}

    			state.unbindTexture();

    		}

    		// Setup depth and stencil buffers

    		if ( renderTarget.depthBuffer ) {

    			setupDepthRenderbuffer( renderTarget );

    		}

    	}

    	function updateRenderTargetMipmap( renderTarget ) {

    		const supportsMips = isPowerOfTwo$1( renderTarget ) || isWebGL2;

    		const textures = renderTarget.isWebGLMultipleRenderTargets === true ? renderTarget.texture : [ renderTarget.texture ];

    		for ( let i = 0, il = textures.length; i < il; i ++ ) {

    			const texture = textures[ i ];

    			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

    				const target = renderTarget.isWebGLCubeRenderTarget ? 34067 : 3553;
    				const webglTexture = properties.get( texture ).__webglTexture;

    				state.bindTexture( target, webglTexture );
    				generateMipmap( target );
    				state.unbindTexture();

    			}

    		}

    	}

    	function updateMultisampleRenderTarget( renderTarget ) {

    		if ( ( isWebGL2 && renderTarget.samples > 0 ) && useMultisampledRTT( renderTarget ) === false ) {

    			const textures = renderTarget.isWebGLMultipleRenderTargets ? renderTarget.texture : [ renderTarget.texture ];
    			const width = renderTarget.width;
    			const height = renderTarget.height;
    			let mask = 16384;
    			const invalidationArray = [];
    			const depthStyle = renderTarget.stencilBuffer ? 33306 : 36096;
    			const renderTargetProperties = properties.get( renderTarget );
    			const isMultipleRenderTargets = ( renderTarget.isWebGLMultipleRenderTargets === true );

    			// If MRT we need to remove FBO attachments
    			if ( isMultipleRenderTargets ) {

    				for ( let i = 0; i < textures.length; i ++ ) {

    					state.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer );
    					_gl.framebufferRenderbuffer( 36160, 36064 + i, 36161, null );

    					state.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer );
    					_gl.framebufferTexture2D( 36009, 36064 + i, 3553, null, 0 );

    				}

    			}

    			state.bindFramebuffer( 36008, renderTargetProperties.__webglMultisampledFramebuffer );
    			state.bindFramebuffer( 36009, renderTargetProperties.__webglFramebuffer );

    			for ( let i = 0; i < textures.length; i ++ ) {

    				invalidationArray.push( 36064 + i );

    				if ( renderTarget.depthBuffer ) {

    					invalidationArray.push( depthStyle );

    				}

    				const ignoreDepthValues = ( renderTargetProperties.__ignoreDepthValues !== undefined ) ? renderTargetProperties.__ignoreDepthValues : false;

    				if ( ignoreDepthValues === false ) {

    					if ( renderTarget.depthBuffer ) mask |= 256;
    					if ( renderTarget.stencilBuffer ) mask |= 1024;

    				}

    				if ( isMultipleRenderTargets ) {

    					_gl.framebufferRenderbuffer( 36008, 36064, 36161, renderTargetProperties.__webglColorRenderbuffer[ i ] );

    				}

    				if ( ignoreDepthValues === true ) {

    					_gl.invalidateFramebuffer( 36008, [ depthStyle ] );
    					_gl.invalidateFramebuffer( 36009, [ depthStyle ] );

    				}

    				if ( isMultipleRenderTargets ) {

    					const webglTexture = properties.get( textures[ i ] ).__webglTexture;
    					_gl.framebufferTexture2D( 36009, 36064, 3553, webglTexture, 0 );

    				}

    				_gl.blitFramebuffer( 0, 0, width, height, 0, 0, width, height, mask, 9728 );

    				if ( supportsInvalidateFramebuffer ) {

    					_gl.invalidateFramebuffer( 36008, invalidationArray );

    				}


    			}

    			state.bindFramebuffer( 36008, null );
    			state.bindFramebuffer( 36009, null );

    			// If MRT since pre-blit we removed the FBO we need to reconstruct the attachments
    			if ( isMultipleRenderTargets ) {

    				for ( let i = 0; i < textures.length; i ++ ) {

    					state.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer );
    					_gl.framebufferRenderbuffer( 36160, 36064 + i, 36161, renderTargetProperties.__webglColorRenderbuffer[ i ] );

    					const webglTexture = properties.get( textures[ i ] ).__webglTexture;

    					state.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer );
    					_gl.framebufferTexture2D( 36009, 36064 + i, 3553, webglTexture, 0 );

    				}

    			}

    			state.bindFramebuffer( 36009, renderTargetProperties.__webglMultisampledFramebuffer );

    		}

    	}

    	function getRenderTargetSamples( renderTarget ) {

    		return Math.min( maxSamples, renderTarget.samples );

    	}

    	function useMultisampledRTT( renderTarget ) {

    		const renderTargetProperties = properties.get( renderTarget );

    		return isWebGL2 && renderTarget.samples > 0 && extensions.has( 'WEBGL_multisampled_render_to_texture' ) === true && renderTargetProperties.__useRenderToTexture !== false;

    	}

    	function updateVideoTexture( texture ) {

    		const frame = info.render.frame;

    		// Check the last frame we updated the VideoTexture

    		if ( _videoTextures.get( texture ) !== frame ) {

    			_videoTextures.set( texture, frame );
    			texture.update();

    		}

    	}

    	function verifyColorSpace( texture, image ) {

    		const encoding = texture.encoding;
    		const format = texture.format;
    		const type = texture.type;

    		if ( texture.isCompressedTexture === true || texture.isVideoTexture === true || texture.format === _SRGBAFormat ) return image;

    		if ( encoding !== LinearEncoding ) {

    			// sRGB

    			if ( encoding === sRGBEncoding ) {

    				if ( isWebGL2 === false ) {

    					// in WebGL 1, try to use EXT_sRGB extension and unsized formats

    					if ( extensions.has( 'EXT_sRGB' ) === true && format === RGBAFormat ) {

    						texture.format = _SRGBAFormat;

    						// it's not possible to generate mips in WebGL 1 with this extension

    						texture.minFilter = LinearFilter;
    						texture.generateMipmaps = false;

    					} else {

    						// slow fallback (CPU decode)

    						image = ImageUtils.sRGBToLinear( image );

    					}

    				} else {

    					// in WebGL 2 uncompressed textures can only be sRGB encoded if they have the RGBA8 format

    					if ( format !== RGBAFormat || type !== UnsignedByteType ) {

    						console.warn( 'THREE.WebGLTextures: sRGB encoded textures have to use RGBAFormat and UnsignedByteType.' );

    					}

    				}

    			} else {

    				console.error( 'THREE.WebGLTextures: Unsupported texture encoding:', encoding );

    			}

    		}

    		return image;

    	}

    	//

    	this.allocateTextureUnit = allocateTextureUnit;
    	this.resetTextureUnits = resetTextureUnits;

    	this.setTexture2D = setTexture2D;
    	this.setTexture2DArray = setTexture2DArray;
    	this.setTexture3D = setTexture3D;
    	this.setTextureCube = setTextureCube;
    	this.rebindTextures = rebindTextures;
    	this.setupRenderTarget = setupRenderTarget;
    	this.updateRenderTargetMipmap = updateRenderTargetMipmap;
    	this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
    	this.setupDepthRenderbuffer = setupDepthRenderbuffer;
    	this.setupFrameBufferTexture = setupFrameBufferTexture;
    	this.useMultisampledRTT = useMultisampledRTT;

    }

    function WebGLUtils( gl, extensions, capabilities ) {

    	const isWebGL2 = capabilities.isWebGL2;

    	function convert( p, encoding = null ) {

    		let extension;

    		if ( p === UnsignedByteType ) return 5121;
    		if ( p === UnsignedShort4444Type ) return 32819;
    		if ( p === UnsignedShort5551Type ) return 32820;

    		if ( p === ByteType ) return 5120;
    		if ( p === ShortType ) return 5122;
    		if ( p === UnsignedShortType ) return 5123;
    		if ( p === IntType ) return 5124;
    		if ( p === UnsignedIntType ) return 5125;
    		if ( p === FloatType ) return 5126;

    		if ( p === HalfFloatType ) {

    			if ( isWebGL2 ) return 5131;

    			extension = extensions.get( 'OES_texture_half_float' );

    			if ( extension !== null ) {

    				return extension.HALF_FLOAT_OES;

    			} else {

    				return null;

    			}

    		}

    		if ( p === AlphaFormat ) return 6406;
    		if ( p === RGBAFormat ) return 6408;
    		if ( p === LuminanceFormat ) return 6409;
    		if ( p === LuminanceAlphaFormat ) return 6410;
    		if ( p === DepthFormat ) return 6402;
    		if ( p === DepthStencilFormat ) return 34041;
    		if ( p === RedFormat ) return 6403;

    		// @deprecated since r137

    		if ( p === RGBFormat ) {

    			console.warn( 'THREE.WebGLRenderer: THREE.RGBFormat has been removed. Use THREE.RGBAFormat instead. https://github.com/mrdoob/three.js/pull/23228' );
    			return 6408;

    		}

    		// WebGL 1 sRGB fallback

    		if ( p === _SRGBAFormat ) {

    			extension = extensions.get( 'EXT_sRGB' );

    			if ( extension !== null ) {

    				return extension.SRGB_ALPHA_EXT;

    			} else {

    				return null;

    			}

    		}

    		// WebGL2 formats.

    		if ( p === RedIntegerFormat ) return 36244;
    		if ( p === RGFormat ) return 33319;
    		if ( p === RGIntegerFormat ) return 33320;
    		if ( p === RGBAIntegerFormat ) return 36249;

    		// S3TC

    		if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {

    			if ( encoding === sRGBEncoding ) {

    				extension = extensions.get( 'WEBGL_compressed_texture_s3tc_srgb' );

    				if ( extension !== null ) {

    					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_SRGB_S3TC_DXT1_EXT;
    					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
    					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
    					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;

    				} else {

    					return null;

    				}

    			} else {

    				extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );

    				if ( extension !== null ) {

    					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
    					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
    					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
    					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;

    				} else {

    					return null;

    				}

    			}

    		}

    		// PVRTC

    		if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {

    			extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );

    			if ( extension !== null ) {

    				if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
    				if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
    				if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
    				if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;

    			} else {

    				return null;

    			}

    		}

    		// ETC1

    		if ( p === RGB_ETC1_Format ) {

    			extension = extensions.get( 'WEBGL_compressed_texture_etc1' );

    			if ( extension !== null ) {

    				return extension.COMPRESSED_RGB_ETC1_WEBGL;

    			} else {

    				return null;

    			}

    		}

    		// ETC2

    		if ( p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format ) {

    			extension = extensions.get( 'WEBGL_compressed_texture_etc' );

    			if ( extension !== null ) {

    				if ( p === RGB_ETC2_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ETC2 : extension.COMPRESSED_RGB8_ETC2;
    				if ( p === RGBA_ETC2_EAC_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC : extension.COMPRESSED_RGBA8_ETC2_EAC;

    			} else {

    				return null;

    			}

    		}

    		// ASTC

    		if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||
    			p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||
    			p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||
    			p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||
    			p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {

    			extension = extensions.get( 'WEBGL_compressed_texture_astc' );

    			if ( extension !== null ) {

    				if ( p === RGBA_ASTC_4x4_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR : extension.COMPRESSED_RGBA_ASTC_4x4_KHR;
    				if ( p === RGBA_ASTC_5x4_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR : extension.COMPRESSED_RGBA_ASTC_5x4_KHR;
    				if ( p === RGBA_ASTC_5x5_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR : extension.COMPRESSED_RGBA_ASTC_5x5_KHR;
    				if ( p === RGBA_ASTC_6x5_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR : extension.COMPRESSED_RGBA_ASTC_6x5_KHR;
    				if ( p === RGBA_ASTC_6x6_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR : extension.COMPRESSED_RGBA_ASTC_6x6_KHR;
    				if ( p === RGBA_ASTC_8x5_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR : extension.COMPRESSED_RGBA_ASTC_8x5_KHR;
    				if ( p === RGBA_ASTC_8x6_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR : extension.COMPRESSED_RGBA_ASTC_8x6_KHR;
    				if ( p === RGBA_ASTC_8x8_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR : extension.COMPRESSED_RGBA_ASTC_8x8_KHR;
    				if ( p === RGBA_ASTC_10x5_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR : extension.COMPRESSED_RGBA_ASTC_10x5_KHR;
    				if ( p === RGBA_ASTC_10x6_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR : extension.COMPRESSED_RGBA_ASTC_10x6_KHR;
    				if ( p === RGBA_ASTC_10x8_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR : extension.COMPRESSED_RGBA_ASTC_10x8_KHR;
    				if ( p === RGBA_ASTC_10x10_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR : extension.COMPRESSED_RGBA_ASTC_10x10_KHR;
    				if ( p === RGBA_ASTC_12x10_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR : extension.COMPRESSED_RGBA_ASTC_12x10_KHR;
    				if ( p === RGBA_ASTC_12x12_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR : extension.COMPRESSED_RGBA_ASTC_12x12_KHR;

    			} else {

    				return null;

    			}

    		}

    		// BPTC

    		if ( p === RGBA_BPTC_Format ) {

    			extension = extensions.get( 'EXT_texture_compression_bptc' );

    			if ( extension !== null ) {

    				if ( p === RGBA_BPTC_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT : extension.COMPRESSED_RGBA_BPTC_UNORM_EXT;

    			} else {

    				return null;

    			}

    		}

    		//

    		if ( p === UnsignedInt248Type ) {

    			if ( isWebGL2 ) return 34042;

    			extension = extensions.get( 'WEBGL_depth_texture' );

    			if ( extension !== null ) {

    				return extension.UNSIGNED_INT_24_8_WEBGL;

    			} else {

    				return null;

    			}

    		}

    		// if "p" can't be resolved, assume the user defines a WebGL constant as a string (fallback/workaround for packed RGB formats)

    		return ( gl[ p ] !== undefined ) ? gl[ p ] : null;

    	}

    	return { convert: convert };

    }

    class ArrayCamera extends PerspectiveCamera {

    	constructor( array = [] ) {

    		super();

    		this.isArrayCamera = true;

    		this.cameras = array;

    	}

    }

    class Group extends Object3D {

    	constructor() {

    		super();

    		this.isGroup = true;

    		this.type = 'Group';

    	}

    }

    const _moveEvent = { type: 'move' };

    class WebXRController {

    	constructor() {

    		this._targetRay = null;
    		this._grip = null;
    		this._hand = null;

    	}

    	getHandSpace() {

    		if ( this._hand === null ) {

    			this._hand = new Group();
    			this._hand.matrixAutoUpdate = false;
    			this._hand.visible = false;

    			this._hand.joints = {};
    			this._hand.inputState = { pinching: false };

    		}

    		return this._hand;

    	}

    	getTargetRaySpace() {

    		if ( this._targetRay === null ) {

    			this._targetRay = new Group();
    			this._targetRay.matrixAutoUpdate = false;
    			this._targetRay.visible = false;
    			this._targetRay.hasLinearVelocity = false;
    			this._targetRay.linearVelocity = new Vector3();
    			this._targetRay.hasAngularVelocity = false;
    			this._targetRay.angularVelocity = new Vector3();

    		}

    		return this._targetRay;

    	}

    	getGripSpace() {

    		if ( this._grip === null ) {

    			this._grip = new Group();
    			this._grip.matrixAutoUpdate = false;
    			this._grip.visible = false;
    			this._grip.hasLinearVelocity = false;
    			this._grip.linearVelocity = new Vector3();
    			this._grip.hasAngularVelocity = false;
    			this._grip.angularVelocity = new Vector3();

    		}

    		return this._grip;

    	}

    	dispatchEvent( event ) {

    		if ( this._targetRay !== null ) {

    			this._targetRay.dispatchEvent( event );

    		}

    		if ( this._grip !== null ) {

    			this._grip.dispatchEvent( event );

    		}

    		if ( this._hand !== null ) {

    			this._hand.dispatchEvent( event );

    		}

    		return this;

    	}

    	disconnect( inputSource ) {

    		this.dispatchEvent( { type: 'disconnected', data: inputSource } );

    		if ( this._targetRay !== null ) {

    			this._targetRay.visible = false;

    		}

    		if ( this._grip !== null ) {

    			this._grip.visible = false;

    		}

    		if ( this._hand !== null ) {

    			this._hand.visible = false;

    		}

    		return this;

    	}

    	update( inputSource, frame, referenceSpace ) {

    		let inputPose = null;
    		let gripPose = null;
    		let handPose = null;

    		const targetRay = this._targetRay;
    		const grip = this._grip;
    		const hand = this._hand;

    		if ( inputSource && frame.session.visibilityState !== 'visible-blurred' ) {

    			if ( hand && inputSource.hand ) {

    				handPose = true;

    				for ( const inputjoint of inputSource.hand.values() ) {

    					// Update the joints groups with the XRJoint poses
    					const jointPose = frame.getJointPose( inputjoint, referenceSpace );

    					if ( hand.joints[ inputjoint.jointName ] === undefined ) {

    						// The transform of this joint will be updated with the joint pose on each frame
    						const joint = new Group();
    						joint.matrixAutoUpdate = false;
    						joint.visible = false;
    						hand.joints[ inputjoint.jointName ] = joint;
    						// ??
    						hand.add( joint );

    					}

    					const joint = hand.joints[ inputjoint.jointName ];

    					if ( jointPose !== null ) {

    						joint.matrix.fromArray( jointPose.transform.matrix );
    						joint.matrix.decompose( joint.position, joint.rotation, joint.scale );
    						joint.jointRadius = jointPose.radius;

    					}

    					joint.visible = jointPose !== null;

    				}

    				// Custom events

    				// Check pinchz
    				const indexTip = hand.joints[ 'index-finger-tip' ];
    				const thumbTip = hand.joints[ 'thumb-tip' ];
    				const distance = indexTip.position.distanceTo( thumbTip.position );

    				const distanceToPinch = 0.02;
    				const threshold = 0.005;

    				if ( hand.inputState.pinching && distance > distanceToPinch + threshold ) {

    					hand.inputState.pinching = false;
    					this.dispatchEvent( {
    						type: 'pinchend',
    						handedness: inputSource.handedness,
    						target: this
    					} );

    				} else if ( ! hand.inputState.pinching && distance <= distanceToPinch - threshold ) {

    					hand.inputState.pinching = true;
    					this.dispatchEvent( {
    						type: 'pinchstart',
    						handedness: inputSource.handedness,
    						target: this
    					} );

    				}

    			} else {

    				if ( grip !== null && inputSource.gripSpace ) {

    					gripPose = frame.getPose( inputSource.gripSpace, referenceSpace );

    					if ( gripPose !== null ) {

    						grip.matrix.fromArray( gripPose.transform.matrix );
    						grip.matrix.decompose( grip.position, grip.rotation, grip.scale );

    						if ( gripPose.linearVelocity ) {

    							grip.hasLinearVelocity = true;
    							grip.linearVelocity.copy( gripPose.linearVelocity );

    						} else {

    							grip.hasLinearVelocity = false;

    						}

    						if ( gripPose.angularVelocity ) {

    							grip.hasAngularVelocity = true;
    							grip.angularVelocity.copy( gripPose.angularVelocity );

    						} else {

    							grip.hasAngularVelocity = false;

    						}

    					}

    				}

    			}

    			if ( targetRay !== null ) {

    				inputPose = frame.getPose( inputSource.targetRaySpace, referenceSpace );

    				// Some runtimes (namely Vive Cosmos with Vive OpenXR Runtime) have only grip space and ray space is equal to it
    				if ( inputPose === null && gripPose !== null ) {

    					inputPose = gripPose;

    				}

    				if ( inputPose !== null ) {

    					targetRay.matrix.fromArray( inputPose.transform.matrix );
    					targetRay.matrix.decompose( targetRay.position, targetRay.rotation, targetRay.scale );

    					if ( inputPose.linearVelocity ) {

    						targetRay.hasLinearVelocity = true;
    						targetRay.linearVelocity.copy( inputPose.linearVelocity );

    					} else {

    						targetRay.hasLinearVelocity = false;

    					}

    					if ( inputPose.angularVelocity ) {

    						targetRay.hasAngularVelocity = true;
    						targetRay.angularVelocity.copy( inputPose.angularVelocity );

    					} else {

    						targetRay.hasAngularVelocity = false;

    					}

    					this.dispatchEvent( _moveEvent );

    				}

    			}


    		}

    		if ( targetRay !== null ) {

    			targetRay.visible = ( inputPose !== null );

    		}

    		if ( grip !== null ) {

    			grip.visible = ( gripPose !== null );

    		}

    		if ( hand !== null ) {

    			hand.visible = ( handPose !== null );

    		}

    		return this;

    	}

    }

    class DepthTexture extends Texture {

    	constructor( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {

    		format = format !== undefined ? format : DepthFormat;

    		if ( format !== DepthFormat && format !== DepthStencilFormat ) {

    			throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );

    		}

    		if ( type === undefined && format === DepthFormat ) type = UnsignedIntType;
    		if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;

    		super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

    		this.isDepthTexture = true;

    		this.image = { width: width, height: height };

    		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
    		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;

    		this.flipY = false;
    		this.generateMipmaps = false;

    	}


    }

    class WebXRManager extends EventDispatcher {

    	constructor( renderer, gl ) {

    		super();

    		const scope = this;

    		let session = null;
    		let framebufferScaleFactor = 1.0;

    		let referenceSpace = null;
    		let referenceSpaceType = 'local-floor';
    		let customReferenceSpace = null;

    		let pose = null;
    		let glBinding = null;
    		let glProjLayer = null;
    		let glBaseLayer = null;
    		let xrFrame = null;
    		const attributes = gl.getContextAttributes();
    		let initialRenderTarget = null;
    		let newRenderTarget = null;

    		const controllers = [];
    		const controllerInputSources = [];

    		//

    		const cameraL = new PerspectiveCamera();
    		cameraL.layers.enable( 1 );
    		cameraL.viewport = new Vector4();

    		const cameraR = new PerspectiveCamera();
    		cameraR.layers.enable( 2 );
    		cameraR.viewport = new Vector4();

    		const cameras = [ cameraL, cameraR ];

    		const cameraVR = new ArrayCamera();
    		cameraVR.layers.enable( 1 );
    		cameraVR.layers.enable( 2 );

    		let _currentDepthNear = null;
    		let _currentDepthFar = null;

    		//

    		this.cameraAutoUpdate = true;
    		this.enabled = false;

    		this.isPresenting = false;

    		this.getController = function ( index ) {

    			let controller = controllers[ index ];

    			if ( controller === undefined ) {

    				controller = new WebXRController();
    				controllers[ index ] = controller;

    			}

    			return controller.getTargetRaySpace();

    		};

    		this.getControllerGrip = function ( index ) {

    			let controller = controllers[ index ];

    			if ( controller === undefined ) {

    				controller = new WebXRController();
    				controllers[ index ] = controller;

    			}

    			return controller.getGripSpace();

    		};

    		this.getHand = function ( index ) {

    			let controller = controllers[ index ];

    			if ( controller === undefined ) {

    				controller = new WebXRController();
    				controllers[ index ] = controller;

    			}

    			return controller.getHandSpace();

    		};

    		//

    		function onSessionEvent( event ) {

    			const controllerIndex = controllerInputSources.indexOf( event.inputSource );

    			if ( controllerIndex === - 1 ) {

    				return;

    			}

    			const controller = controllers[ controllerIndex ];

    			if ( controller !== undefined ) {

    				controller.dispatchEvent( { type: event.type, data: event.inputSource } );

    			}

    		}

    		function onSessionEnd() {

    			session.removeEventListener( 'select', onSessionEvent );
    			session.removeEventListener( 'selectstart', onSessionEvent );
    			session.removeEventListener( 'selectend', onSessionEvent );
    			session.removeEventListener( 'squeeze', onSessionEvent );
    			session.removeEventListener( 'squeezestart', onSessionEvent );
    			session.removeEventListener( 'squeezeend', onSessionEvent );
    			session.removeEventListener( 'end', onSessionEnd );
    			session.removeEventListener( 'inputsourceschange', onInputSourcesChange );

    			for ( let i = 0; i < controllers.length; i ++ ) {

    				const inputSource = controllerInputSources[ i ];

    				if ( inputSource === null ) continue;

    				controllerInputSources[ i ] = null;

    				controllers[ i ].disconnect( inputSource );

    			}

    			_currentDepthNear = null;
    			_currentDepthFar = null;

    			// restore framebuffer/rendering state

    			renderer.setRenderTarget( initialRenderTarget );

    			glBaseLayer = null;
    			glProjLayer = null;
    			glBinding = null;
    			session = null;
    			newRenderTarget = null;

    			//

    			animation.stop();

    			scope.isPresenting = false;

    			scope.dispatchEvent( { type: 'sessionend' } );

    		}

    		this.setFramebufferScaleFactor = function ( value ) {

    			framebufferScaleFactor = value;

    			if ( scope.isPresenting === true ) {

    				console.warn( 'THREE.WebXRManager: Cannot change framebuffer scale while presenting.' );

    			}

    		};

    		this.setReferenceSpaceType = function ( value ) {

    			referenceSpaceType = value;

    			if ( scope.isPresenting === true ) {

    				console.warn( 'THREE.WebXRManager: Cannot change reference space type while presenting.' );

    			}

    		};

    		this.getReferenceSpace = function () {

    			return customReferenceSpace || referenceSpace;

    		};

    		this.setReferenceSpace = function ( space ) {

    			customReferenceSpace = space;

    		};

    		this.getBaseLayer = function () {

    			return glProjLayer !== null ? glProjLayer : glBaseLayer;

    		};

    		this.getBinding = function () {

    			return glBinding;

    		};

    		this.getFrame = function () {

    			return xrFrame;

    		};

    		this.getSession = function () {

    			return session;

    		};

    		this.setSession = async function ( value ) {

    			session = value;

    			if ( session !== null ) {

    				initialRenderTarget = renderer.getRenderTarget();

    				session.addEventListener( 'select', onSessionEvent );
    				session.addEventListener( 'selectstart', onSessionEvent );
    				session.addEventListener( 'selectend', onSessionEvent );
    				session.addEventListener( 'squeeze', onSessionEvent );
    				session.addEventListener( 'squeezestart', onSessionEvent );
    				session.addEventListener( 'squeezeend', onSessionEvent );
    				session.addEventListener( 'end', onSessionEnd );
    				session.addEventListener( 'inputsourceschange', onInputSourcesChange );

    				if ( attributes.xrCompatible !== true ) {

    					await gl.makeXRCompatible();

    				}

    				if ( ( session.renderState.layers === undefined ) || ( renderer.capabilities.isWebGL2 === false ) ) {

    					const layerInit = {
    						antialias: ( session.renderState.layers === undefined ) ? attributes.antialias : true,
    						alpha: attributes.alpha,
    						depth: attributes.depth,
    						stencil: attributes.stencil,
    						framebufferScaleFactor: framebufferScaleFactor
    					};

    					glBaseLayer = new XRWebGLLayer( session, gl, layerInit );

    					session.updateRenderState( { baseLayer: glBaseLayer } );

    					newRenderTarget = new WebGLRenderTarget(
    						glBaseLayer.framebufferWidth,
    						glBaseLayer.framebufferHeight,
    						{
    							format: RGBAFormat,
    							type: UnsignedByteType,
    							encoding: renderer.outputEncoding,
    							stencilBuffer: attributes.stencil
    						}
    					);

    				} else {

    					let depthFormat = null;
    					let depthType = null;
    					let glDepthFormat = null;

    					if ( attributes.depth ) {

    						glDepthFormat = attributes.stencil ? 35056 : 33190;
    						depthFormat = attributes.stencil ? DepthStencilFormat : DepthFormat;
    						depthType = attributes.stencil ? UnsignedInt248Type : UnsignedIntType;

    					}

    					const projectionlayerInit = {
    						colorFormat: 32856,
    						depthFormat: glDepthFormat,
    						scaleFactor: framebufferScaleFactor
    					};

    					glBinding = new XRWebGLBinding( session, gl );

    					glProjLayer = glBinding.createProjectionLayer( projectionlayerInit );

    					session.updateRenderState( { layers: [ glProjLayer ] } );

    					newRenderTarget = new WebGLRenderTarget(
    						glProjLayer.textureWidth,
    						glProjLayer.textureHeight,
    						{
    							format: RGBAFormat,
    							type: UnsignedByteType,
    							depthTexture: new DepthTexture( glProjLayer.textureWidth, glProjLayer.textureHeight, depthType, undefined, undefined, undefined, undefined, undefined, undefined, depthFormat ),
    							stencilBuffer: attributes.stencil,
    							encoding: renderer.outputEncoding,
    							samples: attributes.antialias ? 4 : 0
    						} );

    					const renderTargetProperties = renderer.properties.get( newRenderTarget );
    					renderTargetProperties.__ignoreDepthValues = glProjLayer.ignoreDepthValues;

    				}

    				newRenderTarget.isXRRenderTarget = true; // TODO Remove this when possible, see #23278

    				// Set foveation to maximum.
    				this.setFoveation( 1.0 );

    				customReferenceSpace = null;
    				referenceSpace = await session.requestReferenceSpace( referenceSpaceType );

    				animation.setContext( session );
    				animation.start();

    				scope.isPresenting = true;

    				scope.dispatchEvent( { type: 'sessionstart' } );

    			}

    		};

    		function onInputSourcesChange( event ) {

    			// Notify disconnected

    			for ( let i = 0; i < event.removed.length; i ++ ) {

    				const inputSource = event.removed[ i ];
    				const index = controllerInputSources.indexOf( inputSource );

    				if ( index >= 0 ) {

    					controllerInputSources[ index ] = null;
    					controllers[ index ].dispatchEvent( { type: 'disconnected', data: inputSource } );

    				}

    			}

    			// Notify connected

    			for ( let i = 0; i < event.added.length; i ++ ) {

    				const inputSource = event.added[ i ];

    				let controllerIndex = controllerInputSources.indexOf( inputSource );

    				if ( controllerIndex === - 1 ) {

    					// Assign input source a controller that currently has no input source

    					for ( let i = 0; i < controllers.length; i ++ ) {

    						if ( i >= controllerInputSources.length ) {

    							controllerInputSources.push( inputSource );
    							controllerIndex = i;
    							break;

    						} else if ( controllerInputSources[ i ] === null ) {

    							controllerInputSources[ i ] = inputSource;
    							controllerIndex = i;
    							break;

    						}

    					}

    					// If all controllers do currently receive input we ignore new ones

    					if ( controllerIndex === - 1 ) break;

    				}

    				const controller = controllers[ controllerIndex ];

    				if ( controller ) {

    					controller.dispatchEvent( { type: 'connected', data: inputSource } );

    				}

    			}

    		}

    		//

    		const cameraLPos = new Vector3();
    		const cameraRPos = new Vector3();

    		/**
    		 * Assumes 2 cameras that are parallel and share an X-axis, and that
    		 * the cameras' projection and world matrices have already been set.
    		 * And that near and far planes are identical for both cameras.
    		 * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765
    		 */
    		function setProjectionFromUnion( camera, cameraL, cameraR ) {

    			cameraLPos.setFromMatrixPosition( cameraL.matrixWorld );
    			cameraRPos.setFromMatrixPosition( cameraR.matrixWorld );

    			const ipd = cameraLPos.distanceTo( cameraRPos );

    			const projL = cameraL.projectionMatrix.elements;
    			const projR = cameraR.projectionMatrix.elements;

    			// VR systems will have identical far and near planes, and
    			// most likely identical top and bottom frustum extents.
    			// Use the left camera for these values.
    			const near = projL[ 14 ] / ( projL[ 10 ] - 1 );
    			const far = projL[ 14 ] / ( projL[ 10 ] + 1 );
    			const topFov = ( projL[ 9 ] + 1 ) / projL[ 5 ];
    			const bottomFov = ( projL[ 9 ] - 1 ) / projL[ 5 ];

    			const leftFov = ( projL[ 8 ] - 1 ) / projL[ 0 ];
    			const rightFov = ( projR[ 8 ] + 1 ) / projR[ 0 ];
    			const left = near * leftFov;
    			const right = near * rightFov;

    			// Calculate the new camera's position offset from the
    			// left camera. xOffset should be roughly half `ipd`.
    			const zOffset = ipd / ( - leftFov + rightFov );
    			const xOffset = zOffset * - leftFov;

    			// TODO: Better way to apply this offset?
    			cameraL.matrixWorld.decompose( camera.position, camera.quaternion, camera.scale );
    			camera.translateX( xOffset );
    			camera.translateZ( zOffset );
    			camera.matrixWorld.compose( camera.position, camera.quaternion, camera.scale );
    			camera.matrixWorldInverse.copy( camera.matrixWorld ).invert();

    			// Find the union of the frustum values of the cameras and scale
    			// the values so that the near plane's position does not change in world space,
    			// although must now be relative to the new union camera.
    			const near2 = near + zOffset;
    			const far2 = far + zOffset;
    			const left2 = left - xOffset;
    			const right2 = right + ( ipd - xOffset );
    			const top2 = topFov * far / far2 * near2;
    			const bottom2 = bottomFov * far / far2 * near2;

    			camera.projectionMatrix.makePerspective( left2, right2, top2, bottom2, near2, far2 );

    		}

    		function updateCamera( camera, parent ) {

    			if ( parent === null ) {

    				camera.matrixWorld.copy( camera.matrix );

    			} else {

    				camera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix );

    			}

    			camera.matrixWorldInverse.copy( camera.matrixWorld ).invert();

    		}

    		this.updateCamera = function ( camera ) {

    			if ( session === null ) return;

    			cameraVR.near = cameraR.near = cameraL.near = camera.near;
    			cameraVR.far = cameraR.far = cameraL.far = camera.far;

    			if ( _currentDepthNear !== cameraVR.near || _currentDepthFar !== cameraVR.far ) {

    				// Note that the new renderState won't apply until the next frame. See #18320

    				session.updateRenderState( {
    					depthNear: cameraVR.near,
    					depthFar: cameraVR.far
    				} );

    				_currentDepthNear = cameraVR.near;
    				_currentDepthFar = cameraVR.far;

    			}

    			const parent = camera.parent;
    			const cameras = cameraVR.cameras;

    			updateCamera( cameraVR, parent );

    			for ( let i = 0; i < cameras.length; i ++ ) {

    				updateCamera( cameras[ i ], parent );

    			}

    			cameraVR.matrixWorld.decompose( cameraVR.position, cameraVR.quaternion, cameraVR.scale );

    			// update user camera and its children

    			camera.matrix.copy( cameraVR.matrix );
    			camera.matrix.decompose( camera.position, camera.quaternion, camera.scale );

    			const children = camera.children;

    			for ( let i = 0, l = children.length; i < l; i ++ ) {

    				children[ i ].updateMatrixWorld( true );

    			}

    			// update projection matrix for proper view frustum culling

    			if ( cameras.length === 2 ) {

    				setProjectionFromUnion( cameraVR, cameraL, cameraR );

    			} else {

    				// assume single camera setup (AR)

    				cameraVR.projectionMatrix.copy( cameraL.projectionMatrix );

    			}

    		};

    		this.getCamera = function () {

    			return cameraVR;

    		};

    		this.getFoveation = function () {

    			if ( glProjLayer !== null ) {

    				return glProjLayer.fixedFoveation;

    			}

    			if ( glBaseLayer !== null ) {

    				return glBaseLayer.fixedFoveation;

    			}

    			return undefined;

    		};

    		this.setFoveation = function ( foveation ) {

    			// 0 = no foveation = full resolution
    			// 1 = maximum foveation = the edges render at lower resolution

    			if ( glProjLayer !== null ) {

    				glProjLayer.fixedFoveation = foveation;

    			}

    			if ( glBaseLayer !== null && glBaseLayer.fixedFoveation !== undefined ) {

    				glBaseLayer.fixedFoveation = foveation;

    			}

    		};

    		// Animation Loop

    		let onAnimationFrameCallback = null;

    		function onAnimationFrame( time, frame ) {

    			pose = frame.getViewerPose( customReferenceSpace || referenceSpace );
    			xrFrame = frame;

    			if ( pose !== null ) {

    				const views = pose.views;

    				if ( glBaseLayer !== null ) {

    					renderer.setRenderTargetFramebuffer( newRenderTarget, glBaseLayer.framebuffer );
    					renderer.setRenderTarget( newRenderTarget );

    				}

    				let cameraVRNeedsUpdate = false;

    				// check if it's necessary to rebuild cameraVR's camera list

    				if ( views.length !== cameraVR.cameras.length ) {

    					cameraVR.cameras.length = 0;
    					cameraVRNeedsUpdate = true;

    				}

    				for ( let i = 0; i < views.length; i ++ ) {

    					const view = views[ i ];

    					let viewport = null;

    					if ( glBaseLayer !== null ) {

    						viewport = glBaseLayer.getViewport( view );

    					} else {

    						const glSubImage = glBinding.getViewSubImage( glProjLayer, view );
    						viewport = glSubImage.viewport;

    						// For side-by-side projection, we only produce a single texture for both eyes.
    						if ( i === 0 ) {

    							renderer.setRenderTargetTextures(
    								newRenderTarget,
    								glSubImage.colorTexture,
    								glProjLayer.ignoreDepthValues ? undefined : glSubImage.depthStencilTexture );

    							renderer.setRenderTarget( newRenderTarget );

    						}

    					}

    					let camera = cameras[ i ];

    					if ( camera === undefined ) {

    						camera = new PerspectiveCamera();
    						camera.layers.enable( i );
    						camera.viewport = new Vector4();
    						cameras[ i ] = camera;

    					}

    					camera.matrix.fromArray( view.transform.matrix );
    					camera.projectionMatrix.fromArray( view.projectionMatrix );
    					camera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height );

    					if ( i === 0 ) {

    						cameraVR.matrix.copy( camera.matrix );

    					}

    					if ( cameraVRNeedsUpdate === true ) {

    						cameraVR.cameras.push( camera );

    					}

    				}

    			}

    			//

    			for ( let i = 0; i < controllers.length; i ++ ) {

    				const inputSource = controllerInputSources[ i ];
    				const controller = controllers[ i ];

    				if ( inputSource !== null && controller !== undefined ) {

    					controller.update( inputSource, frame, customReferenceSpace || referenceSpace );

    				}

    			}

    			if ( onAnimationFrameCallback ) onAnimationFrameCallback( time, frame );

    			xrFrame = null;

    		}

    		const animation = new WebGLAnimation();

    		animation.setAnimationLoop( onAnimationFrame );

    		this.setAnimationLoop = function ( callback ) {

    			onAnimationFrameCallback = callback;

    		};

    		this.dispose = function () {};

    	}

    }

    function WebGLMaterials( renderer, properties ) {

    	function refreshFogUniforms( uniforms, fog ) {

    		uniforms.fogColor.value.copy( fog.color );

    		if ( fog.isFog ) {

    			uniforms.fogNear.value = fog.near;
    			uniforms.fogFar.value = fog.far;

    		} else if ( fog.isFogExp2 ) {

    			uniforms.fogDensity.value = fog.density;

    		}

    	}

    	function refreshMaterialUniforms( uniforms, material, pixelRatio, height, transmissionRenderTarget ) {

    		if ( material.isMeshBasicMaterial ) {

    			refreshUniformsCommon( uniforms, material );

    		} else if ( material.isMeshLambertMaterial ) {

    			refreshUniformsCommon( uniforms, material );

    		} else if ( material.isMeshToonMaterial ) {

    			refreshUniformsCommon( uniforms, material );
    			refreshUniformsToon( uniforms, material );

    		} else if ( material.isMeshPhongMaterial ) {

    			refreshUniformsCommon( uniforms, material );
    			refreshUniformsPhong( uniforms, material );

    		} else if ( material.isMeshStandardMaterial ) {

    			refreshUniformsCommon( uniforms, material );
    			refreshUniformsStandard( uniforms, material );

    			if ( material.isMeshPhysicalMaterial ) {

    				refreshUniformsPhysical( uniforms, material, transmissionRenderTarget );

    			}

    		} else if ( material.isMeshMatcapMaterial ) {

    			refreshUniformsCommon( uniforms, material );
    			refreshUniformsMatcap( uniforms, material );

    		} else if ( material.isMeshDepthMaterial ) {

    			refreshUniformsCommon( uniforms, material );

    		} else if ( material.isMeshDistanceMaterial ) {

    			refreshUniformsCommon( uniforms, material );
    			refreshUniformsDistance( uniforms, material );

    		} else if ( material.isMeshNormalMaterial ) {

    			refreshUniformsCommon( uniforms, material );

    		} else if ( material.isLineBasicMaterial ) {

    			refreshUniformsLine( uniforms, material );

    			if ( material.isLineDashedMaterial ) {

    				refreshUniformsDash( uniforms, material );

    			}

    		} else if ( material.isPointsMaterial ) {

    			refreshUniformsPoints( uniforms, material, pixelRatio, height );

    		} else if ( material.isSpriteMaterial ) {

    			refreshUniformsSprites( uniforms, material );

    		} else if ( material.isShadowMaterial ) {

    			uniforms.color.value.copy( material.color );
    			uniforms.opacity.value = material.opacity;

    		} else if ( material.isShaderMaterial ) {

    			material.uniformsNeedUpdate = false; // #15581

    		}

    	}

    	function refreshUniformsCommon( uniforms, material ) {

    		uniforms.opacity.value = material.opacity;

    		if ( material.color ) {

    			uniforms.diffuse.value.copy( material.color );

    		}

    		if ( material.emissive ) {

    			uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );

    		}

    		if ( material.map ) {

    			uniforms.map.value = material.map;

    		}

    		if ( material.alphaMap ) {

    			uniforms.alphaMap.value = material.alphaMap;

    		}

    		if ( material.bumpMap ) {

    			uniforms.bumpMap.value = material.bumpMap;
    			uniforms.bumpScale.value = material.bumpScale;
    			if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

    		}

    		if ( material.displacementMap ) {

    			uniforms.displacementMap.value = material.displacementMap;
    			uniforms.displacementScale.value = material.displacementScale;
    			uniforms.displacementBias.value = material.displacementBias;

    		}

    		if ( material.emissiveMap ) {

    			uniforms.emissiveMap.value = material.emissiveMap;

    		}

    		if ( material.normalMap ) {

    			uniforms.normalMap.value = material.normalMap;
    			uniforms.normalScale.value.copy( material.normalScale );
    			if ( material.side === BackSide ) uniforms.normalScale.value.negate();

    		}

    		if ( material.specularMap ) {

    			uniforms.specularMap.value = material.specularMap;

    		}

    		if ( material.alphaTest > 0 ) {

    			uniforms.alphaTest.value = material.alphaTest;

    		}

    		const envMap = properties.get( material ).envMap;

    		if ( envMap ) {

    			uniforms.envMap.value = envMap;

    			uniforms.flipEnvMap.value = ( envMap.isCubeTexture && envMap.isRenderTargetTexture === false ) ? - 1 : 1;

    			uniforms.reflectivity.value = material.reflectivity;
    			uniforms.ior.value = material.ior;
    			uniforms.refractionRatio.value = material.refractionRatio;

    		}

    		if ( material.lightMap ) {

    			uniforms.lightMap.value = material.lightMap;

    			// artist-friendly light intensity scaling factor
    			const scaleFactor = ( renderer.physicallyCorrectLights !== true ) ? Math.PI : 1;

    			uniforms.lightMapIntensity.value = material.lightMapIntensity * scaleFactor;

    		}

    		if ( material.aoMap ) {

    			uniforms.aoMap.value = material.aoMap;
    			uniforms.aoMapIntensity.value = material.aoMapIntensity;

    		}

    		// uv repeat and offset setting priorities
    		// 1. color map
    		// 2. specular map
    		// 3. displacementMap map
    		// 4. normal map
    		// 5. bump map
    		// 6. roughnessMap map
    		// 7. metalnessMap map
    		// 8. alphaMap map
    		// 9. emissiveMap map
    		// 10. clearcoat map
    		// 11. clearcoat normal map
    		// 12. clearcoat roughnessMap map
    		// 13. iridescence map
    		// 14. iridescence thickness map
    		// 15. specular intensity map
    		// 16. specular tint map
    		// 17. transmission map
    		// 18. thickness map

    		let uvScaleMap;

    		if ( material.map ) {

    			uvScaleMap = material.map;

    		} else if ( material.specularMap ) {

    			uvScaleMap = material.specularMap;

    		} else if ( material.displacementMap ) {

    			uvScaleMap = material.displacementMap;

    		} else if ( material.normalMap ) {

    			uvScaleMap = material.normalMap;

    		} else if ( material.bumpMap ) {

    			uvScaleMap = material.bumpMap;

    		} else if ( material.roughnessMap ) {

    			uvScaleMap = material.roughnessMap;

    		} else if ( material.metalnessMap ) {

    			uvScaleMap = material.metalnessMap;

    		} else if ( material.alphaMap ) {

    			uvScaleMap = material.alphaMap;

    		} else if ( material.emissiveMap ) {

    			uvScaleMap = material.emissiveMap;

    		} else if ( material.clearcoatMap ) {

    			uvScaleMap = material.clearcoatMap;

    		} else if ( material.clearcoatNormalMap ) {

    			uvScaleMap = material.clearcoatNormalMap;

    		} else if ( material.clearcoatRoughnessMap ) {

    			uvScaleMap = material.clearcoatRoughnessMap;

    		} else if ( material.iridescenceMap ) {

    			uvScaleMap = material.iridescenceMap;

    		} else if ( material.iridescenceThicknessMap ) {

    			uvScaleMap = material.iridescenceThicknessMap;

    		} else if ( material.specularIntensityMap ) {

    			uvScaleMap = material.specularIntensityMap;

    		} else if ( material.specularColorMap ) {

    			uvScaleMap = material.specularColorMap;

    		} else if ( material.transmissionMap ) {

    			uvScaleMap = material.transmissionMap;

    		} else if ( material.thicknessMap ) {

    			uvScaleMap = material.thicknessMap;

    		} else if ( material.sheenColorMap ) {

    			uvScaleMap = material.sheenColorMap;

    		} else if ( material.sheenRoughnessMap ) {

    			uvScaleMap = material.sheenRoughnessMap;

    		}

    		if ( uvScaleMap !== undefined ) {

    			// backwards compatibility
    			if ( uvScaleMap.isWebGLRenderTarget ) {

    				uvScaleMap = uvScaleMap.texture;

    			}

    			if ( uvScaleMap.matrixAutoUpdate === true ) {

    				uvScaleMap.updateMatrix();

    			}

    			uniforms.uvTransform.value.copy( uvScaleMap.matrix );

    		}

    		// uv repeat and offset setting priorities for uv2
    		// 1. ao map
    		// 2. light map

    		let uv2ScaleMap;

    		if ( material.aoMap ) {

    			uv2ScaleMap = material.aoMap;

    		} else if ( material.lightMap ) {

    			uv2ScaleMap = material.lightMap;

    		}

    		if ( uv2ScaleMap !== undefined ) {

    			// backwards compatibility
    			if ( uv2ScaleMap.isWebGLRenderTarget ) {

    				uv2ScaleMap = uv2ScaleMap.texture;

    			}

    			if ( uv2ScaleMap.matrixAutoUpdate === true ) {

    				uv2ScaleMap.updateMatrix();

    			}

    			uniforms.uv2Transform.value.copy( uv2ScaleMap.matrix );

    		}

    	}

    	function refreshUniformsLine( uniforms, material ) {

    		uniforms.diffuse.value.copy( material.color );
    		uniforms.opacity.value = material.opacity;

    	}

    	function refreshUniformsDash( uniforms, material ) {

    		uniforms.dashSize.value = material.dashSize;
    		uniforms.totalSize.value = material.dashSize + material.gapSize;
    		uniforms.scale.value = material.scale;

    	}

    	function refreshUniformsPoints( uniforms, material, pixelRatio, height ) {

    		uniforms.diffuse.value.copy( material.color );
    		uniforms.opacity.value = material.opacity;
    		uniforms.size.value = material.size * pixelRatio;
    		uniforms.scale.value = height * 0.5;

    		if ( material.map ) {

    			uniforms.map.value = material.map;

    		}

    		if ( material.alphaMap ) {

    			uniforms.alphaMap.value = material.alphaMap;

    		}

    		if ( material.alphaTest > 0 ) {

    			uniforms.alphaTest.value = material.alphaTest;

    		}

    		// uv repeat and offset setting priorities
    		// 1. color map
    		// 2. alpha map

    		let uvScaleMap;

    		if ( material.map ) {

    			uvScaleMap = material.map;

    		} else if ( material.alphaMap ) {

    			uvScaleMap = material.alphaMap;

    		}

    		if ( uvScaleMap !== undefined ) {

    			if ( uvScaleMap.matrixAutoUpdate === true ) {

    				uvScaleMap.updateMatrix();

    			}

    			uniforms.uvTransform.value.copy( uvScaleMap.matrix );

    		}

    	}

    	function refreshUniformsSprites( uniforms, material ) {

    		uniforms.diffuse.value.copy( material.color );
    		uniforms.opacity.value = material.opacity;
    		uniforms.rotation.value = material.rotation;

    		if ( material.map ) {

    			uniforms.map.value = material.map;

    		}

    		if ( material.alphaMap ) {

    			uniforms.alphaMap.value = material.alphaMap;

    		}

    		if ( material.alphaTest > 0 ) {

    			uniforms.alphaTest.value = material.alphaTest;

    		}

    		// uv repeat and offset setting priorities
    		// 1. color map
    		// 2. alpha map

    		let uvScaleMap;

    		if ( material.map ) {

    			uvScaleMap = material.map;

    		} else if ( material.alphaMap ) {

    			uvScaleMap = material.alphaMap;

    		}

    		if ( uvScaleMap !== undefined ) {

    			if ( uvScaleMap.matrixAutoUpdate === true ) {

    				uvScaleMap.updateMatrix();

    			}

    			uniforms.uvTransform.value.copy( uvScaleMap.matrix );

    		}

    	}

    	function refreshUniformsPhong( uniforms, material ) {

    		uniforms.specular.value.copy( material.specular );
    		uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )

    	}

    	function refreshUniformsToon( uniforms, material ) {

    		if ( material.gradientMap ) {

    			uniforms.gradientMap.value = material.gradientMap;

    		}

    	}

    	function refreshUniformsStandard( uniforms, material ) {

    		uniforms.roughness.value = material.roughness;
    		uniforms.metalness.value = material.metalness;

    		if ( material.roughnessMap ) {

    			uniforms.roughnessMap.value = material.roughnessMap;

    		}

    		if ( material.metalnessMap ) {

    			uniforms.metalnessMap.value = material.metalnessMap;

    		}

    		const envMap = properties.get( material ).envMap;

    		if ( envMap ) {

    			//uniforms.envMap.value = material.envMap; // part of uniforms common
    			uniforms.envMapIntensity.value = material.envMapIntensity;

    		}

    	}

    	function refreshUniformsPhysical( uniforms, material, transmissionRenderTarget ) {

    		uniforms.ior.value = material.ior; // also part of uniforms common

    		if ( material.sheen > 0 ) {

    			uniforms.sheenColor.value.copy( material.sheenColor ).multiplyScalar( material.sheen );

    			uniforms.sheenRoughness.value = material.sheenRoughness;

    			if ( material.sheenColorMap ) {

    				uniforms.sheenColorMap.value = material.sheenColorMap;

    			}

    			if ( material.sheenRoughnessMap ) {

    				uniforms.sheenRoughnessMap.value = material.sheenRoughnessMap;

    			}

    		}

    		if ( material.clearcoat > 0 ) {

    			uniforms.clearcoat.value = material.clearcoat;
    			uniforms.clearcoatRoughness.value = material.clearcoatRoughness;

    			if ( material.clearcoatMap ) {

    				uniforms.clearcoatMap.value = material.clearcoatMap;

    			}

    			if ( material.clearcoatRoughnessMap ) {

    				uniforms.clearcoatRoughnessMap.value = material.clearcoatRoughnessMap;

    			}

    			if ( material.clearcoatNormalMap ) {

    				uniforms.clearcoatNormalScale.value.copy( material.clearcoatNormalScale );
    				uniforms.clearcoatNormalMap.value = material.clearcoatNormalMap;

    				if ( material.side === BackSide ) {

    					uniforms.clearcoatNormalScale.value.negate();

    				}

    			}

    		}

    		if ( material.iridescence > 0 ) {

    			uniforms.iridescence.value = material.iridescence;
    			uniforms.iridescenceIOR.value = material.iridescenceIOR;
    			uniforms.iridescenceThicknessMinimum.value = material.iridescenceThicknessRange[ 0 ];
    			uniforms.iridescenceThicknessMaximum.value = material.iridescenceThicknessRange[ 1 ];

    			if ( material.iridescenceMap ) {

    				uniforms.iridescenceMap.value = material.iridescenceMap;

    			}

    			if ( material.iridescenceThicknessMap ) {

    				uniforms.iridescenceThicknessMap.value = material.iridescenceThicknessMap;

    			}

    		}

    		if ( material.transmission > 0 ) {

    			uniforms.transmission.value = material.transmission;
    			uniforms.transmissionSamplerMap.value = transmissionRenderTarget.texture;
    			uniforms.transmissionSamplerSize.value.set( transmissionRenderTarget.width, transmissionRenderTarget.height );

    			if ( material.transmissionMap ) {

    				uniforms.transmissionMap.value = material.transmissionMap;

    			}

    			uniforms.thickness.value = material.thickness;

    			if ( material.thicknessMap ) {

    				uniforms.thicknessMap.value = material.thicknessMap;

    			}

    			uniforms.attenuationDistance.value = material.attenuationDistance;
    			uniforms.attenuationColor.value.copy( material.attenuationColor );

    		}

    		uniforms.specularIntensity.value = material.specularIntensity;
    		uniforms.specularColor.value.copy( material.specularColor );

    		if ( material.specularIntensityMap ) {

    			uniforms.specularIntensityMap.value = material.specularIntensityMap;

    		}

    		if ( material.specularColorMap ) {

    			uniforms.specularColorMap.value = material.specularColorMap;

    		}

    	}

    	function refreshUniformsMatcap( uniforms, material ) {

    		if ( material.matcap ) {

    			uniforms.matcap.value = material.matcap;

    		}

    	}

    	function refreshUniformsDistance( uniforms, material ) {

    		uniforms.referencePosition.value.copy( material.referencePosition );
    		uniforms.nearDistance.value = material.nearDistance;
    		uniforms.farDistance.value = material.farDistance;

    	}

    	return {
    		refreshFogUniforms: refreshFogUniforms,
    		refreshMaterialUniforms: refreshMaterialUniforms
    	};

    }

    function WebGLUniformsGroups( gl, info, capabilities, state ) {

    	let buffers = {};
    	let updateList = {};
    	let allocatedBindingPoints = [];

    	const maxBindingPoints = ( capabilities.isWebGL2 ) ? gl.getParameter( 35375 ) : 0; // binding points are global whereas block indices are per shader program

    	function bind( uniformsGroup, program ) {

    		const webglProgram = program.program;
    		state.uniformBlockBinding( uniformsGroup, webglProgram );

    	}

    	function update( uniformsGroup, program ) {

    		let buffer = buffers[ uniformsGroup.id ];

    		if ( buffer === undefined ) {

    			prepareUniformsGroup( uniformsGroup );

    			buffer = createBuffer( uniformsGroup );
    			buffers[ uniformsGroup.id ] = buffer;

    			uniformsGroup.addEventListener( 'dispose', onUniformsGroupsDispose );

    		}

    		// ensure to update the binding points/block indices mapping for this program

    		const webglProgram = program.program;
    		state.updateUBOMapping( uniformsGroup, webglProgram );

    		// update UBO once per frame

    		const frame = info.render.frame;

    		if ( updateList[ uniformsGroup.id ] !== frame ) {

    			updateBufferData( uniformsGroup );

    			updateList[ uniformsGroup.id ] = frame;

    		}

    	}

    	function createBuffer( uniformsGroup ) {

    		// the setup of an UBO is independent of a particular shader program but global

    		const bindingPointIndex = allocateBindingPointIndex();
    		uniformsGroup.__bindingPointIndex = bindingPointIndex;

    		const buffer = gl.createBuffer();
    		const size = uniformsGroup.__size;
    		const usage = uniformsGroup.usage;

    		gl.bindBuffer( 35345, buffer );
    		gl.bufferData( 35345, size, usage );
    		gl.bindBuffer( 35345, null );
    		gl.bindBufferBase( 35345, bindingPointIndex, buffer );

    		return buffer;

    	}

    	function allocateBindingPointIndex() {

    		for ( let i = 0; i < maxBindingPoints; i ++ ) {

    			if ( allocatedBindingPoints.indexOf( i ) === - 1 ) {

    				allocatedBindingPoints.push( i );
    				return i;

    			}

    		}

    		console.error( 'THREE.WebGLRenderer: Maximum number of simultaneously usable uniforms groups reached.' );

    		return 0;

    	}

    	function updateBufferData( uniformsGroup ) {

    		const buffer = buffers[ uniformsGroup.id ];
    		const uniforms = uniformsGroup.uniforms;
    		const cache = uniformsGroup.__cache;

    		gl.bindBuffer( 35345, buffer );

    		for ( let i = 0, il = uniforms.length; i < il; i ++ ) {

    			const uniform = uniforms[ i ];

    			// partly update the buffer if necessary

    			if ( hasUniformChanged( uniform, i, cache ) === true ) {

    				const value = uniform.value;
    				const offset = uniform.__offset;

    				if ( typeof value === 'number' ) {

    					uniform.__data[ 0 ] = value;
    					gl.bufferSubData( 35345, offset, uniform.__data );

    				} else {

    					if ( uniform.value.isMatrix3 ) {

    						// manually converting 3x3 to 3x4

    						uniform.__data[ 0 ] = uniform.value.elements[ 0 ];
    						uniform.__data[ 1 ] = uniform.value.elements[ 1 ];
    						uniform.__data[ 2 ] = uniform.value.elements[ 2 ];
    						uniform.__data[ 3 ] = uniform.value.elements[ 0 ];
    						uniform.__data[ 4 ] = uniform.value.elements[ 3 ];
    						uniform.__data[ 5 ] = uniform.value.elements[ 4 ];
    						uniform.__data[ 6 ] = uniform.value.elements[ 5 ];
    						uniform.__data[ 7 ] = uniform.value.elements[ 0 ];
    						uniform.__data[ 8 ] = uniform.value.elements[ 6 ];
    						uniform.__data[ 9 ] = uniform.value.elements[ 7 ];
    						uniform.__data[ 10 ] = uniform.value.elements[ 8 ];
    						uniform.__data[ 11 ] = uniform.value.elements[ 0 ];

    					} else {

    						value.toArray( uniform.__data );

    					}

    					gl.bufferSubData( 35345, offset, uniform.__data );

    				}

    			}

    		}

    		gl.bindBuffer( 35345, null );

    	}

    	function hasUniformChanged( uniform, index, cache ) {

    		const value = uniform.value;

    		if ( cache[ index ] === undefined ) {

    			// cache entry does not exist so far

    			if ( typeof value === 'number' ) {

    				cache[ index ] = value;

    			} else {

    				cache[ index ] = value.clone();

    			}

    			return true;

    		} else {

    			// compare current value with cached entry

    			if ( typeof value === 'number' ) {

    				if ( cache[ index ] !== value ) {

    					cache[ index ] = value;
    					return true;

    				}

    			} else {

    				const cachedObject = cache[ index ];

    				if ( cachedObject.equals( value ) === false ) {

    					cachedObject.copy( value );
    					return true;

    				}

    			}

    		}

    		return false;

    	}

    	function prepareUniformsGroup( uniformsGroup ) {

    		// determine total buffer size according to the STD140 layout
    		// Hint: STD140 is the only supported layout in WebGL 2

    		const uniforms = uniformsGroup.uniforms;

    		let offset = 0; // global buffer offset in bytes
    		const chunkSize = 16; // size of a chunk in bytes
    		let chunkOffset = 0; // offset within a single chunk in bytes

    		for ( let i = 0, l = uniforms.length; i < l; i ++ ) {

    			const uniform = uniforms[ i ];
    			const info = getUniformSize( uniform );

    			// the following two properties will be used for partial buffer updates

    			uniform.__data = new Float32Array( info.storage / Float32Array.BYTES_PER_ELEMENT );
    			uniform.__offset = offset;

    			//

    			if ( i > 0 ) {

    				chunkOffset = offset % chunkSize;

    				const remainingSizeInChunk = chunkSize - chunkOffset;

    				// check for chunk overflow

    				if ( chunkOffset !== 0 && ( remainingSizeInChunk - info.boundary ) < 0 ) {

    					// add padding and adjust offset

    					offset += ( chunkSize - chunkOffset );
    					uniform.__offset = offset;

    				}

    			}

    			offset += info.storage;

    		}

    		// ensure correct final padding

    		chunkOffset = offset % chunkSize;

    		if ( chunkOffset > 0 ) offset += ( chunkSize - chunkOffset );

    		//

    		uniformsGroup.__size = offset;
    		uniformsGroup.__cache = {};

    		return this;

    	}

    	function getUniformSize( uniform ) {

    		const value = uniform.value;

    		const info = {
    			boundary: 0, // bytes
    			storage: 0 // bytes
    		};

    		// determine sizes according to STD140

    		if ( typeof value === 'number' ) {

    			// float/int

    			info.boundary = 4;
    			info.storage = 4;

    		} else if ( value.isVector2 ) {

    			// vec2

    			info.boundary = 8;
    			info.storage = 8;

    		} else if ( value.isVector3 || value.isColor ) {

    			// vec3

    			info.boundary = 16;
    			info.storage = 12; // evil: vec3 must start on a 16-byte boundary but it only consumes 12 bytes

    		} else if ( value.isVector4 ) {

    			// vec4

    			info.boundary = 16;
    			info.storage = 16;

    		} else if ( value.isMatrix3 ) {

    			// mat3 (in STD140 a 3x3 matrix is represented as 3x4)

    			info.boundary = 48;
    			info.storage = 48;

    		} else if ( value.isMatrix4 ) {

    			// mat4

    			info.boundary = 64;
    			info.storage = 64;

    		} else if ( value.isTexture ) {

    			console.warn( 'THREE.WebGLRenderer: Texture samplers can not be part of an uniforms group.' );

    		} else {

    			console.warn( 'THREE.WebGLRenderer: Unsupported uniform value type.', value );

    		}

    		return info;

    	}

    	function onUniformsGroupsDispose( event ) {

    		const uniformsGroup = event.target;

    		uniformsGroup.removeEventListener( 'dispose', onUniformsGroupsDispose );

    		const index = allocatedBindingPoints.indexOf( uniformsGroup.__bindingPointIndex );
    		allocatedBindingPoints.splice( index, 1 );

    		gl.deleteBuffer( buffers[ uniformsGroup.id ] );

    		delete buffers[ uniformsGroup.id ];
    		delete updateList[ uniformsGroup.id ];

    	}

    	function dispose() {

    		for ( const id in buffers ) {

    			gl.deleteBuffer( buffers[ id ] );

    		}

    		allocatedBindingPoints = [];
    		buffers = {};
    		updateList = {};

    	}

    	return {

    		bind: bind,
    		update: update,

    		dispose: dispose

    	};

    }

    function createCanvasElement() {

    	const canvas = createElementNS( 'canvas' );
    	canvas.style.display = 'block';
    	return canvas;

    }

    function WebGLRenderer( parameters = {} ) {

    	this.isWebGLRenderer = true;

    	const _canvas = parameters.canvas !== undefined ? parameters.canvas : createCanvasElement(),
    		_context = parameters.context !== undefined ? parameters.context : null,

    		_depth = parameters.depth !== undefined ? parameters.depth : true,
    		_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
    		_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
    		_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
    		_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
    		_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default',
    		_failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false;

    	let _alpha;

    	if ( _context !== null ) {

    		_alpha = _context.getContextAttributes().alpha;

    	} else {

    		_alpha = parameters.alpha !== undefined ? parameters.alpha : false;

    	}

    	let currentRenderList = null;
    	let currentRenderState = null;

    	// render() can be called from within a callback triggered by another render.
    	// We track this so that the nested render call gets its list and state isolated from the parent render call.

    	const renderListStack = [];
    	const renderStateStack = [];

    	// public properties

    	this.domElement = _canvas;

    	// Debug configuration container
    	this.debug = {

    		/**
    		 * Enables error checking and reporting when shader programs are being compiled
    		 * @type {boolean}
    		 */
    		checkShaderErrors: true
    	};

    	// clearing

    	this.autoClear = true;
    	this.autoClearColor = true;
    	this.autoClearDepth = true;
    	this.autoClearStencil = true;

    	// scene graph

    	this.sortObjects = true;

    	// user-defined clipping

    	this.clippingPlanes = [];
    	this.localClippingEnabled = false;

    	// physically based shading

    	this.outputEncoding = LinearEncoding;

    	// physical lights

    	this.physicallyCorrectLights = false;

    	// tone mapping

    	this.toneMapping = NoToneMapping;
    	this.toneMappingExposure = 1.0;

    	//

    	Object.defineProperties( this, {

    		// @deprecated since r136, 0e21088102b4de7e0a0a33140620b7a3424b9e6d

    		gammaFactor: {
    			get: function () {

    				console.warn( 'THREE.WebGLRenderer: .gammaFactor has been removed.' );
    				return 2;

    			},
    			set: function () {

    				console.warn( 'THREE.WebGLRenderer: .gammaFactor has been removed.' );

    			}
    		}

    	} );

    	// internal properties

    	const _this = this;

    	let _isContextLost = false;

    	// internal state cache

    	let _currentActiveCubeFace = 0;
    	let _currentActiveMipmapLevel = 0;
    	let _currentRenderTarget = null;
    	let _currentMaterialId = - 1;

    	let _currentCamera = null;

    	const _currentViewport = new Vector4();
    	const _currentScissor = new Vector4();
    	let _currentScissorTest = null;

    	//

    	let _width = _canvas.width;
    	let _height = _canvas.height;

    	let _pixelRatio = 1;
    	let _opaqueSort = null;
    	let _transparentSort = null;

    	const _viewport = new Vector4( 0, 0, _width, _height );
    	const _scissor = new Vector4( 0, 0, _width, _height );
    	let _scissorTest = false;

    	// frustum

    	const _frustum = new Frustum();

    	// clipping

    	let _clippingEnabled = false;
    	let _localClippingEnabled = false;

    	// transmission

    	let _transmissionRenderTarget = null;

    	// camera matrices cache

    	const _projScreenMatrix = new Matrix4();

    	const _vector2 = new Vector2();
    	const _vector3 = new Vector3();

    	const _emptyScene = { background: null, fog: null, environment: null, overrideMaterial: null, isScene: true };

    	function getTargetPixelRatio() {

    		return _currentRenderTarget === null ? _pixelRatio : 1;

    	}

    	// initialize

    	let _gl = _context;

    	function getContext( contextNames, contextAttributes ) {

    		for ( let i = 0; i < contextNames.length; i ++ ) {

    			const contextName = contextNames[ i ];
    			const context = _canvas.getContext( contextName, contextAttributes );
    			if ( context !== null ) return context;

    		}

    		return null;

    	}

    	try {

    		const contextAttributes = {
    			alpha: true,
    			depth: _depth,
    			stencil: _stencil,
    			antialias: _antialias,
    			premultipliedAlpha: _premultipliedAlpha,
    			preserveDrawingBuffer: _preserveDrawingBuffer,
    			powerPreference: _powerPreference,
    			failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat
    		};

    		// OffscreenCanvas does not have setAttribute, see #22811
    		if ( 'setAttribute' in _canvas ) _canvas.setAttribute( 'data-engine', `three.js r${REVISION}` );

    		// event listeners must be registered before WebGL context is created, see #12753
    		_canvas.addEventListener( 'webglcontextlost', onContextLost, false );
    		_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );
    		_canvas.addEventListener( 'webglcontextcreationerror', onContextCreationError, false );

    		if ( _gl === null ) {

    			const contextNames = [ 'webgl2', 'webgl', 'experimental-webgl' ];

    			if ( _this.isWebGL1Renderer === true ) {

    				contextNames.shift();

    			}

    			_gl = getContext( contextNames, contextAttributes );

    			if ( _gl === null ) {

    				if ( getContext( contextNames ) ) {

    					throw new Error( 'Error creating WebGL context with your selected attributes.' );

    				} else {

    					throw new Error( 'Error creating WebGL context.' );

    				}

    			}

    		}

    		// Some experimental-webgl implementations do not have getShaderPrecisionFormat

    		if ( _gl.getShaderPrecisionFormat === undefined ) {

    			_gl.getShaderPrecisionFormat = function () {

    				return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };

    			};

    		}

    	} catch ( error ) {

    		console.error( 'THREE.WebGLRenderer: ' + error.message );
    		throw error;

    	}

    	let extensions, capabilities, state, info;
    	let properties, textures, cubemaps, cubeuvmaps, attributes, geometries, objects;
    	let programCache, materials, renderLists, renderStates, clipping, shadowMap;

    	let background, morphtargets, bufferRenderer, indexedBufferRenderer;

    	let utils, bindingStates, uniformsGroups;

    	function initGLContext() {

    		extensions = new WebGLExtensions( _gl );

    		capabilities = new WebGLCapabilities( _gl, extensions, parameters );

    		extensions.init( capabilities );

    		utils = new WebGLUtils( _gl, extensions, capabilities );

    		state = new WebGLState( _gl, extensions, capabilities );

    		info = new WebGLInfo();
    		properties = new WebGLProperties();
    		textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info );
    		cubemaps = new WebGLCubeMaps( _this );
    		cubeuvmaps = new WebGLCubeUVMaps( _this );
    		attributes = new WebGLAttributes( _gl, capabilities );
    		bindingStates = new WebGLBindingStates( _gl, extensions, attributes, capabilities );
    		geometries = new WebGLGeometries( _gl, attributes, info, bindingStates );
    		objects = new WebGLObjects( _gl, geometries, attributes, info );
    		morphtargets = new WebGLMorphtargets( _gl, capabilities, textures );
    		clipping = new WebGLClipping( properties );
    		programCache = new WebGLPrograms( _this, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping );
    		materials = new WebGLMaterials( _this, properties );
    		renderLists = new WebGLRenderLists();
    		renderStates = new WebGLRenderStates( extensions, capabilities );
    		background = new WebGLBackground( _this, cubemaps, state, objects, _alpha, _premultipliedAlpha );
    		shadowMap = new WebGLShadowMap( _this, objects, capabilities );
    		uniformsGroups = new WebGLUniformsGroups( _gl, info, capabilities, state );

    		bufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities );
    		indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities );

    		info.programs = programCache.programs;

    		_this.capabilities = capabilities;
    		_this.extensions = extensions;
    		_this.properties = properties;
    		_this.renderLists = renderLists;
    		_this.shadowMap = shadowMap;
    		_this.state = state;
    		_this.info = info;

    	}

    	initGLContext();

    	// xr

    	const xr = new WebXRManager( _this, _gl );

    	this.xr = xr;

    	// API

    	this.getContext = function () {

    		return _gl;

    	};

    	this.getContextAttributes = function () {

    		return _gl.getContextAttributes();

    	};

    	this.forceContextLoss = function () {

    		const extension = extensions.get( 'WEBGL_lose_context' );
    		if ( extension ) extension.loseContext();

    	};

    	this.forceContextRestore = function () {

    		const extension = extensions.get( 'WEBGL_lose_context' );
    		if ( extension ) extension.restoreContext();

    	};

    	this.getPixelRatio = function () {

    		return _pixelRatio;

    	};

    	this.setPixelRatio = function ( value ) {

    		if ( value === undefined ) return;

    		_pixelRatio = value;

    		this.setSize( _width, _height, false );

    	};

    	this.getSize = function ( target ) {

    		return target.set( _width, _height );

    	};

    	this.setSize = function ( width, height, updateStyle ) {

    		if ( xr.isPresenting ) {

    			console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
    			return;

    		}

    		_width = width;
    		_height = height;

    		_canvas.width = Math.floor( width * _pixelRatio );
    		_canvas.height = Math.floor( height * _pixelRatio );

    		if ( updateStyle !== false ) {

    			_canvas.style.width = width + 'px';
    			_canvas.style.height = height + 'px';

    		}

    		this.setViewport( 0, 0, width, height );

    	};

    	this.getDrawingBufferSize = function ( target ) {

    		return target.set( _width * _pixelRatio, _height * _pixelRatio ).floor();

    	};

    	this.setDrawingBufferSize = function ( width, height, pixelRatio ) {

    		_width = width;
    		_height = height;

    		_pixelRatio = pixelRatio;

    		_canvas.width = Math.floor( width * pixelRatio );
    		_canvas.height = Math.floor( height * pixelRatio );

    		this.setViewport( 0, 0, width, height );

    	};

    	this.getCurrentViewport = function ( target ) {

    		return target.copy( _currentViewport );

    	};

    	this.getViewport = function ( target ) {

    		return target.copy( _viewport );

    	};

    	this.setViewport = function ( x, y, width, height ) {

    		if ( x.isVector4 ) {

    			_viewport.set( x.x, x.y, x.z, x.w );

    		} else {

    			_viewport.set( x, y, width, height );

    		}

    		state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor() );

    	};

    	this.getScissor = function ( target ) {

    		return target.copy( _scissor );

    	};

    	this.setScissor = function ( x, y, width, height ) {

    		if ( x.isVector4 ) {

    			_scissor.set( x.x, x.y, x.z, x.w );

    		} else {

    			_scissor.set( x, y, width, height );

    		}

    		state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor() );

    	};

    	this.getScissorTest = function () {

    		return _scissorTest;

    	};

    	this.setScissorTest = function ( boolean ) {

    		state.setScissorTest( _scissorTest = boolean );

    	};

    	this.setOpaqueSort = function ( method ) {

    		_opaqueSort = method;

    	};

    	this.setTransparentSort = function ( method ) {

    		_transparentSort = method;

    	};

    	// Clearing

    	this.getClearColor = function ( target ) {

    		return target.copy( background.getClearColor() );

    	};

    	this.setClearColor = function () {

    		background.setClearColor.apply( background, arguments );

    	};

    	this.getClearAlpha = function () {

    		return background.getClearAlpha();

    	};

    	this.setClearAlpha = function () {

    		background.setClearAlpha.apply( background, arguments );

    	};

    	this.clear = function ( color = true, depth = true, stencil = true ) {

    		let bits = 0;

    		if ( color ) bits |= 16384;
    		if ( depth ) bits |= 256;
    		if ( stencil ) bits |= 1024;

    		_gl.clear( bits );

    	};

    	this.clearColor = function () {

    		this.clear( true, false, false );

    	};

    	this.clearDepth = function () {

    		this.clear( false, true, false );

    	};

    	this.clearStencil = function () {

    		this.clear( false, false, true );

    	};

    	//

    	this.dispose = function () {

    		_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );
    		_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );
    		_canvas.removeEventListener( 'webglcontextcreationerror', onContextCreationError, false );

    		renderLists.dispose();
    		renderStates.dispose();
    		properties.dispose();
    		cubemaps.dispose();
    		cubeuvmaps.dispose();
    		objects.dispose();
    		bindingStates.dispose();
    		uniformsGroups.dispose();
    		programCache.dispose();

    		xr.dispose();

    		xr.removeEventListener( 'sessionstart', onXRSessionStart );
    		xr.removeEventListener( 'sessionend', onXRSessionEnd );

    		if ( _transmissionRenderTarget ) {

    			_transmissionRenderTarget.dispose();
    			_transmissionRenderTarget = null;

    		}

    		animation.stop();

    	};

    	// Events

    	function onContextLost( event ) {

    		event.preventDefault();

    		console.log( 'THREE.WebGLRenderer: Context Lost.' );

    		_isContextLost = true;

    	}

    	function onContextRestore( /* event */ ) {

    		console.log( 'THREE.WebGLRenderer: Context Restored.' );

    		_isContextLost = false;

    		const infoAutoReset = info.autoReset;
    		const shadowMapEnabled = shadowMap.enabled;
    		const shadowMapAutoUpdate = shadowMap.autoUpdate;
    		const shadowMapNeedsUpdate = shadowMap.needsUpdate;
    		const shadowMapType = shadowMap.type;

    		initGLContext();

    		info.autoReset = infoAutoReset;
    		shadowMap.enabled = shadowMapEnabled;
    		shadowMap.autoUpdate = shadowMapAutoUpdate;
    		shadowMap.needsUpdate = shadowMapNeedsUpdate;
    		shadowMap.type = shadowMapType;

    	}

    	function onContextCreationError( event ) {

    		console.error( 'THREE.WebGLRenderer: A WebGL context could not be created. Reason: ', event.statusMessage );

    	}

    	function onMaterialDispose( event ) {

    		const material = event.target;

    		material.removeEventListener( 'dispose', onMaterialDispose );

    		deallocateMaterial( material );

    	}

    	// Buffer deallocation

    	function deallocateMaterial( material ) {

    		releaseMaterialProgramReferences( material );

    		properties.remove( material );

    	}


    	function releaseMaterialProgramReferences( material ) {

    		const programs = properties.get( material ).programs;

    		if ( programs !== undefined ) {

    			programs.forEach( function ( program ) {

    				programCache.releaseProgram( program );

    			} );

    			if ( material.isShaderMaterial ) {

    				programCache.releaseShaderCache( material );

    			}

    		}

    	}

    	// Buffer rendering

    	this.renderBufferDirect = function ( camera, scene, geometry, material, object, group ) {

    		if ( scene === null ) scene = _emptyScene; // renderBufferDirect second parameter used to be fog (could be null)

    		const frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 );

    		const program = setProgram( camera, scene, geometry, material, object );

    		state.setMaterial( material, frontFaceCW );

    		//

    		let index = geometry.index;
    		const position = geometry.attributes.position;

    		//

    		if ( index === null ) {

    			if ( position === undefined || position.count === 0 ) return;

    		} else if ( index.count === 0 ) {

    			return;

    		}

    		//

    		let rangeFactor = 1;

    		if ( material.wireframe === true ) {

    			index = geometries.getWireframeAttribute( geometry );
    			rangeFactor = 2;

    		}

    		bindingStates.setup( object, material, program, geometry, index );

    		let attribute;
    		let renderer = bufferRenderer;

    		if ( index !== null ) {

    			attribute = attributes.get( index );

    			renderer = indexedBufferRenderer;
    			renderer.setIndex( attribute );

    		}

    		//

    		const dataCount = ( index !== null ) ? index.count : position.count;

    		const rangeStart = geometry.drawRange.start * rangeFactor;
    		const rangeCount = geometry.drawRange.count * rangeFactor;

    		const groupStart = group !== null ? group.start * rangeFactor : 0;
    		const groupCount = group !== null ? group.count * rangeFactor : Infinity;

    		const drawStart = Math.max( rangeStart, groupStart );
    		const drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;

    		const drawCount = Math.max( 0, drawEnd - drawStart + 1 );

    		if ( drawCount === 0 ) return;

    		//

    		if ( object.isMesh ) {

    			if ( material.wireframe === true ) {

    				state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
    				renderer.setMode( 1 );

    			} else {

    				renderer.setMode( 4 );

    			}

    		} else if ( object.isLine ) {

    			let lineWidth = material.linewidth;

    			if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material

    			state.setLineWidth( lineWidth * getTargetPixelRatio() );

    			if ( object.isLineSegments ) {

    				renderer.setMode( 1 );

    			} else if ( object.isLineLoop ) {

    				renderer.setMode( 2 );

    			} else {

    				renderer.setMode( 3 );

    			}

    		} else if ( object.isPoints ) {

    			renderer.setMode( 0 );

    		} else if ( object.isSprite ) {

    			renderer.setMode( 4 );

    		}

    		if ( object.isInstancedMesh ) {

    			renderer.renderInstances( drawStart, drawCount, object.count );

    		} else if ( geometry.isInstancedBufferGeometry ) {

    			const instanceCount = Math.min( geometry.instanceCount, geometry._maxInstanceCount );

    			renderer.renderInstances( drawStart, drawCount, instanceCount );

    		} else {

    			renderer.render( drawStart, drawCount );

    		}

    	};

    	// Compile

    	this.compile = function ( scene, camera ) {

    		function prepare( material, scene, object ) {

    			if ( material.transparent === true && material.side === DoubleSide ) {

    				material.side = BackSide;
    				material.needsUpdate = true;
    				getProgram( material, scene, object );

    				material.side = FrontSide;
    				material.needsUpdate = true;
    				getProgram( material, scene, object );

    				material.side = DoubleSide;

    			} else {

    				getProgram( material, scene, object );

    			}

    		}

    		currentRenderState = renderStates.get( scene );
    		currentRenderState.init();

    		renderStateStack.push( currentRenderState );

    		scene.traverseVisible( function ( object ) {

    			if ( object.isLight && object.layers.test( camera.layers ) ) {

    				currentRenderState.pushLight( object );

    				if ( object.castShadow ) {

    					currentRenderState.pushShadow( object );

    				}

    			}

    		} );

    		currentRenderState.setupLights( _this.physicallyCorrectLights );

    		scene.traverse( function ( object ) {

    			const material = object.material;

    			if ( material ) {

    				if ( Array.isArray( material ) ) {

    					for ( let i = 0; i < material.length; i ++ ) {

    						const material2 = material[ i ];

    						prepare( material2, scene, object );

    					}

    				} else {

    					prepare( material, scene, object );

    				}

    			}

    		} );

    		renderStateStack.pop();
    		currentRenderState = null;

    	};

    	// Animation Loop

    	let onAnimationFrameCallback = null;

    	function onAnimationFrame( time ) {

    		if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );

    	}

    	function onXRSessionStart() {

    		animation.stop();

    	}

    	function onXRSessionEnd() {

    		animation.start();

    	}

    	const animation = new WebGLAnimation();
    	animation.setAnimationLoop( onAnimationFrame );

    	if ( typeof self !== 'undefined' ) animation.setContext( self );

    	this.setAnimationLoop = function ( callback ) {

    		onAnimationFrameCallback = callback;
    		xr.setAnimationLoop( callback );

    		( callback === null ) ? animation.stop() : animation.start();

    	};

    	xr.addEventListener( 'sessionstart', onXRSessionStart );
    	xr.addEventListener( 'sessionend', onXRSessionEnd );

    	// Rendering

    	this.render = function ( scene, camera ) {

    		if ( camera !== undefined && camera.isCamera !== true ) {

    			console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
    			return;

    		}

    		if ( _isContextLost === true ) return;

    		// update scene graph

    		if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();

    		// update camera matrices and frustum

    		if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();

    		if ( xr.enabled === true && xr.isPresenting === true ) {

    			if ( xr.cameraAutoUpdate === true ) xr.updateCamera( camera );

    			camera = xr.getCamera(); // use XR camera for rendering

    		}

    		//
    		if ( scene.isScene === true ) scene.onBeforeRender( _this, scene, camera, _currentRenderTarget );

    		currentRenderState = renderStates.get( scene, renderStateStack.length );
    		currentRenderState.init();

    		renderStateStack.push( currentRenderState );

    		_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
    		_frustum.setFromProjectionMatrix( _projScreenMatrix );

    		_localClippingEnabled = this.localClippingEnabled;
    		_clippingEnabled = clipping.init( this.clippingPlanes, _localClippingEnabled, camera );

    		currentRenderList = renderLists.get( scene, renderListStack.length );
    		currentRenderList.init();

    		renderListStack.push( currentRenderList );

    		projectObject( scene, camera, 0, _this.sortObjects );

    		currentRenderList.finish();

    		if ( _this.sortObjects === true ) {

    			currentRenderList.sort( _opaqueSort, _transparentSort );

    		}

    		//

    		if ( _clippingEnabled === true ) clipping.beginShadows();

    		const shadowsArray = currentRenderState.state.shadowsArray;

    		shadowMap.render( shadowsArray, scene, camera );

    		if ( _clippingEnabled === true ) clipping.endShadows();

    		//

    		if ( this.info.autoReset === true ) this.info.reset();

    		//

    		background.render( currentRenderList, scene );

    		// render scene

    		currentRenderState.setupLights( _this.physicallyCorrectLights );

    		if ( camera.isArrayCamera ) {

    			const cameras = camera.cameras;

    			for ( let i = 0, l = cameras.length; i < l; i ++ ) {

    				const camera2 = cameras[ i ];

    				renderScene( currentRenderList, scene, camera2, camera2.viewport );

    			}

    		} else {

    			renderScene( currentRenderList, scene, camera );

    		}

    		//

    		if ( _currentRenderTarget !== null ) {

    			// resolve multisample renderbuffers to a single-sample texture if necessary

    			textures.updateMultisampleRenderTarget( _currentRenderTarget );

    			// Generate mipmap if we're using any kind of mipmap filtering

    			textures.updateRenderTargetMipmap( _currentRenderTarget );

    		}

    		//

    		if ( scene.isScene === true ) scene.onAfterRender( _this, scene, camera );

    		// _gl.finish();

    		bindingStates.resetDefaultState();
    		_currentMaterialId = - 1;
    		_currentCamera = null;

    		renderStateStack.pop();

    		if ( renderStateStack.length > 0 ) {

    			currentRenderState = renderStateStack[ renderStateStack.length - 1 ];

    		} else {

    			currentRenderState = null;

    		}

    		renderListStack.pop();

    		if ( renderListStack.length > 0 ) {

    			currentRenderList = renderListStack[ renderListStack.length - 1 ];

    		} else {

    			currentRenderList = null;

    		}

    	};

    	function projectObject( object, camera, groupOrder, sortObjects ) {

    		if ( object.visible === false ) return;

    		const visible = object.layers.test( camera.layers );

    		if ( visible ) {

    			if ( object.isGroup ) {

    				groupOrder = object.renderOrder;

    			} else if ( object.isLOD ) {

    				if ( object.autoUpdate === true ) object.update( camera );

    			} else if ( object.isLight ) {

    				currentRenderState.pushLight( object );

    				if ( object.castShadow ) {

    					currentRenderState.pushShadow( object );

    				}

    			} else if ( object.isSprite ) {

    				if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {

    					if ( sortObjects ) {

    						_vector3.setFromMatrixPosition( object.matrixWorld )
    							.applyMatrix4( _projScreenMatrix );

    					}

    					const geometry = objects.update( object );
    					const material = object.material;

    					if ( material.visible ) {

    						currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null );

    					}

    				}

    			} else if ( object.isMesh || object.isLine || object.isPoints ) {

    				if ( object.isSkinnedMesh ) {

    					// update skeleton only once in a frame

    					if ( object.skeleton.frame !== info.render.frame ) {

    						object.skeleton.update();
    						object.skeleton.frame = info.render.frame;

    					}

    				}

    				if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {

    					if ( sortObjects ) {

    						_vector3.setFromMatrixPosition( object.matrixWorld )
    							.applyMatrix4( _projScreenMatrix );

    					}

    					const geometry = objects.update( object );
    					const material = object.material;

    					if ( Array.isArray( material ) ) {

    						const groups = geometry.groups;

    						for ( let i = 0, l = groups.length; i < l; i ++ ) {

    							const group = groups[ i ];
    							const groupMaterial = material[ group.materialIndex ];

    							if ( groupMaterial && groupMaterial.visible ) {

    								currentRenderList.push( object, geometry, groupMaterial, groupOrder, _vector3.z, group );

    							}

    						}

    					} else if ( material.visible ) {

    						currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null );

    					}

    				}

    			}

    		}

    		const children = object.children;

    		for ( let i = 0, l = children.length; i < l; i ++ ) {

    			projectObject( children[ i ], camera, groupOrder, sortObjects );

    		}

    	}

    	function renderScene( currentRenderList, scene, camera, viewport ) {

    		const opaqueObjects = currentRenderList.opaque;
    		const transmissiveObjects = currentRenderList.transmissive;
    		const transparentObjects = currentRenderList.transparent;

    		currentRenderState.setupLightsView( camera );

    		if ( transmissiveObjects.length > 0 ) renderTransmissionPass( opaqueObjects, scene, camera );

    		if ( viewport ) state.viewport( _currentViewport.copy( viewport ) );

    		if ( opaqueObjects.length > 0 ) renderObjects( opaqueObjects, scene, camera );
    		if ( transmissiveObjects.length > 0 ) renderObjects( transmissiveObjects, scene, camera );
    		if ( transparentObjects.length > 0 ) renderObjects( transparentObjects, scene, camera );

    		// Ensure depth buffer writing is enabled so it can be cleared on next render

    		state.buffers.depth.setTest( true );
    		state.buffers.depth.setMask( true );
    		state.buffers.color.setMask( true );

    		state.setPolygonOffset( false );

    	}

    	function renderTransmissionPass( opaqueObjects, scene, camera ) {

    		const isWebGL2 = capabilities.isWebGL2;

    		if ( _transmissionRenderTarget === null ) {

    			_transmissionRenderTarget = new WebGLRenderTarget( 1, 1, {
    				generateMipmaps: true,
    				type: extensions.has( 'EXT_color_buffer_half_float' ) ? HalfFloatType : UnsignedByteType,
    				minFilter: LinearMipmapLinearFilter,
    				samples: ( isWebGL2 && _antialias === true ) ? 4 : 0
    			} );

    		}

    		_this.getDrawingBufferSize( _vector2 );

    		if ( isWebGL2 ) {

    			_transmissionRenderTarget.setSize( _vector2.x, _vector2.y );

    		} else {

    			_transmissionRenderTarget.setSize( floorPowerOfTwo( _vector2.x ), floorPowerOfTwo( _vector2.y ) );

    		}

    		//

    		const currentRenderTarget = _this.getRenderTarget();
    		_this.setRenderTarget( _transmissionRenderTarget );
    		_this.clear();

    		// Turn off the features which can affect the frag color for opaque objects pass.
    		// Otherwise they are applied twice in opaque objects pass and transmission objects pass.
    		const currentToneMapping = _this.toneMapping;
    		_this.toneMapping = NoToneMapping;

    		renderObjects( opaqueObjects, scene, camera );

    		_this.toneMapping = currentToneMapping;

    		textures.updateMultisampleRenderTarget( _transmissionRenderTarget );
    		textures.updateRenderTargetMipmap( _transmissionRenderTarget );

    		_this.setRenderTarget( currentRenderTarget );

    	}

    	function renderObjects( renderList, scene, camera ) {

    		const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;

    		for ( let i = 0, l = renderList.length; i < l; i ++ ) {

    			const renderItem = renderList[ i ];

    			const object = renderItem.object;
    			const geometry = renderItem.geometry;
    			const material = overrideMaterial === null ? renderItem.material : overrideMaterial;
    			const group = renderItem.group;

    			if ( object.layers.test( camera.layers ) ) {

    				renderObject( object, scene, camera, geometry, material, group );

    			}

    		}

    	}

    	function renderObject( object, scene, camera, geometry, material, group ) {

    		object.onBeforeRender( _this, scene, camera, geometry, material, group );

    		object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
    		object.normalMatrix.getNormalMatrix( object.modelViewMatrix );

    		material.onBeforeRender( _this, scene, camera, geometry, object, group );

    		if ( material.transparent === true && material.side === DoubleSide ) {

    			material.side = BackSide;
    			material.needsUpdate = true;
    			_this.renderBufferDirect( camera, scene, geometry, material, object, group );

    			material.side = FrontSide;
    			material.needsUpdate = true;
    			_this.renderBufferDirect( camera, scene, geometry, material, object, group );

    			material.side = DoubleSide;

    		} else {

    			_this.renderBufferDirect( camera, scene, geometry, material, object, group );

    		}

    		object.onAfterRender( _this, scene, camera, geometry, material, group );

    	}

    	function getProgram( material, scene, object ) {

    		if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...

    		const materialProperties = properties.get( material );

    		const lights = currentRenderState.state.lights;
    		const shadowsArray = currentRenderState.state.shadowsArray;

    		const lightsStateVersion = lights.state.version;

    		const parameters = programCache.getParameters( material, lights.state, shadowsArray, scene, object );
    		const programCacheKey = programCache.getProgramCacheKey( parameters );

    		let programs = materialProperties.programs;

    		// always update environment and fog - changing these trigger an getProgram call, but it's possible that the program doesn't change

    		materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null;
    		materialProperties.fog = scene.fog;
    		materialProperties.envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || materialProperties.environment );

    		if ( programs === undefined ) {

    			// new material

    			material.addEventListener( 'dispose', onMaterialDispose );

    			programs = new Map();
    			materialProperties.programs = programs;

    		}

    		let program = programs.get( programCacheKey );

    		if ( program !== undefined ) {

    			// early out if program and light state is identical

    			if ( materialProperties.currentProgram === program && materialProperties.lightsStateVersion === lightsStateVersion ) {

    				updateCommonMaterialProperties( material, parameters );

    				return program;

    			}

    		} else {

    			parameters.uniforms = programCache.getUniforms( material );

    			material.onBuild( object, parameters, _this );

    			material.onBeforeCompile( parameters, _this );

    			program = programCache.acquireProgram( parameters, programCacheKey );
    			programs.set( programCacheKey, program );

    			materialProperties.uniforms = parameters.uniforms;

    		}

    		const uniforms = materialProperties.uniforms;

    		if ( ( ! material.isShaderMaterial && ! material.isRawShaderMaterial ) || material.clipping === true ) {

    			uniforms.clippingPlanes = clipping.uniform;

    		}

    		updateCommonMaterialProperties( material, parameters );

    		// store the light setup it was created for

    		materialProperties.needsLights = materialNeedsLights( material );
    		materialProperties.lightsStateVersion = lightsStateVersion;

    		if ( materialProperties.needsLights ) {

    			// wire up the material to this renderer's lighting state

    			uniforms.ambientLightColor.value = lights.state.ambient;
    			uniforms.lightProbe.value = lights.state.probe;
    			uniforms.directionalLights.value = lights.state.directional;
    			uniforms.directionalLightShadows.value = lights.state.directionalShadow;
    			uniforms.spotLights.value = lights.state.spot;
    			uniforms.spotLightShadows.value = lights.state.spotShadow;
    			uniforms.rectAreaLights.value = lights.state.rectArea;
    			uniforms.ltc_1.value = lights.state.rectAreaLTC1;
    			uniforms.ltc_2.value = lights.state.rectAreaLTC2;
    			uniforms.pointLights.value = lights.state.point;
    			uniforms.pointLightShadows.value = lights.state.pointShadow;
    			uniforms.hemisphereLights.value = lights.state.hemi;

    			uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
    			uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
    			uniforms.spotShadowMap.value = lights.state.spotShadowMap;
    			uniforms.spotLightMatrix.value = lights.state.spotLightMatrix;
    			uniforms.spotLightMap.value = lights.state.spotLightMap;
    			uniforms.pointShadowMap.value = lights.state.pointShadowMap;
    			uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
    			// TODO (abelnation): add area lights shadow info to uniforms

    		}

    		const progUniforms = program.getUniforms();
    		const uniformsList = WebGLUniforms.seqWithValue( progUniforms.seq, uniforms );

    		materialProperties.currentProgram = program;
    		materialProperties.uniformsList = uniformsList;

    		return program;

    	}

    	function updateCommonMaterialProperties( material, parameters ) {

    		const materialProperties = properties.get( material );

    		materialProperties.outputEncoding = parameters.outputEncoding;
    		materialProperties.instancing = parameters.instancing;
    		materialProperties.skinning = parameters.skinning;
    		materialProperties.morphTargets = parameters.morphTargets;
    		materialProperties.morphNormals = parameters.morphNormals;
    		materialProperties.morphColors = parameters.morphColors;
    		materialProperties.morphTargetsCount = parameters.morphTargetsCount;
    		materialProperties.numClippingPlanes = parameters.numClippingPlanes;
    		materialProperties.numIntersection = parameters.numClipIntersection;
    		materialProperties.vertexAlphas = parameters.vertexAlphas;
    		materialProperties.vertexTangents = parameters.vertexTangents;
    		materialProperties.toneMapping = parameters.toneMapping;

    	}

    	function setProgram( camera, scene, geometry, material, object ) {

    		if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...

    		textures.resetTextureUnits();

    		const fog = scene.fog;
    		const environment = material.isMeshStandardMaterial ? scene.environment : null;
    		const encoding = ( _currentRenderTarget === null ) ? _this.outputEncoding : ( _currentRenderTarget.isXRRenderTarget === true ? _currentRenderTarget.texture.encoding : LinearEncoding );
    		const envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || environment );
    		const vertexAlphas = material.vertexColors === true && !! geometry.attributes.color && geometry.attributes.color.itemSize === 4;
    		const vertexTangents = !! material.normalMap && !! geometry.attributes.tangent;
    		const morphTargets = !! geometry.morphAttributes.position;
    		const morphNormals = !! geometry.morphAttributes.normal;
    		const morphColors = !! geometry.morphAttributes.color;
    		const toneMapping = material.toneMapped ? _this.toneMapping : NoToneMapping;

    		const morphAttribute = geometry.morphAttributes.position || geometry.morphAttributes.normal || geometry.morphAttributes.color;
    		const morphTargetsCount = ( morphAttribute !== undefined ) ? morphAttribute.length : 0;

    		const materialProperties = properties.get( material );
    		const lights = currentRenderState.state.lights;

    		if ( _clippingEnabled === true ) {

    			if ( _localClippingEnabled === true || camera !== _currentCamera ) {

    				const useCache =
    					camera === _currentCamera &&
    					material.id === _currentMaterialId;

    				// we might want to call this function with some ClippingGroup
    				// object instead of the material, once it becomes feasible
    				// (#8465, #8379)
    				clipping.setState( material, camera, useCache );

    			}

    		}

    		//

    		let needsProgramChange = false;

    		if ( material.version === materialProperties.__version ) {

    			if ( materialProperties.needsLights && ( materialProperties.lightsStateVersion !== lights.state.version ) ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.outputEncoding !== encoding ) {

    				needsProgramChange = true;

    			} else if ( object.isInstancedMesh && materialProperties.instancing === false ) {

    				needsProgramChange = true;

    			} else if ( ! object.isInstancedMesh && materialProperties.instancing === true ) {

    				needsProgramChange = true;

    			} else if ( object.isSkinnedMesh && materialProperties.skinning === false ) {

    				needsProgramChange = true;

    			} else if ( ! object.isSkinnedMesh && materialProperties.skinning === true ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.envMap !== envMap ) {

    				needsProgramChange = true;

    			} else if ( material.fog === true && materialProperties.fog !== fog ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.numClippingPlanes !== undefined &&
    				( materialProperties.numClippingPlanes !== clipping.numPlanes ||
    				materialProperties.numIntersection !== clipping.numIntersection ) ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.vertexAlphas !== vertexAlphas ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.vertexTangents !== vertexTangents ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.morphTargets !== morphTargets ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.morphNormals !== morphNormals ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.morphColors !== morphColors ) {

    				needsProgramChange = true;

    			} else if ( materialProperties.toneMapping !== toneMapping ) {

    				needsProgramChange = true;

    			} else if ( capabilities.isWebGL2 === true && materialProperties.morphTargetsCount !== morphTargetsCount ) {

    				needsProgramChange = true;

    			}

    		} else {

    			needsProgramChange = true;
    			materialProperties.__version = material.version;

    		}

    		//

    		let program = materialProperties.currentProgram;

    		if ( needsProgramChange === true ) {

    			program = getProgram( material, scene, object );

    		}

    		let refreshProgram = false;
    		let refreshMaterial = false;
    		let refreshLights = false;

    		const p_uniforms = program.getUniforms(),
    			m_uniforms = materialProperties.uniforms;

    		if ( state.useProgram( program.program ) ) {

    			refreshProgram = true;
    			refreshMaterial = true;
    			refreshLights = true;

    		}

    		if ( material.id !== _currentMaterialId ) {

    			_currentMaterialId = material.id;

    			refreshMaterial = true;

    		}

    		if ( refreshProgram || _currentCamera !== camera ) {

    			p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );

    			if ( capabilities.logarithmicDepthBuffer ) {

    				p_uniforms.setValue( _gl, 'logDepthBufFC',
    					2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );

    			}

    			if ( _currentCamera !== camera ) {

    				_currentCamera = camera;

    				// lighting uniforms depend on the camera so enforce an update
    				// now, in case this material supports lights - or later, when
    				// the next material that does gets activated:

    				refreshMaterial = true;		// set to true on material change
    				refreshLights = true;		// remains set until update done

    			}

    			// load material specific uniforms
    			// (shader material also gets them for the sake of genericity)

    			if ( material.isShaderMaterial ||
    				material.isMeshPhongMaterial ||
    				material.isMeshToonMaterial ||
    				material.isMeshStandardMaterial ||
    				material.envMap ) {

    				const uCamPos = p_uniforms.map.cameraPosition;

    				if ( uCamPos !== undefined ) {

    					uCamPos.setValue( _gl,
    						_vector3.setFromMatrixPosition( camera.matrixWorld ) );

    				}

    			}

    			if ( material.isMeshPhongMaterial ||
    				material.isMeshToonMaterial ||
    				material.isMeshLambertMaterial ||
    				material.isMeshBasicMaterial ||
    				material.isMeshStandardMaterial ||
    				material.isShaderMaterial ) {

    				p_uniforms.setValue( _gl, 'isOrthographic', camera.isOrthographicCamera === true );

    			}

    			if ( material.isMeshPhongMaterial ||
    				material.isMeshToonMaterial ||
    				material.isMeshLambertMaterial ||
    				material.isMeshBasicMaterial ||
    				material.isMeshStandardMaterial ||
    				material.isShaderMaterial ||
    				material.isShadowMaterial ||
    				object.isSkinnedMesh ) {

    				p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );

    			}

    		}

    		// skinning and morph target uniforms must be set even if material didn't change
    		// auto-setting of texture unit for bone and morph texture must go before other textures
    		// otherwise textures used for skinning and morphing can take over texture units reserved for other material textures

    		if ( object.isSkinnedMesh ) {

    			p_uniforms.setOptional( _gl, object, 'bindMatrix' );
    			p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );

    			const skeleton = object.skeleton;

    			if ( skeleton ) {

    				if ( capabilities.floatVertexTextures ) {

    					if ( skeleton.boneTexture === null ) skeleton.computeBoneTexture();

    					p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture, textures );
    					p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );

    				} else {

    					console.warn( 'THREE.WebGLRenderer: SkinnedMesh can only be used with WebGL 2. With WebGL 1 OES_texture_float and vertex textures support is required.' );

    				}

    			}

    		}

    		const morphAttributes = geometry.morphAttributes;

    		if ( morphAttributes.position !== undefined || morphAttributes.normal !== undefined || ( morphAttributes.color !== undefined && capabilities.isWebGL2 === true ) ) {

    			morphtargets.update( object, geometry, material, program );

    		}

    		if ( refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow ) {

    			materialProperties.receiveShadow = object.receiveShadow;
    			p_uniforms.setValue( _gl, 'receiveShadow', object.receiveShadow );

    		}

    		// https://github.com/mrdoob/three.js/pull/24467#issuecomment-1209031512

    		if ( material.isMeshGouraudMaterial && material.envMap !== null ) {

    			m_uniforms.envMap.value = envMap;

    			m_uniforms.flipEnvMap.value = ( envMap.isCubeTexture && envMap.isRenderTargetTexture === false ) ? - 1 : 1;

    		}

    		if ( refreshMaterial ) {

    			p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );

    			if ( materialProperties.needsLights ) {

    				// the current material requires lighting info

    				// note: all lighting uniforms are always set correctly
    				// they simply reference the renderer's state for their
    				// values
    				//
    				// use the current material's .needsUpdate flags to set
    				// the GL state when required

    				markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );

    			}

    			// refresh uniforms common to several materials

    			if ( fog && material.fog === true ) {

    				materials.refreshFogUniforms( m_uniforms, fog );

    			}

    			materials.refreshMaterialUniforms( m_uniforms, material, _pixelRatio, _height, _transmissionRenderTarget );

    			WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures );

    		}

    		if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {

    			WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures );
    			material.uniformsNeedUpdate = false;

    		}

    		if ( material.isSpriteMaterial ) {

    			p_uniforms.setValue( _gl, 'center', object.center );

    		}

    		// common matrices

    		p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
    		p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
    		p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );

    		// UBOs

    		if ( material.isShaderMaterial || material.isRawShaderMaterial ) {

    			const groups = material.uniformsGroups;

    			for ( let i = 0, l = groups.length; i < l; i ++ ) {

    				if ( capabilities.isWebGL2 ) {

    					const group = groups[ i ];

    					uniformsGroups.update( group, program );
    					uniformsGroups.bind( group, program );

    				} else {

    					console.warn( 'THREE.WebGLRenderer: Uniform Buffer Objects can only be used with WebGL 2.' );

    				}

    			}

    		}

    		return program;

    	}

    	// If uniforms are marked as clean, they don't need to be loaded to the GPU.

    	function markUniformsLightsNeedsUpdate( uniforms, value ) {

    		uniforms.ambientLightColor.needsUpdate = value;
    		uniforms.lightProbe.needsUpdate = value;

    		uniforms.directionalLights.needsUpdate = value;
    		uniforms.directionalLightShadows.needsUpdate = value;
    		uniforms.pointLights.needsUpdate = value;
    		uniforms.pointLightShadows.needsUpdate = value;
    		uniforms.spotLights.needsUpdate = value;
    		uniforms.spotLightShadows.needsUpdate = value;
    		uniforms.rectAreaLights.needsUpdate = value;
    		uniforms.hemisphereLights.needsUpdate = value;

    	}

    	function materialNeedsLights( material ) {

    		return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial ||
    			material.isMeshStandardMaterial || material.isShadowMaterial ||
    			( material.isShaderMaterial && material.lights === true );

    	}

    	this.getActiveCubeFace = function () {

    		return _currentActiveCubeFace;

    	};

    	this.getActiveMipmapLevel = function () {

    		return _currentActiveMipmapLevel;

    	};

    	this.getRenderTarget = function () {

    		return _currentRenderTarget;

    	};

    	this.setRenderTargetTextures = function ( renderTarget, colorTexture, depthTexture ) {

    		properties.get( renderTarget.texture ).__webglTexture = colorTexture;
    		properties.get( renderTarget.depthTexture ).__webglTexture = depthTexture;

    		const renderTargetProperties = properties.get( renderTarget );
    		renderTargetProperties.__hasExternalTextures = true;

    		if ( renderTargetProperties.__hasExternalTextures ) {

    			renderTargetProperties.__autoAllocateDepthBuffer = depthTexture === undefined;

    			if ( ! renderTargetProperties.__autoAllocateDepthBuffer ) {

    				// The multisample_render_to_texture extension doesn't work properly if there
    				// are midframe flushes and an external depth buffer. Disable use of the extension.
    				if ( extensions.has( 'WEBGL_multisampled_render_to_texture' ) === true ) {

    					console.warn( 'THREE.WebGLRenderer: Render-to-texture extension was disabled because an external texture was provided' );
    					renderTargetProperties.__useRenderToTexture = false;

    				}

    			}

    		}

    	};

    	this.setRenderTargetFramebuffer = function ( renderTarget, defaultFramebuffer ) {

    		const renderTargetProperties = properties.get( renderTarget );
    		renderTargetProperties.__webglFramebuffer = defaultFramebuffer;
    		renderTargetProperties.__useDefaultFramebuffer = defaultFramebuffer === undefined;

    	};

    	this.setRenderTarget = function ( renderTarget, activeCubeFace = 0, activeMipmapLevel = 0 ) {

    		_currentRenderTarget = renderTarget;
    		_currentActiveCubeFace = activeCubeFace;
    		_currentActiveMipmapLevel = activeMipmapLevel;

    		let useDefaultFramebuffer = true;

    		if ( renderTarget ) {

    			const renderTargetProperties = properties.get( renderTarget );

    			if ( renderTargetProperties.__useDefaultFramebuffer !== undefined ) {

    				// We need to make sure to rebind the framebuffer.
    				state.bindFramebuffer( 36160, null );
    				useDefaultFramebuffer = false;

    			} else if ( renderTargetProperties.__webglFramebuffer === undefined ) {

    				textures.setupRenderTarget( renderTarget );

    			} else if ( renderTargetProperties.__hasExternalTextures ) {

    				// Color and depth texture must be rebound in order for the swapchain to update.
    				textures.rebindTextures( renderTarget, properties.get( renderTarget.texture ).__webglTexture, properties.get( renderTarget.depthTexture ).__webglTexture );

    			}

    		}

    		let framebuffer = null;
    		let isCube = false;
    		let isRenderTarget3D = false;

    		if ( renderTarget ) {

    			const texture = renderTarget.texture;

    			if ( texture.isData3DTexture || texture.isDataArrayTexture ) {

    				isRenderTarget3D = true;

    			}

    			const __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;

    			if ( renderTarget.isWebGLCubeRenderTarget ) {

    				framebuffer = __webglFramebuffer[ activeCubeFace ];
    				isCube = true;

    			} else if ( ( capabilities.isWebGL2 && renderTarget.samples > 0 ) && textures.useMultisampledRTT( renderTarget ) === false ) {

    				framebuffer = properties.get( renderTarget ).__webglMultisampledFramebuffer;

    			} else {

    				framebuffer = __webglFramebuffer;

    			}

    			_currentViewport.copy( renderTarget.viewport );
    			_currentScissor.copy( renderTarget.scissor );
    			_currentScissorTest = renderTarget.scissorTest;

    		} else {

    			_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor();
    			_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor();
    			_currentScissorTest = _scissorTest;

    		}

    		const framebufferBound = state.bindFramebuffer( 36160, framebuffer );

    		if ( framebufferBound && capabilities.drawBuffers && useDefaultFramebuffer ) {

    			state.drawBuffers( renderTarget, framebuffer );

    		}

    		state.viewport( _currentViewport );
    		state.scissor( _currentScissor );
    		state.setScissorTest( _currentScissorTest );

    		if ( isCube ) {

    			const textureProperties = properties.get( renderTarget.texture );
    			_gl.framebufferTexture2D( 36160, 36064, 34069 + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel );

    		} else if ( isRenderTarget3D ) {

    			const textureProperties = properties.get( renderTarget.texture );
    			const layer = activeCubeFace || 0;
    			_gl.framebufferTextureLayer( 36160, 36064, textureProperties.__webglTexture, activeMipmapLevel || 0, layer );

    		}

    		_currentMaterialId = - 1; // reset current material to ensure correct uniform bindings

    	};

    	this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer, activeCubeFaceIndex ) {

    		if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {

    			console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
    			return;

    		}

    		let framebuffer = properties.get( renderTarget ).__webglFramebuffer;

    		if ( renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined ) {

    			framebuffer = framebuffer[ activeCubeFaceIndex ];

    		}

    		if ( framebuffer ) {

    			state.bindFramebuffer( 36160, framebuffer );

    			try {

    				const texture = renderTarget.texture;
    				const textureFormat = texture.format;
    				const textureType = texture.type;

    				if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( 35739 ) ) {

    					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
    					return;

    				}

    				const halfFloatSupportedByExt = ( textureType === HalfFloatType ) && ( extensions.has( 'EXT_color_buffer_half_float' ) || ( capabilities.isWebGL2 && extensions.has( 'EXT_color_buffer_float' ) ) );

    				if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( 35738 ) && // Edge and Chrome Mac < 52 (#9513)
    					! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.has( 'OES_texture_float' ) || extensions.has( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox
    					! halfFloatSupportedByExt ) {

    					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
    					return;

    				}

    				// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)

    				if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {

    					_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );

    				}

    			} finally {

    				// restore framebuffer of current render target if necessary

    				const framebuffer = ( _currentRenderTarget !== null ) ? properties.get( _currentRenderTarget ).__webglFramebuffer : null;
    				state.bindFramebuffer( 36160, framebuffer );

    			}

    		}

    	};

    	this.copyFramebufferToTexture = function ( position, texture, level = 0 ) {

    		const levelScale = Math.pow( 2, - level );
    		const width = Math.floor( texture.image.width * levelScale );
    		const height = Math.floor( texture.image.height * levelScale );

    		textures.setTexture2D( texture, 0 );

    		_gl.copyTexSubImage2D( 3553, level, 0, 0, position.x, position.y, width, height );

    		state.unbindTexture();

    	};

    	this.copyTextureToTexture = function ( position, srcTexture, dstTexture, level = 0 ) {

    		const width = srcTexture.image.width;
    		const height = srcTexture.image.height;
    		const glFormat = utils.convert( dstTexture.format );
    		const glType = utils.convert( dstTexture.type );

    		textures.setTexture2D( dstTexture, 0 );

    		// As another texture upload may have changed pixelStorei
    		// parameters, make sure they are correct for the dstTexture
    		_gl.pixelStorei( 37440, dstTexture.flipY );
    		_gl.pixelStorei( 37441, dstTexture.premultiplyAlpha );
    		_gl.pixelStorei( 3317, dstTexture.unpackAlignment );

    		if ( srcTexture.isDataTexture ) {

    			_gl.texSubImage2D( 3553, level, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data );

    		} else {

    			if ( srcTexture.isCompressedTexture ) {

    				_gl.compressedTexSubImage2D( 3553, level, position.x, position.y, srcTexture.mipmaps[ 0 ].width, srcTexture.mipmaps[ 0 ].height, glFormat, srcTexture.mipmaps[ 0 ].data );

    			} else {

    				_gl.texSubImage2D( 3553, level, position.x, position.y, glFormat, glType, srcTexture.image );

    			}

    		}

    		// Generate mipmaps only when copying level 0
    		if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( 3553 );

    		state.unbindTexture();

    	};

    	this.copyTextureToTexture3D = function ( sourceBox, position, srcTexture, dstTexture, level = 0 ) {

    		if ( _this.isWebGL1Renderer ) {

    			console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.' );
    			return;

    		}

    		const width = sourceBox.max.x - sourceBox.min.x + 1;
    		const height = sourceBox.max.y - sourceBox.min.y + 1;
    		const depth = sourceBox.max.z - sourceBox.min.z + 1;
    		const glFormat = utils.convert( dstTexture.format );
    		const glType = utils.convert( dstTexture.type );
    		let glTarget;

    		if ( dstTexture.isData3DTexture ) {

    			textures.setTexture3D( dstTexture, 0 );
    			glTarget = 32879;

    		} else if ( dstTexture.isDataArrayTexture ) {

    			textures.setTexture2DArray( dstTexture, 0 );
    			glTarget = 35866;

    		} else {

    			console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.' );
    			return;

    		}

    		_gl.pixelStorei( 37440, dstTexture.flipY );
    		_gl.pixelStorei( 37441, dstTexture.premultiplyAlpha );
    		_gl.pixelStorei( 3317, dstTexture.unpackAlignment );

    		const unpackRowLen = _gl.getParameter( 3314 );
    		const unpackImageHeight = _gl.getParameter( 32878 );
    		const unpackSkipPixels = _gl.getParameter( 3316 );
    		const unpackSkipRows = _gl.getParameter( 3315 );
    		const unpackSkipImages = _gl.getParameter( 32877 );

    		const image = srcTexture.isCompressedTexture ? srcTexture.mipmaps[ 0 ] : srcTexture.image;

    		_gl.pixelStorei( 3314, image.width );
    		_gl.pixelStorei( 32878, image.height );
    		_gl.pixelStorei( 3316, sourceBox.min.x );
    		_gl.pixelStorei( 3315, sourceBox.min.y );
    		_gl.pixelStorei( 32877, sourceBox.min.z );

    		if ( srcTexture.isDataTexture || srcTexture.isData3DTexture ) {

    			_gl.texSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, glType, image.data );

    		} else {

    			if ( srcTexture.isCompressedTexture ) {

    				console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: untested support for compressed srcTexture.' );
    				_gl.compressedTexSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, image.data );

    			} else {

    				_gl.texSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, glType, image );

    			}

    		}

    		_gl.pixelStorei( 3314, unpackRowLen );
    		_gl.pixelStorei( 32878, unpackImageHeight );
    		_gl.pixelStorei( 3316, unpackSkipPixels );
    		_gl.pixelStorei( 3315, unpackSkipRows );
    		_gl.pixelStorei( 32877, unpackSkipImages );

    		// Generate mipmaps only when copying level 0
    		if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( glTarget );

    		state.unbindTexture();

    	};

    	this.initTexture = function ( texture ) {

    		if ( texture.isCubeTexture ) {

    			textures.setTextureCube( texture, 0 );

    		} else if ( texture.isData3DTexture ) {

    			textures.setTexture3D( texture, 0 );

    		} else if ( texture.isDataArrayTexture ) {

    			textures.setTexture2DArray( texture, 0 );

    		} else {

    			textures.setTexture2D( texture, 0 );

    		}

    		state.unbindTexture();

    	};

    	this.resetState = function () {

    		_currentActiveCubeFace = 0;
    		_currentActiveMipmapLevel = 0;
    		_currentRenderTarget = null;

    		state.reset();
    		bindingStates.reset();

    	};

    	if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) {

    		__THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) );

    	}

    }

    class WebGL1Renderer extends WebGLRenderer {}

    WebGL1Renderer.prototype.isWebGL1Renderer = true;

    class FogExp2 {

    	constructor( color, density = 0.00025 ) {

    		this.isFogExp2 = true;

    		this.name = '';

    		this.color = new Color( color );
    		this.density = density;

    	}

    	clone() {

    		return new FogExp2( this.color, this.density );

    	}

    	toJSON( /* meta */ ) {

    		return {
    			type: 'FogExp2',
    			color: this.color.getHex(),
    			density: this.density
    		};

    	}

    }

    class Fog {

    	constructor( color, near = 1, far = 1000 ) {

    		this.isFog = true;

    		this.name = '';

    		this.color = new Color( color );

    		this.near = near;
    		this.far = far;

    	}

    	clone() {

    		return new Fog( this.color, this.near, this.far );

    	}

    	toJSON( /* meta */ ) {

    		return {
    			type: 'Fog',
    			color: this.color.getHex(),
    			near: this.near,
    			far: this.far
    		};

    	}

    }

    class Scene extends Object3D {

    	constructor() {

    		super();

    		this.isScene = true;

    		this.type = 'Scene';

    		this.background = null;
    		this.environment = null;
    		this.fog = null;

    		this.overrideMaterial = null;

    		if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) {

    			__THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) );

    		}

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		if ( source.background !== null ) this.background = source.background.clone();
    		if ( source.environment !== null ) this.environment = source.environment.clone();
    		if ( source.fog !== null ) this.fog = source.fog.clone();

    		if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();

    		this.matrixAutoUpdate = source.matrixAutoUpdate;

    		return this;

    	}

    	toJSON( meta ) {

    		const data = super.toJSON( meta );

    		if ( this.fog !== null ) data.object.fog = this.fog.toJSON();

    		return data;

    	}

    	// @deprecated

    	get autoUpdate() {

    		console.warn( 'THREE.Scene: autoUpdate was renamed to matrixWorldAutoUpdate in r144.' );
    		return this.matrixWorldAutoUpdate;

    	}

    	set autoUpdate( value ) {

    		console.warn( 'THREE.Scene: autoUpdate was renamed to matrixWorldAutoUpdate in r144.' );
    		this.matrixWorldAutoUpdate = value;

    	}

    }

    class InterleavedBuffer {

    	constructor( array, stride ) {

    		this.isInterleavedBuffer = true;

    		this.array = array;
    		this.stride = stride;
    		this.count = array !== undefined ? array.length / stride : 0;

    		this.usage = StaticDrawUsage;
    		this.updateRange = { offset: 0, count: - 1 };

    		this.version = 0;

    		this.uuid = generateUUID();

    	}

    	onUploadCallback() {}

    	set needsUpdate( value ) {

    		if ( value === true ) this.version ++;

    	}

    	setUsage( value ) {

    		this.usage = value;

    		return this;

    	}

    	copy( source ) {

    		this.array = new source.array.constructor( source.array );
    		this.count = source.count;
    		this.stride = source.stride;
    		this.usage = source.usage;

    		return this;

    	}

    	copyAt( index1, attribute, index2 ) {

    		index1 *= this.stride;
    		index2 *= attribute.stride;

    		for ( let i = 0, l = this.stride; i < l; i ++ ) {

    			this.array[ index1 + i ] = attribute.array[ index2 + i ];

    		}

    		return this;

    	}

    	set( value, offset = 0 ) {

    		this.array.set( value, offset );

    		return this;

    	}

    	clone( data ) {

    		if ( data.arrayBuffers === undefined ) {

    			data.arrayBuffers = {};

    		}

    		if ( this.array.buffer._uuid === undefined ) {

    			this.array.buffer._uuid = generateUUID();

    		}

    		if ( data.arrayBuffers[ this.array.buffer._uuid ] === undefined ) {

    			data.arrayBuffers[ this.array.buffer._uuid ] = this.array.slice( 0 ).buffer;

    		}

    		const array = new this.array.constructor( data.arrayBuffers[ this.array.buffer._uuid ] );

    		const ib = new this.constructor( array, this.stride );
    		ib.setUsage( this.usage );

    		return ib;

    	}

    	onUpload( callback ) {

    		this.onUploadCallback = callback;

    		return this;

    	}

    	toJSON( data ) {

    		if ( data.arrayBuffers === undefined ) {

    			data.arrayBuffers = {};

    		}

    		// generate UUID for array buffer if necessary

    		if ( this.array.buffer._uuid === undefined ) {

    			this.array.buffer._uuid = generateUUID();

    		}

    		if ( data.arrayBuffers[ this.array.buffer._uuid ] === undefined ) {

    			data.arrayBuffers[ this.array.buffer._uuid ] = Array.from( new Uint32Array( this.array.buffer ) );

    		}

    		//

    		return {
    			uuid: this.uuid,
    			buffer: this.array.buffer._uuid,
    			type: this.array.constructor.name,
    			stride: this.stride
    		};

    	}

    }

    const _vector$6 = /*@__PURE__*/ new Vector3();

    class InterleavedBufferAttribute {

    	constructor( interleavedBuffer, itemSize, offset, normalized = false ) {

    		this.isInterleavedBufferAttribute = true;

    		this.name = '';

    		this.data = interleavedBuffer;
    		this.itemSize = itemSize;
    		this.offset = offset;

    		this.normalized = normalized === true;

    	}

    	get count() {

    		return this.data.count;

    	}

    	get array() {

    		return this.data.array;

    	}

    	set needsUpdate( value ) {

    		this.data.needsUpdate = value;

    	}

    	applyMatrix4( m ) {

    		for ( let i = 0, l = this.data.count; i < l; i ++ ) {

    			_vector$6.fromBufferAttribute( this, i );

    			_vector$6.applyMatrix4( m );

    			this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z );

    		}

    		return this;

    	}

    	applyNormalMatrix( m ) {

    		for ( let i = 0, l = this.count; i < l; i ++ ) {

    			_vector$6.fromBufferAttribute( this, i );

    			_vector$6.applyNormalMatrix( m );

    			this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z );

    		}

    		return this;

    	}

    	transformDirection( m ) {

    		for ( let i = 0, l = this.count; i < l; i ++ ) {

    			_vector$6.fromBufferAttribute( this, i );

    			_vector$6.transformDirection( m );

    			this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z );

    		}

    		return this;

    	}

    	setX( index, x ) {

    		if ( this.normalized ) x = normalize( x, this.array );

    		this.data.array[ index * this.data.stride + this.offset ] = x;

    		return this;

    	}

    	setY( index, y ) {

    		if ( this.normalized ) y = normalize( y, this.array );

    		this.data.array[ index * this.data.stride + this.offset + 1 ] = y;

    		return this;

    	}

    	setZ( index, z ) {

    		if ( this.normalized ) z = normalize( z, this.array );

    		this.data.array[ index * this.data.stride + this.offset + 2 ] = z;

    		return this;

    	}

    	setW( index, w ) {

    		if ( this.normalized ) w = normalize( w, this.array );

    		this.data.array[ index * this.data.stride + this.offset + 3 ] = w;

    		return this;

    	}

    	getX( index ) {

    		let x = this.data.array[ index * this.data.stride + this.offset ];

    		if ( this.normalized ) x = denormalize( x, this.array );

    		return x;

    	}

    	getY( index ) {

    		let y = this.data.array[ index * this.data.stride + this.offset + 1 ];

    		if ( this.normalized ) y = denormalize( y, this.array );

    		return y;

    	}

    	getZ( index ) {

    		let z = this.data.array[ index * this.data.stride + this.offset + 2 ];

    		if ( this.normalized ) z = denormalize( z, this.array );

    		return z;

    	}

    	getW( index ) {

    		let w = this.data.array[ index * this.data.stride + this.offset + 3 ];

    		if ( this.normalized ) w = denormalize( w, this.array );

    		return w;

    	}

    	setXY( index, x, y ) {

    		index = index * this.data.stride + this.offset;

    		if ( this.normalized ) {

    			x = normalize( x, this.array );
    			y = normalize( y, this.array );

    		}

    		this.data.array[ index + 0 ] = x;
    		this.data.array[ index + 1 ] = y;

    		return this;

    	}

    	setXYZ( index, x, y, z ) {

    		index = index * this.data.stride + this.offset;

    		if ( this.normalized ) {

    			x = normalize( x, this.array );
    			y = normalize( y, this.array );
    			z = normalize( z, this.array );

    		}

    		this.data.array[ index + 0 ] = x;
    		this.data.array[ index + 1 ] = y;
    		this.data.array[ index + 2 ] = z;

    		return this;

    	}

    	setXYZW( index, x, y, z, w ) {

    		index = index * this.data.stride + this.offset;

    		if ( this.normalized ) {

    			x = normalize( x, this.array );
    			y = normalize( y, this.array );
    			z = normalize( z, this.array );
    			w = normalize( w, this.array );

    		}

    		this.data.array[ index + 0 ] = x;
    		this.data.array[ index + 1 ] = y;
    		this.data.array[ index + 2 ] = z;
    		this.data.array[ index + 3 ] = w;

    		return this;

    	}

    	clone( data ) {

    		if ( data === undefined ) {

    			console.log( 'THREE.InterleavedBufferAttribute.clone(): Cloning an interleaved buffer attribute will deinterleave buffer data.' );

    			const array = [];

    			for ( let i = 0; i < this.count; i ++ ) {

    				const index = i * this.data.stride + this.offset;

    				for ( let j = 0; j < this.itemSize; j ++ ) {

    					array.push( this.data.array[ index + j ] );

    				}

    			}

    			return new BufferAttribute( new this.array.constructor( array ), this.itemSize, this.normalized );

    		} else {

    			if ( data.interleavedBuffers === undefined ) {

    				data.interleavedBuffers = {};

    			}

    			if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) {

    				data.interleavedBuffers[ this.data.uuid ] = this.data.clone( data );

    			}

    			return new InterleavedBufferAttribute( data.interleavedBuffers[ this.data.uuid ], this.itemSize, this.offset, this.normalized );

    		}

    	}

    	toJSON( data ) {

    		if ( data === undefined ) {

    			console.log( 'THREE.InterleavedBufferAttribute.toJSON(): Serializing an interleaved buffer attribute will deinterleave buffer data.' );

    			const array = [];

    			for ( let i = 0; i < this.count; i ++ ) {

    				const index = i * this.data.stride + this.offset;

    				for ( let j = 0; j < this.itemSize; j ++ ) {

    					array.push( this.data.array[ index + j ] );

    				}

    			}

    			// deinterleave data and save it as an ordinary buffer attribute for now

    			return {
    				itemSize: this.itemSize,
    				type: this.array.constructor.name,
    				array: array,
    				normalized: this.normalized
    			};

    		} else {

    			// save as true interleaved attribtue

    			if ( data.interleavedBuffers === undefined ) {

    				data.interleavedBuffers = {};

    			}

    			if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) {

    				data.interleavedBuffers[ this.data.uuid ] = this.data.toJSON( data );

    			}

    			return {
    				isInterleavedBufferAttribute: true,
    				itemSize: this.itemSize,
    				data: this.data.uuid,
    				offset: this.offset,
    				normalized: this.normalized
    			};

    		}

    	}

    }

    class SpriteMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isSpriteMaterial = true;

    		this.type = 'SpriteMaterial';

    		this.color = new Color( 0xffffff );

    		this.map = null;

    		this.alphaMap = null;

    		this.rotation = 0;

    		this.sizeAttenuation = true;

    		this.transparent = true;

    		this.fog = true;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.color.copy( source.color );

    		this.map = source.map;

    		this.alphaMap = source.alphaMap;

    		this.rotation = source.rotation;

    		this.sizeAttenuation = source.sizeAttenuation;

    		this.fog = source.fog;

    		return this;

    	}

    }

    let _geometry;

    const _intersectPoint = /*@__PURE__*/ new Vector3();
    const _worldScale = /*@__PURE__*/ new Vector3();
    const _mvPosition = /*@__PURE__*/ new Vector3();

    const _alignedPosition = /*@__PURE__*/ new Vector2();
    const _rotatedPosition = /*@__PURE__*/ new Vector2();
    const _viewWorldMatrix = /*@__PURE__*/ new Matrix4();

    const _vA = /*@__PURE__*/ new Vector3();
    const _vB = /*@__PURE__*/ new Vector3();
    const _vC = /*@__PURE__*/ new Vector3();

    const _uvA = /*@__PURE__*/ new Vector2();
    const _uvB = /*@__PURE__*/ new Vector2();
    const _uvC = /*@__PURE__*/ new Vector2();

    class Sprite extends Object3D {

    	constructor( material ) {

    		super();

    		this.isSprite = true;

    		this.type = 'Sprite';

    		if ( _geometry === undefined ) {

    			_geometry = new BufferGeometry();

    			const float32Array = new Float32Array( [
    				- 0.5, - 0.5, 0, 0, 0,
    				0.5, - 0.5, 0, 1, 0,
    				0.5, 0.5, 0, 1, 1,
    				- 0.5, 0.5, 0, 0, 1
    			] );

    			const interleavedBuffer = new InterleavedBuffer( float32Array, 5 );

    			_geometry.setIndex( [ 0, 1, 2,	0, 2, 3 ] );
    			_geometry.setAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) );
    			_geometry.setAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) );

    		}

    		this.geometry = _geometry;
    		this.material = ( material !== undefined ) ? material : new SpriteMaterial();

    		this.center = new Vector2( 0.5, 0.5 );

    	}

    	raycast( raycaster, intersects ) {

    		if ( raycaster.camera === null ) {

    			console.error( 'THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.' );

    		}

    		_worldScale.setFromMatrixScale( this.matrixWorld );

    		_viewWorldMatrix.copy( raycaster.camera.matrixWorld );
    		this.modelViewMatrix.multiplyMatrices( raycaster.camera.matrixWorldInverse, this.matrixWorld );

    		_mvPosition.setFromMatrixPosition( this.modelViewMatrix );

    		if ( raycaster.camera.isPerspectiveCamera && this.material.sizeAttenuation === false ) {

    			_worldScale.multiplyScalar( - _mvPosition.z );

    		}

    		const rotation = this.material.rotation;
    		let sin, cos;

    		if ( rotation !== 0 ) {

    			cos = Math.cos( rotation );
    			sin = Math.sin( rotation );

    		}

    		const center = this.center;

    		transformVertex( _vA.set( - 0.5, - 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos );
    		transformVertex( _vB.set( 0.5, - 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos );
    		transformVertex( _vC.set( 0.5, 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos );

    		_uvA.set( 0, 0 );
    		_uvB.set( 1, 0 );
    		_uvC.set( 1, 1 );

    		// check first triangle
    		let intersect = raycaster.ray.intersectTriangle( _vA, _vB, _vC, false, _intersectPoint );

    		if ( intersect === null ) {

    			// check second triangle
    			transformVertex( _vB.set( - 0.5, 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos );
    			_uvB.set( 0, 1 );

    			intersect = raycaster.ray.intersectTriangle( _vA, _vC, _vB, false, _intersectPoint );
    			if ( intersect === null ) {

    				return;

    			}

    		}

    		const distance = raycaster.ray.origin.distanceTo( _intersectPoint );

    		if ( distance < raycaster.near || distance > raycaster.far ) return;

    		intersects.push( {

    			distance: distance,
    			point: _intersectPoint.clone(),
    			uv: Triangle.getUV( _intersectPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2() ),
    			face: null,
    			object: this

    		} );

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		if ( source.center !== undefined ) this.center.copy( source.center );

    		this.material = source.material;

    		return this;

    	}

    }

    function transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) {

    	// compute position in camera space
    	_alignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale );

    	// to check if rotation is not zero
    	if ( sin !== undefined ) {

    		_rotatedPosition.x = ( cos * _alignedPosition.x ) - ( sin * _alignedPosition.y );
    		_rotatedPosition.y = ( sin * _alignedPosition.x ) + ( cos * _alignedPosition.y );

    	} else {

    		_rotatedPosition.copy( _alignedPosition );

    	}


    	vertexPosition.copy( mvPosition );
    	vertexPosition.x += _rotatedPosition.x;
    	vertexPosition.y += _rotatedPosition.y;

    	// transform to world space
    	vertexPosition.applyMatrix4( _viewWorldMatrix );

    }

    const _v1$2 = /*@__PURE__*/ new Vector3();
    const _v2$1 = /*@__PURE__*/ new Vector3();

    class LOD extends Object3D {

    	constructor() {

    		super();

    		this._currentLevel = 0;

    		this.type = 'LOD';

    		Object.defineProperties( this, {
    			levels: {
    				enumerable: true,
    				value: []
    			},
    			isLOD: {
    				value: true,
    			}
    		} );

    		this.autoUpdate = true;

    	}

    	copy( source ) {

    		super.copy( source, false );

    		const levels = source.levels;

    		for ( let i = 0, l = levels.length; i < l; i ++ ) {

    			const level = levels[ i ];

    			this.addLevel( level.object.clone(), level.distance );

    		}

    		this.autoUpdate = source.autoUpdate;

    		return this;

    	}

    	addLevel( object, distance = 0 ) {

    		distance = Math.abs( distance );

    		const levels = this.levels;

    		let l;

    		for ( l = 0; l < levels.length; l ++ ) {

    			if ( distance < levels[ l ].distance ) {

    				break;

    			}

    		}

    		levels.splice( l, 0, { distance: distance, object: object } );

    		this.add( object );

    		return this;

    	}

    	getCurrentLevel() {

    		return this._currentLevel;

    	}

    	getObjectForDistance( distance ) {

    		const levels = this.levels;

    		if ( levels.length > 0 ) {

    			let i, l;

    			for ( i = 1, l = levels.length; i < l; i ++ ) {

    				if ( distance < levels[ i ].distance ) {

    					break;

    				}

    			}

    			return levels[ i - 1 ].object;

    		}

    		return null;

    	}

    	raycast( raycaster, intersects ) {

    		const levels = this.levels;

    		if ( levels.length > 0 ) {

    			_v1$2.setFromMatrixPosition( this.matrixWorld );

    			const distance = raycaster.ray.origin.distanceTo( _v1$2 );

    			this.getObjectForDistance( distance ).raycast( raycaster, intersects );

    		}

    	}

    	update( camera ) {

    		const levels = this.levels;

    		if ( levels.length > 1 ) {

    			_v1$2.setFromMatrixPosition( camera.matrixWorld );
    			_v2$1.setFromMatrixPosition( this.matrixWorld );

    			const distance = _v1$2.distanceTo( _v2$1 ) / camera.zoom;

    			levels[ 0 ].object.visible = true;

    			let i, l;

    			for ( i = 1, l = levels.length; i < l; i ++ ) {

    				if ( distance >= levels[ i ].distance ) {

    					levels[ i - 1 ].object.visible = false;
    					levels[ i ].object.visible = true;

    				} else {

    					break;

    				}

    			}

    			this._currentLevel = i - 1;

    			for ( ; i < l; i ++ ) {

    				levels[ i ].object.visible = false;

    			}

    		}

    	}

    	toJSON( meta ) {

    		const data = super.toJSON( meta );

    		if ( this.autoUpdate === false ) data.object.autoUpdate = false;

    		data.object.levels = [];

    		const levels = this.levels;

    		for ( let i = 0, l = levels.length; i < l; i ++ ) {

    			const level = levels[ i ];

    			data.object.levels.push( {
    				object: level.object.uuid,
    				distance: level.distance
    			} );

    		}

    		return data;

    	}

    }

    const _basePosition = /*@__PURE__*/ new Vector3();

    const _skinIndex = /*@__PURE__*/ new Vector4();
    const _skinWeight = /*@__PURE__*/ new Vector4();

    const _vector$5 = /*@__PURE__*/ new Vector3();
    const _matrix = /*@__PURE__*/ new Matrix4();

    class SkinnedMesh extends Mesh {

    	constructor( geometry, material ) {

    		super( geometry, material );

    		this.isSkinnedMesh = true;

    		this.type = 'SkinnedMesh';

    		this.bindMode = 'attached';
    		this.bindMatrix = new Matrix4();
    		this.bindMatrixInverse = new Matrix4();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.bindMode = source.bindMode;
    		this.bindMatrix.copy( source.bindMatrix );
    		this.bindMatrixInverse.copy( source.bindMatrixInverse );

    		this.skeleton = source.skeleton;

    		return this;

    	}

    	bind( skeleton, bindMatrix ) {

    		this.skeleton = skeleton;

    		if ( bindMatrix === undefined ) {

    			this.updateMatrixWorld( true );

    			this.skeleton.calculateInverses();

    			bindMatrix = this.matrixWorld;

    		}

    		this.bindMatrix.copy( bindMatrix );
    		this.bindMatrixInverse.copy( bindMatrix ).invert();

    	}

    	pose() {

    		this.skeleton.pose();

    	}

    	normalizeSkinWeights() {

    		const vector = new Vector4();

    		const skinWeight = this.geometry.attributes.skinWeight;

    		for ( let i = 0, l = skinWeight.count; i < l; i ++ ) {

    			vector.fromBufferAttribute( skinWeight, i );

    			const scale = 1.0 / vector.manhattanLength();

    			if ( scale !== Infinity ) {

    				vector.multiplyScalar( scale );

    			} else {

    				vector.set( 1, 0, 0, 0 ); // do something reasonable

    			}

    			skinWeight.setXYZW( i, vector.x, vector.y, vector.z, vector.w );

    		}

    	}

    	updateMatrixWorld( force ) {

    		super.updateMatrixWorld( force );

    		if ( this.bindMode === 'attached' ) {

    			this.bindMatrixInverse.copy( this.matrixWorld ).invert();

    		} else if ( this.bindMode === 'detached' ) {

    			this.bindMatrixInverse.copy( this.bindMatrix ).invert();

    		} else {

    			console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );

    		}

    	}

    	boneTransform( index, target ) {

    		const skeleton = this.skeleton;
    		const geometry = this.geometry;

    		_skinIndex.fromBufferAttribute( geometry.attributes.skinIndex, index );
    		_skinWeight.fromBufferAttribute( geometry.attributes.skinWeight, index );

    		_basePosition.copy( target ).applyMatrix4( this.bindMatrix );

    		target.set( 0, 0, 0 );

    		for ( let i = 0; i < 4; i ++ ) {

    			const weight = _skinWeight.getComponent( i );

    			if ( weight !== 0 ) {

    				const boneIndex = _skinIndex.getComponent( i );

    				_matrix.multiplyMatrices( skeleton.bones[ boneIndex ].matrixWorld, skeleton.boneInverses[ boneIndex ] );

    				target.addScaledVector( _vector$5.copy( _basePosition ).applyMatrix4( _matrix ), weight );

    			}

    		}

    		return target.applyMatrix4( this.bindMatrixInverse );

    	}

    }

    class Bone extends Object3D {

    	constructor() {

    		super();

    		this.isBone = true;

    		this.type = 'Bone';

    	}

    }

    class DataTexture extends Texture {

    	constructor( data = null, width = 1, height = 1, format, type, mapping, wrapS, wrapT, magFilter = NearestFilter, minFilter = NearestFilter, anisotropy, encoding ) {

    		super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

    		this.isDataTexture = true;

    		this.image = { data: data, width: width, height: height };

    		this.generateMipmaps = false;
    		this.flipY = false;
    		this.unpackAlignment = 1;

    	}

    }

    const _offsetMatrix = /*@__PURE__*/ new Matrix4();
    const _identityMatrix = /*@__PURE__*/ new Matrix4();

    class Skeleton {

    	constructor( bones = [], boneInverses = [] ) {

    		this.uuid = generateUUID();

    		this.bones = bones.slice( 0 );
    		this.boneInverses = boneInverses;
    		this.boneMatrices = null;

    		this.boneTexture = null;
    		this.boneTextureSize = 0;

    		this.frame = - 1;

    		this.init();

    	}

    	init() {

    		const bones = this.bones;
    		const boneInverses = this.boneInverses;

    		this.boneMatrices = new Float32Array( bones.length * 16 );

    		// calculate inverse bone matrices if necessary

    		if ( boneInverses.length === 0 ) {

    			this.calculateInverses();

    		} else {

    			// handle special case

    			if ( bones.length !== boneInverses.length ) {

    				console.warn( 'THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.' );

    				this.boneInverses = [];

    				for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

    					this.boneInverses.push( new Matrix4() );

    				}

    			}

    		}

    	}

    	calculateInverses() {

    		this.boneInverses.length = 0;

    		for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

    			const inverse = new Matrix4();

    			if ( this.bones[ i ] ) {

    				inverse.copy( this.bones[ i ].matrixWorld ).invert();

    			}

    			this.boneInverses.push( inverse );

    		}

    	}

    	pose() {

    		// recover the bind-time world matrices

    		for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

    			const bone = this.bones[ i ];

    			if ( bone ) {

    				bone.matrixWorld.copy( this.boneInverses[ i ] ).invert();

    			}

    		}

    		// compute the local matrices, positions, rotations and scales

    		for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

    			const bone = this.bones[ i ];

    			if ( bone ) {

    				if ( bone.parent && bone.parent.isBone ) {

    					bone.matrix.copy( bone.parent.matrixWorld ).invert();
    					bone.matrix.multiply( bone.matrixWorld );

    				} else {

    					bone.matrix.copy( bone.matrixWorld );

    				}

    				bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );

    			}

    		}

    	}

    	update() {

    		const bones = this.bones;
    		const boneInverses = this.boneInverses;
    		const boneMatrices = this.boneMatrices;
    		const boneTexture = this.boneTexture;

    		// flatten bone matrices to array

    		for ( let i = 0, il = bones.length; i < il; i ++ ) {

    			// compute the offset between the current and the original transform

    			const matrix = bones[ i ] ? bones[ i ].matrixWorld : _identityMatrix;

    			_offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );
    			_offsetMatrix.toArray( boneMatrices, i * 16 );

    		}

    		if ( boneTexture !== null ) {

    			boneTexture.needsUpdate = true;

    		}

    	}

    	clone() {

    		return new Skeleton( this.bones, this.boneInverses );

    	}

    	computeBoneTexture() {

    		// layout (1 matrix = 4 pixels)
    		//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
    		//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
    		//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
    		//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
    		//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)

    		let size = Math.sqrt( this.bones.length * 4 ); // 4 pixels needed for 1 matrix
    		size = ceilPowerOfTwo( size );
    		size = Math.max( size, 4 );

    		const boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel
    		boneMatrices.set( this.boneMatrices ); // copy current values

    		const boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );
    		boneTexture.needsUpdate = true;

    		this.boneMatrices = boneMatrices;
    		this.boneTexture = boneTexture;
    		this.boneTextureSize = size;

    		return this;

    	}

    	getBoneByName( name ) {

    		for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

    			const bone = this.bones[ i ];

    			if ( bone.name === name ) {

    				return bone;

    			}

    		}

    		return undefined;

    	}

    	dispose( ) {

    		if ( this.boneTexture !== null ) {

    			this.boneTexture.dispose();

    			this.boneTexture = null;

    		}

    	}

    	fromJSON( json, bones ) {

    		this.uuid = json.uuid;

    		for ( let i = 0, l = json.bones.length; i < l; i ++ ) {

    			const uuid = json.bones[ i ];
    			let bone = bones[ uuid ];

    			if ( bone === undefined ) {

    				console.warn( 'THREE.Skeleton: No bone found with UUID:', uuid );
    				bone = new Bone();

    			}

    			this.bones.push( bone );
    			this.boneInverses.push( new Matrix4().fromArray( json.boneInverses[ i ] ) );

    		}

    		this.init();

    		return this;

    	}

    	toJSON() {

    		const data = {
    			metadata: {
    				version: 4.5,
    				type: 'Skeleton',
    				generator: 'Skeleton.toJSON'
    			},
    			bones: [],
    			boneInverses: []
    		};

    		data.uuid = this.uuid;

    		const bones = this.bones;
    		const boneInverses = this.boneInverses;

    		for ( let i = 0, l = bones.length; i < l; i ++ ) {

    			const bone = bones[ i ];
    			data.bones.push( bone.uuid );

    			const boneInverse = boneInverses[ i ];
    			data.boneInverses.push( boneInverse.toArray() );

    		}

    		return data;

    	}

    }

    class InstancedBufferAttribute extends BufferAttribute {

    	constructor( array, itemSize, normalized, meshPerAttribute = 1 ) {

    		super( array, itemSize, normalized );

    		this.isInstancedBufferAttribute = true;

    		this.meshPerAttribute = meshPerAttribute;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.meshPerAttribute = source.meshPerAttribute;

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.meshPerAttribute = this.meshPerAttribute;

    		data.isInstancedBufferAttribute = true;

    		return data;

    	}

    }

    const _instanceLocalMatrix = /*@__PURE__*/ new Matrix4();
    const _instanceWorldMatrix = /*@__PURE__*/ new Matrix4();

    const _instanceIntersects = [];

    const _mesh = /*@__PURE__*/ new Mesh();

    class InstancedMesh extends Mesh {

    	constructor( geometry, material, count ) {

    		super( geometry, material );

    		this.isInstancedMesh = true;

    		this.instanceMatrix = new InstancedBufferAttribute( new Float32Array( count * 16 ), 16 );
    		this.instanceColor = null;

    		this.count = count;

    		this.frustumCulled = false;

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.instanceMatrix.copy( source.instanceMatrix );

    		if ( source.instanceColor !== null ) this.instanceColor = source.instanceColor.clone();

    		this.count = source.count;

    		return this;

    	}

    	getColorAt( index, color ) {

    		color.fromArray( this.instanceColor.array, index * 3 );

    	}

    	getMatrixAt( index, matrix ) {

    		matrix.fromArray( this.instanceMatrix.array, index * 16 );

    	}

    	raycast( raycaster, intersects ) {

    		const matrixWorld = this.matrixWorld;
    		const raycastTimes = this.count;

    		_mesh.geometry = this.geometry;
    		_mesh.material = this.material;

    		if ( _mesh.material === undefined ) return;

    		for ( let instanceId = 0; instanceId < raycastTimes; instanceId ++ ) {

    			// calculate the world matrix for each instance

    			this.getMatrixAt( instanceId, _instanceLocalMatrix );

    			_instanceWorldMatrix.multiplyMatrices( matrixWorld, _instanceLocalMatrix );

    			// the mesh represents this single instance

    			_mesh.matrixWorld = _instanceWorldMatrix;

    			_mesh.raycast( raycaster, _instanceIntersects );

    			// process the result of raycast

    			for ( let i = 0, l = _instanceIntersects.length; i < l; i ++ ) {

    				const intersect = _instanceIntersects[ i ];
    				intersect.instanceId = instanceId;
    				intersect.object = this;
    				intersects.push( intersect );

    			}

    			_instanceIntersects.length = 0;

    		}

    	}

    	setColorAt( index, color ) {

    		if ( this.instanceColor === null ) {

    			this.instanceColor = new InstancedBufferAttribute( new Float32Array( this.instanceMatrix.count * 3 ), 3 );

    		}

    		color.toArray( this.instanceColor.array, index * 3 );

    	}

    	setMatrixAt( index, matrix ) {

    		matrix.toArray( this.instanceMatrix.array, index * 16 );

    	}

    	updateMorphTargets() {

    	}

    	dispose() {

    		this.dispatchEvent( { type: 'dispose' } );

    	}

    }

    class LineBasicMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isLineBasicMaterial = true;

    		this.type = 'LineBasicMaterial';

    		this.color = new Color( 0xffffff );

    		this.linewidth = 1;
    		this.linecap = 'round';
    		this.linejoin = 'round';

    		this.fog = true;

    		this.setValues( parameters );

    	}


    	copy( source ) {

    		super.copy( source );

    		this.color.copy( source.color );

    		this.linewidth = source.linewidth;
    		this.linecap = source.linecap;
    		this.linejoin = source.linejoin;

    		this.fog = source.fog;

    		return this;

    	}

    }

    const _start$1 = /*@__PURE__*/ new Vector3();
    const _end$1 = /*@__PURE__*/ new Vector3();
    const _inverseMatrix$1 = /*@__PURE__*/ new Matrix4();
    const _ray$1 = /*@__PURE__*/ new Ray();
    const _sphere$1 = /*@__PURE__*/ new Sphere();

    class Line extends Object3D {

    	constructor( geometry = new BufferGeometry(), material = new LineBasicMaterial() ) {

    		super();

    		this.isLine = true;

    		this.type = 'Line';

    		this.geometry = geometry;
    		this.material = material;

    		this.updateMorphTargets();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.material = source.material;
    		this.geometry = source.geometry;

    		return this;

    	}

    	computeLineDistances() {

    		const geometry = this.geometry;

    		// we assume non-indexed geometry

    		if ( geometry.index === null ) {

    			const positionAttribute = geometry.attributes.position;
    			const lineDistances = [ 0 ];

    			for ( let i = 1, l = positionAttribute.count; i < l; i ++ ) {

    				_start$1.fromBufferAttribute( positionAttribute, i - 1 );
    				_end$1.fromBufferAttribute( positionAttribute, i );

    				lineDistances[ i ] = lineDistances[ i - 1 ];
    				lineDistances[ i ] += _start$1.distanceTo( _end$1 );

    			}

    			geometry.setAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );

    		} else {

    			console.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );

    		}

    		return this;

    	}

    	raycast( raycaster, intersects ) {

    		const geometry = this.geometry;
    		const matrixWorld = this.matrixWorld;
    		const threshold = raycaster.params.Line.threshold;
    		const drawRange = geometry.drawRange;

    		// Checking boundingSphere distance to ray

    		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

    		_sphere$1.copy( geometry.boundingSphere );
    		_sphere$1.applyMatrix4( matrixWorld );
    		_sphere$1.radius += threshold;

    		if ( raycaster.ray.intersectsSphere( _sphere$1 ) === false ) return;

    		//

    		_inverseMatrix$1.copy( matrixWorld ).invert();
    		_ray$1.copy( raycaster.ray ).applyMatrix4( _inverseMatrix$1 );

    		const localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
    		const localThresholdSq = localThreshold * localThreshold;

    		const vStart = new Vector3();
    		const vEnd = new Vector3();
    		const interSegment = new Vector3();
    		const interRay = new Vector3();
    		const step = this.isLineSegments ? 2 : 1;

    		const index = geometry.index;
    		const attributes = geometry.attributes;
    		const positionAttribute = attributes.position;

    		if ( index !== null ) {

    			const start = Math.max( 0, drawRange.start );
    			const end = Math.min( index.count, ( drawRange.start + drawRange.count ) );

    			for ( let i = start, l = end - 1; i < l; i += step ) {

    				const a = index.getX( i );
    				const b = index.getX( i + 1 );

    				vStart.fromBufferAttribute( positionAttribute, a );
    				vEnd.fromBufferAttribute( positionAttribute, b );

    				const distSq = _ray$1.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

    				if ( distSq > localThresholdSq ) continue;

    				interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

    				const distance = raycaster.ray.origin.distanceTo( interRay );

    				if ( distance < raycaster.near || distance > raycaster.far ) continue;

    				intersects.push( {

    					distance: distance,
    					// What do we want? intersection point on the ray or on the segment??
    					// point: raycaster.ray.at( distance ),
    					point: interSegment.clone().applyMatrix4( this.matrixWorld ),
    					index: i,
    					face: null,
    					faceIndex: null,
    					object: this

    				} );

    			}

    		} else {

    			const start = Math.max( 0, drawRange.start );
    			const end = Math.min( positionAttribute.count, ( drawRange.start + drawRange.count ) );

    			for ( let i = start, l = end - 1; i < l; i += step ) {

    				vStart.fromBufferAttribute( positionAttribute, i );
    				vEnd.fromBufferAttribute( positionAttribute, i + 1 );

    				const distSq = _ray$1.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

    				if ( distSq > localThresholdSq ) continue;

    				interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

    				const distance = raycaster.ray.origin.distanceTo( interRay );

    				if ( distance < raycaster.near || distance > raycaster.far ) continue;

    				intersects.push( {

    					distance: distance,
    					// What do we want? intersection point on the ray or on the segment??
    					// point: raycaster.ray.at( distance ),
    					point: interSegment.clone().applyMatrix4( this.matrixWorld ),
    					index: i,
    					face: null,
    					faceIndex: null,
    					object: this

    				} );

    			}

    		}

    	}

    	updateMorphTargets() {

    		const geometry = this.geometry;

    		const morphAttributes = geometry.morphAttributes;
    		const keys = Object.keys( morphAttributes );

    		if ( keys.length > 0 ) {

    			const morphAttribute = morphAttributes[ keys[ 0 ] ];

    			if ( morphAttribute !== undefined ) {

    				this.morphTargetInfluences = [];
    				this.morphTargetDictionary = {};

    				for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) {

    					const name = morphAttribute[ m ].name || String( m );

    					this.morphTargetInfluences.push( 0 );
    					this.morphTargetDictionary[ name ] = m;

    				}

    			}

    		}

    	}

    }

    const _start = /*@__PURE__*/ new Vector3();
    const _end = /*@__PURE__*/ new Vector3();

    class LineSegments extends Line {

    	constructor( geometry, material ) {

    		super( geometry, material );

    		this.isLineSegments = true;

    		this.type = 'LineSegments';

    	}

    	computeLineDistances() {

    		const geometry = this.geometry;

    		// we assume non-indexed geometry

    		if ( geometry.index === null ) {

    			const positionAttribute = geometry.attributes.position;
    			const lineDistances = [];

    			for ( let i = 0, l = positionAttribute.count; i < l; i += 2 ) {

    				_start.fromBufferAttribute( positionAttribute, i );
    				_end.fromBufferAttribute( positionAttribute, i + 1 );

    				lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
    				lineDistances[ i + 1 ] = lineDistances[ i ] + _start.distanceTo( _end );

    			}

    			geometry.setAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );

    		} else {

    			console.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );

    		}

    		return this;

    	}

    }

    class LineLoop extends Line {

    	constructor( geometry, material ) {

    		super( geometry, material );

    		this.isLineLoop = true;

    		this.type = 'LineLoop';

    	}

    }

    class PointsMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isPointsMaterial = true;

    		this.type = 'PointsMaterial';

    		this.color = new Color( 0xffffff );

    		this.map = null;

    		this.alphaMap = null;

    		this.size = 1;
    		this.sizeAttenuation = true;

    		this.fog = true;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.color.copy( source.color );

    		this.map = source.map;

    		this.alphaMap = source.alphaMap;

    		this.size = source.size;
    		this.sizeAttenuation = source.sizeAttenuation;

    		this.fog = source.fog;

    		return this;

    	}

    }

    const _inverseMatrix = /*@__PURE__*/ new Matrix4();
    const _ray = /*@__PURE__*/ new Ray();
    const _sphere = /*@__PURE__*/ new Sphere();
    const _position$2 = /*@__PURE__*/ new Vector3();

    class Points extends Object3D {

    	constructor( geometry = new BufferGeometry(), material = new PointsMaterial() ) {

    		super();

    		this.isPoints = true;

    		this.type = 'Points';

    		this.geometry = geometry;
    		this.material = material;

    		this.updateMorphTargets();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.material = source.material;
    		this.geometry = source.geometry;

    		return this;

    	}

    	raycast( raycaster, intersects ) {

    		const geometry = this.geometry;
    		const matrixWorld = this.matrixWorld;
    		const threshold = raycaster.params.Points.threshold;
    		const drawRange = geometry.drawRange;

    		// Checking boundingSphere distance to ray

    		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

    		_sphere.copy( geometry.boundingSphere );
    		_sphere.applyMatrix4( matrixWorld );
    		_sphere.radius += threshold;

    		if ( raycaster.ray.intersectsSphere( _sphere ) === false ) return;

    		//

    		_inverseMatrix.copy( matrixWorld ).invert();
    		_ray.copy( raycaster.ray ).applyMatrix4( _inverseMatrix );

    		const localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
    		const localThresholdSq = localThreshold * localThreshold;

    		const index = geometry.index;
    		const attributes = geometry.attributes;
    		const positionAttribute = attributes.position;

    		if ( index !== null ) {

    			const start = Math.max( 0, drawRange.start );
    			const end = Math.min( index.count, ( drawRange.start + drawRange.count ) );

    			for ( let i = start, il = end; i < il; i ++ ) {

    				const a = index.getX( i );

    				_position$2.fromBufferAttribute( positionAttribute, a );

    				testPoint( _position$2, a, localThresholdSq, matrixWorld, raycaster, intersects, this );

    			}

    		} else {

    			const start = Math.max( 0, drawRange.start );
    			const end = Math.min( positionAttribute.count, ( drawRange.start + drawRange.count ) );

    			for ( let i = start, l = end; i < l; i ++ ) {

    				_position$2.fromBufferAttribute( positionAttribute, i );

    				testPoint( _position$2, i, localThresholdSq, matrixWorld, raycaster, intersects, this );

    			}

    		}

    	}

    	updateMorphTargets() {

    		const geometry = this.geometry;

    		const morphAttributes = geometry.morphAttributes;
    		const keys = Object.keys( morphAttributes );

    		if ( keys.length > 0 ) {

    			const morphAttribute = morphAttributes[ keys[ 0 ] ];

    			if ( morphAttribute !== undefined ) {

    				this.morphTargetInfluences = [];
    				this.morphTargetDictionary = {};

    				for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) {

    					const name = morphAttribute[ m ].name || String( m );

    					this.morphTargetInfluences.push( 0 );
    					this.morphTargetDictionary[ name ] = m;

    				}

    			}

    		}

    	}

    }

    function testPoint( point, index, localThresholdSq, matrixWorld, raycaster, intersects, object ) {

    	const rayPointDistanceSq = _ray.distanceSqToPoint( point );

    	if ( rayPointDistanceSq < localThresholdSq ) {

    		const intersectPoint = new Vector3();

    		_ray.closestPointToPoint( point, intersectPoint );
    		intersectPoint.applyMatrix4( matrixWorld );

    		const distance = raycaster.ray.origin.distanceTo( intersectPoint );

    		if ( distance < raycaster.near || distance > raycaster.far ) return;

    		intersects.push( {

    			distance: distance,
    			distanceToRay: Math.sqrt( rayPointDistanceSq ),
    			point: intersectPoint,
    			index: index,
    			face: null,
    			object: object

    		} );

    	}

    }

    class VideoTexture extends Texture {

    	constructor( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

    		super( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

    		this.isVideoTexture = true;

    		this.minFilter = minFilter !== undefined ? minFilter : LinearFilter;
    		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;

    		this.generateMipmaps = false;

    		const scope = this;

    		function updateVideo() {

    			scope.needsUpdate = true;
    			video.requestVideoFrameCallback( updateVideo );

    		}

    		if ( 'requestVideoFrameCallback' in video ) {

    			video.requestVideoFrameCallback( updateVideo );

    		}

    	}

    	clone() {

    		return new this.constructor( this.image ).copy( this );

    	}

    	update() {

    		const video = this.image;
    		const hasVideoFrameCallback = 'requestVideoFrameCallback' in video;

    		if ( hasVideoFrameCallback === false && video.readyState >= video.HAVE_CURRENT_DATA ) {

    			this.needsUpdate = true;

    		}

    	}

    }

    class FramebufferTexture extends Texture {

    	constructor( width, height, format ) {

    		super( { width, height } );

    		this.isFramebufferTexture = true;

    		this.format = format;

    		this.magFilter = NearestFilter;
    		this.minFilter = NearestFilter;

    		this.generateMipmaps = false;

    		this.needsUpdate = true;

    	}

    }

    class CompressedTexture extends Texture {

    	constructor( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {

    		super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

    		this.isCompressedTexture = true;

    		this.image = { width: width, height: height };
    		this.mipmaps = mipmaps;

    		// no flipping for cube textures
    		// (also flipping doesn't work for compressed textures )

    		this.flipY = false;

    		// can't generate mipmaps for compressed textures
    		// mips must be embedded in DDS files

    		this.generateMipmaps = false;

    	}

    }

    class CanvasTexture extends Texture {

    	constructor( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

    		super( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

    		this.isCanvasTexture = true;

    		this.needsUpdate = true;

    	}

    }

    /**
     * Extensible curve object.
     *
     * Some common of curve methods:
     * .getPoint( t, optionalTarget ), .getTangent( t, optionalTarget )
     * .getPointAt( u, optionalTarget ), .getTangentAt( u, optionalTarget )
     * .getPoints(), .getSpacedPoints()
     * .getLength()
     * .updateArcLengths()
     *
     * This following curves inherit from THREE.Curve:
     *
     * -- 2D curves --
     * THREE.ArcCurve
     * THREE.CubicBezierCurve
     * THREE.EllipseCurve
     * THREE.LineCurve
     * THREE.QuadraticBezierCurve
     * THREE.SplineCurve
     *
     * -- 3D curves --
     * THREE.CatmullRomCurve3
     * THREE.CubicBezierCurve3
     * THREE.LineCurve3
     * THREE.QuadraticBezierCurve3
     *
     * A series of curves can be represented as a THREE.CurvePath.
     *
     **/

    class Curve {

    	constructor() {

    		this.type = 'Curve';

    		this.arcLengthDivisions = 200;

    	}

    	// Virtual base class method to overwrite and implement in subclasses
    	//	- t [0 .. 1]

    	getPoint( /* t, optionalTarget */ ) {

    		console.warn( 'THREE.Curve: .getPoint() not implemented.' );
    		return null;

    	}

    	// Get point at relative position in curve according to arc length
    	// - u [0 .. 1]

    	getPointAt( u, optionalTarget ) {

    		const t = this.getUtoTmapping( u );
    		return this.getPoint( t, optionalTarget );

    	}

    	// Get sequence of points using getPoint( t )

    	getPoints( divisions = 5 ) {

    		const points = [];

    		for ( let d = 0; d <= divisions; d ++ ) {

    			points.push( this.getPoint( d / divisions ) );

    		}

    		return points;

    	}

    	// Get sequence of points using getPointAt( u )

    	getSpacedPoints( divisions = 5 ) {

    		const points = [];

    		for ( let d = 0; d <= divisions; d ++ ) {

    			points.push( this.getPointAt( d / divisions ) );

    		}

    		return points;

    	}

    	// Get total curve arc length

    	getLength() {

    		const lengths = this.getLengths();
    		return lengths[ lengths.length - 1 ];

    	}

    	// Get list of cumulative segment lengths

    	getLengths( divisions = this.arcLengthDivisions ) {

    		if ( this.cacheArcLengths &&
    			( this.cacheArcLengths.length === divisions + 1 ) &&
    			! this.needsUpdate ) {

    			return this.cacheArcLengths;

    		}

    		this.needsUpdate = false;

    		const cache = [];
    		let current, last = this.getPoint( 0 );
    		let sum = 0;

    		cache.push( 0 );

    		for ( let p = 1; p <= divisions; p ++ ) {

    			current = this.getPoint( p / divisions );
    			sum += current.distanceTo( last );
    			cache.push( sum );
    			last = current;

    		}

    		this.cacheArcLengths = cache;

    		return cache; // { sums: cache, sum: sum }; Sum is in the last element.

    	}

    	updateArcLengths() {

    		this.needsUpdate = true;
    		this.getLengths();

    	}

    	// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant

    	getUtoTmapping( u, distance ) {

    		const arcLengths = this.getLengths();

    		let i = 0;
    		const il = arcLengths.length;

    		let targetArcLength; // The targeted u distance value to get

    		if ( distance ) {

    			targetArcLength = distance;

    		} else {

    			targetArcLength = u * arcLengths[ il - 1 ];

    		}

    		// binary search for the index with largest value smaller than target u distance

    		let low = 0, high = il - 1, comparison;

    		while ( low <= high ) {

    			i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats

    			comparison = arcLengths[ i ] - targetArcLength;

    			if ( comparison < 0 ) {

    				low = i + 1;

    			} else if ( comparison > 0 ) {

    				high = i - 1;

    			} else {

    				high = i;
    				break;

    				// DONE

    			}

    		}

    		i = high;

    		if ( arcLengths[ i ] === targetArcLength ) {

    			return i / ( il - 1 );

    		}

    		// we could get finer grain at lengths, or use simple interpolation between two points

    		const lengthBefore = arcLengths[ i ];
    		const lengthAfter = arcLengths[ i + 1 ];

    		const segmentLength = lengthAfter - lengthBefore;

    		// determine where we are between the 'before' and 'after' points

    		const segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;

    		// add that fractional amount to t

    		const t = ( i + segmentFraction ) / ( il - 1 );

    		return t;

    	}

    	// Returns a unit vector tangent at t
    	// In case any sub curve does not implement its tangent derivation,
    	// 2 points a small delta apart will be used to find its gradient
    	// which seems to give a reasonable approximation

    	getTangent( t, optionalTarget ) {

    		const delta = 0.0001;
    		let t1 = t - delta;
    		let t2 = t + delta;

    		// Capping in case of danger

    		if ( t1 < 0 ) t1 = 0;
    		if ( t2 > 1 ) t2 = 1;

    		const pt1 = this.getPoint( t1 );
    		const pt2 = this.getPoint( t2 );

    		const tangent = optionalTarget || ( ( pt1.isVector2 ) ? new Vector2() : new Vector3() );

    		tangent.copy( pt2 ).sub( pt1 ).normalize();

    		return tangent;

    	}

    	getTangentAt( u, optionalTarget ) {

    		const t = this.getUtoTmapping( u );
    		return this.getTangent( t, optionalTarget );

    	}

    	computeFrenetFrames( segments, closed ) {

    		// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf

    		const normal = new Vector3();

    		const tangents = [];
    		const normals = [];
    		const binormals = [];

    		const vec = new Vector3();
    		const mat = new Matrix4();

    		// compute the tangent vectors for each segment on the curve

    		for ( let i = 0; i <= segments; i ++ ) {

    			const u = i / segments;

    			tangents[ i ] = this.getTangentAt( u, new Vector3() );

    		}

    		// select an initial normal vector perpendicular to the first tangent vector,
    		// and in the direction of the minimum tangent xyz component

    		normals[ 0 ] = new Vector3();
    		binormals[ 0 ] = new Vector3();
    		let min = Number.MAX_VALUE;
    		const tx = Math.abs( tangents[ 0 ].x );
    		const ty = Math.abs( tangents[ 0 ].y );
    		const tz = Math.abs( tangents[ 0 ].z );

    		if ( tx <= min ) {

    			min = tx;
    			normal.set( 1, 0, 0 );

    		}

    		if ( ty <= min ) {

    			min = ty;
    			normal.set( 0, 1, 0 );

    		}

    		if ( tz <= min ) {

    			normal.set( 0, 0, 1 );

    		}

    		vec.crossVectors( tangents[ 0 ], normal ).normalize();

    		normals[ 0 ].crossVectors( tangents[ 0 ], vec );
    		binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );


    		// compute the slowly-varying normal and binormal vectors for each segment on the curve

    		for ( let i = 1; i <= segments; i ++ ) {

    			normals[ i ] = normals[ i - 1 ].clone();

    			binormals[ i ] = binormals[ i - 1 ].clone();

    			vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );

    			if ( vec.length() > Number.EPSILON ) {

    				vec.normalize();

    				const theta = Math.acos( clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors

    				normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );

    			}

    			binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

    		}

    		// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same

    		if ( closed === true ) {

    			let theta = Math.acos( clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );
    			theta /= segments;

    			if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {

    				theta = - theta;

    			}

    			for ( let i = 1; i <= segments; i ++ ) {

    				// twist a little...
    				normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
    				binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

    			}

    		}

    		return {
    			tangents: tangents,
    			normals: normals,
    			binormals: binormals
    		};

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	copy( source ) {

    		this.arcLengthDivisions = source.arcLengthDivisions;

    		return this;

    	}

    	toJSON() {

    		const data = {
    			metadata: {
    				version: 4.5,
    				type: 'Curve',
    				generator: 'Curve.toJSON'
    			}
    		};

    		data.arcLengthDivisions = this.arcLengthDivisions;
    		data.type = this.type;

    		return data;

    	}

    	fromJSON( json ) {

    		this.arcLengthDivisions = json.arcLengthDivisions;

    		return this;

    	}

    }

    class EllipseCurve extends Curve {

    	constructor( aX = 0, aY = 0, xRadius = 1, yRadius = 1, aStartAngle = 0, aEndAngle = Math.PI * 2, aClockwise = false, aRotation = 0 ) {

    		super();

    		this.isEllipseCurve = true;

    		this.type = 'EllipseCurve';

    		this.aX = aX;
    		this.aY = aY;

    		this.xRadius = xRadius;
    		this.yRadius = yRadius;

    		this.aStartAngle = aStartAngle;
    		this.aEndAngle = aEndAngle;

    		this.aClockwise = aClockwise;

    		this.aRotation = aRotation;

    	}

    	getPoint( t, optionalTarget ) {

    		const point = optionalTarget || new Vector2();

    		const twoPi = Math.PI * 2;
    		let deltaAngle = this.aEndAngle - this.aStartAngle;
    		const samePoints = Math.abs( deltaAngle ) < Number.EPSILON;

    		// ensures that deltaAngle is 0 .. 2 PI
    		while ( deltaAngle < 0 ) deltaAngle += twoPi;
    		while ( deltaAngle > twoPi ) deltaAngle -= twoPi;

    		if ( deltaAngle < Number.EPSILON ) {

    			if ( samePoints ) {

    				deltaAngle = 0;

    			} else {

    				deltaAngle = twoPi;

    			}

    		}

    		if ( this.aClockwise === true && ! samePoints ) {

    			if ( deltaAngle === twoPi ) {

    				deltaAngle = - twoPi;

    			} else {

    				deltaAngle = deltaAngle - twoPi;

    			}

    		}

    		const angle = this.aStartAngle + t * deltaAngle;
    		let x = this.aX + this.xRadius * Math.cos( angle );
    		let y = this.aY + this.yRadius * Math.sin( angle );

    		if ( this.aRotation !== 0 ) {

    			const cos = Math.cos( this.aRotation );
    			const sin = Math.sin( this.aRotation );

    			const tx = x - this.aX;
    			const ty = y - this.aY;

    			// Rotate the point about the center of the ellipse.
    			x = tx * cos - ty * sin + this.aX;
    			y = tx * sin + ty * cos + this.aY;

    		}

    		return point.set( x, y );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.aX = source.aX;
    		this.aY = source.aY;

    		this.xRadius = source.xRadius;
    		this.yRadius = source.yRadius;

    		this.aStartAngle = source.aStartAngle;
    		this.aEndAngle = source.aEndAngle;

    		this.aClockwise = source.aClockwise;

    		this.aRotation = source.aRotation;

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.aX = this.aX;
    		data.aY = this.aY;

    		data.xRadius = this.xRadius;
    		data.yRadius = this.yRadius;

    		data.aStartAngle = this.aStartAngle;
    		data.aEndAngle = this.aEndAngle;

    		data.aClockwise = this.aClockwise;

    		data.aRotation = this.aRotation;

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.aX = json.aX;
    		this.aY = json.aY;

    		this.xRadius = json.xRadius;
    		this.yRadius = json.yRadius;

    		this.aStartAngle = json.aStartAngle;
    		this.aEndAngle = json.aEndAngle;

    		this.aClockwise = json.aClockwise;

    		this.aRotation = json.aRotation;

    		return this;

    	}

    }

    class ArcCurve extends EllipseCurve {

    	constructor( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

    		super( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

    		this.isArcCurve = true;

    		this.type = 'ArcCurve';

    	}

    }

    /**
     * Centripetal CatmullRom Curve - which is useful for avoiding
     * cusps and self-intersections in non-uniform catmull rom curves.
     * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
     *
     * curve.type accepts centripetal(default), chordal and catmullrom
     * curve.tension is used for catmullrom which defaults to 0.5
     */


    /*
    Based on an optimized c++ solution in
     - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
     - http://ideone.com/NoEbVM

    This CubicPoly class could be used for reusing some variables and calculations,
    but for three.js curve use, it could be possible inlined and flatten into a single function call
    which can be placed in CurveUtils.
    */

    function CubicPoly() {

    	let c0 = 0, c1 = 0, c2 = 0, c3 = 0;

    	/*
    	 * Compute coefficients for a cubic polynomial
    	 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
    	 * such that
    	 *   p(0) = x0, p(1) = x1
    	 *  and
    	 *   p'(0) = t0, p'(1) = t1.
    	 */
    	function init( x0, x1, t0, t1 ) {

    		c0 = x0;
    		c1 = t0;
    		c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
    		c3 = 2 * x0 - 2 * x1 + t0 + t1;

    	}

    	return {

    		initCatmullRom: function ( x0, x1, x2, x3, tension ) {

    			init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );

    		},

    		initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {

    			// compute tangents when parameterized in [t1,t2]
    			let t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
    			let t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;

    			// rescale tangents for parametrization in [0,1]
    			t1 *= dt1;
    			t2 *= dt1;

    			init( x1, x2, t1, t2 );

    		},

    		calc: function ( t ) {

    			const t2 = t * t;
    			const t3 = t2 * t;
    			return c0 + c1 * t + c2 * t2 + c3 * t3;

    		}

    	};

    }

    //

    const tmp = /*@__PURE__*/ new Vector3();
    const px = /*@__PURE__*/ new CubicPoly();
    const py = /*@__PURE__*/ new CubicPoly();
    const pz = /*@__PURE__*/ new CubicPoly();

    class CatmullRomCurve3 extends Curve {

    	constructor( points = [], closed = false, curveType = 'centripetal', tension = 0.5 ) {

    		super();

    		this.isCatmullRomCurve3 = true;

    		this.type = 'CatmullRomCurve3';

    		this.points = points;
    		this.closed = closed;
    		this.curveType = curveType;
    		this.tension = tension;

    	}

    	getPoint( t, optionalTarget = new Vector3() ) {

    		const point = optionalTarget;

    		const points = this.points;
    		const l = points.length;

    		const p = ( l - ( this.closed ? 0 : 1 ) ) * t;
    		let intPoint = Math.floor( p );
    		let weight = p - intPoint;

    		if ( this.closed ) {

    			intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l;

    		} else if ( weight === 0 && intPoint === l - 1 ) {

    			intPoint = l - 2;
    			weight = 1;

    		}

    		let p0, p3; // 4 points (p1 & p2 defined below)

    		if ( this.closed || intPoint > 0 ) {

    			p0 = points[ ( intPoint - 1 ) % l ];

    		} else {

    			// extrapolate first point
    			tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
    			p0 = tmp;

    		}

    		const p1 = points[ intPoint % l ];
    		const p2 = points[ ( intPoint + 1 ) % l ];

    		if ( this.closed || intPoint + 2 < l ) {

    			p3 = points[ ( intPoint + 2 ) % l ];

    		} else {

    			// extrapolate last point
    			tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );
    			p3 = tmp;

    		}

    		if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {

    			// init Centripetal / Chordal Catmull-Rom
    			const pow = this.curveType === 'chordal' ? 0.5 : 0.25;
    			let dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
    			let dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
    			let dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );

    			// safety check for repeated points
    			if ( dt1 < 1e-4 ) dt1 = 1.0;
    			if ( dt0 < 1e-4 ) dt0 = dt1;
    			if ( dt2 < 1e-4 ) dt2 = dt1;

    			px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
    			py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
    			pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );

    		} else if ( this.curveType === 'catmullrom' ) {

    			px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );
    			py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );
    			pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );

    		}

    		point.set(
    			px.calc( weight ),
    			py.calc( weight ),
    			pz.calc( weight )
    		);

    		return point;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.points = [];

    		for ( let i = 0, l = source.points.length; i < l; i ++ ) {

    			const point = source.points[ i ];

    			this.points.push( point.clone() );

    		}

    		this.closed = source.closed;
    		this.curveType = source.curveType;
    		this.tension = source.tension;

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.points = [];

    		for ( let i = 0, l = this.points.length; i < l; i ++ ) {

    			const point = this.points[ i ];
    			data.points.push( point.toArray() );

    		}

    		data.closed = this.closed;
    		data.curveType = this.curveType;
    		data.tension = this.tension;

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.points = [];

    		for ( let i = 0, l = json.points.length; i < l; i ++ ) {

    			const point = json.points[ i ];
    			this.points.push( new Vector3().fromArray( point ) );

    		}

    		this.closed = json.closed;
    		this.curveType = json.curveType;
    		this.tension = json.tension;

    		return this;

    	}

    }

    /**
     * Bezier Curves formulas obtained from
     * https://en.wikipedia.org/wiki/B%C3%A9zier_curve
     */

    function CatmullRom( t, p0, p1, p2, p3 ) {

    	const v0 = ( p2 - p0 ) * 0.5;
    	const v1 = ( p3 - p1 ) * 0.5;
    	const t2 = t * t;
    	const t3 = t * t2;
    	return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;

    }

    //

    function QuadraticBezierP0( t, p ) {

    	const k = 1 - t;
    	return k * k * p;

    }

    function QuadraticBezierP1( t, p ) {

    	return 2 * ( 1 - t ) * t * p;

    }

    function QuadraticBezierP2( t, p ) {

    	return t * t * p;

    }

    function QuadraticBezier( t, p0, p1, p2 ) {

    	return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +
    		QuadraticBezierP2( t, p2 );

    }

    //

    function CubicBezierP0( t, p ) {

    	const k = 1 - t;
    	return k * k * k * p;

    }

    function CubicBezierP1( t, p ) {

    	const k = 1 - t;
    	return 3 * k * k * t * p;

    }

    function CubicBezierP2( t, p ) {

    	return 3 * ( 1 - t ) * t * t * p;

    }

    function CubicBezierP3( t, p ) {

    	return t * t * t * p;

    }

    function CubicBezier( t, p0, p1, p2, p3 ) {

    	return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +
    		CubicBezierP3( t, p3 );

    }

    class CubicBezierCurve extends Curve {

    	constructor( v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2(), v3 = new Vector2() ) {

    		super();

    		this.isCubicBezierCurve = true;

    		this.type = 'CubicBezierCurve';

    		this.v0 = v0;
    		this.v1 = v1;
    		this.v2 = v2;
    		this.v3 = v3;

    	}

    	getPoint( t, optionalTarget = new Vector2() ) {

    		const point = optionalTarget;

    		const v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;

    		point.set(
    			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
    			CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
    		);

    		return point;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.v0.copy( source.v0 );
    		this.v1.copy( source.v1 );
    		this.v2.copy( source.v2 );
    		this.v3.copy( source.v3 );

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.v0 = this.v0.toArray();
    		data.v1 = this.v1.toArray();
    		data.v2 = this.v2.toArray();
    		data.v3 = this.v3.toArray();

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.v0.fromArray( json.v0 );
    		this.v1.fromArray( json.v1 );
    		this.v2.fromArray( json.v2 );
    		this.v3.fromArray( json.v3 );

    		return this;

    	}

    }

    class CubicBezierCurve3 extends Curve {

    	constructor( v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3(), v3 = new Vector3() ) {

    		super();

    		this.isCubicBezierCurve3 = true;

    		this.type = 'CubicBezierCurve3';

    		this.v0 = v0;
    		this.v1 = v1;
    		this.v2 = v2;
    		this.v3 = v3;

    	}

    	getPoint( t, optionalTarget = new Vector3() ) {

    		const point = optionalTarget;

    		const v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;

    		point.set(
    			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
    			CubicBezier( t, v0.y, v1.y, v2.y, v3.y ),
    			CubicBezier( t, v0.z, v1.z, v2.z, v3.z )
    		);

    		return point;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.v0.copy( source.v0 );
    		this.v1.copy( source.v1 );
    		this.v2.copy( source.v2 );
    		this.v3.copy( source.v3 );

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.v0 = this.v0.toArray();
    		data.v1 = this.v1.toArray();
    		data.v2 = this.v2.toArray();
    		data.v3 = this.v3.toArray();

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.v0.fromArray( json.v0 );
    		this.v1.fromArray( json.v1 );
    		this.v2.fromArray( json.v2 );
    		this.v3.fromArray( json.v3 );

    		return this;

    	}

    }

    class LineCurve extends Curve {

    	constructor( v1 = new Vector2(), v2 = new Vector2() ) {

    		super();

    		this.isLineCurve = true;

    		this.type = 'LineCurve';

    		this.v1 = v1;
    		this.v2 = v2;

    	}

    	getPoint( t, optionalTarget = new Vector2() ) {

    		const point = optionalTarget;

    		if ( t === 1 ) {

    			point.copy( this.v2 );

    		} else {

    			point.copy( this.v2 ).sub( this.v1 );
    			point.multiplyScalar( t ).add( this.v1 );

    		}

    		return point;

    	}

    	// Line curve is linear, so we can overwrite default getPointAt
    	getPointAt( u, optionalTarget ) {

    		return this.getPoint( u, optionalTarget );

    	}

    	getTangent( t, optionalTarget ) {

    		const tangent = optionalTarget || new Vector2();

    		tangent.copy( this.v2 ).sub( this.v1 ).normalize();

    		return tangent;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.v1.copy( source.v1 );
    		this.v2.copy( source.v2 );

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.v1 = this.v1.toArray();
    		data.v2 = this.v2.toArray();

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.v1.fromArray( json.v1 );
    		this.v2.fromArray( json.v2 );

    		return this;

    	}

    }

    class LineCurve3 extends Curve {

    	constructor( v1 = new Vector3(), v2 = new Vector3() ) {

    		super();

    		this.isLineCurve3 = true;

    		this.type = 'LineCurve3';

    		this.v1 = v1;
    		this.v2 = v2;

    	}
    	getPoint( t, optionalTarget = new Vector3() ) {

    		const point = optionalTarget;

    		if ( t === 1 ) {

    			point.copy( this.v2 );

    		} else {

    			point.copy( this.v2 ).sub( this.v1 );
    			point.multiplyScalar( t ).add( this.v1 );

    		}

    		return point;

    	}
    	// Line curve is linear, so we can overwrite default getPointAt
    	getPointAt( u, optionalTarget ) {

    		return this.getPoint( u, optionalTarget );

    	}
    	copy( source ) {

    		super.copy( source );

    		this.v1.copy( source.v1 );
    		this.v2.copy( source.v2 );

    		return this;

    	}
    	toJSON() {

    		const data = super.toJSON();

    		data.v1 = this.v1.toArray();
    		data.v2 = this.v2.toArray();

    		return data;

    	}
    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.v1.fromArray( json.v1 );
    		this.v2.fromArray( json.v2 );

    		return this;

    	}

    }

    class QuadraticBezierCurve extends Curve {

    	constructor( v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2() ) {

    		super();

    		this.isQuadraticBezierCurve = true;

    		this.type = 'QuadraticBezierCurve';

    		this.v0 = v0;
    		this.v1 = v1;
    		this.v2 = v2;

    	}

    	getPoint( t, optionalTarget = new Vector2() ) {

    		const point = optionalTarget;

    		const v0 = this.v0, v1 = this.v1, v2 = this.v2;

    		point.set(
    			QuadraticBezier( t, v0.x, v1.x, v2.x ),
    			QuadraticBezier( t, v0.y, v1.y, v2.y )
    		);

    		return point;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.v0.copy( source.v0 );
    		this.v1.copy( source.v1 );
    		this.v2.copy( source.v2 );

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.v0 = this.v0.toArray();
    		data.v1 = this.v1.toArray();
    		data.v2 = this.v2.toArray();

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.v0.fromArray( json.v0 );
    		this.v1.fromArray( json.v1 );
    		this.v2.fromArray( json.v2 );

    		return this;

    	}

    }

    class QuadraticBezierCurve3 extends Curve {

    	constructor( v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3() ) {

    		super();

    		this.isQuadraticBezierCurve3 = true;

    		this.type = 'QuadraticBezierCurve3';

    		this.v0 = v0;
    		this.v1 = v1;
    		this.v2 = v2;

    	}

    	getPoint( t, optionalTarget = new Vector3() ) {

    		const point = optionalTarget;

    		const v0 = this.v0, v1 = this.v1, v2 = this.v2;

    		point.set(
    			QuadraticBezier( t, v0.x, v1.x, v2.x ),
    			QuadraticBezier( t, v0.y, v1.y, v2.y ),
    			QuadraticBezier( t, v0.z, v1.z, v2.z )
    		);

    		return point;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.v0.copy( source.v0 );
    		this.v1.copy( source.v1 );
    		this.v2.copy( source.v2 );

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.v0 = this.v0.toArray();
    		data.v1 = this.v1.toArray();
    		data.v2 = this.v2.toArray();

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.v0.fromArray( json.v0 );
    		this.v1.fromArray( json.v1 );
    		this.v2.fromArray( json.v2 );

    		return this;

    	}

    }

    class SplineCurve extends Curve {

    	constructor( points = [] ) {

    		super();

    		this.isSplineCurve = true;

    		this.type = 'SplineCurve';

    		this.points = points;

    	}

    	getPoint( t, optionalTarget = new Vector2() ) {

    		const point = optionalTarget;

    		const points = this.points;
    		const p = ( points.length - 1 ) * t;

    		const intPoint = Math.floor( p );
    		const weight = p - intPoint;

    		const p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
    		const p1 = points[ intPoint ];
    		const p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
    		const p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];

    		point.set(
    			CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),
    			CatmullRom( weight, p0.y, p1.y, p2.y, p3.y )
    		);

    		return point;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.points = [];

    		for ( let i = 0, l = source.points.length; i < l; i ++ ) {

    			const point = source.points[ i ];

    			this.points.push( point.clone() );

    		}

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.points = [];

    		for ( let i = 0, l = this.points.length; i < l; i ++ ) {

    			const point = this.points[ i ];
    			data.points.push( point.toArray() );

    		}

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.points = [];

    		for ( let i = 0, l = json.points.length; i < l; i ++ ) {

    			const point = json.points[ i ];
    			this.points.push( new Vector2().fromArray( point ) );

    		}

    		return this;

    	}

    }

    var Curves = /*#__PURE__*/Object.freeze({
    	__proto__: null,
    	ArcCurve: ArcCurve,
    	CatmullRomCurve3: CatmullRomCurve3,
    	CubicBezierCurve: CubicBezierCurve,
    	CubicBezierCurve3: CubicBezierCurve3,
    	EllipseCurve: EllipseCurve,
    	LineCurve: LineCurve,
    	LineCurve3: LineCurve3,
    	QuadraticBezierCurve: QuadraticBezierCurve,
    	QuadraticBezierCurve3: QuadraticBezierCurve3,
    	SplineCurve: SplineCurve
    });

    /**************************************************************
     *	Curved Path - a curve path is simply a array of connected
     *  curves, but retains the api of a curve
     **************************************************************/

    class CurvePath extends Curve {

    	constructor() {

    		super();

    		this.type = 'CurvePath';

    		this.curves = [];
    		this.autoClose = false; // Automatically closes the path

    	}

    	add( curve ) {

    		this.curves.push( curve );

    	}

    	closePath() {

    		// Add a line curve if start and end of lines are not connected
    		const startPoint = this.curves[ 0 ].getPoint( 0 );
    		const endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );

    		if ( ! startPoint.equals( endPoint ) ) {

    			this.curves.push( new LineCurve( endPoint, startPoint ) );

    		}

    	}

    	// To get accurate point with reference to
    	// entire path distance at time t,
    	// following has to be done:

    	// 1. Length of each sub path have to be known
    	// 2. Locate and identify type of curve
    	// 3. Get t for the curve
    	// 4. Return curve.getPointAt(t')

    	getPoint( t, optionalTarget ) {

    		const d = t * this.getLength();
    		const curveLengths = this.getCurveLengths();
    		let i = 0;

    		// To think about boundaries points.

    		while ( i < curveLengths.length ) {

    			if ( curveLengths[ i ] >= d ) {

    				const diff = curveLengths[ i ] - d;
    				const curve = this.curves[ i ];

    				const segmentLength = curve.getLength();
    				const u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;

    				return curve.getPointAt( u, optionalTarget );

    			}

    			i ++;

    		}

    		return null;

    		// loop where sum != 0, sum > d , sum+1 <d

    	}

    	// We cannot use the default THREE.Curve getPoint() with getLength() because in
    	// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
    	// getPoint() depends on getLength

    	getLength() {

    		const lens = this.getCurveLengths();
    		return lens[ lens.length - 1 ];

    	}

    	// cacheLengths must be recalculated.
    	updateArcLengths() {

    		this.needsUpdate = true;
    		this.cacheLengths = null;
    		this.getCurveLengths();

    	}

    	// Compute lengths and cache them
    	// We cannot overwrite getLengths() because UtoT mapping uses it.

    	getCurveLengths() {

    		// We use cache values if curves and cache array are same length

    		if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {

    			return this.cacheLengths;

    		}

    		// Get length of sub-curve
    		// Push sums into cached array

    		const lengths = [];
    		let sums = 0;

    		for ( let i = 0, l = this.curves.length; i < l; i ++ ) {

    			sums += this.curves[ i ].getLength();
    			lengths.push( sums );

    		}

    		this.cacheLengths = lengths;

    		return lengths;

    	}

    	getSpacedPoints( divisions = 40 ) {

    		const points = [];

    		for ( let i = 0; i <= divisions; i ++ ) {

    			points.push( this.getPoint( i / divisions ) );

    		}

    		if ( this.autoClose ) {

    			points.push( points[ 0 ] );

    		}

    		return points;

    	}

    	getPoints( divisions = 12 ) {

    		const points = [];
    		let last;

    		for ( let i = 0, curves = this.curves; i < curves.length; i ++ ) {

    			const curve = curves[ i ];
    			const resolution = curve.isEllipseCurve ? divisions * 2
    				: ( curve.isLineCurve || curve.isLineCurve3 ) ? 1
    					: curve.isSplineCurve ? divisions * curve.points.length
    						: divisions;

    			const pts = curve.getPoints( resolution );

    			for ( let j = 0; j < pts.length; j ++ ) {

    				const point = pts[ j ];

    				if ( last && last.equals( point ) ) continue; // ensures no consecutive points are duplicates

    				points.push( point );
    				last = point;

    			}

    		}

    		if ( this.autoClose && points.length > 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {

    			points.push( points[ 0 ] );

    		}

    		return points;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.curves = [];

    		for ( let i = 0, l = source.curves.length; i < l; i ++ ) {

    			const curve = source.curves[ i ];

    			this.curves.push( curve.clone() );

    		}

    		this.autoClose = source.autoClose;

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.autoClose = this.autoClose;
    		data.curves = [];

    		for ( let i = 0, l = this.curves.length; i < l; i ++ ) {

    			const curve = this.curves[ i ];
    			data.curves.push( curve.toJSON() );

    		}

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.autoClose = json.autoClose;
    		this.curves = [];

    		for ( let i = 0, l = json.curves.length; i < l; i ++ ) {

    			const curve = json.curves[ i ];
    			this.curves.push( new Curves[ curve.type ]().fromJSON( curve ) );

    		}

    		return this;

    	}

    }

    class Path extends CurvePath {

    	constructor( points ) {

    		super();

    		this.type = 'Path';

    		this.currentPoint = new Vector2();

    		if ( points ) {

    			this.setFromPoints( points );

    		}

    	}

    	setFromPoints( points ) {

    		this.moveTo( points[ 0 ].x, points[ 0 ].y );

    		for ( let i = 1, l = points.length; i < l; i ++ ) {

    			this.lineTo( points[ i ].x, points[ i ].y );

    		}

    		return this;

    	}

    	moveTo( x, y ) {

    		this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?

    		return this;

    	}

    	lineTo( x, y ) {

    		const curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
    		this.curves.push( curve );

    		this.currentPoint.set( x, y );

    		return this;

    	}

    	quadraticCurveTo( aCPx, aCPy, aX, aY ) {

    		const curve = new QuadraticBezierCurve(
    			this.currentPoint.clone(),
    			new Vector2( aCPx, aCPy ),
    			new Vector2( aX, aY )
    		);

    		this.curves.push( curve );

    		this.currentPoint.set( aX, aY );

    		return this;

    	}

    	bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

    		const curve = new CubicBezierCurve(
    			this.currentPoint.clone(),
    			new Vector2( aCP1x, aCP1y ),
    			new Vector2( aCP2x, aCP2y ),
    			new Vector2( aX, aY )
    		);

    		this.curves.push( curve );

    		this.currentPoint.set( aX, aY );

    		return this;

    	}

    	splineThru( pts /*Array of Vector*/ ) {

    		const npts = [ this.currentPoint.clone() ].concat( pts );

    		const curve = new SplineCurve( npts );
    		this.curves.push( curve );

    		this.currentPoint.copy( pts[ pts.length - 1 ] );

    		return this;

    	}

    	arc( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

    		const x0 = this.currentPoint.x;
    		const y0 = this.currentPoint.y;

    		this.absarc( aX + x0, aY + y0, aRadius,
    			aStartAngle, aEndAngle, aClockwise );

    		return this;

    	}

    	absarc( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

    		this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

    		return this;

    	}

    	ellipse( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

    		const x0 = this.currentPoint.x;
    		const y0 = this.currentPoint.y;

    		this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

    		return this;

    	}

    	absellipse( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

    		const curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

    		if ( this.curves.length > 0 ) {

    			// if a previous curve is present, attempt to join
    			const firstPoint = curve.getPoint( 0 );

    			if ( ! firstPoint.equals( this.currentPoint ) ) {

    				this.lineTo( firstPoint.x, firstPoint.y );

    			}

    		}

    		this.curves.push( curve );

    		const lastPoint = curve.getPoint( 1 );
    		this.currentPoint.copy( lastPoint );

    		return this;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.currentPoint.copy( source.currentPoint );

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.currentPoint = this.currentPoint.toArray();

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.currentPoint.fromArray( json.currentPoint );

    		return this;

    	}

    }

    class LatheGeometry extends BufferGeometry {

    	constructor( points = [ new Vector2( 0, - 0.5 ), new Vector2( 0.5, 0 ), new Vector2( 0, 0.5 ) ], segments = 12, phiStart = 0, phiLength = Math.PI * 2 ) {

    		super();

    		this.type = 'LatheGeometry';

    		this.parameters = {
    			points: points,
    			segments: segments,
    			phiStart: phiStart,
    			phiLength: phiLength
    		};

    		segments = Math.floor( segments );

    		// clamp phiLength so it's in range of [ 0, 2PI ]

    		phiLength = clamp( phiLength, 0, Math.PI * 2 );

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const uvs = [];
    		const initNormals = [];
    		const normals = [];

    		// helper variables

    		const inverseSegments = 1.0 / segments;
    		const vertex = new Vector3();
    		const uv = new Vector2();
    		const normal = new Vector3();
    		const curNormal = new Vector3();
    		const prevNormal = new Vector3();
    		let dx = 0;
    		let dy = 0;

    		// pre-compute normals for initial "meridian"

    		for ( let j = 0; j <= ( points.length - 1 ); j ++ ) {

    			switch ( j ) {

    				case 0:				// special handling for 1st vertex on path

    					dx = points[ j + 1 ].x - points[ j ].x;
    					dy = points[ j + 1 ].y - points[ j ].y;

    					normal.x = dy * 1.0;
    					normal.y = - dx;
    					normal.z = dy * 0.0;

    					prevNormal.copy( normal );

    					normal.normalize();

    					initNormals.push( normal.x, normal.y, normal.z );

    					break;

    				case ( points.length - 1 ):	// special handling for last Vertex on path

    					initNormals.push( prevNormal.x, prevNormal.y, prevNormal.z );

    					break;

    				default:			// default handling for all vertices in between

    					dx = points[ j + 1 ].x - points[ j ].x;
    					dy = points[ j + 1 ].y - points[ j ].y;

    					normal.x = dy * 1.0;
    					normal.y = - dx;
    					normal.z = dy * 0.0;

    					curNormal.copy( normal );

    					normal.x += prevNormal.x;
    					normal.y += prevNormal.y;
    					normal.z += prevNormal.z;

    					normal.normalize();

    					initNormals.push( normal.x, normal.y, normal.z );

    					prevNormal.copy( curNormal );

    			}

    		}

    		// generate vertices, uvs and normals

    		for ( let i = 0; i <= segments; i ++ ) {

    			const phi = phiStart + i * inverseSegments * phiLength;

    			const sin = Math.sin( phi );
    			const cos = Math.cos( phi );

    			for ( let j = 0; j <= ( points.length - 1 ); j ++ ) {

    				// vertex

    				vertex.x = points[ j ].x * sin;
    				vertex.y = points[ j ].y;
    				vertex.z = points[ j ].x * cos;

    				vertices.push( vertex.x, vertex.y, vertex.z );

    				// uv

    				uv.x = i / segments;
    				uv.y = j / ( points.length - 1 );

    				uvs.push( uv.x, uv.y );

    				// normal

    				const x = initNormals[ 3 * j + 0 ] * sin;
    				const y = initNormals[ 3 * j + 1 ];
    				const z = initNormals[ 3 * j + 0 ] * cos;

    				normals.push( x, y, z );

    			}

    		}

    		// indices

    		for ( let i = 0; i < segments; i ++ ) {

    			for ( let j = 0; j < ( points.length - 1 ); j ++ ) {

    				const base = j + i * points.length;

    				const a = base;
    				const b = base + points.length;
    				const c = base + points.length + 1;
    				const d = base + 1;

    				// faces

    				indices.push( a, b, d );
    				indices.push( c, d, b );

    			}

    		}

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );

    	}

    	static fromJSON( data ) {

    		return new LatheGeometry( data.points, data.segments, data.phiStart, data.phiLength );

    	}

    }

    class CapsuleGeometry extends LatheGeometry {

    	constructor( radius = 1, length = 1, capSegments = 4, radialSegments = 8 ) {

    		const path = new Path();
    		path.absarc( 0, - length / 2, radius, Math.PI * 1.5, 0 );
    		path.absarc( 0, length / 2, radius, 0, Math.PI * 0.5 );

    		super( path.getPoints( capSegments ), radialSegments );

    		this.type = 'CapsuleGeometry';

    		this.parameters = {
    			radius: radius,
    			height: length,
    			capSegments: capSegments,
    			radialSegments: radialSegments,
    		};

    	}

    	static fromJSON( data ) {

    		return new CapsuleGeometry( data.radius, data.length, data.capSegments, data.radialSegments );

    	}

    }

    class CircleGeometry extends BufferGeometry {

    	constructor( radius = 1, segments = 8, thetaStart = 0, thetaLength = Math.PI * 2 ) {

    		super();

    		this.type = 'CircleGeometry';

    		this.parameters = {
    			radius: radius,
    			segments: segments,
    			thetaStart: thetaStart,
    			thetaLength: thetaLength
    		};

    		segments = Math.max( 3, segments );

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		// helper variables

    		const vertex = new Vector3();
    		const uv = new Vector2();

    		// center point

    		vertices.push( 0, 0, 0 );
    		normals.push( 0, 0, 1 );
    		uvs.push( 0.5, 0.5 );

    		for ( let s = 0, i = 3; s <= segments; s ++, i += 3 ) {

    			const segment = thetaStart + s / segments * thetaLength;

    			// vertex

    			vertex.x = radius * Math.cos( segment );
    			vertex.y = radius * Math.sin( segment );

    			vertices.push( vertex.x, vertex.y, vertex.z );

    			// normal

    			normals.push( 0, 0, 1 );

    			// uvs

    			uv.x = ( vertices[ i ] / radius + 1 ) / 2;
    			uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;

    			uvs.push( uv.x, uv.y );

    		}

    		// indices

    		for ( let i = 1; i <= segments; i ++ ) {

    			indices.push( i, i + 1, 0 );

    		}

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    	}

    	static fromJSON( data ) {

    		return new CircleGeometry( data.radius, data.segments, data.thetaStart, data.thetaLength );

    	}

    }

    class CylinderGeometry extends BufferGeometry {

    	constructor( radiusTop = 1, radiusBottom = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) {

    		super();

    		this.type = 'CylinderGeometry';

    		this.parameters = {
    			radiusTop: radiusTop,
    			radiusBottom: radiusBottom,
    			height: height,
    			radialSegments: radialSegments,
    			heightSegments: heightSegments,
    			openEnded: openEnded,
    			thetaStart: thetaStart,
    			thetaLength: thetaLength
    		};

    		const scope = this;

    		radialSegments = Math.floor( radialSegments );
    		heightSegments = Math.floor( heightSegments );

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		// helper variables

    		let index = 0;
    		const indexArray = [];
    		const halfHeight = height / 2;
    		let groupStart = 0;

    		// generate geometry

    		generateTorso();

    		if ( openEnded === false ) {

    			if ( radiusTop > 0 ) generateCap( true );
    			if ( radiusBottom > 0 ) generateCap( false );

    		}

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    		function generateTorso() {

    			const normal = new Vector3();
    			const vertex = new Vector3();

    			let groupCount = 0;

    			// this will be used to calculate the normal
    			const slope = ( radiusBottom - radiusTop ) / height;

    			// generate vertices, normals and uvs

    			for ( let y = 0; y <= heightSegments; y ++ ) {

    				const indexRow = [];

    				const v = y / heightSegments;

    				// calculate the radius of the current row

    				const radius = v * ( radiusBottom - radiusTop ) + radiusTop;

    				for ( let x = 0; x <= radialSegments; x ++ ) {

    					const u = x / radialSegments;

    					const theta = u * thetaLength + thetaStart;

    					const sinTheta = Math.sin( theta );
    					const cosTheta = Math.cos( theta );

    					// vertex

    					vertex.x = radius * sinTheta;
    					vertex.y = - v * height + halfHeight;
    					vertex.z = radius * cosTheta;
    					vertices.push( vertex.x, vertex.y, vertex.z );

    					// normal

    					normal.set( sinTheta, slope, cosTheta ).normalize();
    					normals.push( normal.x, normal.y, normal.z );

    					// uv

    					uvs.push( u, 1 - v );

    					// save index of vertex in respective row

    					indexRow.push( index ++ );

    				}

    				// now save vertices of the row in our index array

    				indexArray.push( indexRow );

    			}

    			// generate indices

    			for ( let x = 0; x < radialSegments; x ++ ) {

    				for ( let y = 0; y < heightSegments; y ++ ) {

    					// we use the index array to access the correct indices

    					const a = indexArray[ y ][ x ];
    					const b = indexArray[ y + 1 ][ x ];
    					const c = indexArray[ y + 1 ][ x + 1 ];
    					const d = indexArray[ y ][ x + 1 ];

    					// faces

    					indices.push( a, b, d );
    					indices.push( b, c, d );

    					// update group counter

    					groupCount += 6;

    				}

    			}

    			// add a group to the geometry. this will ensure multi material support

    			scope.addGroup( groupStart, groupCount, 0 );

    			// calculate new start value for groups

    			groupStart += groupCount;

    		}

    		function generateCap( top ) {

    			// save the index of the first center vertex
    			const centerIndexStart = index;

    			const uv = new Vector2();
    			const vertex = new Vector3();

    			let groupCount = 0;

    			const radius = ( top === true ) ? radiusTop : radiusBottom;
    			const sign = ( top === true ) ? 1 : - 1;

    			// first we generate the center vertex data of the cap.
    			// because the geometry needs one set of uvs per face,
    			// we must generate a center vertex per face/segment

    			for ( let x = 1; x <= radialSegments; x ++ ) {

    				// vertex

    				vertices.push( 0, halfHeight * sign, 0 );

    				// normal

    				normals.push( 0, sign, 0 );

    				// uv

    				uvs.push( 0.5, 0.5 );

    				// increase index

    				index ++;

    			}

    			// save the index of the last center vertex
    			const centerIndexEnd = index;

    			// now we generate the surrounding vertices, normals and uvs

    			for ( let x = 0; x <= radialSegments; x ++ ) {

    				const u = x / radialSegments;
    				const theta = u * thetaLength + thetaStart;

    				const cosTheta = Math.cos( theta );
    				const sinTheta = Math.sin( theta );

    				// vertex

    				vertex.x = radius * sinTheta;
    				vertex.y = halfHeight * sign;
    				vertex.z = radius * cosTheta;
    				vertices.push( vertex.x, vertex.y, vertex.z );

    				// normal

    				normals.push( 0, sign, 0 );

    				// uv

    				uv.x = ( cosTheta * 0.5 ) + 0.5;
    				uv.y = ( sinTheta * 0.5 * sign ) + 0.5;
    				uvs.push( uv.x, uv.y );

    				// increase index

    				index ++;

    			}

    			// generate indices

    			for ( let x = 0; x < radialSegments; x ++ ) {

    				const c = centerIndexStart + x;
    				const i = centerIndexEnd + x;

    				if ( top === true ) {

    					// face top

    					indices.push( i, i + 1, c );

    				} else {

    					// face bottom

    					indices.push( i + 1, i, c );

    				}

    				groupCount += 3;

    			}

    			// add a group to the geometry. this will ensure multi material support

    			scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );

    			// calculate new start value for groups

    			groupStart += groupCount;

    		}

    	}

    	static fromJSON( data ) {

    		return new CylinderGeometry( data.radiusTop, data.radiusBottom, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength );

    	}

    }

    class ConeGeometry extends CylinderGeometry {

    	constructor( radius = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) {

    		super( 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

    		this.type = 'ConeGeometry';

    		this.parameters = {
    			radius: radius,
    			height: height,
    			radialSegments: radialSegments,
    			heightSegments: heightSegments,
    			openEnded: openEnded,
    			thetaStart: thetaStart,
    			thetaLength: thetaLength
    		};

    	}

    	static fromJSON( data ) {

    		return new ConeGeometry( data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength );

    	}

    }

    class PolyhedronGeometry extends BufferGeometry {

    	constructor( vertices = [], indices = [], radius = 1, detail = 0 ) {

    		super();

    		this.type = 'PolyhedronGeometry';

    		this.parameters = {
    			vertices: vertices,
    			indices: indices,
    			radius: radius,
    			detail: detail
    		};

    		// default buffer data

    		const vertexBuffer = [];
    		const uvBuffer = [];

    		// the subdivision creates the vertex buffer data

    		subdivide( detail );

    		// all vertices should lie on a conceptual sphere with a given radius

    		applyRadius( radius );

    		// finally, create the uv data

    		generateUVs();

    		// build non-indexed geometry

    		this.setAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );

    		if ( detail === 0 ) {

    			this.computeVertexNormals(); // flat normals

    		} else {

    			this.normalizeNormals(); // smooth normals

    		}

    		// helper functions

    		function subdivide( detail ) {

    			const a = new Vector3();
    			const b = new Vector3();
    			const c = new Vector3();

    			// iterate over all faces and apply a subdivison with the given detail value

    			for ( let i = 0; i < indices.length; i += 3 ) {

    				// get the vertices of the face

    				getVertexByIndex( indices[ i + 0 ], a );
    				getVertexByIndex( indices[ i + 1 ], b );
    				getVertexByIndex( indices[ i + 2 ], c );

    				// perform subdivision

    				subdivideFace( a, b, c, detail );

    			}

    		}

    		function subdivideFace( a, b, c, detail ) {

    			const cols = detail + 1;

    			// we use this multidimensional array as a data structure for creating the subdivision

    			const v = [];

    			// construct all of the vertices for this subdivision

    			for ( let i = 0; i <= cols; i ++ ) {

    				v[ i ] = [];

    				const aj = a.clone().lerp( c, i / cols );
    				const bj = b.clone().lerp( c, i / cols );

    				const rows = cols - i;

    				for ( let j = 0; j <= rows; j ++ ) {

    					if ( j === 0 && i === cols ) {

    						v[ i ][ j ] = aj;

    					} else {

    						v[ i ][ j ] = aj.clone().lerp( bj, j / rows );

    					}

    				}

    			}

    			// construct all of the faces

    			for ( let i = 0; i < cols; i ++ ) {

    				for ( let j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {

    					const k = Math.floor( j / 2 );

    					if ( j % 2 === 0 ) {

    						pushVertex( v[ i ][ k + 1 ] );
    						pushVertex( v[ i + 1 ][ k ] );
    						pushVertex( v[ i ][ k ] );

    					} else {

    						pushVertex( v[ i ][ k + 1 ] );
    						pushVertex( v[ i + 1 ][ k + 1 ] );
    						pushVertex( v[ i + 1 ][ k ] );

    					}

    				}

    			}

    		}

    		function applyRadius( radius ) {

    			const vertex = new Vector3();

    			// iterate over the entire buffer and apply the radius to each vertex

    			for ( let i = 0; i < vertexBuffer.length; i += 3 ) {

    				vertex.x = vertexBuffer[ i + 0 ];
    				vertex.y = vertexBuffer[ i + 1 ];
    				vertex.z = vertexBuffer[ i + 2 ];

    				vertex.normalize().multiplyScalar( radius );

    				vertexBuffer[ i + 0 ] = vertex.x;
    				vertexBuffer[ i + 1 ] = vertex.y;
    				vertexBuffer[ i + 2 ] = vertex.z;

    			}

    		}

    		function generateUVs() {

    			const vertex = new Vector3();

    			for ( let i = 0; i < vertexBuffer.length; i += 3 ) {

    				vertex.x = vertexBuffer[ i + 0 ];
    				vertex.y = vertexBuffer[ i + 1 ];
    				vertex.z = vertexBuffer[ i + 2 ];

    				const u = azimuth( vertex ) / 2 / Math.PI + 0.5;
    				const v = inclination( vertex ) / Math.PI + 0.5;
    				uvBuffer.push( u, 1 - v );

    			}

    			correctUVs();

    			correctSeam();

    		}

    		function correctSeam() {

    			// handle case when face straddles the seam, see #3269

    			for ( let i = 0; i < uvBuffer.length; i += 6 ) {

    				// uv data of a single face

    				const x0 = uvBuffer[ i + 0 ];
    				const x1 = uvBuffer[ i + 2 ];
    				const x2 = uvBuffer[ i + 4 ];

    				const max = Math.max( x0, x1, x2 );
    				const min = Math.min( x0, x1, x2 );

    				// 0.9 is somewhat arbitrary

    				if ( max > 0.9 && min < 0.1 ) {

    					if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;
    					if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;
    					if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;

    				}

    			}

    		}

    		function pushVertex( vertex ) {

    			vertexBuffer.push( vertex.x, vertex.y, vertex.z );

    		}

    		function getVertexByIndex( index, vertex ) {

    			const stride = index * 3;

    			vertex.x = vertices[ stride + 0 ];
    			vertex.y = vertices[ stride + 1 ];
    			vertex.z = vertices[ stride + 2 ];

    		}

    		function correctUVs() {

    			const a = new Vector3();
    			const b = new Vector3();
    			const c = new Vector3();

    			const centroid = new Vector3();

    			const uvA = new Vector2();
    			const uvB = new Vector2();
    			const uvC = new Vector2();

    			for ( let i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {

    				a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );
    				b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );
    				c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );

    				uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );
    				uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );
    				uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );

    				centroid.copy( a ).add( b ).add( c ).divideScalar( 3 );

    				const azi = azimuth( centroid );

    				correctUV( uvA, j + 0, a, azi );
    				correctUV( uvB, j + 2, b, azi );
    				correctUV( uvC, j + 4, c, azi );

    			}

    		}

    		function correctUV( uv, stride, vector, azimuth ) {

    			if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {

    				uvBuffer[ stride ] = uv.x - 1;

    			}

    			if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {

    				uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;

    			}

    		}

    		// Angle around the Y axis, counter-clockwise when looking from above.

    		function azimuth( vector ) {

    			return Math.atan2( vector.z, - vector.x );

    		}


    		// Angle above the XZ plane.

    		function inclination( vector ) {

    			return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );

    		}

    	}

    	static fromJSON( data ) {

    		return new PolyhedronGeometry( data.vertices, data.indices, data.radius, data.details );

    	}

    }

    class DodecahedronGeometry extends PolyhedronGeometry {

    	constructor( radius = 1, detail = 0 ) {

    		const t = ( 1 + Math.sqrt( 5 ) ) / 2;
    		const r = 1 / t;

    		const vertices = [

    			// (±1, ±1, ±1)
    			- 1, - 1, - 1,	- 1, - 1, 1,
    			- 1, 1, - 1, - 1, 1, 1,
    			1, - 1, - 1, 1, - 1, 1,
    			1, 1, - 1, 1, 1, 1,

    			// (0, ±1/φ, ±φ)
    			0, - r, - t, 0, - r, t,
    			0, r, - t, 0, r, t,

    			// (±1/φ, ±φ, 0)
    			- r, - t, 0, - r, t, 0,
    			r, - t, 0, r, t, 0,

    			// (±φ, 0, ±1/φ)
    			- t, 0, - r, t, 0, - r,
    			- t, 0, r, t, 0, r
    		];

    		const indices = [
    			3, 11, 7, 	3, 7, 15, 	3, 15, 13,
    			7, 19, 17, 	7, 17, 6, 	7, 6, 15,
    			17, 4, 8, 	17, 8, 10, 	17, 10, 6,
    			8, 0, 16, 	8, 16, 2, 	8, 2, 10,
    			0, 12, 1, 	0, 1, 18, 	0, 18, 16,
    			6, 10, 2, 	6, 2, 13, 	6, 13, 15,
    			2, 16, 18, 	2, 18, 3, 	2, 3, 13,
    			18, 1, 9, 	18, 9, 11, 	18, 11, 3,
    			4, 14, 12, 	4, 12, 0, 	4, 0, 8,
    			11, 9, 5, 	11, 5, 19, 	11, 19, 7,
    			19, 5, 14, 	19, 14, 4, 	19, 4, 17,
    			1, 12, 14, 	1, 14, 5, 	1, 5, 9
    		];

    		super( vertices, indices, radius, detail );

    		this.type = 'DodecahedronGeometry';

    		this.parameters = {
    			radius: radius,
    			detail: detail
    		};

    	}

    	static fromJSON( data ) {

    		return new DodecahedronGeometry( data.radius, data.detail );

    	}

    }

    const _v0 = /*@__PURE__*/ new Vector3();
    const _v1$1 = /*@__PURE__*/ new Vector3();
    const _normal = /*@__PURE__*/ new Vector3();
    const _triangle = /*@__PURE__*/ new Triangle();

    class EdgesGeometry extends BufferGeometry {

    	constructor( geometry = null, thresholdAngle = 1 ) {

    		super();

    		this.type = 'EdgesGeometry';

    		this.parameters = {
    			geometry: geometry,
    			thresholdAngle: thresholdAngle
    		};

    		if ( geometry !== null ) {

    			const precisionPoints = 4;
    			const precision = Math.pow( 10, precisionPoints );
    			const thresholdDot = Math.cos( DEG2RAD * thresholdAngle );

    			const indexAttr = geometry.getIndex();
    			const positionAttr = geometry.getAttribute( 'position' );
    			const indexCount = indexAttr ? indexAttr.count : positionAttr.count;

    			const indexArr = [ 0, 0, 0 ];
    			const vertKeys = [ 'a', 'b', 'c' ];
    			const hashes = new Array( 3 );

    			const edgeData = {};
    			const vertices = [];
    			for ( let i = 0; i < indexCount; i += 3 ) {

    				if ( indexAttr ) {

    					indexArr[ 0 ] = indexAttr.getX( i );
    					indexArr[ 1 ] = indexAttr.getX( i + 1 );
    					indexArr[ 2 ] = indexAttr.getX( i + 2 );

    				} else {

    					indexArr[ 0 ] = i;
    					indexArr[ 1 ] = i + 1;
    					indexArr[ 2 ] = i + 2;

    				}

    				const { a, b, c } = _triangle;
    				a.fromBufferAttribute( positionAttr, indexArr[ 0 ] );
    				b.fromBufferAttribute( positionAttr, indexArr[ 1 ] );
    				c.fromBufferAttribute( positionAttr, indexArr[ 2 ] );
    				_triangle.getNormal( _normal );

    				// create hashes for the edge from the vertices
    				hashes[ 0 ] = `${ Math.round( a.x * precision ) },${ Math.round( a.y * precision ) },${ Math.round( a.z * precision ) }`;
    				hashes[ 1 ] = `${ Math.round( b.x * precision ) },${ Math.round( b.y * precision ) },${ Math.round( b.z * precision ) }`;
    				hashes[ 2 ] = `${ Math.round( c.x * precision ) },${ Math.round( c.y * precision ) },${ Math.round( c.z * precision ) }`;

    				// skip degenerate triangles
    				if ( hashes[ 0 ] === hashes[ 1 ] || hashes[ 1 ] === hashes[ 2 ] || hashes[ 2 ] === hashes[ 0 ] ) {

    					continue;

    				}

    				// iterate over every edge
    				for ( let j = 0; j < 3; j ++ ) {

    					// get the first and next vertex making up the edge
    					const jNext = ( j + 1 ) % 3;
    					const vecHash0 = hashes[ j ];
    					const vecHash1 = hashes[ jNext ];
    					const v0 = _triangle[ vertKeys[ j ] ];
    					const v1 = _triangle[ vertKeys[ jNext ] ];

    					const hash = `${ vecHash0 }_${ vecHash1 }`;
    					const reverseHash = `${ vecHash1 }_${ vecHash0 }`;

    					if ( reverseHash in edgeData && edgeData[ reverseHash ] ) {

    						// if we found a sibling edge add it into the vertex array if
    						// it meets the angle threshold and delete the edge from the map.
    						if ( _normal.dot( edgeData[ reverseHash ].normal ) <= thresholdDot ) {

    							vertices.push( v0.x, v0.y, v0.z );
    							vertices.push( v1.x, v1.y, v1.z );

    						}

    						edgeData[ reverseHash ] = null;

    					} else if ( ! ( hash in edgeData ) ) {

    						// if we've already got an edge here then skip adding a new one
    						edgeData[ hash ] = {

    							index0: indexArr[ j ],
    							index1: indexArr[ jNext ],
    							normal: _normal.clone(),

    						};

    					}

    				}

    			}

    			// iterate over all remaining, unmatched edges and add them to the vertex array
    			for ( const key in edgeData ) {

    				if ( edgeData[ key ] ) {

    					const { index0, index1 } = edgeData[ key ];
    					_v0.fromBufferAttribute( positionAttr, index0 );
    					_v1$1.fromBufferAttribute( positionAttr, index1 );

    					vertices.push( _v0.x, _v0.y, _v0.z );
    					vertices.push( _v1$1.x, _v1$1.y, _v1$1.z );

    				}

    			}

    			this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );

    		}

    	}

    }

    class Shape extends Path {

    	constructor( points ) {

    		super( points );

    		this.uuid = generateUUID();

    		this.type = 'Shape';

    		this.holes = [];

    	}

    	getPointsHoles( divisions ) {

    		const holesPts = [];

    		for ( let i = 0, l = this.holes.length; i < l; i ++ ) {

    			holesPts[ i ] = this.holes[ i ].getPoints( divisions );

    		}

    		return holesPts;

    	}

    	// get points of shape and holes (keypoints based on segments parameter)

    	extractPoints( divisions ) {

    		return {

    			shape: this.getPoints( divisions ),
    			holes: this.getPointsHoles( divisions )

    		};

    	}

    	copy( source ) {

    		super.copy( source );

    		this.holes = [];

    		for ( let i = 0, l = source.holes.length; i < l; i ++ ) {

    			const hole = source.holes[ i ];

    			this.holes.push( hole.clone() );

    		}

    		return this;

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.uuid = this.uuid;
    		data.holes = [];

    		for ( let i = 0, l = this.holes.length; i < l; i ++ ) {

    			const hole = this.holes[ i ];
    			data.holes.push( hole.toJSON() );

    		}

    		return data;

    	}

    	fromJSON( json ) {

    		super.fromJSON( json );

    		this.uuid = json.uuid;
    		this.holes = [];

    		for ( let i = 0, l = json.holes.length; i < l; i ++ ) {

    			const hole = json.holes[ i ];
    			this.holes.push( new Path().fromJSON( hole ) );

    		}

    		return this;

    	}

    }

    /**
     * Port from https://github.com/mapbox/earcut (v2.2.2)
     */

    const Earcut = {

    	triangulate: function ( data, holeIndices, dim = 2 ) {

    		const hasHoles = holeIndices && holeIndices.length;
    		const outerLen = hasHoles ? holeIndices[ 0 ] * dim : data.length;
    		let outerNode = linkedList( data, 0, outerLen, dim, true );
    		const triangles = [];

    		if ( ! outerNode || outerNode.next === outerNode.prev ) return triangles;

    		let minX, minY, maxX, maxY, x, y, invSize;

    		if ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim );

    		// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
    		if ( data.length > 80 * dim ) {

    			minX = maxX = data[ 0 ];
    			minY = maxY = data[ 1 ];

    			for ( let i = dim; i < outerLen; i += dim ) {

    				x = data[ i ];
    				y = data[ i + 1 ];
    				if ( x < minX ) minX = x;
    				if ( y < minY ) minY = y;
    				if ( x > maxX ) maxX = x;
    				if ( y > maxY ) maxY = y;

    			}

    			// minX, minY and invSize are later used to transform coords into integers for z-order calculation
    			invSize = Math.max( maxX - minX, maxY - minY );
    			invSize = invSize !== 0 ? 1 / invSize : 0;

    		}

    		earcutLinked( outerNode, triangles, dim, minX, minY, invSize );

    		return triangles;

    	}

    };

    // create a circular doubly linked list from polygon points in the specified winding order
    function linkedList( data, start, end, dim, clockwise ) {

    	let i, last;

    	if ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) {

    		for ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );

    	} else {

    		for ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );

    	}

    	if ( last && equals( last, last.next ) ) {

    		removeNode( last );
    		last = last.next;

    	}

    	return last;

    }

    // eliminate colinear or duplicate points
    function filterPoints( start, end ) {

    	if ( ! start ) return start;
    	if ( ! end ) end = start;

    	let p = start,
    		again;
    	do {

    		again = false;

    		if ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) {

    			removeNode( p );
    			p = end = p.prev;
    			if ( p === p.next ) break;
    			again = true;

    		} else {

    			p = p.next;

    		}

    	} while ( again || p !== end );

    	return end;

    }

    // main ear slicing loop which triangulates a polygon (given as a linked list)
    function earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) {

    	if ( ! ear ) return;

    	// interlink polygon nodes in z-order
    	if ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize );

    	let stop = ear,
    		prev, next;

    	// iterate through ears, slicing them one by one
    	while ( ear.prev !== ear.next ) {

    		prev = ear.prev;
    		next = ear.next;

    		if ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) {

    			// cut off the triangle
    			triangles.push( prev.i / dim );
    			triangles.push( ear.i / dim );
    			triangles.push( next.i / dim );

    			removeNode( ear );

    			// skipping the next vertex leads to less sliver triangles
    			ear = next.next;
    			stop = next.next;

    			continue;

    		}

    		ear = next;

    		// if we looped through the whole remaining polygon and can't find any more ears
    		if ( ear === stop ) {

    			// try filtering points and slicing again
    			if ( ! pass ) {

    				earcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 );

    				// if this didn't work, try curing all small self-intersections locally

    			} else if ( pass === 1 ) {

    				ear = cureLocalIntersections( filterPoints( ear ), triangles, dim );
    				earcutLinked( ear, triangles, dim, minX, minY, invSize, 2 );

    				// as a last resort, try splitting the remaining polygon into two

    			} else if ( pass === 2 ) {

    				splitEarcut( ear, triangles, dim, minX, minY, invSize );

    			}

    			break;

    		}

    	}

    }

    // check whether a polygon node forms a valid ear with adjacent nodes
    function isEar( ear ) {

    	const a = ear.prev,
    		b = ear,
    		c = ear.next;

    	if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear

    	// now make sure we don't have other points inside the potential ear
    	let p = ear.next.next;

    	while ( p !== ear.prev ) {

    		if ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
    			area( p.prev, p, p.next ) >= 0 ) return false;
    		p = p.next;

    	}

    	return true;

    }

    function isEarHashed( ear, minX, minY, invSize ) {

    	const a = ear.prev,
    		b = ear,
    		c = ear.next;

    	if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear

    	// triangle bbox; min & max are calculated like this for speed
    	const minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ),
    		minTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ),
    		maxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ),
    		maxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y );

    	// z-order range for the current triangle bbox;
    	const minZ = zOrder( minTX, minTY, minX, minY, invSize ),
    		maxZ = zOrder( maxTX, maxTY, minX, minY, invSize );

    	let p = ear.prevZ,
    		n = ear.nextZ;

    	// look for points inside the triangle in both directions
    	while ( p && p.z >= minZ && n && n.z <= maxZ ) {

    		if ( p !== ear.prev && p !== ear.next &&
    			pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
    			area( p.prev, p, p.next ) >= 0 ) return false;
    		p = p.prevZ;

    		if ( n !== ear.prev && n !== ear.next &&
    			pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y ) &&
    			area( n.prev, n, n.next ) >= 0 ) return false;
    		n = n.nextZ;

    	}

    	// look for remaining points in decreasing z-order
    	while ( p && p.z >= minZ ) {

    		if ( p !== ear.prev && p !== ear.next &&
    			pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
    			area( p.prev, p, p.next ) >= 0 ) return false;
    		p = p.prevZ;

    	}

    	// look for remaining points in increasing z-order
    	while ( n && n.z <= maxZ ) {

    		if ( n !== ear.prev && n !== ear.next &&
    			pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y ) &&
    			area( n.prev, n, n.next ) >= 0 ) return false;
    		n = n.nextZ;

    	}

    	return true;

    }

    // go through all polygon nodes and cure small local self-intersections
    function cureLocalIntersections( start, triangles, dim ) {

    	let p = start;
    	do {

    		const a = p.prev,
    			b = p.next.next;

    		if ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) {

    			triangles.push( a.i / dim );
    			triangles.push( p.i / dim );
    			triangles.push( b.i / dim );

    			// remove two nodes involved
    			removeNode( p );
    			removeNode( p.next );

    			p = start = b;

    		}

    		p = p.next;

    	} while ( p !== start );

    	return filterPoints( p );

    }

    // try splitting polygon into two and triangulate them independently
    function splitEarcut( start, triangles, dim, minX, minY, invSize ) {

    	// look for a valid diagonal that divides the polygon into two
    	let a = start;
    	do {

    		let b = a.next.next;
    		while ( b !== a.prev ) {

    			if ( a.i !== b.i && isValidDiagonal( a, b ) ) {

    				// split the polygon in two by the diagonal
    				let c = splitPolygon( a, b );

    				// filter colinear points around the cuts
    				a = filterPoints( a, a.next );
    				c = filterPoints( c, c.next );

    				// run earcut on each half
    				earcutLinked( a, triangles, dim, minX, minY, invSize );
    				earcutLinked( c, triangles, dim, minX, minY, invSize );
    				return;

    			}

    			b = b.next;

    		}

    		a = a.next;

    	} while ( a !== start );

    }

    // link every hole into the outer loop, producing a single-ring polygon without holes
    function eliminateHoles( data, holeIndices, outerNode, dim ) {

    	const queue = [];
    	let i, len, start, end, list;

    	for ( i = 0, len = holeIndices.length; i < len; i ++ ) {

    		start = holeIndices[ i ] * dim;
    		end = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length;
    		list = linkedList( data, start, end, dim, false );
    		if ( list === list.next ) list.steiner = true;
    		queue.push( getLeftmost( list ) );

    	}

    	queue.sort( compareX );

    	// process holes from left to right
    	for ( i = 0; i < queue.length; i ++ ) {

    		eliminateHole( queue[ i ], outerNode );
    		outerNode = filterPoints( outerNode, outerNode.next );

    	}

    	return outerNode;

    }

    function compareX( a, b ) {

    	return a.x - b.x;

    }

    // find a bridge between vertices that connects hole with an outer ring and link it
    function eliminateHole( hole, outerNode ) {

    	outerNode = findHoleBridge( hole, outerNode );
    	if ( outerNode ) {

    		const b = splitPolygon( outerNode, hole );

    		// filter collinear points around the cuts
    		filterPoints( outerNode, outerNode.next );
    		filterPoints( b, b.next );

    	}

    }

    // David Eberly's algorithm for finding a bridge between hole and outer polygon
    function findHoleBridge( hole, outerNode ) {

    	let p = outerNode;
    	const hx = hole.x;
    	const hy = hole.y;
    	let qx = - Infinity, m;

    	// find a segment intersected by a ray from the hole's leftmost point to the left;
    	// segment's endpoint with lesser x will be potential connection point
    	do {

    		if ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) {

    			const x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y );
    			if ( x <= hx && x > qx ) {

    				qx = x;
    				if ( x === hx ) {

    					if ( hy === p.y ) return p;
    					if ( hy === p.next.y ) return p.next;

    				}

    				m = p.x < p.next.x ? p : p.next;

    			}

    		}

    		p = p.next;

    	} while ( p !== outerNode );

    	if ( ! m ) return null;

    	if ( hx === qx ) return m; // hole touches outer segment; pick leftmost endpoint

    	// look for points inside the triangle of hole point, segment intersection and endpoint;
    	// if there are no points found, we have a valid connection;
    	// otherwise choose the point of the minimum angle with the ray as connection point

    	const stop = m,
    		mx = m.x,
    		my = m.y;
    	let tanMin = Infinity, tan;

    	p = m;

    	do {

    		if ( hx >= p.x && p.x >= mx && hx !== p.x &&
    				pointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) {

    			tan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential

    			if ( locallyInside( p, hole ) && ( tan < tanMin || ( tan === tanMin && ( p.x > m.x || ( p.x === m.x && sectorContainsSector( m, p ) ) ) ) ) ) {

    				m = p;
    				tanMin = tan;

    			}

    		}

    		p = p.next;

    	} while ( p !== stop );

    	return m;

    }

    // whether sector in vertex m contains sector in vertex p in the same coordinates
    function sectorContainsSector( m, p ) {

    	return area( m.prev, m, p.prev ) < 0 && area( p.next, m, m.next ) < 0;

    }

    // interlink polygon nodes in z-order
    function indexCurve( start, minX, minY, invSize ) {

    	let p = start;
    	do {

    		if ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize );
    		p.prevZ = p.prev;
    		p.nextZ = p.next;
    		p = p.next;

    	} while ( p !== start );

    	p.prevZ.nextZ = null;
    	p.prevZ = null;

    	sortLinked( p );

    }

    // Simon Tatham's linked list merge sort algorithm
    // http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
    function sortLinked( list ) {

    	let i, p, q, e, tail, numMerges, pSize, qSize,
    		inSize = 1;

    	do {

    		p = list;
    		list = null;
    		tail = null;
    		numMerges = 0;

    		while ( p ) {

    			numMerges ++;
    			q = p;
    			pSize = 0;
    			for ( i = 0; i < inSize; i ++ ) {

    				pSize ++;
    				q = q.nextZ;
    				if ( ! q ) break;

    			}

    			qSize = inSize;

    			while ( pSize > 0 || ( qSize > 0 && q ) ) {

    				if ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) {

    					e = p;
    					p = p.nextZ;
    					pSize --;

    				} else {

    					e = q;
    					q = q.nextZ;
    					qSize --;

    				}

    				if ( tail ) tail.nextZ = e;
    				else list = e;

    				e.prevZ = tail;
    				tail = e;

    			}

    			p = q;

    		}

    		tail.nextZ = null;
    		inSize *= 2;

    	} while ( numMerges > 1 );

    	return list;

    }

    // z-order of a point given coords and inverse of the longer side of data bbox
    function zOrder( x, y, minX, minY, invSize ) {

    	// coords are transformed into non-negative 15-bit integer range
    	x = 32767 * ( x - minX ) * invSize;
    	y = 32767 * ( y - minY ) * invSize;

    	x = ( x | ( x << 8 ) ) & 0x00FF00FF;
    	x = ( x | ( x << 4 ) ) & 0x0F0F0F0F;
    	x = ( x | ( x << 2 ) ) & 0x33333333;
    	x = ( x | ( x << 1 ) ) & 0x55555555;

    	y = ( y | ( y << 8 ) ) & 0x00FF00FF;
    	y = ( y | ( y << 4 ) ) & 0x0F0F0F0F;
    	y = ( y | ( y << 2 ) ) & 0x33333333;
    	y = ( y | ( y << 1 ) ) & 0x55555555;

    	return x | ( y << 1 );

    }

    // find the leftmost node of a polygon ring
    function getLeftmost( start ) {

    	let p = start,
    		leftmost = start;
    	do {

    		if ( p.x < leftmost.x || ( p.x === leftmost.x && p.y < leftmost.y ) ) leftmost = p;
    		p = p.next;

    	} while ( p !== start );

    	return leftmost;

    }

    // check if a point lies within a convex triangle
    function pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) {

    	return ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 &&
    			( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 &&
    			( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0;

    }

    // check if a diagonal between two polygon nodes is valid (lies in polygon interior)
    function isValidDiagonal( a, b ) {

    	return a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) && // doesn't intersect other edges
    		( locallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b ) && // locally visible
    		( area( a.prev, a, b.prev ) || area( a, b.prev, b ) ) || // does not create opposite-facing sectors
    		equals( a, b ) && area( a.prev, a, a.next ) > 0 && area( b.prev, b, b.next ) > 0 ); // special zero-length case

    }

    // signed area of a triangle
    function area( p, q, r ) {

    	return ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y );

    }

    // check if two points are equal
    function equals( p1, p2 ) {

    	return p1.x === p2.x && p1.y === p2.y;

    }

    // check if two segments intersect
    function intersects( p1, q1, p2, q2 ) {

    	const o1 = sign( area( p1, q1, p2 ) );
    	const o2 = sign( area( p1, q1, q2 ) );
    	const o3 = sign( area( p2, q2, p1 ) );
    	const o4 = sign( area( p2, q2, q1 ) );

    	if ( o1 !== o2 && o3 !== o4 ) return true; // general case

    	if ( o1 === 0 && onSegment( p1, p2, q1 ) ) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1
    	if ( o2 === 0 && onSegment( p1, q2, q1 ) ) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1
    	if ( o3 === 0 && onSegment( p2, p1, q2 ) ) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2
    	if ( o4 === 0 && onSegment( p2, q1, q2 ) ) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2

    	return false;

    }

    // for collinear points p, q, r, check if point q lies on segment pr
    function onSegment( p, q, r ) {

    	return q.x <= Math.max( p.x, r.x ) && q.x >= Math.min( p.x, r.x ) && q.y <= Math.max( p.y, r.y ) && q.y >= Math.min( p.y, r.y );

    }

    function sign( num ) {

    	return num > 0 ? 1 : num < 0 ? - 1 : 0;

    }

    // check if a polygon diagonal intersects any polygon segments
    function intersectsPolygon( a, b ) {

    	let p = a;
    	do {

    		if ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&
    				intersects( p, p.next, a, b ) ) return true;
    		p = p.next;

    	} while ( p !== a );

    	return false;

    }

    // check if a polygon diagonal is locally inside the polygon
    function locallyInside( a, b ) {

    	return area( a.prev, a, a.next ) < 0 ?
    		area( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 :
    		area( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0;

    }

    // check if the middle point of a polygon diagonal is inside the polygon
    function middleInside( a, b ) {

    	let p = a,
    		inside = false;
    	const px = ( a.x + b.x ) / 2,
    		py = ( a.y + b.y ) / 2;
    	do {

    		if ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y &&
    				( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) )
    			inside = ! inside;
    		p = p.next;

    	} while ( p !== a );

    	return inside;

    }

    // link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
    // if one belongs to the outer ring and another to a hole, it merges it into a single ring
    function splitPolygon( a, b ) {

    	const a2 = new Node( a.i, a.x, a.y ),
    		b2 = new Node( b.i, b.x, b.y ),
    		an = a.next,
    		bp = b.prev;

    	a.next = b;
    	b.prev = a;

    	a2.next = an;
    	an.prev = a2;

    	b2.next = a2;
    	a2.prev = b2;

    	bp.next = b2;
    	b2.prev = bp;

    	return b2;

    }

    // create a node and optionally link it with previous one (in a circular doubly linked list)
    function insertNode( i, x, y, last ) {

    	const p = new Node( i, x, y );

    	if ( ! last ) {

    		p.prev = p;
    		p.next = p;

    	} else {

    		p.next = last.next;
    		p.prev = last;
    		last.next.prev = p;
    		last.next = p;

    	}

    	return p;

    }

    function removeNode( p ) {

    	p.next.prev = p.prev;
    	p.prev.next = p.next;

    	if ( p.prevZ ) p.prevZ.nextZ = p.nextZ;
    	if ( p.nextZ ) p.nextZ.prevZ = p.prevZ;

    }

    function Node( i, x, y ) {

    	// vertex index in coordinates array
    	this.i = i;

    	// vertex coordinates
    	this.x = x;
    	this.y = y;

    	// previous and next vertex nodes in a polygon ring
    	this.prev = null;
    	this.next = null;

    	// z-order curve value
    	this.z = null;

    	// previous and next nodes in z-order
    	this.prevZ = null;
    	this.nextZ = null;

    	// indicates whether this is a steiner point
    	this.steiner = false;

    }

    function signedArea( data, start, end, dim ) {

    	let sum = 0;
    	for ( let i = start, j = end - dim; i < end; i += dim ) {

    		sum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] );
    		j = i;

    	}

    	return sum;

    }

    class ShapeUtils {

    	// calculate area of the contour polygon

    	static area( contour ) {

    		const n = contour.length;
    		let a = 0.0;

    		for ( let p = n - 1, q = 0; q < n; p = q ++ ) {

    			a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;

    		}

    		return a * 0.5;

    	}

    	static isClockWise( pts ) {

    		return ShapeUtils.area( pts ) < 0;

    	}

    	static triangulateShape( contour, holes ) {

    		const vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
    		const holeIndices = []; // array of hole indices
    		const faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]

    		removeDupEndPts( contour );
    		addContour( vertices, contour );

    		//

    		let holeIndex = contour.length;

    		holes.forEach( removeDupEndPts );

    		for ( let i = 0; i < holes.length; i ++ ) {

    			holeIndices.push( holeIndex );
    			holeIndex += holes[ i ].length;
    			addContour( vertices, holes[ i ] );

    		}

    		//

    		const triangles = Earcut.triangulate( vertices, holeIndices );

    		//

    		for ( let i = 0; i < triangles.length; i += 3 ) {

    			faces.push( triangles.slice( i, i + 3 ) );

    		}

    		return faces;

    	}

    }

    function removeDupEndPts( points ) {

    	const l = points.length;

    	if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {

    		points.pop();

    	}

    }

    function addContour( vertices, contour ) {

    	for ( let i = 0; i < contour.length; i ++ ) {

    		vertices.push( contour[ i ].x );
    		vertices.push( contour[ i ].y );

    	}

    }

    /**
     * Creates extruded geometry from a path shape.
     *
     * parameters = {
     *
     *  curveSegments: <int>, // number of points on the curves
     *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
     *  depth: <float>, // Depth to extrude the shape
     *
     *  bevelEnabled: <bool>, // turn on bevel
     *  bevelThickness: <float>, // how deep into the original shape bevel goes
     *  bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
     *  bevelOffset: <float>, // how far from shape outline does bevel start
     *  bevelSegments: <int>, // number of bevel layers
     *
     *  extrudePath: <THREE.Curve> // curve to extrude shape along
     *
     *  UVGenerator: <Object> // object that provides UV generator functions
     *
     * }
     */

    class ExtrudeGeometry extends BufferGeometry {

    	constructor( shapes = new Shape( [ new Vector2( 0.5, 0.5 ), new Vector2( - 0.5, 0.5 ), new Vector2( - 0.5, - 0.5 ), new Vector2( 0.5, - 0.5 ) ] ), options = {} ) {

    		super();

    		this.type = 'ExtrudeGeometry';

    		this.parameters = {
    			shapes: shapes,
    			options: options
    		};

    		shapes = Array.isArray( shapes ) ? shapes : [ shapes ];

    		const scope = this;

    		const verticesArray = [];
    		const uvArray = [];

    		for ( let i = 0, l = shapes.length; i < l; i ++ ) {

    			const shape = shapes[ i ];
    			addShape( shape );

    		}

    		// build geometry

    		this.setAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) );

    		this.computeVertexNormals();

    		// functions

    		function addShape( shape ) {

    			const placeholder = [];

    			// options

    			const curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
    			const steps = options.steps !== undefined ? options.steps : 1;
    			const depth = options.depth !== undefined ? options.depth : 1;

    			let bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;
    			let bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 0.2;
    			let bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 0.1;
    			let bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0;
    			let bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;

    			const extrudePath = options.extrudePath;

    			const uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator;

    			//

    			let extrudePts, extrudeByPath = false;
    			let splineTube, binormal, normal, position2;

    			if ( extrudePath ) {

    				extrudePts = extrudePath.getSpacedPoints( steps );

    				extrudeByPath = true;
    				bevelEnabled = false; // bevels not supported for path extrusion

    				// SETUP TNB variables

    				// TODO1 - have a .isClosed in spline?

    				splineTube = extrudePath.computeFrenetFrames( steps, false );

    				// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);

    				binormal = new Vector3();
    				normal = new Vector3();
    				position2 = new Vector3();

    			}

    			// Safeguards if bevels are not enabled

    			if ( ! bevelEnabled ) {

    				bevelSegments = 0;
    				bevelThickness = 0;
    				bevelSize = 0;
    				bevelOffset = 0;

    			}

    			// Variables initialization

    			const shapePoints = shape.extractPoints( curveSegments );

    			let vertices = shapePoints.shape;
    			const holes = shapePoints.holes;

    			const reverse = ! ShapeUtils.isClockWise( vertices );

    			if ( reverse ) {

    				vertices = vertices.reverse();

    				// Maybe we should also check if holes are in the opposite direction, just to be safe ...

    				for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

    					const ahole = holes[ h ];

    					if ( ShapeUtils.isClockWise( ahole ) ) {

    						holes[ h ] = ahole.reverse();

    					}

    				}

    			}


    			const faces = ShapeUtils.triangulateShape( vertices, holes );

    			/* Vertices */

    			const contour = vertices; // vertices has all points but contour has only points of circumference

    			for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

    				const ahole = holes[ h ];

    				vertices = vertices.concat( ahole );

    			}


    			function scalePt2( pt, vec, size ) {

    				if ( ! vec ) console.error( 'THREE.ExtrudeGeometry: vec does not exist' );

    				return vec.clone().multiplyScalar( size ).add( pt );

    			}

    			const vlen = vertices.length, flen = faces.length;


    			// Find directions for point movement


    			function getBevelVec( inPt, inPrev, inNext ) {

    				// computes for inPt the corresponding point inPt' on a new contour
    				//   shifted by 1 unit (length of normalized vector) to the left
    				// if we walk along contour clockwise, this new contour is outside the old one
    				//
    				// inPt' is the intersection of the two lines parallel to the two
    				//  adjacent edges of inPt at a distance of 1 unit on the left side.

    				let v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt

    				// good reading for geometry algorithms (here: line-line intersection)
    				// http://geomalgorithms.com/a05-_intersect-1.html

    				const v_prev_x = inPt.x - inPrev.x,
    					v_prev_y = inPt.y - inPrev.y;
    				const v_next_x = inNext.x - inPt.x,
    					v_next_y = inNext.y - inPt.y;

    				const v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );

    				// check for collinear edges
    				const collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );

    				if ( Math.abs( collinear0 ) > Number.EPSILON ) {

    					// not collinear

    					// length of vectors for normalizing

    					const v_prev_len = Math.sqrt( v_prev_lensq );
    					const v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );

    					// shift adjacent points by unit vectors to the left

    					const ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
    					const ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );

    					const ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
    					const ptNextShift_y = ( inNext.y + v_next_x / v_next_len );

    					// scaling factor for v_prev to intersection point

    					const sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
    							( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /
    						( v_prev_x * v_next_y - v_prev_y * v_next_x );

    					// vector from inPt to intersection point

    					v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
    					v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );

    					// Don't normalize!, otherwise sharp corners become ugly
    					//  but prevent crazy spikes
    					const v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
    					if ( v_trans_lensq <= 2 ) {

    						return new Vector2( v_trans_x, v_trans_y );

    					} else {

    						shrink_by = Math.sqrt( v_trans_lensq / 2 );

    					}

    				} else {

    					// handle special case of collinear edges

    					let direction_eq = false; // assumes: opposite

    					if ( v_prev_x > Number.EPSILON ) {

    						if ( v_next_x > Number.EPSILON ) {

    							direction_eq = true;

    						}

    					} else {

    						if ( v_prev_x < - Number.EPSILON ) {

    							if ( v_next_x < - Number.EPSILON ) {

    								direction_eq = true;

    							}

    						} else {

    							if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {

    								direction_eq = true;

    							}

    						}

    					}

    					if ( direction_eq ) {

    						// console.log("Warning: lines are a straight sequence");
    						v_trans_x = - v_prev_y;
    						v_trans_y = v_prev_x;
    						shrink_by = Math.sqrt( v_prev_lensq );

    					} else {

    						// console.log("Warning: lines are a straight spike");
    						v_trans_x = v_prev_x;
    						v_trans_y = v_prev_y;
    						shrink_by = Math.sqrt( v_prev_lensq / 2 );

    					}

    				}

    				return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );

    			}


    			const contourMovements = [];

    			for ( let i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

    				if ( j === il ) j = 0;
    				if ( k === il ) k = 0;

    				//  (j)---(i)---(k)
    				// console.log('i,j,k', i, j , k)

    				contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );

    			}

    			const holesMovements = [];
    			let oneHoleMovements, verticesMovements = contourMovements.concat();

    			for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

    				const ahole = holes[ h ];

    				oneHoleMovements = [];

    				for ( let i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

    					if ( j === il ) j = 0;
    					if ( k === il ) k = 0;

    					//  (j)---(i)---(k)
    					oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );

    				}

    				holesMovements.push( oneHoleMovements );
    				verticesMovements = verticesMovements.concat( oneHoleMovements );

    			}


    			// Loop bevelSegments, 1 for the front, 1 for the back

    			for ( let b = 0; b < bevelSegments; b ++ ) {

    				//for ( b = bevelSegments; b > 0; b -- ) {

    				const t = b / bevelSegments;
    				const z = bevelThickness * Math.cos( t * Math.PI / 2 );
    				const bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset;

    				// contract shape

    				for ( let i = 0, il = contour.length; i < il; i ++ ) {

    					const vert = scalePt2( contour[ i ], contourMovements[ i ], bs );

    					v( vert.x, vert.y, - z );

    				}

    				// expand holes

    				for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

    					const ahole = holes[ h ];
    					oneHoleMovements = holesMovements[ h ];

    					for ( let i = 0, il = ahole.length; i < il; i ++ ) {

    						const vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

    						v( vert.x, vert.y, - z );

    					}

    				}

    			}

    			const bs = bevelSize + bevelOffset;

    			// Back facing vertices

    			for ( let i = 0; i < vlen; i ++ ) {

    				const vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

    				if ( ! extrudeByPath ) {

    					v( vert.x, vert.y, 0 );

    				} else {

    					// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );

    					normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
    					binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );

    					position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );

    					v( position2.x, position2.y, position2.z );

    				}

    			}

    			// Add stepped vertices...
    			// Including front facing vertices

    			for ( let s = 1; s <= steps; s ++ ) {

    				for ( let i = 0; i < vlen; i ++ ) {

    					const vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

    					if ( ! extrudeByPath ) {

    						v( vert.x, vert.y, depth / steps * s );

    					} else {

    						// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );

    						normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
    						binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );

    						position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );

    						v( position2.x, position2.y, position2.z );

    					}

    				}

    			}


    			// Add bevel segments planes

    			//for ( b = 1; b <= bevelSegments; b ++ ) {
    			for ( let b = bevelSegments - 1; b >= 0; b -- ) {

    				const t = b / bevelSegments;
    				const z = bevelThickness * Math.cos( t * Math.PI / 2 );
    				const bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset;

    				// contract shape

    				for ( let i = 0, il = contour.length; i < il; i ++ ) {

    					const vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
    					v( vert.x, vert.y, depth + z );

    				}

    				// expand holes

    				for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

    					const ahole = holes[ h ];
    					oneHoleMovements = holesMovements[ h ];

    					for ( let i = 0, il = ahole.length; i < il; i ++ ) {

    						const vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

    						if ( ! extrudeByPath ) {

    							v( vert.x, vert.y, depth + z );

    						} else {

    							v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );

    						}

    					}

    				}

    			}

    			/* Faces */

    			// Top and bottom faces

    			buildLidFaces();

    			// Sides faces

    			buildSideFaces();


    			/////  Internal functions

    			function buildLidFaces() {

    				const start = verticesArray.length / 3;

    				if ( bevelEnabled ) {

    					let layer = 0; // steps + 1
    					let offset = vlen * layer;

    					// Bottom faces

    					for ( let i = 0; i < flen; i ++ ) {

    						const face = faces[ i ];
    						f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );

    					}

    					layer = steps + bevelSegments * 2;
    					offset = vlen * layer;

    					// Top faces

    					for ( let i = 0; i < flen; i ++ ) {

    						const face = faces[ i ];
    						f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );

    					}

    				} else {

    					// Bottom faces

    					for ( let i = 0; i < flen; i ++ ) {

    						const face = faces[ i ];
    						f3( face[ 2 ], face[ 1 ], face[ 0 ] );

    					}

    					// Top faces

    					for ( let i = 0; i < flen; i ++ ) {

    						const face = faces[ i ];
    						f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );

    					}

    				}

    				scope.addGroup( start, verticesArray.length / 3 - start, 0 );

    			}

    			// Create faces for the z-sides of the shape

    			function buildSideFaces() {

    				const start = verticesArray.length / 3;
    				let layeroffset = 0;
    				sidewalls( contour, layeroffset );
    				layeroffset += contour.length;

    				for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

    					const ahole = holes[ h ];
    					sidewalls( ahole, layeroffset );

    					//, true
    					layeroffset += ahole.length;

    				}


    				scope.addGroup( start, verticesArray.length / 3 - start, 1 );


    			}

    			function sidewalls( contour, layeroffset ) {

    				let i = contour.length;

    				while ( -- i >= 0 ) {

    					const j = i;
    					let k = i - 1;
    					if ( k < 0 ) k = contour.length - 1;

    					//console.log('b', i,j, i-1, k,vertices.length);

    					for ( let s = 0, sl = ( steps + bevelSegments * 2 ); s < sl; s ++ ) {

    						const slen1 = vlen * s;
    						const slen2 = vlen * ( s + 1 );

    						const a = layeroffset + j + slen1,
    							b = layeroffset + k + slen1,
    							c = layeroffset + k + slen2,
    							d = layeroffset + j + slen2;

    						f4( a, b, c, d );

    					}

    				}

    			}

    			function v( x, y, z ) {

    				placeholder.push( x );
    				placeholder.push( y );
    				placeholder.push( z );

    			}


    			function f3( a, b, c ) {

    				addVertex( a );
    				addVertex( b );
    				addVertex( c );

    				const nextIndex = verticesArray.length / 3;
    				const uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );

    				addUV( uvs[ 0 ] );
    				addUV( uvs[ 1 ] );
    				addUV( uvs[ 2 ] );

    			}

    			function f4( a, b, c, d ) {

    				addVertex( a );
    				addVertex( b );
    				addVertex( d );

    				addVertex( b );
    				addVertex( c );
    				addVertex( d );


    				const nextIndex = verticesArray.length / 3;
    				const uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );

    				addUV( uvs[ 0 ] );
    				addUV( uvs[ 1 ] );
    				addUV( uvs[ 3 ] );

    				addUV( uvs[ 1 ] );
    				addUV( uvs[ 2 ] );
    				addUV( uvs[ 3 ] );

    			}

    			function addVertex( index ) {

    				verticesArray.push( placeholder[ index * 3 + 0 ] );
    				verticesArray.push( placeholder[ index * 3 + 1 ] );
    				verticesArray.push( placeholder[ index * 3 + 2 ] );

    			}


    			function addUV( vector2 ) {

    				uvArray.push( vector2.x );
    				uvArray.push( vector2.y );

    			}

    		}

    	}

    	toJSON() {

    		const data = super.toJSON();

    		const shapes = this.parameters.shapes;
    		const options = this.parameters.options;

    		return toJSON$1( shapes, options, data );

    	}

    	static fromJSON( data, shapes ) {

    		const geometryShapes = [];

    		for ( let j = 0, jl = data.shapes.length; j < jl; j ++ ) {

    			const shape = shapes[ data.shapes[ j ] ];

    			geometryShapes.push( shape );

    		}

    		const extrudePath = data.options.extrudePath;

    		if ( extrudePath !== undefined ) {

    			data.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath );

    		}

    		return new ExtrudeGeometry( geometryShapes, data.options );

    	}

    }

    const WorldUVGenerator = {

    	generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {

    		const a_x = vertices[ indexA * 3 ];
    		const a_y = vertices[ indexA * 3 + 1 ];
    		const b_x = vertices[ indexB * 3 ];
    		const b_y = vertices[ indexB * 3 + 1 ];
    		const c_x = vertices[ indexC * 3 ];
    		const c_y = vertices[ indexC * 3 + 1 ];

    		return [
    			new Vector2( a_x, a_y ),
    			new Vector2( b_x, b_y ),
    			new Vector2( c_x, c_y )
    		];

    	},

    	generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {

    		const a_x = vertices[ indexA * 3 ];
    		const a_y = vertices[ indexA * 3 + 1 ];
    		const a_z = vertices[ indexA * 3 + 2 ];
    		const b_x = vertices[ indexB * 3 ];
    		const b_y = vertices[ indexB * 3 + 1 ];
    		const b_z = vertices[ indexB * 3 + 2 ];
    		const c_x = vertices[ indexC * 3 ];
    		const c_y = vertices[ indexC * 3 + 1 ];
    		const c_z = vertices[ indexC * 3 + 2 ];
    		const d_x = vertices[ indexD * 3 ];
    		const d_y = vertices[ indexD * 3 + 1 ];
    		const d_z = vertices[ indexD * 3 + 2 ];

    		if ( Math.abs( a_y - b_y ) < Math.abs( a_x - b_x ) ) {

    			return [
    				new Vector2( a_x, 1 - a_z ),
    				new Vector2( b_x, 1 - b_z ),
    				new Vector2( c_x, 1 - c_z ),
    				new Vector2( d_x, 1 - d_z )
    			];

    		} else {

    			return [
    				new Vector2( a_y, 1 - a_z ),
    				new Vector2( b_y, 1 - b_z ),
    				new Vector2( c_y, 1 - c_z ),
    				new Vector2( d_y, 1 - d_z )
    			];

    		}

    	}

    };

    function toJSON$1( shapes, options, data ) {

    	data.shapes = [];

    	if ( Array.isArray( shapes ) ) {

    		for ( let i = 0, l = shapes.length; i < l; i ++ ) {

    			const shape = shapes[ i ];

    			data.shapes.push( shape.uuid );

    		}

    	} else {

    		data.shapes.push( shapes.uuid );

    	}

    	data.options = Object.assign( {}, options );

    	if ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON();

    	return data;

    }

    class IcosahedronGeometry extends PolyhedronGeometry {

    	constructor( radius = 1, detail = 0 ) {

    		const t = ( 1 + Math.sqrt( 5 ) ) / 2;

    		const vertices = [
    			- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
    			0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
    			t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
    		];

    		const indices = [
    			0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
    			1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
    			3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
    			4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
    		];

    		super( vertices, indices, radius, detail );

    		this.type = 'IcosahedronGeometry';

    		this.parameters = {
    			radius: radius,
    			detail: detail
    		};

    	}

    	static fromJSON( data ) {

    		return new IcosahedronGeometry( data.radius, data.detail );

    	}

    }

    class OctahedronGeometry extends PolyhedronGeometry {

    	constructor( radius = 1, detail = 0 ) {

    		const vertices = [
    			1, 0, 0, 	- 1, 0, 0,	0, 1, 0,
    			0, - 1, 0, 	0, 0, 1,	0, 0, - 1
    		];

    		const indices = [
    			0, 2, 4,	0, 4, 3,	0, 3, 5,
    			0, 5, 2,	1, 2, 5,	1, 5, 3,
    			1, 3, 4,	1, 4, 2
    		];

    		super( vertices, indices, radius, detail );

    		this.type = 'OctahedronGeometry';

    		this.parameters = {
    			radius: radius,
    			detail: detail
    		};

    	}

    	static fromJSON( data ) {

    		return new OctahedronGeometry( data.radius, data.detail );

    	}

    }

    class RingGeometry extends BufferGeometry {

    	constructor( innerRadius = 0.5, outerRadius = 1, thetaSegments = 8, phiSegments = 1, thetaStart = 0, thetaLength = Math.PI * 2 ) {

    		super();

    		this.type = 'RingGeometry';

    		this.parameters = {
    			innerRadius: innerRadius,
    			outerRadius: outerRadius,
    			thetaSegments: thetaSegments,
    			phiSegments: phiSegments,
    			thetaStart: thetaStart,
    			thetaLength: thetaLength
    		};

    		thetaSegments = Math.max( 3, thetaSegments );
    		phiSegments = Math.max( 1, phiSegments );

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		// some helper variables

    		let radius = innerRadius;
    		const radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
    		const vertex = new Vector3();
    		const uv = new Vector2();

    		// generate vertices, normals and uvs

    		for ( let j = 0; j <= phiSegments; j ++ ) {

    			for ( let i = 0; i <= thetaSegments; i ++ ) {

    				// values are generate from the inside of the ring to the outside

    				const segment = thetaStart + i / thetaSegments * thetaLength;

    				// vertex

    				vertex.x = radius * Math.cos( segment );
    				vertex.y = radius * Math.sin( segment );

    				vertices.push( vertex.x, vertex.y, vertex.z );

    				// normal

    				normals.push( 0, 0, 1 );

    				// uv

    				uv.x = ( vertex.x / outerRadius + 1 ) / 2;
    				uv.y = ( vertex.y / outerRadius + 1 ) / 2;

    				uvs.push( uv.x, uv.y );

    			}

    			// increase the radius for next row of vertices

    			radius += radiusStep;

    		}

    		// indices

    		for ( let j = 0; j < phiSegments; j ++ ) {

    			const thetaSegmentLevel = j * ( thetaSegments + 1 );

    			for ( let i = 0; i < thetaSegments; i ++ ) {

    				const segment = i + thetaSegmentLevel;

    				const a = segment;
    				const b = segment + thetaSegments + 1;
    				const c = segment + thetaSegments + 2;
    				const d = segment + 1;

    				// faces

    				indices.push( a, b, d );
    				indices.push( b, c, d );

    			}

    		}

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    	}

    	static fromJSON( data ) {

    		return new RingGeometry( data.innerRadius, data.outerRadius, data.thetaSegments, data.phiSegments, data.thetaStart, data.thetaLength );

    	}

    }

    class ShapeGeometry extends BufferGeometry {

    	constructor( shapes = new Shape( [ new Vector2( 0, 0.5 ), new Vector2( - 0.5, - 0.5 ), new Vector2( 0.5, - 0.5 ) ] ), curveSegments = 12 ) {

    		super();

    		this.type = 'ShapeGeometry';

    		this.parameters = {
    			shapes: shapes,
    			curveSegments: curveSegments
    		};

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		// helper variables

    		let groupStart = 0;
    		let groupCount = 0;

    		// allow single and array values for "shapes" parameter

    		if ( Array.isArray( shapes ) === false ) {

    			addShape( shapes );

    		} else {

    			for ( let i = 0; i < shapes.length; i ++ ) {

    				addShape( shapes[ i ] );

    				this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support

    				groupStart += groupCount;
    				groupCount = 0;

    			}

    		}

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );


    		// helper functions

    		function addShape( shape ) {

    			const indexOffset = vertices.length / 3;
    			const points = shape.extractPoints( curveSegments );

    			let shapeVertices = points.shape;
    			const shapeHoles = points.holes;

    			// check direction of vertices

    			if ( ShapeUtils.isClockWise( shapeVertices ) === false ) {

    				shapeVertices = shapeVertices.reverse();

    			}

    			for ( let i = 0, l = shapeHoles.length; i < l; i ++ ) {

    				const shapeHole = shapeHoles[ i ];

    				if ( ShapeUtils.isClockWise( shapeHole ) === true ) {

    					shapeHoles[ i ] = shapeHole.reverse();

    				}

    			}

    			const faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );

    			// join vertices of inner and outer paths to a single array

    			for ( let i = 0, l = shapeHoles.length; i < l; i ++ ) {

    				const shapeHole = shapeHoles[ i ];
    				shapeVertices = shapeVertices.concat( shapeHole );

    			}

    			// vertices, normals, uvs

    			for ( let i = 0, l = shapeVertices.length; i < l; i ++ ) {

    				const vertex = shapeVertices[ i ];

    				vertices.push( vertex.x, vertex.y, 0 );
    				normals.push( 0, 0, 1 );
    				uvs.push( vertex.x, vertex.y ); // world uvs

    			}

    			// incides

    			for ( let i = 0, l = faces.length; i < l; i ++ ) {

    				const face = faces[ i ];

    				const a = face[ 0 ] + indexOffset;
    				const b = face[ 1 ] + indexOffset;
    				const c = face[ 2 ] + indexOffset;

    				indices.push( a, b, c );
    				groupCount += 3;

    			}

    		}

    	}

    	toJSON() {

    		const data = super.toJSON();

    		const shapes = this.parameters.shapes;

    		return toJSON( shapes, data );

    	}

    	static fromJSON( data, shapes ) {

    		const geometryShapes = [];

    		for ( let j = 0, jl = data.shapes.length; j < jl; j ++ ) {

    			const shape = shapes[ data.shapes[ j ] ];

    			geometryShapes.push( shape );

    		}

    		return new ShapeGeometry( geometryShapes, data.curveSegments );

    	}

    }

    function toJSON( shapes, data ) {

    	data.shapes = [];

    	if ( Array.isArray( shapes ) ) {

    		for ( let i = 0, l = shapes.length; i < l; i ++ ) {

    			const shape = shapes[ i ];

    			data.shapes.push( shape.uuid );

    		}

    	} else {

    		data.shapes.push( shapes.uuid );

    	}

    	return data;

    }

    class SphereGeometry extends BufferGeometry {

    	constructor( radius = 1, widthSegments = 32, heightSegments = 16, phiStart = 0, phiLength = Math.PI * 2, thetaStart = 0, thetaLength = Math.PI ) {

    		super();

    		this.type = 'SphereGeometry';

    		this.parameters = {
    			radius: radius,
    			widthSegments: widthSegments,
    			heightSegments: heightSegments,
    			phiStart: phiStart,
    			phiLength: phiLength,
    			thetaStart: thetaStart,
    			thetaLength: thetaLength
    		};

    		widthSegments = Math.max( 3, Math.floor( widthSegments ) );
    		heightSegments = Math.max( 2, Math.floor( heightSegments ) );

    		const thetaEnd = Math.min( thetaStart + thetaLength, Math.PI );

    		let index = 0;
    		const grid = [];

    		const vertex = new Vector3();
    		const normal = new Vector3();

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		// generate vertices, normals and uvs

    		for ( let iy = 0; iy <= heightSegments; iy ++ ) {

    			const verticesRow = [];

    			const v = iy / heightSegments;

    			// special case for the poles

    			let uOffset = 0;

    			if ( iy == 0 && thetaStart == 0 ) {

    				uOffset = 0.5 / widthSegments;

    			} else if ( iy == heightSegments && thetaEnd == Math.PI ) {

    				uOffset = - 0.5 / widthSegments;

    			}

    			for ( let ix = 0; ix <= widthSegments; ix ++ ) {

    				const u = ix / widthSegments;

    				// vertex

    				vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
    				vertex.y = radius * Math.cos( thetaStart + v * thetaLength );
    				vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );

    				vertices.push( vertex.x, vertex.y, vertex.z );

    				// normal

    				normal.copy( vertex ).normalize();
    				normals.push( normal.x, normal.y, normal.z );

    				// uv

    				uvs.push( u + uOffset, 1 - v );

    				verticesRow.push( index ++ );

    			}

    			grid.push( verticesRow );

    		}

    		// indices

    		for ( let iy = 0; iy < heightSegments; iy ++ ) {

    			for ( let ix = 0; ix < widthSegments; ix ++ ) {

    				const a = grid[ iy ][ ix + 1 ];
    				const b = grid[ iy ][ ix ];
    				const c = grid[ iy + 1 ][ ix ];
    				const d = grid[ iy + 1 ][ ix + 1 ];

    				if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );
    				if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );

    			}

    		}

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    	}

    	static fromJSON( data ) {

    		return new SphereGeometry( data.radius, data.widthSegments, data.heightSegments, data.phiStart, data.phiLength, data.thetaStart, data.thetaLength );

    	}

    }

    class TetrahedronGeometry extends PolyhedronGeometry {

    	constructor( radius = 1, detail = 0 ) {

    		const vertices = [
    			1, 1, 1, 	- 1, - 1, 1, 	- 1, 1, - 1, 	1, - 1, - 1
    		];

    		const indices = [
    			2, 1, 0, 	0, 3, 2,	1, 3, 0,	2, 3, 1
    		];

    		super( vertices, indices, radius, detail );

    		this.type = 'TetrahedronGeometry';

    		this.parameters = {
    			radius: radius,
    			detail: detail
    		};

    	}

    	static fromJSON( data ) {

    		return new TetrahedronGeometry( data.radius, data.detail );

    	}

    }

    class TorusGeometry extends BufferGeometry {

    	constructor( radius = 1, tube = 0.4, radialSegments = 8, tubularSegments = 6, arc = Math.PI * 2 ) {

    		super();

    		this.type = 'TorusGeometry';

    		this.parameters = {
    			radius: radius,
    			tube: tube,
    			radialSegments: radialSegments,
    			tubularSegments: tubularSegments,
    			arc: arc
    		};

    		radialSegments = Math.floor( radialSegments );
    		tubularSegments = Math.floor( tubularSegments );

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		// helper variables

    		const center = new Vector3();
    		const vertex = new Vector3();
    		const normal = new Vector3();

    		// generate vertices, normals and uvs

    		for ( let j = 0; j <= radialSegments; j ++ ) {

    			for ( let i = 0; i <= tubularSegments; i ++ ) {

    				const u = i / tubularSegments * arc;
    				const v = j / radialSegments * Math.PI * 2;

    				// vertex

    				vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
    				vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
    				vertex.z = tube * Math.sin( v );

    				vertices.push( vertex.x, vertex.y, vertex.z );

    				// normal

    				center.x = radius * Math.cos( u );
    				center.y = radius * Math.sin( u );
    				normal.subVectors( vertex, center ).normalize();

    				normals.push( normal.x, normal.y, normal.z );

    				// uv

    				uvs.push( i / tubularSegments );
    				uvs.push( j / radialSegments );

    			}

    		}

    		// generate indices

    		for ( let j = 1; j <= radialSegments; j ++ ) {

    			for ( let i = 1; i <= tubularSegments; i ++ ) {

    				// indices

    				const a = ( tubularSegments + 1 ) * j + i - 1;
    				const b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
    				const c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
    				const d = ( tubularSegments + 1 ) * j + i;

    				// faces

    				indices.push( a, b, d );
    				indices.push( b, c, d );

    			}

    		}

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    	}

    	static fromJSON( data ) {

    		return new TorusGeometry( data.radius, data.tube, data.radialSegments, data.tubularSegments, data.arc );

    	}

    }

    class TorusKnotGeometry extends BufferGeometry {

    	constructor( radius = 1, tube = 0.4, tubularSegments = 64, radialSegments = 8, p = 2, q = 3 ) {

    		super();

    		this.type = 'TorusKnotGeometry';

    		this.parameters = {
    			radius: radius,
    			tube: tube,
    			tubularSegments: tubularSegments,
    			radialSegments: radialSegments,
    			p: p,
    			q: q
    		};

    		tubularSegments = Math.floor( tubularSegments );
    		radialSegments = Math.floor( radialSegments );

    		// buffers

    		const indices = [];
    		const vertices = [];
    		const normals = [];
    		const uvs = [];

    		// helper variables

    		const vertex = new Vector3();
    		const normal = new Vector3();

    		const P1 = new Vector3();
    		const P2 = new Vector3();

    		const B = new Vector3();
    		const T = new Vector3();
    		const N = new Vector3();

    		// generate vertices, normals and uvs

    		for ( let i = 0; i <= tubularSegments; ++ i ) {

    			// the radian "u" is used to calculate the position on the torus curve of the current tubular segment

    			const u = i / tubularSegments * p * Math.PI * 2;

    			// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
    			// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions

    			calculatePositionOnCurve( u, p, q, radius, P1 );
    			calculatePositionOnCurve( u + 0.01, p, q, radius, P2 );

    			// calculate orthonormal basis

    			T.subVectors( P2, P1 );
    			N.addVectors( P2, P1 );
    			B.crossVectors( T, N );
    			N.crossVectors( B, T );

    			// normalize B, N. T can be ignored, we don't use it

    			B.normalize();
    			N.normalize();

    			for ( let j = 0; j <= radialSegments; ++ j ) {

    				// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
    				// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.

    				const v = j / radialSegments * Math.PI * 2;
    				const cx = - tube * Math.cos( v );
    				const cy = tube * Math.sin( v );

    				// now calculate the final vertex position.
    				// first we orient the extrusion with our basis vectors, then we add it to the current position on the curve

    				vertex.x = P1.x + ( cx * N.x + cy * B.x );
    				vertex.y = P1.y + ( cx * N.y + cy * B.y );
    				vertex.z = P1.z + ( cx * N.z + cy * B.z );

    				vertices.push( vertex.x, vertex.y, vertex.z );

    				// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)

    				normal.subVectors( vertex, P1 ).normalize();

    				normals.push( normal.x, normal.y, normal.z );

    				// uv

    				uvs.push( i / tubularSegments );
    				uvs.push( j / radialSegments );

    			}

    		}

    		// generate indices

    		for ( let j = 1; j <= tubularSegments; j ++ ) {

    			for ( let i = 1; i <= radialSegments; i ++ ) {

    				// indices

    				const a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
    				const b = ( radialSegments + 1 ) * j + ( i - 1 );
    				const c = ( radialSegments + 1 ) * j + i;
    				const d = ( radialSegments + 1 ) * ( j - 1 ) + i;

    				// faces

    				indices.push( a, b, d );
    				indices.push( b, c, d );

    			}

    		}

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    		// this function calculates the current position on the torus curve

    		function calculatePositionOnCurve( u, p, q, radius, position ) {

    			const cu = Math.cos( u );
    			const su = Math.sin( u );
    			const quOverP = q / p * u;
    			const cs = Math.cos( quOverP );

    			position.x = radius * ( 2 + cs ) * 0.5 * cu;
    			position.y = radius * ( 2 + cs ) * su * 0.5;
    			position.z = radius * Math.sin( quOverP ) * 0.5;

    		}

    	}

    	static fromJSON( data ) {

    		return new TorusKnotGeometry( data.radius, data.tube, data.tubularSegments, data.radialSegments, data.p, data.q );

    	}

    }

    class TubeGeometry extends BufferGeometry {

    	constructor( path = new QuadraticBezierCurve3( new Vector3( - 1, - 1, 0 ), new Vector3( - 1, 1, 0 ), new Vector3( 1, 1, 0 ) ), tubularSegments = 64, radius = 1, radialSegments = 8, closed = false ) {

    		super();

    		this.type = 'TubeGeometry';

    		this.parameters = {
    			path: path,
    			tubularSegments: tubularSegments,
    			radius: radius,
    			radialSegments: radialSegments,
    			closed: closed
    		};

    		const frames = path.computeFrenetFrames( tubularSegments, closed );

    		// expose internals

    		this.tangents = frames.tangents;
    		this.normals = frames.normals;
    		this.binormals = frames.binormals;

    		// helper variables

    		const vertex = new Vector3();
    		const normal = new Vector3();
    		const uv = new Vector2();
    		let P = new Vector3();

    		// buffer

    		const vertices = [];
    		const normals = [];
    		const uvs = [];
    		const indices = [];

    		// create buffer data

    		generateBufferData();

    		// build geometry

    		this.setIndex( indices );
    		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
    		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

    		// functions

    		function generateBufferData() {

    			for ( let i = 0; i < tubularSegments; i ++ ) {

    				generateSegment( i );

    			}

    			// if the geometry is not closed, generate the last row of vertices and normals
    			// at the regular position on the given path
    			//
    			// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)

    			generateSegment( ( closed === false ) ? tubularSegments : 0 );

    			// uvs are generated in a separate function.
    			// this makes it easy compute correct values for closed geometries

    			generateUVs();

    			// finally create faces

    			generateIndices();

    		}

    		function generateSegment( i ) {

    			// we use getPointAt to sample evenly distributed points from the given path

    			P = path.getPointAt( i / tubularSegments, P );

    			// retrieve corresponding normal and binormal

    			const N = frames.normals[ i ];
    			const B = frames.binormals[ i ];

    			// generate normals and vertices for the current segment

    			for ( let j = 0; j <= radialSegments; j ++ ) {

    				const v = j / radialSegments * Math.PI * 2;

    				const sin = Math.sin( v );
    				const cos = - Math.cos( v );

    				// normal

    				normal.x = ( cos * N.x + sin * B.x );
    				normal.y = ( cos * N.y + sin * B.y );
    				normal.z = ( cos * N.z + sin * B.z );
    				normal.normalize();

    				normals.push( normal.x, normal.y, normal.z );

    				// vertex

    				vertex.x = P.x + radius * normal.x;
    				vertex.y = P.y + radius * normal.y;
    				vertex.z = P.z + radius * normal.z;

    				vertices.push( vertex.x, vertex.y, vertex.z );

    			}

    		}

    		function generateIndices() {

    			for ( let j = 1; j <= tubularSegments; j ++ ) {

    				for ( let i = 1; i <= radialSegments; i ++ ) {

    					const a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
    					const b = ( radialSegments + 1 ) * j + ( i - 1 );
    					const c = ( radialSegments + 1 ) * j + i;
    					const d = ( radialSegments + 1 ) * ( j - 1 ) + i;

    					// faces

    					indices.push( a, b, d );
    					indices.push( b, c, d );

    				}

    			}

    		}

    		function generateUVs() {

    			for ( let i = 0; i <= tubularSegments; i ++ ) {

    				for ( let j = 0; j <= radialSegments; j ++ ) {

    					uv.x = i / tubularSegments;
    					uv.y = j / radialSegments;

    					uvs.push( uv.x, uv.y );

    				}

    			}

    		}

    	}

    	toJSON() {

    		const data = super.toJSON();

    		data.path = this.parameters.path.toJSON();

    		return data;

    	}

    	static fromJSON( data ) {

    		// This only works for built-in curves (e.g. CatmullRomCurve3).
    		// User defined curves or instances of CurvePath will not be deserialized.
    		return new TubeGeometry(
    			new Curves[ data.path.type ]().fromJSON( data.path ),
    			data.tubularSegments,
    			data.radius,
    			data.radialSegments,
    			data.closed
    		);

    	}

    }

    class WireframeGeometry extends BufferGeometry {

    	constructor( geometry = null ) {

    		super();

    		this.type = 'WireframeGeometry';

    		this.parameters = {
    			geometry: geometry
    		};

    		if ( geometry !== null ) {

    			// buffer

    			const vertices = [];
    			const edges = new Set();

    			// helper variables

    			const start = new Vector3();
    			const end = new Vector3();

    			if ( geometry.index !== null ) {

    				// indexed BufferGeometry

    				const position = geometry.attributes.position;
    				const indices = geometry.index;
    				let groups = geometry.groups;

    				if ( groups.length === 0 ) {

    					groups = [ { start: 0, count: indices.count, materialIndex: 0 } ];

    				}

    				// create a data structure that contains all edges without duplicates

    				for ( let o = 0, ol = groups.length; o < ol; ++ o ) {

    					const group = groups[ o ];

    					const groupStart = group.start;
    					const groupCount = group.count;

    					for ( let i = groupStart, l = ( groupStart + groupCount ); i < l; i += 3 ) {

    						for ( let j = 0; j < 3; j ++ ) {

    							const index1 = indices.getX( i + j );
    							const index2 = indices.getX( i + ( j + 1 ) % 3 );

    							start.fromBufferAttribute( position, index1 );
    							end.fromBufferAttribute( position, index2 );

    							if ( isUniqueEdge( start, end, edges ) === true ) {

    								vertices.push( start.x, start.y, start.z );
    								vertices.push( end.x, end.y, end.z );

    							}

    						}

    					}

    				}

    			} else {

    				// non-indexed BufferGeometry

    				const position = geometry.attributes.position;

    				for ( let i = 0, l = ( position.count / 3 ); i < l; i ++ ) {

    					for ( let j = 0; j < 3; j ++ ) {

    						// three edges per triangle, an edge is represented as (index1, index2)
    						// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)

    						const index1 = 3 * i + j;
    						const index2 = 3 * i + ( ( j + 1 ) % 3 );

    						start.fromBufferAttribute( position, index1 );
    						end.fromBufferAttribute( position, index2 );

    						if ( isUniqueEdge( start, end, edges ) === true ) {

    							vertices.push( start.x, start.y, start.z );
    							vertices.push( end.x, end.y, end.z );

    						}

    					}

    				}

    			}

    			// build geometry

    			this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );

    		}

    	}

    }

    function isUniqueEdge( start, end, edges ) {

    	const hash1 = `${start.x},${start.y},${start.z}-${end.x},${end.y},${end.z}`;
    	const hash2 = `${end.x},${end.y},${end.z}-${start.x},${start.y},${start.z}`; // coincident edge

    	if ( edges.has( hash1 ) === true || edges.has( hash2 ) === true ) {

    		return false;

    	} else {

    		edges.add( hash1 );
    		edges.add( hash2 );
    		return true;

    	}

    }

    var Geometries = /*#__PURE__*/Object.freeze({
    	__proto__: null,
    	BoxGeometry: BoxGeometry,
    	CapsuleGeometry: CapsuleGeometry,
    	CircleGeometry: CircleGeometry,
    	ConeGeometry: ConeGeometry,
    	CylinderGeometry: CylinderGeometry,
    	DodecahedronGeometry: DodecahedronGeometry,
    	EdgesGeometry: EdgesGeometry,
    	ExtrudeGeometry: ExtrudeGeometry,
    	IcosahedronGeometry: IcosahedronGeometry,
    	LatheGeometry: LatheGeometry,
    	OctahedronGeometry: OctahedronGeometry,
    	PlaneGeometry: PlaneGeometry,
    	PolyhedronGeometry: PolyhedronGeometry,
    	RingGeometry: RingGeometry,
    	ShapeGeometry: ShapeGeometry,
    	SphereGeometry: SphereGeometry,
    	TetrahedronGeometry: TetrahedronGeometry,
    	TorusGeometry: TorusGeometry,
    	TorusKnotGeometry: TorusKnotGeometry,
    	TubeGeometry: TubeGeometry,
    	WireframeGeometry: WireframeGeometry
    });

    class ShadowMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isShadowMaterial = true;

    		this.type = 'ShadowMaterial';

    		this.color = new Color( 0x000000 );
    		this.transparent = true;

    		this.fog = true;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.color.copy( source.color );

    		this.fog = source.fog;

    		return this;

    	}

    }

    class RawShaderMaterial extends ShaderMaterial {

    	constructor( parameters ) {

    		super( parameters );

    		this.isRawShaderMaterial = true;

    		this.type = 'RawShaderMaterial';

    	}

    }

    class MeshStandardMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshStandardMaterial = true;

    		this.defines = { 'STANDARD': '' };

    		this.type = 'MeshStandardMaterial';

    		this.color = new Color( 0xffffff ); // diffuse
    		this.roughness = 1.0;
    		this.metalness = 0.0;

    		this.map = null;

    		this.lightMap = null;
    		this.lightMapIntensity = 1.0;

    		this.aoMap = null;
    		this.aoMapIntensity = 1.0;

    		this.emissive = new Color( 0x000000 );
    		this.emissiveIntensity = 1.0;
    		this.emissiveMap = null;

    		this.bumpMap = null;
    		this.bumpScale = 1;

    		this.normalMap = null;
    		this.normalMapType = TangentSpaceNormalMap;
    		this.normalScale = new Vector2( 1, 1 );

    		this.displacementMap = null;
    		this.displacementScale = 1;
    		this.displacementBias = 0;

    		this.roughnessMap = null;

    		this.metalnessMap = null;

    		this.alphaMap = null;

    		this.envMap = null;
    		this.envMapIntensity = 1.0;

    		this.wireframe = false;
    		this.wireframeLinewidth = 1;
    		this.wireframeLinecap = 'round';
    		this.wireframeLinejoin = 'round';

    		this.flatShading = false;

    		this.fog = true;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.defines = { 'STANDARD': '' };

    		this.color.copy( source.color );
    		this.roughness = source.roughness;
    		this.metalness = source.metalness;

    		this.map = source.map;

    		this.lightMap = source.lightMap;
    		this.lightMapIntensity = source.lightMapIntensity;

    		this.aoMap = source.aoMap;
    		this.aoMapIntensity = source.aoMapIntensity;

    		this.emissive.copy( source.emissive );
    		this.emissiveMap = source.emissiveMap;
    		this.emissiveIntensity = source.emissiveIntensity;

    		this.bumpMap = source.bumpMap;
    		this.bumpScale = source.bumpScale;

    		this.normalMap = source.normalMap;
    		this.normalMapType = source.normalMapType;
    		this.normalScale.copy( source.normalScale );

    		this.displacementMap = source.displacementMap;
    		this.displacementScale = source.displacementScale;
    		this.displacementBias = source.displacementBias;

    		this.roughnessMap = source.roughnessMap;

    		this.metalnessMap = source.metalnessMap;

    		this.alphaMap = source.alphaMap;

    		this.envMap = source.envMap;
    		this.envMapIntensity = source.envMapIntensity;

    		this.wireframe = source.wireframe;
    		this.wireframeLinewidth = source.wireframeLinewidth;
    		this.wireframeLinecap = source.wireframeLinecap;
    		this.wireframeLinejoin = source.wireframeLinejoin;

    		this.flatShading = source.flatShading;

    		this.fog = source.fog;

    		return this;

    	}

    }

    class MeshPhysicalMaterial extends MeshStandardMaterial {

    	constructor( parameters ) {

    		super();

    		this.isMeshPhysicalMaterial = true;

    		this.defines = {

    			'STANDARD': '',
    			'PHYSICAL': ''

    		};

    		this.type = 'MeshPhysicalMaterial';

    		this.clearcoatMap = null;
    		this.clearcoatRoughness = 0.0;
    		this.clearcoatRoughnessMap = null;
    		this.clearcoatNormalScale = new Vector2( 1, 1 );
    		this.clearcoatNormalMap = null;

    		this.ior = 1.5;

    		Object.defineProperty( this, 'reflectivity', {
    			get: function () {

    				return ( clamp( 2.5 * ( this.ior - 1 ) / ( this.ior + 1 ), 0, 1 ) );

    			},
    			set: function ( reflectivity ) {

    				this.ior = ( 1 + 0.4 * reflectivity ) / ( 1 - 0.4 * reflectivity );

    			}
    		} );

    		this.iridescenceMap = null;
    		this.iridescenceIOR = 1.3;
    		this.iridescenceThicknessRange = [ 100, 400 ];
    		this.iridescenceThicknessMap = null;

    		this.sheenColor = new Color( 0x000000 );
    		this.sheenColorMap = null;
    		this.sheenRoughness = 1.0;
    		this.sheenRoughnessMap = null;

    		this.transmissionMap = null;

    		this.thickness = 0;
    		this.thicknessMap = null;
    		this.attenuationDistance = Infinity;
    		this.attenuationColor = new Color( 1, 1, 1 );

    		this.specularIntensity = 1.0;
    		this.specularIntensityMap = null;
    		this.specularColor = new Color( 1, 1, 1 );
    		this.specularColorMap = null;

    		this._sheen = 0.0;
    		this._clearcoat = 0;
    		this._iridescence = 0;
    		this._transmission = 0;

    		this.setValues( parameters );

    	}

    	get sheen() {

    		return this._sheen;

    	}

    	set sheen( value ) {

    		if ( this._sheen > 0 !== value > 0 ) {

    			this.version ++;

    		}

    		this._sheen = value;

    	}

    	get clearcoat() {

    		return this._clearcoat;

    	}

    	set clearcoat( value ) {

    		if ( this._clearcoat > 0 !== value > 0 ) {

    			this.version ++;

    		}

    		this._clearcoat = value;

    	}

    	get iridescence() {

    		return this._iridescence;

    	}

    	set iridescence( value ) {

    		if ( this._iridescence > 0 !== value > 0 ) {

    			this.version ++;

    		}

    		this._iridescence = value;

    	}

    	get transmission() {

    		return this._transmission;

    	}

    	set transmission( value ) {

    		if ( this._transmission > 0 !== value > 0 ) {

    			this.version ++;

    		}

    		this._transmission = value;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.defines = {

    			'STANDARD': '',
    			'PHYSICAL': ''

    		};

    		this.clearcoat = source.clearcoat;
    		this.clearcoatMap = source.clearcoatMap;
    		this.clearcoatRoughness = source.clearcoatRoughness;
    		this.clearcoatRoughnessMap = source.clearcoatRoughnessMap;
    		this.clearcoatNormalMap = source.clearcoatNormalMap;
    		this.clearcoatNormalScale.copy( source.clearcoatNormalScale );

    		this.ior = source.ior;

    		this.iridescence = source.iridescence;
    		this.iridescenceMap = source.iridescenceMap;
    		this.iridescenceIOR = source.iridescenceIOR;
    		this.iridescenceThicknessRange = [ ...source.iridescenceThicknessRange ];
    		this.iridescenceThicknessMap = source.iridescenceThicknessMap;

    		this.sheen = source.sheen;
    		this.sheenColor.copy( source.sheenColor );
    		this.sheenColorMap = source.sheenColorMap;
    		this.sheenRoughness = source.sheenRoughness;
    		this.sheenRoughnessMap = source.sheenRoughnessMap;

    		this.transmission = source.transmission;
    		this.transmissionMap = source.transmissionMap;

    		this.thickness = source.thickness;
    		this.thicknessMap = source.thicknessMap;
    		this.attenuationDistance = source.attenuationDistance;
    		this.attenuationColor.copy( source.attenuationColor );

    		this.specularIntensity = source.specularIntensity;
    		this.specularIntensityMap = source.specularIntensityMap;
    		this.specularColor.copy( source.specularColor );
    		this.specularColorMap = source.specularColorMap;

    		return this;

    	}

    }

    class MeshPhongMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshPhongMaterial = true;

    		this.type = 'MeshPhongMaterial';

    		this.color = new Color( 0xffffff ); // diffuse
    		this.specular = new Color( 0x111111 );
    		this.shininess = 30;

    		this.map = null;

    		this.lightMap = null;
    		this.lightMapIntensity = 1.0;

    		this.aoMap = null;
    		this.aoMapIntensity = 1.0;

    		this.emissive = new Color( 0x000000 );
    		this.emissiveIntensity = 1.0;
    		this.emissiveMap = null;

    		this.bumpMap = null;
    		this.bumpScale = 1;

    		this.normalMap = null;
    		this.normalMapType = TangentSpaceNormalMap;
    		this.normalScale = new Vector2( 1, 1 );

    		this.displacementMap = null;
    		this.displacementScale = 1;
    		this.displacementBias = 0;

    		this.specularMap = null;

    		this.alphaMap = null;

    		this.envMap = null;
    		this.combine = MultiplyOperation;
    		this.reflectivity = 1;
    		this.refractionRatio = 0.98;

    		this.wireframe = false;
    		this.wireframeLinewidth = 1;
    		this.wireframeLinecap = 'round';
    		this.wireframeLinejoin = 'round';

    		this.flatShading = false;

    		this.fog = true;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.color.copy( source.color );
    		this.specular.copy( source.specular );
    		this.shininess = source.shininess;

    		this.map = source.map;

    		this.lightMap = source.lightMap;
    		this.lightMapIntensity = source.lightMapIntensity;

    		this.aoMap = source.aoMap;
    		this.aoMapIntensity = source.aoMapIntensity;

    		this.emissive.copy( source.emissive );
    		this.emissiveMap = source.emissiveMap;
    		this.emissiveIntensity = source.emissiveIntensity;

    		this.bumpMap = source.bumpMap;
    		this.bumpScale = source.bumpScale;

    		this.normalMap = source.normalMap;
    		this.normalMapType = source.normalMapType;
    		this.normalScale.copy( source.normalScale );

    		this.displacementMap = source.displacementMap;
    		this.displacementScale = source.displacementScale;
    		this.displacementBias = source.displacementBias;

    		this.specularMap = source.specularMap;

    		this.alphaMap = source.alphaMap;

    		this.envMap = source.envMap;
    		this.combine = source.combine;
    		this.reflectivity = source.reflectivity;
    		this.refractionRatio = source.refractionRatio;

    		this.wireframe = source.wireframe;
    		this.wireframeLinewidth = source.wireframeLinewidth;
    		this.wireframeLinecap = source.wireframeLinecap;
    		this.wireframeLinejoin = source.wireframeLinejoin;

    		this.flatShading = source.flatShading;

    		this.fog = source.fog;

    		return this;

    	}

    }

    class MeshToonMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshToonMaterial = true;

    		this.defines = { 'TOON': '' };

    		this.type = 'MeshToonMaterial';

    		this.color = new Color( 0xffffff );

    		this.map = null;
    		this.gradientMap = null;

    		this.lightMap = null;
    		this.lightMapIntensity = 1.0;

    		this.aoMap = null;
    		this.aoMapIntensity = 1.0;

    		this.emissive = new Color( 0x000000 );
    		this.emissiveIntensity = 1.0;
    		this.emissiveMap = null;

    		this.bumpMap = null;
    		this.bumpScale = 1;

    		this.normalMap = null;
    		this.normalMapType = TangentSpaceNormalMap;
    		this.normalScale = new Vector2( 1, 1 );

    		this.displacementMap = null;
    		this.displacementScale = 1;
    		this.displacementBias = 0;

    		this.alphaMap = null;

    		this.wireframe = false;
    		this.wireframeLinewidth = 1;
    		this.wireframeLinecap = 'round';
    		this.wireframeLinejoin = 'round';

    		this.fog = true;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.color.copy( source.color );

    		this.map = source.map;
    		this.gradientMap = source.gradientMap;

    		this.lightMap = source.lightMap;
    		this.lightMapIntensity = source.lightMapIntensity;

    		this.aoMap = source.aoMap;
    		this.aoMapIntensity = source.aoMapIntensity;

    		this.emissive.copy( source.emissive );
    		this.emissiveMap = source.emissiveMap;
    		this.emissiveIntensity = source.emissiveIntensity;

    		this.bumpMap = source.bumpMap;
    		this.bumpScale = source.bumpScale;

    		this.normalMap = source.normalMap;
    		this.normalMapType = source.normalMapType;
    		this.normalScale.copy( source.normalScale );

    		this.displacementMap = source.displacementMap;
    		this.displacementScale = source.displacementScale;
    		this.displacementBias = source.displacementBias;

    		this.alphaMap = source.alphaMap;

    		this.wireframe = source.wireframe;
    		this.wireframeLinewidth = source.wireframeLinewidth;
    		this.wireframeLinecap = source.wireframeLinecap;
    		this.wireframeLinejoin = source.wireframeLinejoin;

    		this.fog = source.fog;

    		return this;

    	}

    }

    class MeshNormalMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshNormalMaterial = true;

    		this.type = 'MeshNormalMaterial';

    		this.bumpMap = null;
    		this.bumpScale = 1;

    		this.normalMap = null;
    		this.normalMapType = TangentSpaceNormalMap;
    		this.normalScale = new Vector2( 1, 1 );

    		this.displacementMap = null;
    		this.displacementScale = 1;
    		this.displacementBias = 0;

    		this.wireframe = false;
    		this.wireframeLinewidth = 1;

    		this.flatShading = false;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.bumpMap = source.bumpMap;
    		this.bumpScale = source.bumpScale;

    		this.normalMap = source.normalMap;
    		this.normalMapType = source.normalMapType;
    		this.normalScale.copy( source.normalScale );

    		this.displacementMap = source.displacementMap;
    		this.displacementScale = source.displacementScale;
    		this.displacementBias = source.displacementBias;

    		this.wireframe = source.wireframe;
    		this.wireframeLinewidth = source.wireframeLinewidth;

    		this.flatShading = source.flatShading;

    		return this;

    	}

    }

    class MeshLambertMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshLambertMaterial = true;

    		this.type = 'MeshLambertMaterial';

    		this.color = new Color( 0xffffff ); // diffuse

    		this.map = null;

    		this.lightMap = null;
    		this.lightMapIntensity = 1.0;

    		this.aoMap = null;
    		this.aoMapIntensity = 1.0;

    		this.emissive = new Color( 0x000000 );
    		this.emissiveIntensity = 1.0;
    		this.emissiveMap = null;

    		this.bumpMap = null;
    		this.bumpScale = 1;

    		this.normalMap = null;
    		this.normalMapType = TangentSpaceNormalMap;
    		this.normalScale = new Vector2( 1, 1 );

    		this.displacementMap = null;
    		this.displacementScale = 1;
    		this.displacementBias = 0;

    		this.specularMap = null;

    		this.alphaMap = null;

    		this.envMap = null;
    		this.combine = MultiplyOperation;
    		this.reflectivity = 1;
    		this.refractionRatio = 0.98;

    		this.wireframe = false;
    		this.wireframeLinewidth = 1;
    		this.wireframeLinecap = 'round';
    		this.wireframeLinejoin = 'round';

    		this.flatShading = false;

    		this.fog = true;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.color.copy( source.color );

    		this.map = source.map;

    		this.lightMap = source.lightMap;
    		this.lightMapIntensity = source.lightMapIntensity;

    		this.aoMap = source.aoMap;
    		this.aoMapIntensity = source.aoMapIntensity;

    		this.emissive.copy( source.emissive );
    		this.emissiveMap = source.emissiveMap;
    		this.emissiveIntensity = source.emissiveIntensity;

    		this.bumpMap = source.bumpMap;
    		this.bumpScale = source.bumpScale;

    		this.normalMap = source.normalMap;
    		this.normalMapType = source.normalMapType;
    		this.normalScale.copy( source.normalScale );

    		this.displacementMap = source.displacementMap;
    		this.displacementScale = source.displacementScale;
    		this.displacementBias = source.displacementBias;

    		this.specularMap = source.specularMap;

    		this.alphaMap = source.alphaMap;

    		this.envMap = source.envMap;
    		this.combine = source.combine;
    		this.reflectivity = source.reflectivity;
    		this.refractionRatio = source.refractionRatio;

    		this.wireframe = source.wireframe;
    		this.wireframeLinewidth = source.wireframeLinewidth;
    		this.wireframeLinecap = source.wireframeLinecap;
    		this.wireframeLinejoin = source.wireframeLinejoin;

    		this.flatShading = source.flatShading;

    		this.fog = source.fog;

    		return this;

    	}

    }

    class MeshMatcapMaterial extends Material {

    	constructor( parameters ) {

    		super();

    		this.isMeshMatcapMaterial = true;

    		this.defines = { 'MATCAP': '' };

    		this.type = 'MeshMatcapMaterial';

    		this.color = new Color( 0xffffff ); // diffuse

    		this.matcap = null;

    		this.map = null;

    		this.bumpMap = null;
    		this.bumpScale = 1;

    		this.normalMap = null;
    		this.normalMapType = TangentSpaceNormalMap;
    		this.normalScale = new Vector2( 1, 1 );

    		this.displacementMap = null;
    		this.displacementScale = 1;
    		this.displacementBias = 0;

    		this.alphaMap = null;

    		this.flatShading = false;

    		this.fog = true;

    		this.setValues( parameters );

    	}


    	copy( source ) {

    		super.copy( source );

    		this.defines = { 'MATCAP': '' };

    		this.color.copy( source.color );

    		this.matcap = source.matcap;

    		this.map = source.map;

    		this.bumpMap = source.bumpMap;
    		this.bumpScale = source.bumpScale;

    		this.normalMap = source.normalMap;
    		this.normalMapType = source.normalMapType;
    		this.normalScale.copy( source.normalScale );

    		this.displacementMap = source.displacementMap;
    		this.displacementScale = source.displacementScale;
    		this.displacementBias = source.displacementBias;

    		this.alphaMap = source.alphaMap;

    		this.flatShading = source.flatShading;

    		this.fog = source.fog;

    		return this;

    	}

    }

    class LineDashedMaterial extends LineBasicMaterial {

    	constructor( parameters ) {

    		super();

    		this.isLineDashedMaterial = true;

    		this.type = 'LineDashedMaterial';

    		this.scale = 1;
    		this.dashSize = 3;
    		this.gapSize = 1;

    		this.setValues( parameters );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.scale = source.scale;
    		this.dashSize = source.dashSize;
    		this.gapSize = source.gapSize;

    		return this;

    	}

    }

    // same as Array.prototype.slice, but also works on typed arrays
    function arraySlice( array, from, to ) {

    	if ( isTypedArray( array ) ) {

    		// in ios9 array.subarray(from, undefined) will return empty array
    		// but array.subarray(from) or array.subarray(from, len) is correct
    		return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );

    	}

    	return array.slice( from, to );

    }

    // converts an array to a specific type
    function convertArray( array, type, forceClone ) {

    	if ( ! array || // let 'undefined' and 'null' pass
    		! forceClone && array.constructor === type ) return array;

    	if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {

    		return new type( array ); // create typed array

    	}

    	return Array.prototype.slice.call( array ); // create Array

    }

    function isTypedArray( object ) {

    	return ArrayBuffer.isView( object ) &&
    		! ( object instanceof DataView );

    }

    // returns an array by which times and values can be sorted
    function getKeyframeOrder( times ) {

    	function compareTime( i, j ) {

    		return times[ i ] - times[ j ];

    	}

    	const n = times.length;
    	const result = new Array( n );
    	for ( let i = 0; i !== n; ++ i ) result[ i ] = i;

    	result.sort( compareTime );

    	return result;

    }

    // uses the array previously returned by 'getKeyframeOrder' to sort data
    function sortedArray( values, stride, order ) {

    	const nValues = values.length;
    	const result = new values.constructor( nValues );

    	for ( let i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {

    		const srcOffset = order[ i ] * stride;

    		for ( let j = 0; j !== stride; ++ j ) {

    			result[ dstOffset ++ ] = values[ srcOffset + j ];

    		}

    	}

    	return result;

    }

    // function for parsing AOS keyframe formats
    function flattenJSON( jsonKeys, times, values, valuePropertyName ) {

    	let i = 1, key = jsonKeys[ 0 ];

    	while ( key !== undefined && key[ valuePropertyName ] === undefined ) {

    		key = jsonKeys[ i ++ ];

    	}

    	if ( key === undefined ) return; // no data

    	let value = key[ valuePropertyName ];
    	if ( value === undefined ) return; // no data

    	if ( Array.isArray( value ) ) {

    		do {

    			value = key[ valuePropertyName ];

    			if ( value !== undefined ) {

    				times.push( key.time );
    				values.push.apply( values, value ); // push all elements

    			}

    			key = jsonKeys[ i ++ ];

    		} while ( key !== undefined );

    	} else if ( value.toArray !== undefined ) {

    		// ...assume THREE.Math-ish

    		do {

    			value = key[ valuePropertyName ];

    			if ( value !== undefined ) {

    				times.push( key.time );
    				value.toArray( values, values.length );

    			}

    			key = jsonKeys[ i ++ ];

    		} while ( key !== undefined );

    	} else {

    		// otherwise push as-is

    		do {

    			value = key[ valuePropertyName ];

    			if ( value !== undefined ) {

    				times.push( key.time );
    				values.push( value );

    			}

    			key = jsonKeys[ i ++ ];

    		} while ( key !== undefined );

    	}

    }

    function subclip( sourceClip, name, startFrame, endFrame, fps = 30 ) {

    	const clip = sourceClip.clone();

    	clip.name = name;

    	const tracks = [];

    	for ( let i = 0; i < clip.tracks.length; ++ i ) {

    		const track = clip.tracks[ i ];
    		const valueSize = track.getValueSize();

    		const times = [];
    		const values = [];

    		for ( let j = 0; j < track.times.length; ++ j ) {

    			const frame = track.times[ j ] * fps;

    			if ( frame < startFrame || frame >= endFrame ) continue;

    			times.push( track.times[ j ] );

    			for ( let k = 0; k < valueSize; ++ k ) {

    				values.push( track.values[ j * valueSize + k ] );

    			}

    		}

    		if ( times.length === 0 ) continue;

    		track.times = convertArray( times, track.times.constructor );
    		track.values = convertArray( values, track.values.constructor );

    		tracks.push( track );

    	}

    	clip.tracks = tracks;

    	// find minimum .times value across all tracks in the trimmed clip

    	let minStartTime = Infinity;

    	for ( let i = 0; i < clip.tracks.length; ++ i ) {

    		if ( minStartTime > clip.tracks[ i ].times[ 0 ] ) {

    			minStartTime = clip.tracks[ i ].times[ 0 ];

    		}

    	}

    	// shift all tracks such that clip begins at t=0

    	for ( let i = 0; i < clip.tracks.length; ++ i ) {

    		clip.tracks[ i ].shift( - 1 * minStartTime );

    	}

    	clip.resetDuration();

    	return clip;

    }

    function makeClipAdditive( targetClip, referenceFrame = 0, referenceClip = targetClip, fps = 30 ) {

    	if ( fps <= 0 ) fps = 30;

    	const numTracks = referenceClip.tracks.length;
    	const referenceTime = referenceFrame / fps;

    	// Make each track's values relative to the values at the reference frame
    	for ( let i = 0; i < numTracks; ++ i ) {

    		const referenceTrack = referenceClip.tracks[ i ];
    		const referenceTrackType = referenceTrack.ValueTypeName;

    		// Skip this track if it's non-numeric
    		if ( referenceTrackType === 'bool' || referenceTrackType === 'string' ) continue;

    		// Find the track in the target clip whose name and type matches the reference track
    		const targetTrack = targetClip.tracks.find( function ( track ) {

    			return track.name === referenceTrack.name
    				&& track.ValueTypeName === referenceTrackType;

    		} );

    		if ( targetTrack === undefined ) continue;

    		let referenceOffset = 0;
    		const referenceValueSize = referenceTrack.getValueSize();

    		if ( referenceTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline ) {

    			referenceOffset = referenceValueSize / 3;

    		}

    		let targetOffset = 0;
    		const targetValueSize = targetTrack.getValueSize();

    		if ( targetTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline ) {

    			targetOffset = targetValueSize / 3;

    		}

    		const lastIndex = referenceTrack.times.length - 1;
    		let referenceValue;

    		// Find the value to subtract out of the track
    		if ( referenceTime <= referenceTrack.times[ 0 ] ) {

    			// Reference frame is earlier than the first keyframe, so just use the first keyframe
    			const startIndex = referenceOffset;
    			const endIndex = referenceValueSize - referenceOffset;
    			referenceValue = arraySlice( referenceTrack.values, startIndex, endIndex );

    		} else if ( referenceTime >= referenceTrack.times[ lastIndex ] ) {

    			// Reference frame is after the last keyframe, so just use the last keyframe
    			const startIndex = lastIndex * referenceValueSize + referenceOffset;
    			const endIndex = startIndex + referenceValueSize - referenceOffset;
    			referenceValue = arraySlice( referenceTrack.values, startIndex, endIndex );

    		} else {

    			// Interpolate to the reference value
    			const interpolant = referenceTrack.createInterpolant();
    			const startIndex = referenceOffset;
    			const endIndex = referenceValueSize - referenceOffset;
    			interpolant.evaluate( referenceTime );
    			referenceValue = arraySlice( interpolant.resultBuffer, startIndex, endIndex );

    		}

    		// Conjugate the quaternion
    		if ( referenceTrackType === 'quaternion' ) {

    			const referenceQuat = new Quaternion().fromArray( referenceValue ).normalize().conjugate();
    			referenceQuat.toArray( referenceValue );

    		}

    		// Subtract the reference value from all of the track values

    		const numTimes = targetTrack.times.length;
    		for ( let j = 0; j < numTimes; ++ j ) {

    			const valueStart = j * targetValueSize + targetOffset;

    			if ( referenceTrackType === 'quaternion' ) {

    				// Multiply the conjugate for quaternion track types
    				Quaternion.multiplyQuaternionsFlat(
    					targetTrack.values,
    					valueStart,
    					referenceValue,
    					0,
    					targetTrack.values,
    					valueStart
    				);

    			} else {

    				const valueEnd = targetValueSize - targetOffset * 2;

    				// Subtract each value for all other numeric track types
    				for ( let k = 0; k < valueEnd; ++ k ) {

    					targetTrack.values[ valueStart + k ] -= referenceValue[ k ];

    				}

    			}

    		}

    	}

    	targetClip.blendMode = AdditiveAnimationBlendMode;

    	return targetClip;

    }

    var AnimationUtils = /*#__PURE__*/Object.freeze({
    	__proto__: null,
    	arraySlice: arraySlice,
    	convertArray: convertArray,
    	isTypedArray: isTypedArray,
    	getKeyframeOrder: getKeyframeOrder,
    	sortedArray: sortedArray,
    	flattenJSON: flattenJSON,
    	subclip: subclip,
    	makeClipAdditive: makeClipAdditive
    });

    /**
     * Abstract base class of interpolants over parametric samples.
     *
     * The parameter domain is one dimensional, typically the time or a path
     * along a curve defined by the data.
     *
     * The sample values can have any dimensionality and derived classes may
     * apply special interpretations to the data.
     *
     * This class provides the interval seek in a Template Method, deferring
     * the actual interpolation to derived classes.
     *
     * Time complexity is O(1) for linear access crossing at most two points
     * and O(log N) for random access, where N is the number of positions.
     *
     * References:
     *
     * 		http://www.oodesign.com/template-method-pattern.html
     *
     */

    class Interpolant {

    	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

    		this.parameterPositions = parameterPositions;
    		this._cachedIndex = 0;

    		this.resultBuffer = resultBuffer !== undefined ?
    			resultBuffer : new sampleValues.constructor( sampleSize );
    		this.sampleValues = sampleValues;
    		this.valueSize = sampleSize;

    		this.settings = null;
    		this.DefaultSettings_ = {};

    	}

    	evaluate( t ) {

    		const pp = this.parameterPositions;
    		let i1 = this._cachedIndex,
    			t1 = pp[ i1 ],
    			t0 = pp[ i1 - 1 ];

    		validate_interval: {

    			seek: {

    				let right;

    				linear_scan: {

    					//- See http://jsperf.com/comparison-to-undefined/3
    					//- slower code:
    					//-
    					//- 				if ( t >= t1 || t1 === undefined ) {
    					forward_scan: if ( ! ( t < t1 ) ) {

    						for ( let giveUpAt = i1 + 2; ; ) {

    							if ( t1 === undefined ) {

    								if ( t < t0 ) break forward_scan;

    								// after end

    								i1 = pp.length;
    								this._cachedIndex = i1;
    								return this.copySampleValue_( i1 - 1 );

    							}

    							if ( i1 === giveUpAt ) break; // this loop

    							t0 = t1;
    							t1 = pp[ ++ i1 ];

    							if ( t < t1 ) {

    								// we have arrived at the sought interval
    								break seek;

    							}

    						}

    						// prepare binary search on the right side of the index
    						right = pp.length;
    						break linear_scan;

    					}

    					//- slower code:
    					//-					if ( t < t0 || t0 === undefined ) {
    					if ( ! ( t >= t0 ) ) {

    						// looping?

    						const t1global = pp[ 1 ];

    						if ( t < t1global ) {

    							i1 = 2; // + 1, using the scan for the details
    							t0 = t1global;

    						}

    						// linear reverse scan

    						for ( let giveUpAt = i1 - 2; ; ) {

    							if ( t0 === undefined ) {

    								// before start

    								this._cachedIndex = 0;
    								return this.copySampleValue_( 0 );

    							}

    							if ( i1 === giveUpAt ) break; // this loop

    							t1 = t0;
    							t0 = pp[ -- i1 - 1 ];

    							if ( t >= t0 ) {

    								// we have arrived at the sought interval
    								break seek;

    							}

    						}

    						// prepare binary search on the left side of the index
    						right = i1;
    						i1 = 0;
    						break linear_scan;

    					}

    					// the interval is valid

    					break validate_interval;

    				} // linear scan

    				// binary search

    				while ( i1 < right ) {

    					const mid = ( i1 + right ) >>> 1;

    					if ( t < pp[ mid ] ) {

    						right = mid;

    					} else {

    						i1 = mid + 1;

    					}

    				}

    				t1 = pp[ i1 ];
    				t0 = pp[ i1 - 1 ];

    				// check boundary cases, again

    				if ( t0 === undefined ) {

    					this._cachedIndex = 0;
    					return this.copySampleValue_( 0 );

    				}

    				if ( t1 === undefined ) {

    					i1 = pp.length;
    					this._cachedIndex = i1;
    					return this.copySampleValue_( i1 - 1 );

    				}

    			} // seek

    			this._cachedIndex = i1;

    			this.intervalChanged_( i1, t0, t1 );

    		} // validate_interval

    		return this.interpolate_( i1, t0, t, t1 );

    	}

    	getSettings_() {

    		return this.settings || this.DefaultSettings_;

    	}

    	copySampleValue_( index ) {

    		// copies a sample value to the result buffer

    		const result = this.resultBuffer,
    			values = this.sampleValues,
    			stride = this.valueSize,
    			offset = index * stride;

    		for ( let i = 0; i !== stride; ++ i ) {

    			result[ i ] = values[ offset + i ];

    		}

    		return result;

    	}

    	// Template methods for derived classes:

    	interpolate_( /* i1, t0, t, t1 */ ) {

    		throw new Error( 'call to abstract method' );
    		// implementations shall return this.resultBuffer

    	}

    	intervalChanged_( /* i1, t0, t1 */ ) {

    		// empty

    	}

    }

    /**
     * Fast and simple cubic spline interpolant.
     *
     * It was derived from a Hermitian construction setting the first derivative
     * at each sample position to the linear slope between neighboring positions
     * over their parameter interval.
     */

    class CubicInterpolant extends Interpolant {

    	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

    		super( parameterPositions, sampleValues, sampleSize, resultBuffer );

    		this._weightPrev = - 0;
    		this._offsetPrev = - 0;
    		this._weightNext = - 0;
    		this._offsetNext = - 0;

    		this.DefaultSettings_ = {

    			endingStart: ZeroCurvatureEnding,
    			endingEnd: ZeroCurvatureEnding

    		};

    	}

    	intervalChanged_( i1, t0, t1 ) {

    		const pp = this.parameterPositions;
    		let iPrev = i1 - 2,
    			iNext = i1 + 1,

    			tPrev = pp[ iPrev ],
    			tNext = pp[ iNext ];

    		if ( tPrev === undefined ) {

    			switch ( this.getSettings_().endingStart ) {

    				case ZeroSlopeEnding:

    					// f'(t0) = 0
    					iPrev = i1;
    					tPrev = 2 * t0 - t1;

    					break;

    				case WrapAroundEnding:

    					// use the other end of the curve
    					iPrev = pp.length - 2;
    					tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];

    					break;

    				default: // ZeroCurvatureEnding

    					// f''(t0) = 0 a.k.a. Natural Spline
    					iPrev = i1;
    					tPrev = t1;

    			}

    		}

    		if ( tNext === undefined ) {

    			switch ( this.getSettings_().endingEnd ) {

    				case ZeroSlopeEnding:

    					// f'(tN) = 0
    					iNext = i1;
    					tNext = 2 * t1 - t0;

    					break;

    				case WrapAroundEnding:

    					// use the other end of the curve
    					iNext = 1;
    					tNext = t1 + pp[ 1 ] - pp[ 0 ];

    					break;

    				default: // ZeroCurvatureEnding

    					// f''(tN) = 0, a.k.a. Natural Spline
    					iNext = i1 - 1;
    					tNext = t0;

    			}

    		}

    		const halfDt = ( t1 - t0 ) * 0.5,
    			stride = this.valueSize;

    		this._weightPrev = halfDt / ( t0 - tPrev );
    		this._weightNext = halfDt / ( tNext - t1 );
    		this._offsetPrev = iPrev * stride;
    		this._offsetNext = iNext * stride;

    	}

    	interpolate_( i1, t0, t, t1 ) {

    		const result = this.resultBuffer,
    			values = this.sampleValues,
    			stride = this.valueSize,

    			o1 = i1 * stride,		o0 = o1 - stride,
    			oP = this._offsetPrev, 	oN = this._offsetNext,
    			wP = this._weightPrev,	wN = this._weightNext,

    			p = ( t - t0 ) / ( t1 - t0 ),
    			pp = p * p,
    			ppp = pp * p;

    		// evaluate polynomials

    		const sP = - wP * ppp + 2 * wP * pp - wP * p;
    		const s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;
    		const s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;
    		const sN = wN * ppp - wN * pp;

    		// combine data linearly

    		for ( let i = 0; i !== stride; ++ i ) {

    			result[ i ] =
    					sP * values[ oP + i ] +
    					s0 * values[ o0 + i ] +
    					s1 * values[ o1 + i ] +
    					sN * values[ oN + i ];

    		}

    		return result;

    	}

    }

    class LinearInterpolant extends Interpolant {

    	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

    		super( parameterPositions, sampleValues, sampleSize, resultBuffer );

    	}

    	interpolate_( i1, t0, t, t1 ) {

    		const result = this.resultBuffer,
    			values = this.sampleValues,
    			stride = this.valueSize,

    			offset1 = i1 * stride,
    			offset0 = offset1 - stride,

    			weight1 = ( t - t0 ) / ( t1 - t0 ),
    			weight0 = 1 - weight1;

    		for ( let i = 0; i !== stride; ++ i ) {

    			result[ i ] =
    					values[ offset0 + i ] * weight0 +
    					values[ offset1 + i ] * weight1;

    		}

    		return result;

    	}

    }

    /**
     *
     * Interpolant that evaluates to the sample value at the position preceding
     * the parameter.
     */

    class DiscreteInterpolant extends Interpolant {

    	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

    		super( parameterPositions, sampleValues, sampleSize, resultBuffer );

    	}

    	interpolate_( i1 /*, t0, t, t1 */ ) {

    		return this.copySampleValue_( i1 - 1 );

    	}

    }

    class KeyframeTrack {

    	constructor( name, times, values, interpolation ) {

    		if ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' );
    		if ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name );

    		this.name = name;

    		this.times = convertArray( times, this.TimeBufferType );
    		this.values = convertArray( values, this.ValueBufferType );

    		this.setInterpolation( interpolation || this.DefaultInterpolation );

    	}

    	// Serialization (in static context, because of constructor invocation
    	// and automatic invocation of .toJSON):

    	static toJSON( track ) {

    		const trackType = track.constructor;

    		let json;

    		// derived classes can define a static toJSON method
    		if ( trackType.toJSON !== this.toJSON ) {

    			json = trackType.toJSON( track );

    		} else {

    			// by default, we assume the data can be serialized as-is
    			json = {

    				'name': track.name,
    				'times': convertArray( track.times, Array ),
    				'values': convertArray( track.values, Array )

    			};

    			const interpolation = track.getInterpolation();

    			if ( interpolation !== track.DefaultInterpolation ) {

    				json.interpolation = interpolation;

    			}

    		}

    		json.type = track.ValueTypeName; // mandatory

    		return json;

    	}

    	InterpolantFactoryMethodDiscrete( result ) {

    		return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );

    	}

    	InterpolantFactoryMethodLinear( result ) {

    		return new LinearInterpolant( this.times, this.values, this.getValueSize(), result );

    	}

    	InterpolantFactoryMethodSmooth( result ) {

    		return new CubicInterpolant( this.times, this.values, this.getValueSize(), result );

    	}

    	setInterpolation( interpolation ) {

    		let factoryMethod;

    		switch ( interpolation ) {

    			case InterpolateDiscrete:

    				factoryMethod = this.InterpolantFactoryMethodDiscrete;

    				break;

    			case InterpolateLinear:

    				factoryMethod = this.InterpolantFactoryMethodLinear;

    				break;

    			case InterpolateSmooth:

    				factoryMethod = this.InterpolantFactoryMethodSmooth;

    				break;

    		}

    		if ( factoryMethod === undefined ) {

    			const message = 'unsupported interpolation for ' +
    				this.ValueTypeName + ' keyframe track named ' + this.name;

    			if ( this.createInterpolant === undefined ) {

    				// fall back to default, unless the default itself is messed up
    				if ( interpolation !== this.DefaultInterpolation ) {

    					this.setInterpolation( this.DefaultInterpolation );

    				} else {

    					throw new Error( message ); // fatal, in this case

    				}

    			}

    			console.warn( 'THREE.KeyframeTrack:', message );
    			return this;

    		}

    		this.createInterpolant = factoryMethod;

    		return this;

    	}

    	getInterpolation() {

    		switch ( this.createInterpolant ) {

    			case this.InterpolantFactoryMethodDiscrete:

    				return InterpolateDiscrete;

    			case this.InterpolantFactoryMethodLinear:

    				return InterpolateLinear;

    			case this.InterpolantFactoryMethodSmooth:

    				return InterpolateSmooth;

    		}

    	}

    	getValueSize() {

    		return this.values.length / this.times.length;

    	}

    	// move all keyframes either forwards or backwards in time
    	shift( timeOffset ) {

    		if ( timeOffset !== 0.0 ) {

    			const times = this.times;

    			for ( let i = 0, n = times.length; i !== n; ++ i ) {

    				times[ i ] += timeOffset;

    			}

    		}

    		return this;

    	}

    	// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
    	scale( timeScale ) {

    		if ( timeScale !== 1.0 ) {

    			const times = this.times;

    			for ( let i = 0, n = times.length; i !== n; ++ i ) {

    				times[ i ] *= timeScale;

    			}

    		}

    		return this;

    	}

    	// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
    	// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
    	trim( startTime, endTime ) {

    		const times = this.times,
    			nKeys = times.length;

    		let from = 0,
    			to = nKeys - 1;

    		while ( from !== nKeys && times[ from ] < startTime ) {

    			++ from;

    		}

    		while ( to !== - 1 && times[ to ] > endTime ) {

    			-- to;

    		}

    		++ to; // inclusive -> exclusive bound

    		if ( from !== 0 || to !== nKeys ) {

    			// empty tracks are forbidden, so keep at least one keyframe
    			if ( from >= to ) {

    				to = Math.max( to, 1 );
    				from = to - 1;

    			}

    			const stride = this.getValueSize();
    			this.times = arraySlice( times, from, to );
    			this.values = arraySlice( this.values, from * stride, to * stride );

    		}

    		return this;

    	}

    	// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
    	validate() {

    		let valid = true;

    		const valueSize = this.getValueSize();
    		if ( valueSize - Math.floor( valueSize ) !== 0 ) {

    			console.error( 'THREE.KeyframeTrack: Invalid value size in track.', this );
    			valid = false;

    		}

    		const times = this.times,
    			values = this.values,

    			nKeys = times.length;

    		if ( nKeys === 0 ) {

    			console.error( 'THREE.KeyframeTrack: Track is empty.', this );
    			valid = false;

    		}

    		let prevTime = null;

    		for ( let i = 0; i !== nKeys; i ++ ) {

    			const currTime = times[ i ];

    			if ( typeof currTime === 'number' && isNaN( currTime ) ) {

    				console.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime );
    				valid = false;
    				break;

    			}

    			if ( prevTime !== null && prevTime > currTime ) {

    				console.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime );
    				valid = false;
    				break;

    			}

    			prevTime = currTime;

    		}

    		if ( values !== undefined ) {

    			if ( isTypedArray( values ) ) {

    				for ( let i = 0, n = values.length; i !== n; ++ i ) {

    					const value = values[ i ];

    					if ( isNaN( value ) ) {

    						console.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value );
    						valid = false;
    						break;

    					}

    				}

    			}

    		}

    		return valid;

    	}

    	// removes equivalent sequential keys as common in morph target sequences
    	// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
    	optimize() {

    		// times or values may be shared with other tracks, so overwriting is unsafe
    		const times = arraySlice( this.times ),
    			values = arraySlice( this.values ),
    			stride = this.getValueSize(),

    			smoothInterpolation = this.getInterpolation() === InterpolateSmooth,

    			lastIndex = times.length - 1;

    		let writeIndex = 1;

    		for ( let i = 1; i < lastIndex; ++ i ) {

    			let keep = false;

    			const time = times[ i ];
    			const timeNext = times[ i + 1 ];

    			// remove adjacent keyframes scheduled at the same time

    			if ( time !== timeNext && ( i !== 1 || time !== times[ 0 ] ) ) {

    				if ( ! smoothInterpolation ) {

    					// remove unnecessary keyframes same as their neighbors

    					const offset = i * stride,
    						offsetP = offset - stride,
    						offsetN = offset + stride;

    					for ( let j = 0; j !== stride; ++ j ) {

    						const value = values[ offset + j ];

    						if ( value !== values[ offsetP + j ] ||
    							value !== values[ offsetN + j ] ) {

    							keep = true;
    							break;

    						}

    					}

    				} else {

    					keep = true;

    				}

    			}

    			// in-place compaction

    			if ( keep ) {

    				if ( i !== writeIndex ) {

    					times[ writeIndex ] = times[ i ];

    					const readOffset = i * stride,
    						writeOffset = writeIndex * stride;

    					for ( let j = 0; j !== stride; ++ j ) {

    						values[ writeOffset + j ] = values[ readOffset + j ];

    					}

    				}

    				++ writeIndex;

    			}

    		}

    		// flush last keyframe (compaction looks ahead)

    		if ( lastIndex > 0 ) {

    			times[ writeIndex ] = times[ lastIndex ];

    			for ( let readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) {

    				values[ writeOffset + j ] = values[ readOffset + j ];

    			}

    			++ writeIndex;

    		}

    		if ( writeIndex !== times.length ) {

    			this.times = arraySlice( times, 0, writeIndex );
    			this.values = arraySlice( values, 0, writeIndex * stride );

    		} else {

    			this.times = times;
    			this.values = values;

    		}

    		return this;

    	}

    	clone() {

    		const times = arraySlice( this.times, 0 );
    		const values = arraySlice( this.values, 0 );

    		const TypedKeyframeTrack = this.constructor;
    		const track = new TypedKeyframeTrack( this.name, times, values );

    		// Interpolant argument to constructor is not saved, so copy the factory method directly.
    		track.createInterpolant = this.createInterpolant;

    		return track;

    	}

    }

    KeyframeTrack.prototype.TimeBufferType = Float32Array;
    KeyframeTrack.prototype.ValueBufferType = Float32Array;
    KeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;

    /**
     * A Track of Boolean keyframe values.
     */
    class BooleanKeyframeTrack extends KeyframeTrack {}

    BooleanKeyframeTrack.prototype.ValueTypeName = 'bool';
    BooleanKeyframeTrack.prototype.ValueBufferType = Array;
    BooleanKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
    BooleanKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
    BooleanKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;

    /**
     * A Track of keyframe values that represent color.
     */
    class ColorKeyframeTrack extends KeyframeTrack {}

    ColorKeyframeTrack.prototype.ValueTypeName = 'color';

    /**
     * A Track of numeric keyframe values.
     */
    class NumberKeyframeTrack extends KeyframeTrack {}

    NumberKeyframeTrack.prototype.ValueTypeName = 'number';

    /**
     * Spherical linear unit quaternion interpolant.
     */

    class QuaternionLinearInterpolant extends Interpolant {

    	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

    		super( parameterPositions, sampleValues, sampleSize, resultBuffer );

    	}

    	interpolate_( i1, t0, t, t1 ) {

    		const result = this.resultBuffer,
    			values = this.sampleValues,
    			stride = this.valueSize,

    			alpha = ( t - t0 ) / ( t1 - t0 );

    		let offset = i1 * stride;

    		for ( let end = offset + stride; offset !== end; offset += 4 ) {

    			Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );

    		}

    		return result;

    	}

    }

    /**
     * A Track of quaternion keyframe values.
     */
    class QuaternionKeyframeTrack extends KeyframeTrack {

    	InterpolantFactoryMethodLinear( result ) {

    		return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );

    	}

    }

    QuaternionKeyframeTrack.prototype.ValueTypeName = 'quaternion';
    // ValueBufferType is inherited
    QuaternionKeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;
    QuaternionKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;

    /**
     * A Track that interpolates Strings
     */
    class StringKeyframeTrack extends KeyframeTrack {}

    StringKeyframeTrack.prototype.ValueTypeName = 'string';
    StringKeyframeTrack.prototype.ValueBufferType = Array;
    StringKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
    StringKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
    StringKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;

    /**
     * A Track of vectored keyframe values.
     */
    class VectorKeyframeTrack extends KeyframeTrack {}

    VectorKeyframeTrack.prototype.ValueTypeName = 'vector';

    class AnimationClip {

    	constructor( name, duration = - 1, tracks, blendMode = NormalAnimationBlendMode ) {

    		this.name = name;
    		this.tracks = tracks;
    		this.duration = duration;
    		this.blendMode = blendMode;

    		this.uuid = generateUUID();

    		// this means it should figure out its duration by scanning the tracks
    		if ( this.duration < 0 ) {

    			this.resetDuration();

    		}

    	}


    	static parse( json ) {

    		const tracks = [],
    			jsonTracks = json.tracks,
    			frameTime = 1.0 / ( json.fps || 1.0 );

    		for ( let i = 0, n = jsonTracks.length; i !== n; ++ i ) {

    			tracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) );

    		}

    		const clip = new this( json.name, json.duration, tracks, json.blendMode );
    		clip.uuid = json.uuid;

    		return clip;

    	}

    	static toJSON( clip ) {

    		const tracks = [],
    			clipTracks = clip.tracks;

    		const json = {

    			'name': clip.name,
    			'duration': clip.duration,
    			'tracks': tracks,
    			'uuid': clip.uuid,
    			'blendMode': clip.blendMode

    		};

    		for ( let i = 0, n = clipTracks.length; i !== n; ++ i ) {

    			tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );

    		}

    		return json;

    	}

    	static CreateFromMorphTargetSequence( name, morphTargetSequence, fps, noLoop ) {

    		const numMorphTargets = morphTargetSequence.length;
    		const tracks = [];

    		for ( let i = 0; i < numMorphTargets; i ++ ) {

    			let times = [];
    			let values = [];

    			times.push(
    				( i + numMorphTargets - 1 ) % numMorphTargets,
    				i,
    				( i + 1 ) % numMorphTargets );

    			values.push( 0, 1, 0 );

    			const order = getKeyframeOrder( times );
    			times = sortedArray( times, 1, order );
    			values = sortedArray( values, 1, order );

    			// if there is a key at the first frame, duplicate it as the
    			// last frame as well for perfect loop.
    			if ( ! noLoop && times[ 0 ] === 0 ) {

    				times.push( numMorphTargets );
    				values.push( values[ 0 ] );

    			}

    			tracks.push(
    				new NumberKeyframeTrack(
    					'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
    					times, values
    				).scale( 1.0 / fps ) );

    		}

    		return new this( name, - 1, tracks );

    	}

    	static findByName( objectOrClipArray, name ) {

    		let clipArray = objectOrClipArray;

    		if ( ! Array.isArray( objectOrClipArray ) ) {

    			const o = objectOrClipArray;
    			clipArray = o.geometry && o.geometry.animations || o.animations;

    		}

    		for ( let i = 0; i < clipArray.length; i ++ ) {

    			if ( clipArray[ i ].name === name ) {

    				return clipArray[ i ];

    			}

    		}

    		return null;

    	}

    	static CreateClipsFromMorphTargetSequences( morphTargets, fps, noLoop ) {

    		const animationToMorphTargets = {};

    		// tested with https://regex101.com/ on trick sequences
    		// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
    		const pattern = /^([\w-]*?)([\d]+)$/;

    		// sort morph target names into animation groups based
    		// patterns like Walk_001, Walk_002, Run_001, Run_002
    		for ( let i = 0, il = morphTargets.length; i < il; i ++ ) {

    			const morphTarget = morphTargets[ i ];
    			const parts = morphTarget.name.match( pattern );

    			if ( parts && parts.length > 1 ) {

    				const name = parts[ 1 ];

    				let animationMorphTargets = animationToMorphTargets[ name ];

    				if ( ! animationMorphTargets ) {

    					animationToMorphTargets[ name ] = animationMorphTargets = [];

    				}

    				animationMorphTargets.push( morphTarget );

    			}

    		}

    		const clips = [];

    		for ( const name in animationToMorphTargets ) {

    			clips.push( this.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );

    		}

    		return clips;

    	}

    	// parse the animation.hierarchy format
    	static parseAnimation( animation, bones ) {

    		if ( ! animation ) {

    			console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );
    			return null;

    		}

    		const addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {

    			// only return track if there are actually keys.
    			if ( animationKeys.length !== 0 ) {

    				const times = [];
    				const values = [];

    				flattenJSON( animationKeys, times, values, propertyName );

    				// empty keys are filtered out, so check again
    				if ( times.length !== 0 ) {

    					destTracks.push( new trackType( trackName, times, values ) );

    				}

    			}

    		};

    		const tracks = [];

    		const clipName = animation.name || 'default';
    		const fps = animation.fps || 30;
    		const blendMode = animation.blendMode;

    		// automatic length determination in AnimationClip.
    		let duration = animation.length || - 1;

    		const hierarchyTracks = animation.hierarchy || [];

    		for ( let h = 0; h < hierarchyTracks.length; h ++ ) {

    			const animationKeys = hierarchyTracks[ h ].keys;

    			// skip empty tracks
    			if ( ! animationKeys || animationKeys.length === 0 ) continue;

    			// process morph targets
    			if ( animationKeys[ 0 ].morphTargets ) {

    				// figure out all morph targets used in this track
    				const morphTargetNames = {};

    				let k;

    				for ( k = 0; k < animationKeys.length; k ++ ) {

    					if ( animationKeys[ k ].morphTargets ) {

    						for ( let m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {

    							morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;

    						}

    					}

    				}

    				// create a track for each morph target with all zero
    				// morphTargetInfluences except for the keys in which
    				// the morphTarget is named.
    				for ( const morphTargetName in morphTargetNames ) {

    					const times = [];
    					const values = [];

    					for ( let m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {

    						const animationKey = animationKeys[ k ];

    						times.push( animationKey.time );
    						values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );

    					}

    					tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );

    				}

    				duration = morphTargetNames.length * fps;

    			} else {

    				// ...assume skeletal animation

    				const boneName = '.bones[' + bones[ h ].name + ']';

    				addNonemptyTrack(
    					VectorKeyframeTrack, boneName + '.position',
    					animationKeys, 'pos', tracks );

    				addNonemptyTrack(
    					QuaternionKeyframeTrack, boneName + '.quaternion',
    					animationKeys, 'rot', tracks );

    				addNonemptyTrack(
    					VectorKeyframeTrack, boneName + '.scale',
    					animationKeys, 'scl', tracks );

    			}

    		}

    		if ( tracks.length === 0 ) {

    			return null;

    		}

    		const clip = new this( clipName, duration, tracks, blendMode );

    		return clip;

    	}

    	resetDuration() {

    		const tracks = this.tracks;
    		let duration = 0;

    		for ( let i = 0, n = tracks.length; i !== n; ++ i ) {

    			const track = this.tracks[ i ];

    			duration = Math.max( duration, track.times[ track.times.length - 1 ] );

    		}

    		this.duration = duration;

    		return this;

    	}

    	trim() {

    		for ( let i = 0; i < this.tracks.length; i ++ ) {

    			this.tracks[ i ].trim( 0, this.duration );

    		}

    		return this;

    	}

    	validate() {

    		let valid = true;

    		for ( let i = 0; i < this.tracks.length; i ++ ) {

    			valid = valid && this.tracks[ i ].validate();

    		}

    		return valid;

    	}

    	optimize() {

    		for ( let i = 0; i < this.tracks.length; i ++ ) {

    			this.tracks[ i ].optimize();

    		}

    		return this;

    	}

    	clone() {

    		const tracks = [];

    		for ( let i = 0; i < this.tracks.length; i ++ ) {

    			tracks.push( this.tracks[ i ].clone() );

    		}

    		return new this.constructor( this.name, this.duration, tracks, this.blendMode );

    	}

    	toJSON() {

    		return this.constructor.toJSON( this );

    	}

    }

    function getTrackTypeForValueTypeName( typeName ) {

    	switch ( typeName.toLowerCase() ) {

    		case 'scalar':
    		case 'double':
    		case 'float':
    		case 'number':
    		case 'integer':

    			return NumberKeyframeTrack;

    		case 'vector':
    		case 'vector2':
    		case 'vector3':
    		case 'vector4':

    			return VectorKeyframeTrack;

    		case 'color':

    			return ColorKeyframeTrack;

    		case 'quaternion':

    			return QuaternionKeyframeTrack;

    		case 'bool':
    		case 'boolean':

    			return BooleanKeyframeTrack;

    		case 'string':

    			return StringKeyframeTrack;

    	}

    	throw new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName );

    }

    function parseKeyframeTrack( json ) {

    	if ( json.type === undefined ) {

    		throw new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' );

    	}

    	const trackType = getTrackTypeForValueTypeName( json.type );

    	if ( json.times === undefined ) {

    		const times = [], values = [];

    		flattenJSON( json.keys, times, values, 'value' );

    		json.times = times;
    		json.values = values;

    	}

    	// derived classes can define a static parse method
    	if ( trackType.parse !== undefined ) {

    		return trackType.parse( json );

    	} else {

    		// by default, we assume a constructor compatible with the base
    		return new trackType( json.name, json.times, json.values, json.interpolation );

    	}

    }

    const Cache = {

    	enabled: false,

    	files: {},

    	add: function ( key, file ) {

    		if ( this.enabled === false ) return;

    		// console.log( 'THREE.Cache', 'Adding key:', key );

    		this.files[ key ] = file;

    	},

    	get: function ( key ) {

    		if ( this.enabled === false ) return;

    		// console.log( 'THREE.Cache', 'Checking key:', key );

    		return this.files[ key ];

    	},

    	remove: function ( key ) {

    		delete this.files[ key ];

    	},

    	clear: function () {

    		this.files = {};

    	}

    };

    class LoadingManager {

    	constructor( onLoad, onProgress, onError ) {

    		const scope = this;

    		let isLoading = false;
    		let itemsLoaded = 0;
    		let itemsTotal = 0;
    		let urlModifier = undefined;
    		const handlers = [];

    		// Refer to #5689 for the reason why we don't set .onStart
    		// in the constructor

    		this.onStart = undefined;
    		this.onLoad = onLoad;
    		this.onProgress = onProgress;
    		this.onError = onError;

    		this.itemStart = function ( url ) {

    			itemsTotal ++;

    			if ( isLoading === false ) {

    				if ( scope.onStart !== undefined ) {

    					scope.onStart( url, itemsLoaded, itemsTotal );

    				}

    			}

    			isLoading = true;

    		};

    		this.itemEnd = function ( url ) {

    			itemsLoaded ++;

    			if ( scope.onProgress !== undefined ) {

    				scope.onProgress( url, itemsLoaded, itemsTotal );

    			}

    			if ( itemsLoaded === itemsTotal ) {

    				isLoading = false;

    				if ( scope.onLoad !== undefined ) {

    					scope.onLoad();

    				}

    			}

    		};

    		this.itemError = function ( url ) {

    			if ( scope.onError !== undefined ) {

    				scope.onError( url );

    			}

    		};

    		this.resolveURL = function ( url ) {

    			if ( urlModifier ) {

    				return urlModifier( url );

    			}

    			return url;

    		};

    		this.setURLModifier = function ( transform ) {

    			urlModifier = transform;

    			return this;

    		};

    		this.addHandler = function ( regex, loader ) {

    			handlers.push( regex, loader );

    			return this;

    		};

    		this.removeHandler = function ( regex ) {

    			const index = handlers.indexOf( regex );

    			if ( index !== - 1 ) {

    				handlers.splice( index, 2 );

    			}

    			return this;

    		};

    		this.getHandler = function ( file ) {

    			for ( let i = 0, l = handlers.length; i < l; i += 2 ) {

    				const regex = handlers[ i ];
    				const loader = handlers[ i + 1 ];

    				if ( regex.global ) regex.lastIndex = 0; // see #17920

    				if ( regex.test( file ) ) {

    					return loader;

    				}

    			}

    			return null;

    		};

    	}

    }

    const DefaultLoadingManager = /*@__PURE__*/ new LoadingManager();

    class Loader {

    	constructor( manager ) {

    		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

    		this.crossOrigin = 'anonymous';
    		this.withCredentials = false;
    		this.path = '';
    		this.resourcePath = '';
    		this.requestHeader = {};

    	}

    	load( /* url, onLoad, onProgress, onError */ ) {}

    	loadAsync( url, onProgress ) {

    		const scope = this;

    		return new Promise( function ( resolve, reject ) {

    			scope.load( url, resolve, onProgress, reject );

    		} );

    	}

    	parse( /* data */ ) {}

    	setCrossOrigin( crossOrigin ) {

    		this.crossOrigin = crossOrigin;
    		return this;

    	}

    	setWithCredentials( value ) {

    		this.withCredentials = value;
    		return this;

    	}

    	setPath( path ) {

    		this.path = path;
    		return this;

    	}

    	setResourcePath( resourcePath ) {

    		this.resourcePath = resourcePath;
    		return this;

    	}

    	setRequestHeader( requestHeader ) {

    		this.requestHeader = requestHeader;
    		return this;

    	}

    }

    const loading = {};

    class HttpError extends Error {

    	constructor( message, response ) {

    		super( message );
    		this.response = response;

    	}

    }

    class FileLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		if ( url === undefined ) url = '';

    		if ( this.path !== undefined ) url = this.path + url;

    		url = this.manager.resolveURL( url );

    		const cached = Cache.get( url );

    		if ( cached !== undefined ) {

    			this.manager.itemStart( url );

    			setTimeout( () => {

    				if ( onLoad ) onLoad( cached );

    				this.manager.itemEnd( url );

    			}, 0 );

    			return cached;

    		}

    		// Check if request is duplicate

    		if ( loading[ url ] !== undefined ) {

    			loading[ url ].push( {

    				onLoad: onLoad,
    				onProgress: onProgress,
    				onError: onError

    			} );

    			return;

    		}

    		// Initialise array for duplicate requests
    		loading[ url ] = [];

    		loading[ url ].push( {
    			onLoad: onLoad,
    			onProgress: onProgress,
    			onError: onError,
    		} );

    		// create request
    		const req = new Request( url, {
    			headers: new Headers( this.requestHeader ),
    			credentials: this.withCredentials ? 'include' : 'same-origin',
    			// An abort controller could be added within a future PR
    		} );

    		// record states ( avoid data race )
    		const mimeType = this.mimeType;
    		const responseType = this.responseType;

    		// start the fetch
    		fetch( req )
    			.then( response => {

    				if ( response.status === 200 || response.status === 0 ) {

    					// Some browsers return HTTP Status 0 when using non-http protocol
    					// e.g. 'file://' or 'data://'. Handle as success.

    					if ( response.status === 0 ) {

    						console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );

    					}

    					// Workaround: Checking if response.body === undefined for Alipay browser #23548

    					if ( typeof ReadableStream === 'undefined' || response.body === undefined || response.body.getReader === undefined ) {

    						return response;

    					}

    					const callbacks = loading[ url ];
    					const reader = response.body.getReader();
    					const contentLength = response.headers.get( 'Content-Length' );
    					const total = contentLength ? parseInt( contentLength ) : 0;
    					const lengthComputable = total !== 0;
    					let loaded = 0;

    					// periodically read data into the new stream tracking while download progress
    					const stream = new ReadableStream( {
    						start( controller ) {

    							readData();

    							function readData() {

    								reader.read().then( ( { done, value } ) => {

    									if ( done ) {

    										controller.close();

    									} else {

    										loaded += value.byteLength;

    										const event = new ProgressEvent( 'progress', { lengthComputable, loaded, total } );
    										for ( let i = 0, il = callbacks.length; i < il; i ++ ) {

    											const callback = callbacks[ i ];
    											if ( callback.onProgress ) callback.onProgress( event );

    										}

    										controller.enqueue( value );
    										readData();

    									}

    								} );

    							}

    						}

    					} );

    					return new Response( stream );

    				} else {

    					throw new HttpError( `fetch for "${response.url}" responded with ${response.status}: ${response.statusText}`, response );

    				}

    			} )
    			.then( response => {

    				switch ( responseType ) {

    					case 'arraybuffer':

    						return response.arrayBuffer();

    					case 'blob':

    						return response.blob();

    					case 'document':

    						return response.text()
    							.then( text => {

    								const parser = new DOMParser();
    								return parser.parseFromString( text, mimeType );

    							} );

    					case 'json':

    						return response.json();

    					default:

    						if ( mimeType === undefined ) {

    							return response.text();

    						} else {

    							// sniff encoding
    							const re = /charset="?([^;"\s]*)"?/i;
    							const exec = re.exec( mimeType );
    							const label = exec && exec[ 1 ] ? exec[ 1 ].toLowerCase() : undefined;
    							const decoder = new TextDecoder( label );
    							return response.arrayBuffer().then( ab => decoder.decode( ab ) );

    						}

    				}

    			} )
    			.then( data => {

    				// Add to cache only on HTTP success, so that we do not cache
    				// error response bodies as proper responses to requests.
    				Cache.add( url, data );

    				const callbacks = loading[ url ];
    				delete loading[ url ];

    				for ( let i = 0, il = callbacks.length; i < il; i ++ ) {

    					const callback = callbacks[ i ];
    					if ( callback.onLoad ) callback.onLoad( data );

    				}

    			} )
    			.catch( err => {

    				// Abort errors and other errors are handled the same

    				const callbacks = loading[ url ];

    				if ( callbacks === undefined ) {

    					// When onLoad was called and url was deleted in `loading`
    					this.manager.itemError( url );
    					throw err;

    				}

    				delete loading[ url ];

    				for ( let i = 0, il = callbacks.length; i < il; i ++ ) {

    					const callback = callbacks[ i ];
    					if ( callback.onError ) callback.onError( err );

    				}

    				this.manager.itemError( url );

    			} )
    			.finally( () => {

    				this.manager.itemEnd( url );

    			} );

    		this.manager.itemStart( url );

    	}

    	setResponseType( value ) {

    		this.responseType = value;
    		return this;

    	}

    	setMimeType( value ) {

    		this.mimeType = value;
    		return this;

    	}

    }

    class AnimationLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		const scope = this;

    		const loader = new FileLoader( this.manager );
    		loader.setPath( this.path );
    		loader.setRequestHeader( this.requestHeader );
    		loader.setWithCredentials( this.withCredentials );
    		loader.load( url, function ( text ) {

    			try {

    				onLoad( scope.parse( JSON.parse( text ) ) );

    			} catch ( e ) {

    				if ( onError ) {

    					onError( e );

    				} else {

    					console.error( e );

    				}

    				scope.manager.itemError( url );

    			}

    		}, onProgress, onError );

    	}

    	parse( json ) {

    		const animations = [];

    		for ( let i = 0; i < json.length; i ++ ) {

    			const clip = AnimationClip.parse( json[ i ] );

    			animations.push( clip );

    		}

    		return animations;

    	}

    }

    /**
     * Abstract Base class to block based textures loader (dds, pvr, ...)
     *
     * Sub classes have to implement the parse() method which will be used in load().
     */

    class CompressedTextureLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		const scope = this;

    		const images = [];

    		const texture = new CompressedTexture();

    		const loader = new FileLoader( this.manager );
    		loader.setPath( this.path );
    		loader.setResponseType( 'arraybuffer' );
    		loader.setRequestHeader( this.requestHeader );
    		loader.setWithCredentials( scope.withCredentials );

    		let loaded = 0;

    		function loadTexture( i ) {

    			loader.load( url[ i ], function ( buffer ) {

    				const texDatas = scope.parse( buffer, true );

    				images[ i ] = {
    					width: texDatas.width,
    					height: texDatas.height,
    					format: texDatas.format,
    					mipmaps: texDatas.mipmaps
    				};

    				loaded += 1;

    				if ( loaded === 6 ) {

    					if ( texDatas.mipmapCount === 1 ) texture.minFilter = LinearFilter;

    					texture.image = images;
    					texture.format = texDatas.format;
    					texture.needsUpdate = true;

    					if ( onLoad ) onLoad( texture );

    				}

    			}, onProgress, onError );

    		}

    		if ( Array.isArray( url ) ) {

    			for ( let i = 0, il = url.length; i < il; ++ i ) {

    				loadTexture( i );

    			}

    		} else {

    			// compressed cubemap texture stored in a single DDS file

    			loader.load( url, function ( buffer ) {

    				const texDatas = scope.parse( buffer, true );

    				if ( texDatas.isCubemap ) {

    					const faces = texDatas.mipmaps.length / texDatas.mipmapCount;

    					for ( let f = 0; f < faces; f ++ ) {

    						images[ f ] = { mipmaps: [] };

    						for ( let i = 0; i < texDatas.mipmapCount; i ++ ) {

    							images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
    							images[ f ].format = texDatas.format;
    							images[ f ].width = texDatas.width;
    							images[ f ].height = texDatas.height;

    						}

    					}

    					texture.image = images;

    				} else {

    					texture.image.width = texDatas.width;
    					texture.image.height = texDatas.height;
    					texture.mipmaps = texDatas.mipmaps;

    				}

    				if ( texDatas.mipmapCount === 1 ) {

    					texture.minFilter = LinearFilter;

    				}

    				texture.format = texDatas.format;
    				texture.needsUpdate = true;

    				if ( onLoad ) onLoad( texture );

    			}, onProgress, onError );

    		}

    		return texture;

    	}

    }

    class ImageLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		if ( this.path !== undefined ) url = this.path + url;

    		url = this.manager.resolveURL( url );

    		const scope = this;

    		const cached = Cache.get( url );

    		if ( cached !== undefined ) {

    			scope.manager.itemStart( url );

    			setTimeout( function () {

    				if ( onLoad ) onLoad( cached );

    				scope.manager.itemEnd( url );

    			}, 0 );

    			return cached;

    		}

    		const image = createElementNS( 'img' );

    		function onImageLoad() {

    			removeEventListeners();

    			Cache.add( url, this );

    			if ( onLoad ) onLoad( this );

    			scope.manager.itemEnd( url );

    		}

    		function onImageError( event ) {

    			removeEventListeners();

    			if ( onError ) onError( event );

    			scope.manager.itemError( url );
    			scope.manager.itemEnd( url );

    		}

    		function removeEventListeners() {

    			image.removeEventListener( 'load', onImageLoad, false );
    			image.removeEventListener( 'error', onImageError, false );

    		}

    		image.addEventListener( 'load', onImageLoad, false );
    		image.addEventListener( 'error', onImageError, false );

    		if ( url.slice( 0, 5 ) !== 'data:' ) {

    			if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;

    		}

    		scope.manager.itemStart( url );

    		image.src = url;

    		return image;

    	}

    }

    class CubeTextureLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( urls, onLoad, onProgress, onError ) {

    		const texture = new CubeTexture();

    		const loader = new ImageLoader( this.manager );
    		loader.setCrossOrigin( this.crossOrigin );
    		loader.setPath( this.path );

    		let loaded = 0;

    		function loadTexture( i ) {

    			loader.load( urls[ i ], function ( image ) {

    				texture.images[ i ] = image;

    				loaded ++;

    				if ( loaded === 6 ) {

    					texture.needsUpdate = true;

    					if ( onLoad ) onLoad( texture );

    				}

    			}, undefined, onError );

    		}

    		for ( let i = 0; i < urls.length; ++ i ) {

    			loadTexture( i );

    		}

    		return texture;

    	}

    }

    /**
     * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
     *
     * Sub classes have to implement the parse() method which will be used in load().
     */

    class DataTextureLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		const scope = this;

    		const texture = new DataTexture();

    		const loader = new FileLoader( this.manager );
    		loader.setResponseType( 'arraybuffer' );
    		loader.setRequestHeader( this.requestHeader );
    		loader.setPath( this.path );
    		loader.setWithCredentials( scope.withCredentials );
    		loader.load( url, function ( buffer ) {

    			const texData = scope.parse( buffer );

    			if ( ! texData ) return;

    			if ( texData.image !== undefined ) {

    				texture.image = texData.image;

    			} else if ( texData.data !== undefined ) {

    				texture.image.width = texData.width;
    				texture.image.height = texData.height;
    				texture.image.data = texData.data;

    			}

    			texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping;
    			texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping;

    			texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter;
    			texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearFilter;

    			texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1;

    			if ( texData.encoding !== undefined ) {

    				texture.encoding = texData.encoding;

    			}

    			if ( texData.flipY !== undefined ) {

    				texture.flipY = texData.flipY;

    			}

    			if ( texData.format !== undefined ) {

    				texture.format = texData.format;

    			}

    			if ( texData.type !== undefined ) {

    				texture.type = texData.type;

    			}

    			if ( texData.mipmaps !== undefined ) {

    				texture.mipmaps = texData.mipmaps;
    				texture.minFilter = LinearMipmapLinearFilter; // presumably...

    			}

    			if ( texData.mipmapCount === 1 ) {

    				texture.minFilter = LinearFilter;

    			}

    			if ( texData.generateMipmaps !== undefined ) {

    				texture.generateMipmaps = texData.generateMipmaps;

    			}

    			texture.needsUpdate = true;

    			if ( onLoad ) onLoad( texture, texData );

    		}, onProgress, onError );


    		return texture;

    	}

    }

    class TextureLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		const texture = new Texture();

    		const loader = new ImageLoader( this.manager );
    		loader.setCrossOrigin( this.crossOrigin );
    		loader.setPath( this.path );

    		loader.load( url, function ( image ) {

    			texture.image = image;
    			texture.needsUpdate = true;

    			if ( onLoad !== undefined ) {

    				onLoad( texture );

    			}

    		}, onProgress, onError );

    		return texture;

    	}

    }

    class Light extends Object3D {

    	constructor( color, intensity = 1 ) {

    		super();

    		this.isLight = true;

    		this.type = 'Light';

    		this.color = new Color( color );
    		this.intensity = intensity;

    	}

    	dispose() {

    		// Empty here in base class; some subclasses override.

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.color.copy( source.color );
    		this.intensity = source.intensity;

    		return this;

    	}

    	toJSON( meta ) {

    		const data = super.toJSON( meta );

    		data.object.color = this.color.getHex();
    		data.object.intensity = this.intensity;

    		if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();

    		if ( this.distance !== undefined ) data.object.distance = this.distance;
    		if ( this.angle !== undefined ) data.object.angle = this.angle;
    		if ( this.decay !== undefined ) data.object.decay = this.decay;
    		if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;

    		if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();

    		return data;

    	}

    }

    class HemisphereLight extends Light {

    	constructor( skyColor, groundColor, intensity ) {

    		super( skyColor, intensity );

    		this.isHemisphereLight = true;

    		this.type = 'HemisphereLight';

    		this.position.copy( Object3D.DefaultUp );
    		this.updateMatrix();

    		this.groundColor = new Color( groundColor );

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.groundColor.copy( source.groundColor );

    		return this;

    	}

    }

    const _projScreenMatrix$1 = /*@__PURE__*/ new Matrix4();
    const _lightPositionWorld$1 = /*@__PURE__*/ new Vector3();
    const _lookTarget$1 = /*@__PURE__*/ new Vector3();

    class LightShadow {

    	constructor( camera ) {

    		this.camera = camera;

    		this.bias = 0;
    		this.normalBias = 0;
    		this.radius = 1;
    		this.blurSamples = 8;

    		this.mapSize = new Vector2( 512, 512 );

    		this.map = null;
    		this.mapPass = null;
    		this.matrix = new Matrix4();

    		this.autoUpdate = true;
    		this.needsUpdate = false;

    		this._frustum = new Frustum();
    		this._frameExtents = new Vector2( 1, 1 );

    		this._viewportCount = 1;

    		this._viewports = [

    			new Vector4( 0, 0, 1, 1 )

    		];

    	}

    	getViewportCount() {

    		return this._viewportCount;

    	}

    	getFrustum() {

    		return this._frustum;

    	}

    	updateMatrices( light ) {

    		const shadowCamera = this.camera;
    		const shadowMatrix = this.matrix;

    		_lightPositionWorld$1.setFromMatrixPosition( light.matrixWorld );
    		shadowCamera.position.copy( _lightPositionWorld$1 );

    		_lookTarget$1.setFromMatrixPosition( light.target.matrixWorld );
    		shadowCamera.lookAt( _lookTarget$1 );
    		shadowCamera.updateMatrixWorld();

    		_projScreenMatrix$1.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
    		this._frustum.setFromProjectionMatrix( _projScreenMatrix$1 );

    		shadowMatrix.set(
    			0.5, 0.0, 0.0, 0.5,
    			0.0, 0.5, 0.0, 0.5,
    			0.0, 0.0, 0.5, 0.5,
    			0.0, 0.0, 0.0, 1.0
    		);

    		shadowMatrix.multiply( _projScreenMatrix$1 );

    	}

    	getViewport( viewportIndex ) {

    		return this._viewports[ viewportIndex ];

    	}

    	getFrameExtents() {

    		return this._frameExtents;

    	}

    	dispose() {

    		if ( this.map ) {

    			this.map.dispose();

    		}

    		if ( this.mapPass ) {

    			this.mapPass.dispose();

    		}

    	}

    	copy( source ) {

    		this.camera = source.camera.clone();

    		this.bias = source.bias;
    		this.radius = source.radius;

    		this.mapSize.copy( source.mapSize );

    		return this;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	toJSON() {

    		const object = {};

    		if ( this.bias !== 0 ) object.bias = this.bias;
    		if ( this.normalBias !== 0 ) object.normalBias = this.normalBias;
    		if ( this.radius !== 1 ) object.radius = this.radius;
    		if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();

    		object.camera = this.camera.toJSON( false ).object;
    		delete object.camera.matrix;

    		return object;

    	}

    }

    class SpotLightShadow extends LightShadow {

    	constructor() {

    		super( new PerspectiveCamera( 50, 1, 0.5, 500 ) );

    		this.isSpotLightShadow = true;

    		this.focus = 1;

    	}

    	updateMatrices( light ) {

    		const camera = this.camera;

    		const fov = RAD2DEG * 2 * light.angle * this.focus;
    		const aspect = this.mapSize.width / this.mapSize.height;
    		const far = light.distance || camera.far;

    		if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {

    			camera.fov = fov;
    			camera.aspect = aspect;
    			camera.far = far;
    			camera.updateProjectionMatrix();

    		}

    		super.updateMatrices( light );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.focus = source.focus;

    		return this;

    	}

    }

    class SpotLight extends Light {

    	constructor( color, intensity, distance = 0, angle = Math.PI / 3, penumbra = 0, decay = 1 ) {

    		super( color, intensity );

    		this.isSpotLight = true;

    		this.type = 'SpotLight';

    		this.position.copy( Object3D.DefaultUp );
    		this.updateMatrix();

    		this.target = new Object3D();

    		this.distance = distance;
    		this.angle = angle;
    		this.penumbra = penumbra;
    		this.decay = decay; // for physically correct lights, should be 2.

    		this.map = null;

    		this.shadow = new SpotLightShadow();

    	}

    	get power() {

    		// compute the light's luminous power (in lumens) from its intensity (in candela)
    		// by convention for a spotlight, luminous power (lm) = π * luminous intensity (cd)
    		return this.intensity * Math.PI;

    	}

    	set power( power ) {

    		// set the light's intensity (in candela) from the desired luminous power (in lumens)
    		this.intensity = power / Math.PI;

    	}

    	dispose() {

    		this.shadow.dispose();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.distance = source.distance;
    		this.angle = source.angle;
    		this.penumbra = source.penumbra;
    		this.decay = source.decay;

    		this.target = source.target.clone();

    		this.shadow = source.shadow.clone();

    		return this;

    	}

    }

    const _projScreenMatrix = /*@__PURE__*/ new Matrix4();
    const _lightPositionWorld = /*@__PURE__*/ new Vector3();
    const _lookTarget = /*@__PURE__*/ new Vector3();

    class PointLightShadow extends LightShadow {

    	constructor() {

    		super( new PerspectiveCamera( 90, 1, 0.5, 500 ) );

    		this.isPointLightShadow = true;

    		this._frameExtents = new Vector2( 4, 2 );

    		this._viewportCount = 6;

    		this._viewports = [
    			// These viewports map a cube-map onto a 2D texture with the
    			// following orientation:
    			//
    			//  xzXZ
    			//   y Y
    			//
    			// X - Positive x direction
    			// x - Negative x direction
    			// Y - Positive y direction
    			// y - Negative y direction
    			// Z - Positive z direction
    			// z - Negative z direction

    			// positive X
    			new Vector4( 2, 1, 1, 1 ),
    			// negative X
    			new Vector4( 0, 1, 1, 1 ),
    			// positive Z
    			new Vector4( 3, 1, 1, 1 ),
    			// negative Z
    			new Vector4( 1, 1, 1, 1 ),
    			// positive Y
    			new Vector4( 3, 0, 1, 1 ),
    			// negative Y
    			new Vector4( 1, 0, 1, 1 )
    		];

    		this._cubeDirections = [
    			new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),
    			new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )
    		];

    		this._cubeUps = [
    			new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),
    			new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),	new Vector3( 0, 0, - 1 )
    		];

    	}

    	updateMatrices( light, viewportIndex = 0 ) {

    		const camera = this.camera;
    		const shadowMatrix = this.matrix;

    		const far = light.distance || camera.far;

    		if ( far !== camera.far ) {

    			camera.far = far;
    			camera.updateProjectionMatrix();

    		}

    		_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
    		camera.position.copy( _lightPositionWorld );

    		_lookTarget.copy( camera.position );
    		_lookTarget.add( this._cubeDirections[ viewportIndex ] );
    		camera.up.copy( this._cubeUps[ viewportIndex ] );
    		camera.lookAt( _lookTarget );
    		camera.updateMatrixWorld();

    		shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );

    		_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
    		this._frustum.setFromProjectionMatrix( _projScreenMatrix );

    	}

    }

    class PointLight extends Light {

    	constructor( color, intensity, distance = 0, decay = 1 ) {

    		super( color, intensity );

    		this.isPointLight = true;

    		this.type = 'PointLight';

    		this.distance = distance;
    		this.decay = decay; // for physically correct lights, should be 2.

    		this.shadow = new PointLightShadow();

    	}

    	get power() {

    		// compute the light's luminous power (in lumens) from its intensity (in candela)
    		// for an isotropic light source, luminous power (lm) = 4 π luminous intensity (cd)
    		return this.intensity * 4 * Math.PI;

    	}

    	set power( power ) {

    		// set the light's intensity (in candela) from the desired luminous power (in lumens)
    		this.intensity = power / ( 4 * Math.PI );

    	}

    	dispose() {

    		this.shadow.dispose();

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.distance = source.distance;
    		this.decay = source.decay;

    		this.shadow = source.shadow.clone();

    		return this;

    	}

    }

    class DirectionalLightShadow extends LightShadow {

    	constructor() {

    		super( new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );

    		this.isDirectionalLightShadow = true;

    	}

    }

    class DirectionalLight extends Light {

    	constructor( color, intensity ) {

    		super( color, intensity );

    		this.isDirectionalLight = true;

    		this.type = 'DirectionalLight';

    		this.position.copy( Object3D.DefaultUp );
    		this.updateMatrix();

    		this.target = new Object3D();

    		this.shadow = new DirectionalLightShadow();

    	}

    	dispose() {

    		this.shadow.dispose();

    	}

    	copy( source ) {

    		super.copy( source );

    		this.target = source.target.clone();
    		this.shadow = source.shadow.clone();

    		return this;

    	}

    }

    class AmbientLight extends Light {

    	constructor( color, intensity ) {

    		super( color, intensity );

    		this.isAmbientLight = true;

    		this.type = 'AmbientLight';

    	}

    }

    class RectAreaLight extends Light {

    	constructor( color, intensity, width = 10, height = 10 ) {

    		super( color, intensity );

    		this.isRectAreaLight = true;

    		this.type = 'RectAreaLight';

    		this.width = width;
    		this.height = height;

    	}

    	get power() {

    		// compute the light's luminous power (in lumens) from its intensity (in nits)
    		return this.intensity * this.width * this.height * Math.PI;

    	}

    	set power( power ) {

    		// set the light's intensity (in nits) from the desired luminous power (in lumens)
    		this.intensity = power / ( this.width * this.height * Math.PI );

    	}

    	copy( source ) {

    		super.copy( source );

    		this.width = source.width;
    		this.height = source.height;

    		return this;

    	}

    	toJSON( meta ) {

    		const data = super.toJSON( meta );

    		data.object.width = this.width;
    		data.object.height = this.height;

    		return data;

    	}

    }

    /**
     * Primary reference:
     *   https://graphics.stanford.edu/papers/envmap/envmap.pdf
     *
     * Secondary reference:
     *   https://www.ppsloan.org/publications/StupidSH36.pdf
     */

    // 3-band SH defined by 9 coefficients

    class SphericalHarmonics3 {

    	constructor() {

    		this.isSphericalHarmonics3 = true;

    		this.coefficients = [];

    		for ( let i = 0; i < 9; i ++ ) {

    			this.coefficients.push( new Vector3() );

    		}

    	}

    	set( coefficients ) {

    		for ( let i = 0; i < 9; i ++ ) {

    			this.coefficients[ i ].copy( coefficients[ i ] );

    		}

    		return this;

    	}

    	zero() {

    		for ( let i = 0; i < 9; i ++ ) {

    			this.coefficients[ i ].set( 0, 0, 0 );

    		}

    		return this;

    	}

    	// get the radiance in the direction of the normal
    	// target is a Vector3
    	getAt( normal, target ) {

    		// normal is assumed to be unit length

    		const x = normal.x, y = normal.y, z = normal.z;

    		const coeff = this.coefficients;

    		// band 0
    		target.copy( coeff[ 0 ] ).multiplyScalar( 0.282095 );

    		// band 1
    		target.addScaledVector( coeff[ 1 ], 0.488603 * y );
    		target.addScaledVector( coeff[ 2 ], 0.488603 * z );
    		target.addScaledVector( coeff[ 3 ], 0.488603 * x );

    		// band 2
    		target.addScaledVector( coeff[ 4 ], 1.092548 * ( x * y ) );
    		target.addScaledVector( coeff[ 5 ], 1.092548 * ( y * z ) );
    		target.addScaledVector( coeff[ 6 ], 0.315392 * ( 3.0 * z * z - 1.0 ) );
    		target.addScaledVector( coeff[ 7 ], 1.092548 * ( x * z ) );
    		target.addScaledVector( coeff[ 8 ], 0.546274 * ( x * x - y * y ) );

    		return target;

    	}

    	// get the irradiance (radiance convolved with cosine lobe) in the direction of the normal
    	// target is a Vector3
    	// https://graphics.stanford.edu/papers/envmap/envmap.pdf
    	getIrradianceAt( normal, target ) {

    		// normal is assumed to be unit length

    		const x = normal.x, y = normal.y, z = normal.z;

    		const coeff = this.coefficients;

    		// band 0
    		target.copy( coeff[ 0 ] ).multiplyScalar( 0.886227 ); // π * 0.282095

    		// band 1
    		target.addScaledVector( coeff[ 1 ], 2.0 * 0.511664 * y ); // ( 2 * π / 3 ) * 0.488603
    		target.addScaledVector( coeff[ 2 ], 2.0 * 0.511664 * z );
    		target.addScaledVector( coeff[ 3 ], 2.0 * 0.511664 * x );

    		// band 2
    		target.addScaledVector( coeff[ 4 ], 2.0 * 0.429043 * x * y ); // ( π / 4 ) * 1.092548
    		target.addScaledVector( coeff[ 5 ], 2.0 * 0.429043 * y * z );
    		target.addScaledVector( coeff[ 6 ], 0.743125 * z * z - 0.247708 ); // ( π / 4 ) * 0.315392 * 3
    		target.addScaledVector( coeff[ 7 ], 2.0 * 0.429043 * x * z );
    		target.addScaledVector( coeff[ 8 ], 0.429043 * ( x * x - y * y ) ); // ( π / 4 ) * 0.546274

    		return target;

    	}

    	add( sh ) {

    		for ( let i = 0; i < 9; i ++ ) {

    			this.coefficients[ i ].add( sh.coefficients[ i ] );

    		}

    		return this;

    	}

    	addScaledSH( sh, s ) {

    		for ( let i = 0; i < 9; i ++ ) {

    			this.coefficients[ i ].addScaledVector( sh.coefficients[ i ], s );

    		}

    		return this;

    	}

    	scale( s ) {

    		for ( let i = 0; i < 9; i ++ ) {

    			this.coefficients[ i ].multiplyScalar( s );

    		}

    		return this;

    	}

    	lerp( sh, alpha ) {

    		for ( let i = 0; i < 9; i ++ ) {

    			this.coefficients[ i ].lerp( sh.coefficients[ i ], alpha );

    		}

    		return this;

    	}

    	equals( sh ) {

    		for ( let i = 0; i < 9; i ++ ) {

    			if ( ! this.coefficients[ i ].equals( sh.coefficients[ i ] ) ) {

    				return false;

    			}

    		}

    		return true;

    	}

    	copy( sh ) {

    		return this.set( sh.coefficients );

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	fromArray( array, offset = 0 ) {

    		const coefficients = this.coefficients;

    		for ( let i = 0; i < 9; i ++ ) {

    			coefficients[ i ].fromArray( array, offset + ( i * 3 ) );

    		}

    		return this;

    	}

    	toArray( array = [], offset = 0 ) {

    		const coefficients = this.coefficients;

    		for ( let i = 0; i < 9; i ++ ) {

    			coefficients[ i ].toArray( array, offset + ( i * 3 ) );

    		}

    		return array;

    	}

    	// evaluate the basis functions
    	// shBasis is an Array[ 9 ]
    	static getBasisAt( normal, shBasis ) {

    		// normal is assumed to be unit length

    		const x = normal.x, y = normal.y, z = normal.z;

    		// band 0
    		shBasis[ 0 ] = 0.282095;

    		// band 1
    		shBasis[ 1 ] = 0.488603 * y;
    		shBasis[ 2 ] = 0.488603 * z;
    		shBasis[ 3 ] = 0.488603 * x;

    		// band 2
    		shBasis[ 4 ] = 1.092548 * x * y;
    		shBasis[ 5 ] = 1.092548 * y * z;
    		shBasis[ 6 ] = 0.315392 * ( 3 * z * z - 1 );
    		shBasis[ 7 ] = 1.092548 * x * z;
    		shBasis[ 8 ] = 0.546274 * ( x * x - y * y );

    	}

    }

    class LightProbe extends Light {

    	constructor( sh = new SphericalHarmonics3(), intensity = 1 ) {

    		super( undefined, intensity );

    		this.isLightProbe = true;

    		this.sh = sh;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.sh.copy( source.sh );

    		return this;

    	}

    	fromJSON( json ) {

    		this.intensity = json.intensity; // TODO: Move this bit to Light.fromJSON();
    		this.sh.fromArray( json.sh );

    		return this;

    	}

    	toJSON( meta ) {

    		const data = super.toJSON( meta );

    		data.object.sh = this.sh.toArray();

    		return data;

    	}

    }

    class MaterialLoader extends Loader {

    	constructor( manager ) {

    		super( manager );
    		this.textures = {};

    	}

    	load( url, onLoad, onProgress, onError ) {

    		const scope = this;

    		const loader = new FileLoader( scope.manager );
    		loader.setPath( scope.path );
    		loader.setRequestHeader( scope.requestHeader );
    		loader.setWithCredentials( scope.withCredentials );
    		loader.load( url, function ( text ) {

    			try {

    				onLoad( scope.parse( JSON.parse( text ) ) );

    			} catch ( e ) {

    				if ( onError ) {

    					onError( e );

    				} else {

    					console.error( e );

    				}

    				scope.manager.itemError( url );

    			}

    		}, onProgress, onError );

    	}

    	parse( json ) {

    		const textures = this.textures;

    		function getTexture( name ) {

    			if ( textures[ name ] === undefined ) {

    				console.warn( 'THREE.MaterialLoader: Undefined texture', name );

    			}

    			return textures[ name ];

    		}

    		const material = MaterialLoader.createMaterialFromType( json.type );

    		if ( json.uuid !== undefined ) material.uuid = json.uuid;
    		if ( json.name !== undefined ) material.name = json.name;
    		if ( json.color !== undefined && material.color !== undefined ) material.color.setHex( json.color );
    		if ( json.roughness !== undefined ) material.roughness = json.roughness;
    		if ( json.metalness !== undefined ) material.metalness = json.metalness;
    		if ( json.sheen !== undefined ) material.sheen = json.sheen;
    		if ( json.sheenColor !== undefined ) material.sheenColor = new Color().setHex( json.sheenColor );
    		if ( json.sheenRoughness !== undefined ) material.sheenRoughness = json.sheenRoughness;
    		if ( json.emissive !== undefined && material.emissive !== undefined ) material.emissive.setHex( json.emissive );
    		if ( json.specular !== undefined && material.specular !== undefined ) material.specular.setHex( json.specular );
    		if ( json.specularIntensity !== undefined ) material.specularIntensity = json.specularIntensity;
    		if ( json.specularColor !== undefined && material.specularColor !== undefined ) material.specularColor.setHex( json.specularColor );
    		if ( json.shininess !== undefined ) material.shininess = json.shininess;
    		if ( json.clearcoat !== undefined ) material.clearcoat = json.clearcoat;
    		if ( json.clearcoatRoughness !== undefined ) material.clearcoatRoughness = json.clearcoatRoughness;
    		if ( json.iridescence !== undefined ) material.iridescence = json.iridescence;
    		if ( json.iridescenceIOR !== undefined ) material.iridescenceIOR = json.iridescenceIOR;
    		if ( json.iridescenceThicknessRange !== undefined ) material.iridescenceThicknessRange = json.iridescenceThicknessRange;
    		if ( json.transmission !== undefined ) material.transmission = json.transmission;
    		if ( json.thickness !== undefined ) material.thickness = json.thickness;
    		if ( json.attenuationDistance !== undefined ) material.attenuationDistance = json.attenuationDistance;
    		if ( json.attenuationColor !== undefined && material.attenuationColor !== undefined ) material.attenuationColor.setHex( json.attenuationColor );
    		if ( json.fog !== undefined ) material.fog = json.fog;
    		if ( json.flatShading !== undefined ) material.flatShading = json.flatShading;
    		if ( json.blending !== undefined ) material.blending = json.blending;
    		if ( json.combine !== undefined ) material.combine = json.combine;
    		if ( json.side !== undefined ) material.side = json.side;
    		if ( json.shadowSide !== undefined ) material.shadowSide = json.shadowSide;
    		if ( json.opacity !== undefined ) material.opacity = json.opacity;
    		if ( json.transparent !== undefined ) material.transparent = json.transparent;
    		if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
    		if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
    		if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
    		if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;

    		if ( json.stencilWrite !== undefined ) material.stencilWrite = json.stencilWrite;
    		if ( json.stencilWriteMask !== undefined ) material.stencilWriteMask = json.stencilWriteMask;
    		if ( json.stencilFunc !== undefined ) material.stencilFunc = json.stencilFunc;
    		if ( json.stencilRef !== undefined ) material.stencilRef = json.stencilRef;
    		if ( json.stencilFuncMask !== undefined ) material.stencilFuncMask = json.stencilFuncMask;
    		if ( json.stencilFail !== undefined ) material.stencilFail = json.stencilFail;
    		if ( json.stencilZFail !== undefined ) material.stencilZFail = json.stencilZFail;
    		if ( json.stencilZPass !== undefined ) material.stencilZPass = json.stencilZPass;

    		if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
    		if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;
    		if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;
    		if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;

    		if ( json.rotation !== undefined ) material.rotation = json.rotation;

    		if ( json.linewidth !== 1 ) material.linewidth = json.linewidth;
    		if ( json.dashSize !== undefined ) material.dashSize = json.dashSize;
    		if ( json.gapSize !== undefined ) material.gapSize = json.gapSize;
    		if ( json.scale !== undefined ) material.scale = json.scale;

    		if ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset;
    		if ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor;
    		if ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits;

    		if ( json.dithering !== undefined ) material.dithering = json.dithering;

    		if ( json.alphaToCoverage !== undefined ) material.alphaToCoverage = json.alphaToCoverage;
    		if ( json.premultipliedAlpha !== undefined ) material.premultipliedAlpha = json.premultipliedAlpha;

    		if ( json.visible !== undefined ) material.visible = json.visible;

    		if ( json.toneMapped !== undefined ) material.toneMapped = json.toneMapped;

    		if ( json.userData !== undefined ) material.userData = json.userData;

    		if ( json.vertexColors !== undefined ) {

    			if ( typeof json.vertexColors === 'number' ) {

    				material.vertexColors = ( json.vertexColors > 0 ) ? true : false;

    			} else {

    				material.vertexColors = json.vertexColors;

    			}

    		}

    		// Shader Material

    		if ( json.uniforms !== undefined ) {

    			for ( const name in json.uniforms ) {

    				const uniform = json.uniforms[ name ];

    				material.uniforms[ name ] = {};

    				switch ( uniform.type ) {

    					case 't':
    						material.uniforms[ name ].value = getTexture( uniform.value );
    						break;

    					case 'c':
    						material.uniforms[ name ].value = new Color().setHex( uniform.value );
    						break;

    					case 'v2':
    						material.uniforms[ name ].value = new Vector2().fromArray( uniform.value );
    						break;

    					case 'v3':
    						material.uniforms[ name ].value = new Vector3().fromArray( uniform.value );
    						break;

    					case 'v4':
    						material.uniforms[ name ].value = new Vector4().fromArray( uniform.value );
    						break;

    					case 'm3':
    						material.uniforms[ name ].value = new Matrix3().fromArray( uniform.value );
    						break;

    					case 'm4':
    						material.uniforms[ name ].value = new Matrix4().fromArray( uniform.value );
    						break;

    					default:
    						material.uniforms[ name ].value = uniform.value;

    				}

    			}

    		}

    		if ( json.defines !== undefined ) material.defines = json.defines;
    		if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
    		if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;
    		if ( json.glslVersion !== undefined ) material.glslVersion = json.glslVersion;

    		if ( json.extensions !== undefined ) {

    			for ( const key in json.extensions ) {

    				material.extensions[ key ] = json.extensions[ key ];

    			}

    		}

    		// for PointsMaterial

    		if ( json.size !== undefined ) material.size = json.size;
    		if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;

    		// maps

    		if ( json.map !== undefined ) material.map = getTexture( json.map );
    		if ( json.matcap !== undefined ) material.matcap = getTexture( json.matcap );

    		if ( json.alphaMap !== undefined ) material.alphaMap = getTexture( json.alphaMap );

    		if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );
    		if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;

    		if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );
    		if ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType;
    		if ( json.normalScale !== undefined ) {

    			let normalScale = json.normalScale;

    			if ( Array.isArray( normalScale ) === false ) {

    				// Blender exporter used to export a scalar. See #7459

    				normalScale = [ normalScale, normalScale ];

    			}

    			material.normalScale = new Vector2().fromArray( normalScale );

    		}

    		if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );
    		if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
    		if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;

    		if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );
    		if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );

    		if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );
    		if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;

    		if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );
    		if ( json.specularIntensityMap !== undefined ) material.specularIntensityMap = getTexture( json.specularIntensityMap );
    		if ( json.specularColorMap !== undefined ) material.specularColorMap = getTexture( json.specularColorMap );

    		if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );
    		if ( json.envMapIntensity !== undefined ) material.envMapIntensity = json.envMapIntensity;

    		if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;
    		if ( json.refractionRatio !== undefined ) material.refractionRatio = json.refractionRatio;

    		if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );
    		if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;

    		if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );
    		if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;

    		if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );

    		if ( json.clearcoatMap !== undefined ) material.clearcoatMap = getTexture( json.clearcoatMap );
    		if ( json.clearcoatRoughnessMap !== undefined ) material.clearcoatRoughnessMap = getTexture( json.clearcoatRoughnessMap );
    		if ( json.clearcoatNormalMap !== undefined ) material.clearcoatNormalMap = getTexture( json.clearcoatNormalMap );
    		if ( json.clearcoatNormalScale !== undefined ) material.clearcoatNormalScale = new Vector2().fromArray( json.clearcoatNormalScale );

    		if ( json.iridescenceMap !== undefined ) material.iridescenceMap = getTexture( json.iridescenceMap );
    		if ( json.iridescenceThicknessMap !== undefined ) material.iridescenceThicknessMap = getTexture( json.iridescenceThicknessMap );

    		if ( json.transmissionMap !== undefined ) material.transmissionMap = getTexture( json.transmissionMap );
    		if ( json.thicknessMap !== undefined ) material.thicknessMap = getTexture( json.thicknessMap );

    		if ( json.sheenColorMap !== undefined ) material.sheenColorMap = getTexture( json.sheenColorMap );
    		if ( json.sheenRoughnessMap !== undefined ) material.sheenRoughnessMap = getTexture( json.sheenRoughnessMap );

    		return material;

    	}

    	setTextures( value ) {

    		this.textures = value;
    		return this;

    	}

    	static createMaterialFromType( type ) {

    		const materialLib = {
    			ShadowMaterial,
    			SpriteMaterial,
    			RawShaderMaterial,
    			ShaderMaterial,
    			PointsMaterial,
    			MeshPhysicalMaterial,
    			MeshStandardMaterial,
    			MeshPhongMaterial,
    			MeshToonMaterial,
    			MeshNormalMaterial,
    			MeshLambertMaterial,
    			MeshDepthMaterial,
    			MeshDistanceMaterial,
    			MeshBasicMaterial,
    			MeshMatcapMaterial,
    			LineDashedMaterial,
    			LineBasicMaterial,
    			Material
    		};

    		return new materialLib[ type ]();

    	}

    }

    class LoaderUtils {

    	static decodeText( array ) {

    		if ( typeof TextDecoder !== 'undefined' ) {

    			return new TextDecoder().decode( array );

    		}

    		// Avoid the String.fromCharCode.apply(null, array) shortcut, which
    		// throws a "maximum call stack size exceeded" error for large arrays.

    		let s = '';

    		for ( let i = 0, il = array.length; i < il; i ++ ) {

    			// Implicitly assumes little-endian.
    			s += String.fromCharCode( array[ i ] );

    		}

    		try {

    			// merges multi-byte utf-8 characters.

    			return decodeURIComponent( escape( s ) );

    		} catch ( e ) { // see #16358

    			return s;

    		}

    	}

    	static extractUrlBase( url ) {

    		const index = url.lastIndexOf( '/' );

    		if ( index === - 1 ) return './';

    		return url.slice( 0, index + 1 );

    	}

    	static resolveURL( url, path ) {

    		// Invalid URL
    		if ( typeof url !== 'string' || url === '' ) return '';

    		// Host Relative URL
    		if ( /^https?:\/\//i.test( path ) && /^\//.test( url ) ) {

    			path = path.replace( /(^https?:\/\/[^\/]+).*/i, '$1' );

    		}

    		// Absolute URL http://,https://,//
    		if ( /^(https?:)?\/\//i.test( url ) ) return url;

    		// Data URI
    		if ( /^data:.*,.*$/i.test( url ) ) return url;

    		// Blob URL
    		if ( /^blob:.*$/i.test( url ) ) return url;

    		// Relative URL
    		return path + url;

    	}

    }

    class InstancedBufferGeometry extends BufferGeometry {

    	constructor() {

    		super();

    		this.isInstancedBufferGeometry = true;

    		this.type = 'InstancedBufferGeometry';
    		this.instanceCount = Infinity;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.instanceCount = source.instanceCount;

    		return this;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	toJSON() {

    		const data = super.toJSON( this );

    		data.instanceCount = this.instanceCount;

    		data.isInstancedBufferGeometry = true;

    		return data;

    	}

    }

    class BufferGeometryLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		const scope = this;

    		const loader = new FileLoader( scope.manager );
    		loader.setPath( scope.path );
    		loader.setRequestHeader( scope.requestHeader );
    		loader.setWithCredentials( scope.withCredentials );
    		loader.load( url, function ( text ) {

    			try {

    				onLoad( scope.parse( JSON.parse( text ) ) );

    			} catch ( e ) {

    				if ( onError ) {

    					onError( e );

    				} else {

    					console.error( e );

    				}

    				scope.manager.itemError( url );

    			}

    		}, onProgress, onError );

    	}

    	parse( json ) {

    		const interleavedBufferMap = {};
    		const arrayBufferMap = {};

    		function getInterleavedBuffer( json, uuid ) {

    			if ( interleavedBufferMap[ uuid ] !== undefined ) return interleavedBufferMap[ uuid ];

    			const interleavedBuffers = json.interleavedBuffers;
    			const interleavedBuffer = interleavedBuffers[ uuid ];

    			const buffer = getArrayBuffer( json, interleavedBuffer.buffer );

    			const array = getTypedArray( interleavedBuffer.type, buffer );
    			const ib = new InterleavedBuffer( array, interleavedBuffer.stride );
    			ib.uuid = interleavedBuffer.uuid;

    			interleavedBufferMap[ uuid ] = ib;

    			return ib;

    		}

    		function getArrayBuffer( json, uuid ) {

    			if ( arrayBufferMap[ uuid ] !== undefined ) return arrayBufferMap[ uuid ];

    			const arrayBuffers = json.arrayBuffers;
    			const arrayBuffer = arrayBuffers[ uuid ];

    			const ab = new Uint32Array( arrayBuffer ).buffer;

    			arrayBufferMap[ uuid ] = ab;

    			return ab;

    		}

    		const geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry();

    		const index = json.data.index;

    		if ( index !== undefined ) {

    			const typedArray = getTypedArray( index.type, index.array );
    			geometry.setIndex( new BufferAttribute( typedArray, 1 ) );

    		}

    		const attributes = json.data.attributes;

    		for ( const key in attributes ) {

    			const attribute = attributes[ key ];
    			let bufferAttribute;

    			if ( attribute.isInterleavedBufferAttribute ) {

    				const interleavedBuffer = getInterleavedBuffer( json.data, attribute.data );
    				bufferAttribute = new InterleavedBufferAttribute( interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized );

    			} else {

    				const typedArray = getTypedArray( attribute.type, attribute.array );
    				const bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute;
    				bufferAttribute = new bufferAttributeConstr( typedArray, attribute.itemSize, attribute.normalized );

    			}

    			if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name;
    			if ( attribute.usage !== undefined ) bufferAttribute.setUsage( attribute.usage );

    			if ( attribute.updateRange !== undefined ) {

    				bufferAttribute.updateRange.offset = attribute.updateRange.offset;
    				bufferAttribute.updateRange.count = attribute.updateRange.count;

    			}

    			geometry.setAttribute( key, bufferAttribute );

    		}

    		const morphAttributes = json.data.morphAttributes;

    		if ( morphAttributes ) {

    			for ( const key in morphAttributes ) {

    				const attributeArray = morphAttributes[ key ];

    				const array = [];

    				for ( let i = 0, il = attributeArray.length; i < il; i ++ ) {

    					const attribute = attributeArray[ i ];
    					let bufferAttribute;

    					if ( attribute.isInterleavedBufferAttribute ) {

    						const interleavedBuffer = getInterleavedBuffer( json.data, attribute.data );
    						bufferAttribute = new InterleavedBufferAttribute( interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized );

    					} else {

    						const typedArray = getTypedArray( attribute.type, attribute.array );
    						bufferAttribute = new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized );

    					}

    					if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name;
    					array.push( bufferAttribute );

    				}

    				geometry.morphAttributes[ key ] = array;

    			}

    		}

    		const morphTargetsRelative = json.data.morphTargetsRelative;

    		if ( morphTargetsRelative ) {

    			geometry.morphTargetsRelative = true;

    		}

    		const groups = json.data.groups || json.data.drawcalls || json.data.offsets;

    		if ( groups !== undefined ) {

    			for ( let i = 0, n = groups.length; i !== n; ++ i ) {

    				const group = groups[ i ];

    				geometry.addGroup( group.start, group.count, group.materialIndex );

    			}

    		}

    		const boundingSphere = json.data.boundingSphere;

    		if ( boundingSphere !== undefined ) {

    			const center = new Vector3();

    			if ( boundingSphere.center !== undefined ) {

    				center.fromArray( boundingSphere.center );

    			}

    			geometry.boundingSphere = new Sphere( center, boundingSphere.radius );

    		}

    		if ( json.name ) geometry.name = json.name;
    		if ( json.userData ) geometry.userData = json.userData;

    		return geometry;

    	}

    }

    class ObjectLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		const scope = this;

    		const path = ( this.path === '' ) ? LoaderUtils.extractUrlBase( url ) : this.path;
    		this.resourcePath = this.resourcePath || path;

    		const loader = new FileLoader( this.manager );
    		loader.setPath( this.path );
    		loader.setRequestHeader( this.requestHeader );
    		loader.setWithCredentials( this.withCredentials );
    		loader.load( url, function ( text ) {

    			let json = null;

    			try {

    				json = JSON.parse( text );

    			} catch ( error ) {

    				if ( onError !== undefined ) onError( error );

    				console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message );

    				return;

    			}

    			const metadata = json.metadata;

    			if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {

    				console.error( 'THREE.ObjectLoader: Can\'t load ' + url );
    				return;

    			}

    			scope.parse( json, onLoad );

    		}, onProgress, onError );

    	}

    	async loadAsync( url, onProgress ) {

    		const scope = this;

    		const path = ( this.path === '' ) ? LoaderUtils.extractUrlBase( url ) : this.path;
    		this.resourcePath = this.resourcePath || path;

    		const loader = new FileLoader( this.manager );
    		loader.setPath( this.path );
    		loader.setRequestHeader( this.requestHeader );
    		loader.setWithCredentials( this.withCredentials );

    		const text = await loader.loadAsync( url, onProgress );

    		const json = JSON.parse( text );

    		const metadata = json.metadata;

    		if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {

    			throw new Error( 'THREE.ObjectLoader: Can\'t load ' + url );

    		}

    		return await scope.parseAsync( json );

    	}

    	parse( json, onLoad ) {

    		const animations = this.parseAnimations( json.animations );
    		const shapes = this.parseShapes( json.shapes );
    		const geometries = this.parseGeometries( json.geometries, shapes );

    		const images = this.parseImages( json.images, function () {

    			if ( onLoad !== undefined ) onLoad( object );

    		} );

    		const textures = this.parseTextures( json.textures, images );
    		const materials = this.parseMaterials( json.materials, textures );

    		const object = this.parseObject( json.object, geometries, materials, textures, animations );
    		const skeletons = this.parseSkeletons( json.skeletons, object );

    		this.bindSkeletons( object, skeletons );

    		//

    		if ( onLoad !== undefined ) {

    			let hasImages = false;

    			for ( const uuid in images ) {

    				if ( images[ uuid ].data instanceof HTMLImageElement ) {

    					hasImages = true;
    					break;

    				}

    			}

    			if ( hasImages === false ) onLoad( object );

    		}

    		return object;

    	}

    	async parseAsync( json ) {

    		const animations = this.parseAnimations( json.animations );
    		const shapes = this.parseShapes( json.shapes );
    		const geometries = this.parseGeometries( json.geometries, shapes );

    		const images = await this.parseImagesAsync( json.images );

    		const textures = this.parseTextures( json.textures, images );
    		const materials = this.parseMaterials( json.materials, textures );

    		const object = this.parseObject( json.object, geometries, materials, textures, animations );
    		const skeletons = this.parseSkeletons( json.skeletons, object );

    		this.bindSkeletons( object, skeletons );

    		return object;

    	}

    	parseShapes( json ) {

    		const shapes = {};

    		if ( json !== undefined ) {

    			for ( let i = 0, l = json.length; i < l; i ++ ) {

    				const shape = new Shape().fromJSON( json[ i ] );

    				shapes[ shape.uuid ] = shape;

    			}

    		}

    		return shapes;

    	}

    	parseSkeletons( json, object ) {

    		const skeletons = {};
    		const bones = {};

    		// generate bone lookup table

    		object.traverse( function ( child ) {

    			if ( child.isBone ) bones[ child.uuid ] = child;

    		} );

    		// create skeletons

    		if ( json !== undefined ) {

    			for ( let i = 0, l = json.length; i < l; i ++ ) {

    				const skeleton = new Skeleton().fromJSON( json[ i ], bones );

    				skeletons[ skeleton.uuid ] = skeleton;

    			}

    		}

    		return skeletons;

    	}

    	parseGeometries( json, shapes ) {

    		const geometries = {};

    		if ( json !== undefined ) {

    			const bufferGeometryLoader = new BufferGeometryLoader();

    			for ( let i = 0, l = json.length; i < l; i ++ ) {

    				let geometry;
    				const data = json[ i ];

    				switch ( data.type ) {

    					case 'BufferGeometry':
    					case 'InstancedBufferGeometry':

    						geometry = bufferGeometryLoader.parse( data );
    						break;

    					default:

    						if ( data.type in Geometries ) {

    							geometry = Geometries[ data.type ].fromJSON( data, shapes );

    						} else {

    							console.warn( `THREE.ObjectLoader: Unsupported geometry type "${ data.type }"` );

    						}

    				}

    				geometry.uuid = data.uuid;

    				if ( data.name !== undefined ) geometry.name = data.name;
    				if ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData;

    				geometries[ data.uuid ] = geometry;

    			}

    		}

    		return geometries;

    	}

    	parseMaterials( json, textures ) {

    		const cache = {}; // MultiMaterial
    		const materials = {};

    		if ( json !== undefined ) {

    			const loader = new MaterialLoader();
    			loader.setTextures( textures );

    			for ( let i = 0, l = json.length; i < l; i ++ ) {

    				const data = json[ i ];

    				if ( cache[ data.uuid ] === undefined ) {

    					cache[ data.uuid ] = loader.parse( data );

    				}

    				materials[ data.uuid ] = cache[ data.uuid ];

    			}

    		}

    		return materials;

    	}

    	parseAnimations( json ) {

    		const animations = {};

    		if ( json !== undefined ) {

    			for ( let i = 0; i < json.length; i ++ ) {

    				const data = json[ i ];

    				const clip = AnimationClip.parse( data );

    				animations[ clip.uuid ] = clip;

    			}

    		}

    		return animations;

    	}

    	parseImages( json, onLoad ) {

    		const scope = this;
    		const images = {};

    		let loader;

    		function loadImage( url ) {

    			scope.manager.itemStart( url );

    			return loader.load( url, function () {

    				scope.manager.itemEnd( url );

    			}, undefined, function () {

    				scope.manager.itemError( url );
    				scope.manager.itemEnd( url );

    			} );

    		}

    		function deserializeImage( image ) {

    			if ( typeof image === 'string' ) {

    				const url = image;

    				const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( url ) ? url : scope.resourcePath + url;

    				return loadImage( path );

    			} else {

    				if ( image.data ) {

    					return {
    						data: getTypedArray( image.type, image.data ),
    						width: image.width,
    						height: image.height
    					};

    				} else {

    					return null;

    				}

    			}

    		}

    		if ( json !== undefined && json.length > 0 ) {

    			const manager = new LoadingManager( onLoad );

    			loader = new ImageLoader( manager );
    			loader.setCrossOrigin( this.crossOrigin );

    			for ( let i = 0, il = json.length; i < il; i ++ ) {

    				const image = json[ i ];
    				const url = image.url;

    				if ( Array.isArray( url ) ) {

    					// load array of images e.g CubeTexture

    					const imageArray = [];

    					for ( let j = 0, jl = url.length; j < jl; j ++ ) {

    						const currentUrl = url[ j ];

    						const deserializedImage = deserializeImage( currentUrl );

    						if ( deserializedImage !== null ) {

    							if ( deserializedImage instanceof HTMLImageElement ) {

    								imageArray.push( deserializedImage );

    							} else {

    								// special case: handle array of data textures for cube textures

    								imageArray.push( new DataTexture( deserializedImage.data, deserializedImage.width, deserializedImage.height ) );

    							}

    						}

    					}

    					images[ image.uuid ] = new Source( imageArray );

    				} else {

    					// load single image

    					const deserializedImage = deserializeImage( image.url );
    					images[ image.uuid ] = new Source( deserializedImage );


    				}

    			}

    		}

    		return images;

    	}

    	async parseImagesAsync( json ) {

    		const scope = this;
    		const images = {};

    		let loader;

    		async function deserializeImage( image ) {

    			if ( typeof image === 'string' ) {

    				const url = image;

    				const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( url ) ? url : scope.resourcePath + url;

    				return await loader.loadAsync( path );

    			} else {

    				if ( image.data ) {

    					return {
    						data: getTypedArray( image.type, image.data ),
    						width: image.width,
    						height: image.height
    					};

    				} else {

    					return null;

    				}

    			}

    		}

    		if ( json !== undefined && json.length > 0 ) {

    			loader = new ImageLoader( this.manager );
    			loader.setCrossOrigin( this.crossOrigin );

    			for ( let i = 0, il = json.length; i < il; i ++ ) {

    				const image = json[ i ];
    				const url = image.url;

    				if ( Array.isArray( url ) ) {

    					// load array of images e.g CubeTexture

    					const imageArray = [];

    					for ( let j = 0, jl = url.length; j < jl; j ++ ) {

    						const currentUrl = url[ j ];

    						const deserializedImage = await deserializeImage( currentUrl );

    						if ( deserializedImage !== null ) {

    							if ( deserializedImage instanceof HTMLImageElement ) {

    								imageArray.push( deserializedImage );

    							} else {

    								// special case: handle array of data textures for cube textures

    								imageArray.push( new DataTexture( deserializedImage.data, deserializedImage.width, deserializedImage.height ) );

    							}

    						}

    					}

    					images[ image.uuid ] = new Source( imageArray );

    				} else {

    					// load single image

    					const deserializedImage = await deserializeImage( image.url );
    					images[ image.uuid ] = new Source( deserializedImage );

    				}

    			}

    		}

    		return images;

    	}

    	parseTextures( json, images ) {

    		function parseConstant( value, type ) {

    			if ( typeof value === 'number' ) return value;

    			console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );

    			return type[ value ];

    		}

    		const textures = {};

    		if ( json !== undefined ) {

    			for ( let i = 0, l = json.length; i < l; i ++ ) {

    				const data = json[ i ];

    				if ( data.image === undefined ) {

    					console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );

    				}

    				if ( images[ data.image ] === undefined ) {

    					console.warn( 'THREE.ObjectLoader: Undefined image', data.image );

    				}

    				const source = images[ data.image ];
    				const image = source.data;

    				let texture;

    				if ( Array.isArray( image ) ) {

    					texture = new CubeTexture();

    					if ( image.length === 6 ) texture.needsUpdate = true;

    				} else {

    					if ( image && image.data ) {

    						texture = new DataTexture();

    					} else {

    						texture = new Texture();

    					}

    					if ( image ) texture.needsUpdate = true; // textures can have undefined image data

    				}

    				texture.source = source;

    				texture.uuid = data.uuid;

    				if ( data.name !== undefined ) texture.name = data.name;

    				if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );

    				if ( data.offset !== undefined ) texture.offset.fromArray( data.offset );
    				if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );
    				if ( data.center !== undefined ) texture.center.fromArray( data.center );
    				if ( data.rotation !== undefined ) texture.rotation = data.rotation;

    				if ( data.wrap !== undefined ) {

    					texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );
    					texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );

    				}

    				if ( data.format !== undefined ) texture.format = data.format;
    				if ( data.type !== undefined ) texture.type = data.type;
    				if ( data.encoding !== undefined ) texture.encoding = data.encoding;

    				if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );
    				if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );
    				if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;

    				if ( data.flipY !== undefined ) texture.flipY = data.flipY;

    				if ( data.premultiplyAlpha !== undefined ) texture.premultiplyAlpha = data.premultiplyAlpha;
    				if ( data.unpackAlignment !== undefined ) texture.unpackAlignment = data.unpackAlignment;

    				if ( data.userData !== undefined ) texture.userData = data.userData;

    				textures[ data.uuid ] = texture;

    			}

    		}

    		return textures;

    	}

    	parseObject( data, geometries, materials, textures, animations ) {

    		let object;

    		function getGeometry( name ) {

    			if ( geometries[ name ] === undefined ) {

    				console.warn( 'THREE.ObjectLoader: Undefined geometry', name );

    			}

    			return geometries[ name ];

    		}

    		function getMaterial( name ) {

    			if ( name === undefined ) return undefined;

    			if ( Array.isArray( name ) ) {

    				const array = [];

    				for ( let i = 0, l = name.length; i < l; i ++ ) {

    					const uuid = name[ i ];

    					if ( materials[ uuid ] === undefined ) {

    						console.warn( 'THREE.ObjectLoader: Undefined material', uuid );

    					}

    					array.push( materials[ uuid ] );

    				}

    				return array;

    			}

    			if ( materials[ name ] === undefined ) {

    				console.warn( 'THREE.ObjectLoader: Undefined material', name );

    			}

    			return materials[ name ];

    		}

    		function getTexture( uuid ) {

    			if ( textures[ uuid ] === undefined ) {

    				console.warn( 'THREE.ObjectLoader: Undefined texture', uuid );

    			}

    			return textures[ uuid ];

    		}

    		let geometry, material;

    		switch ( data.type ) {

    			case 'Scene':

    				object = new Scene();

    				if ( data.background !== undefined ) {

    					if ( Number.isInteger( data.background ) ) {

    						object.background = new Color( data.background );

    					} else {

    						object.background = getTexture( data.background );

    					}

    				}

    				if ( data.environment !== undefined ) {

    					object.environment = getTexture( data.environment );

    				}

    				if ( data.fog !== undefined ) {

    					if ( data.fog.type === 'Fog' ) {

    						object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );

    					} else if ( data.fog.type === 'FogExp2' ) {

    						object.fog = new FogExp2( data.fog.color, data.fog.density );

    					}

    				}

    				break;

    			case 'PerspectiveCamera':

    				object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );

    				if ( data.focus !== undefined ) object.focus = data.focus;
    				if ( data.zoom !== undefined ) object.zoom = data.zoom;
    				if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;
    				if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;
    				if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );

    				break;

    			case 'OrthographicCamera':

    				object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );

    				if ( data.zoom !== undefined ) object.zoom = data.zoom;
    				if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );

    				break;

    			case 'AmbientLight':

    				object = new AmbientLight( data.color, data.intensity );

    				break;

    			case 'DirectionalLight':

    				object = new DirectionalLight( data.color, data.intensity );

    				break;

    			case 'PointLight':

    				object = new PointLight( data.color, data.intensity, data.distance, data.decay );

    				break;

    			case 'RectAreaLight':

    				object = new RectAreaLight( data.color, data.intensity, data.width, data.height );

    				break;

    			case 'SpotLight':

    				object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );

    				break;

    			case 'HemisphereLight':

    				object = new HemisphereLight( data.color, data.groundColor, data.intensity );

    				break;

    			case 'LightProbe':

    				object = new LightProbe().fromJSON( data );

    				break;

    			case 'SkinnedMesh':

    				geometry = getGeometry( data.geometry );
    			 	material = getMaterial( data.material );

    				object = new SkinnedMesh( geometry, material );

    				if ( data.bindMode !== undefined ) object.bindMode = data.bindMode;
    				if ( data.bindMatrix !== undefined ) object.bindMatrix.fromArray( data.bindMatrix );
    				if ( data.skeleton !== undefined ) object.skeleton = data.skeleton;

    				break;

    			case 'Mesh':

    				geometry = getGeometry( data.geometry );
    				material = getMaterial( data.material );

    				object = new Mesh( geometry, material );

    				break;

    			case 'InstancedMesh':

    				geometry = getGeometry( data.geometry );
    				material = getMaterial( data.material );
    				const count = data.count;
    				const instanceMatrix = data.instanceMatrix;
    				const instanceColor = data.instanceColor;

    				object = new InstancedMesh( geometry, material, count );
    				object.instanceMatrix = new InstancedBufferAttribute( new Float32Array( instanceMatrix.array ), 16 );
    				if ( instanceColor !== undefined ) object.instanceColor = new InstancedBufferAttribute( new Float32Array( instanceColor.array ), instanceColor.itemSize );

    				break;

    			case 'LOD':

    				object = new LOD();

    				break;

    			case 'Line':

    				object = new Line( getGeometry( data.geometry ), getMaterial( data.material ) );

    				break;

    			case 'LineLoop':

    				object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );

    				break;

    			case 'LineSegments':

    				object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );

    				break;

    			case 'PointCloud':
    			case 'Points':

    				object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );

    				break;

    			case 'Sprite':

    				object = new Sprite( getMaterial( data.material ) );

    				break;

    			case 'Group':

    				object = new Group();

    				break;

    			case 'Bone':

    				object = new Bone();

    				break;

    			default:

    				object = new Object3D();

    		}

    		object.uuid = data.uuid;

    		if ( data.name !== undefined ) object.name = data.name;

    		if ( data.matrix !== undefined ) {

    			object.matrix.fromArray( data.matrix );

    			if ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate;
    			if ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale );

    		} else {

    			if ( data.position !== undefined ) object.position.fromArray( data.position );
    			if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
    			if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );
    			if ( data.scale !== undefined ) object.scale.fromArray( data.scale );

    		}

    		if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
    		if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;

    		if ( data.shadow ) {

    			if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;
    			if ( data.shadow.normalBias !== undefined ) object.shadow.normalBias = data.shadow.normalBias;
    			if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;
    			if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );
    			if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );

    		}

    		if ( data.visible !== undefined ) object.visible = data.visible;
    		if ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled;
    		if ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder;
    		if ( data.userData !== undefined ) object.userData = data.userData;
    		if ( data.layers !== undefined ) object.layers.mask = data.layers;

    		if ( data.children !== undefined ) {

    			const children = data.children;

    			for ( let i = 0; i < children.length; i ++ ) {

    				object.add( this.parseObject( children[ i ], geometries, materials, textures, animations ) );

    			}

    		}

    		if ( data.animations !== undefined ) {

    			const objectAnimations = data.animations;

    			for ( let i = 0; i < objectAnimations.length; i ++ ) {

    				const uuid = objectAnimations[ i ];

    				object.animations.push( animations[ uuid ] );

    			}

    		}

    		if ( data.type === 'LOD' ) {

    			if ( data.autoUpdate !== undefined ) object.autoUpdate = data.autoUpdate;

    			const levels = data.levels;

    			for ( let l = 0; l < levels.length; l ++ ) {

    				const level = levels[ l ];
    				const child = object.getObjectByProperty( 'uuid', level.object );

    				if ( child !== undefined ) {

    					object.addLevel( child, level.distance );

    				}

    			}

    		}

    		return object;

    	}

    	bindSkeletons( object, skeletons ) {

    		if ( Object.keys( skeletons ).length === 0 ) return;

    		object.traverse( function ( child ) {

    			if ( child.isSkinnedMesh === true && child.skeleton !== undefined ) {

    				const skeleton = skeletons[ child.skeleton ];

    				if ( skeleton === undefined ) {

    					console.warn( 'THREE.ObjectLoader: No skeleton found with UUID:', child.skeleton );

    				} else {

    					child.bind( skeleton, child.bindMatrix );

    				}

    			}

    		} );

    	}

    }

    const TEXTURE_MAPPING = {
    	UVMapping: UVMapping,
    	CubeReflectionMapping: CubeReflectionMapping,
    	CubeRefractionMapping: CubeRefractionMapping,
    	EquirectangularReflectionMapping: EquirectangularReflectionMapping,
    	EquirectangularRefractionMapping: EquirectangularRefractionMapping,
    	CubeUVReflectionMapping: CubeUVReflectionMapping
    };

    const TEXTURE_WRAPPING = {
    	RepeatWrapping: RepeatWrapping,
    	ClampToEdgeWrapping: ClampToEdgeWrapping,
    	MirroredRepeatWrapping: MirroredRepeatWrapping
    };

    const TEXTURE_FILTER = {
    	NearestFilter: NearestFilter,
    	NearestMipmapNearestFilter: NearestMipmapNearestFilter,
    	NearestMipmapLinearFilter: NearestMipmapLinearFilter,
    	LinearFilter: LinearFilter,
    	LinearMipmapNearestFilter: LinearMipmapNearestFilter,
    	LinearMipmapLinearFilter: LinearMipmapLinearFilter
    };

    class ImageBitmapLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    		this.isImageBitmapLoader = true;

    		if ( typeof createImageBitmap === 'undefined' ) {

    			console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' );

    		}

    		if ( typeof fetch === 'undefined' ) {

    			console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' );

    		}

    		this.options = { premultiplyAlpha: 'none' };

    	}

    	setOptions( options ) {

    		this.options = options;

    		return this;

    	}

    	load( url, onLoad, onProgress, onError ) {

    		if ( url === undefined ) url = '';

    		if ( this.path !== undefined ) url = this.path + url;

    		url = this.manager.resolveURL( url );

    		const scope = this;

    		const cached = Cache.get( url );

    		if ( cached !== undefined ) {

    			scope.manager.itemStart( url );

    			setTimeout( function () {

    				if ( onLoad ) onLoad( cached );

    				scope.manager.itemEnd( url );

    			}, 0 );

    			return cached;

    		}

    		const fetchOptions = {};
    		fetchOptions.credentials = ( this.crossOrigin === 'anonymous' ) ? 'same-origin' : 'include';
    		fetchOptions.headers = this.requestHeader;

    		fetch( url, fetchOptions ).then( function ( res ) {

    			return res.blob();

    		} ).then( function ( blob ) {

    			return createImageBitmap( blob, Object.assign( scope.options, { colorSpaceConversion: 'none' } ) );

    		} ).then( function ( imageBitmap ) {

    			Cache.add( url, imageBitmap );

    			if ( onLoad ) onLoad( imageBitmap );

    			scope.manager.itemEnd( url );

    		} ).catch( function ( e ) {

    			if ( onError ) onError( e );

    			scope.manager.itemError( url );
    			scope.manager.itemEnd( url );

    		} );

    		scope.manager.itemStart( url );

    	}

    }

    let _context;

    const AudioContext = {

    	getContext: function () {

    		if ( _context === undefined ) {

    			_context = new ( window.AudioContext || window.webkitAudioContext )();

    		}

    		return _context;

    	},

    	setContext: function ( value ) {

    		_context = value;

    	}

    };

    class AudioLoader extends Loader {

    	constructor( manager ) {

    		super( manager );

    	}

    	load( url, onLoad, onProgress, onError ) {

    		const scope = this;

    		const loader = new FileLoader( this.manager );
    		loader.setResponseType( 'arraybuffer' );
    		loader.setPath( this.path );
    		loader.setRequestHeader( this.requestHeader );
    		loader.setWithCredentials( this.withCredentials );
    		loader.load( url, function ( buffer ) {

    			try {

    				// Create a copy of the buffer. The `decodeAudioData` method
    				// detaches the buffer when complete, preventing reuse.
    				const bufferCopy = buffer.slice( 0 );

    				const context = AudioContext.getContext();
    				context.decodeAudioData( bufferCopy, function ( audioBuffer ) {

    					onLoad( audioBuffer );

    				} );

    			} catch ( e ) {

    				if ( onError ) {

    					onError( e );

    				} else {

    					console.error( e );

    				}

    				scope.manager.itemError( url );

    			}

    		}, onProgress, onError );

    	}

    }

    class HemisphereLightProbe extends LightProbe {

    	constructor( skyColor, groundColor, intensity = 1 ) {

    		super( undefined, intensity );

    		this.isHemisphereLightProbe = true;

    		const color1 = new Color().set( skyColor );
    		const color2 = new Color().set( groundColor );

    		const sky = new Vector3( color1.r, color1.g, color1.b );
    		const ground = new Vector3( color2.r, color2.g, color2.b );

    		// without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI );
    		const c0 = Math.sqrt( Math.PI );
    		const c1 = c0 * Math.sqrt( 0.75 );

    		this.sh.coefficients[ 0 ].copy( sky ).add( ground ).multiplyScalar( c0 );
    		this.sh.coefficients[ 1 ].copy( sky ).sub( ground ).multiplyScalar( c1 );

    	}

    }

    class AmbientLightProbe extends LightProbe {

    	constructor( color, intensity = 1 ) {

    		super( undefined, intensity );

    		this.isAmbientLightProbe = true;

    		const color1 = new Color().set( color );

    		// without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );
    		this.sh.coefficients[ 0 ].set( color1.r, color1.g, color1.b ).multiplyScalar( 2 * Math.sqrt( Math.PI ) );

    	}

    }

    const _eyeRight = /*@__PURE__*/ new Matrix4();
    const _eyeLeft = /*@__PURE__*/ new Matrix4();
    const _projectionMatrix = /*@__PURE__*/ new Matrix4();

    class StereoCamera {

    	constructor() {

    		this.type = 'StereoCamera';

    		this.aspect = 1;

    		this.eyeSep = 0.064;

    		this.cameraL = new PerspectiveCamera();
    		this.cameraL.layers.enable( 1 );
    		this.cameraL.matrixAutoUpdate = false;

    		this.cameraR = new PerspectiveCamera();
    		this.cameraR.layers.enable( 2 );
    		this.cameraR.matrixAutoUpdate = false;

    		this._cache = {
    			focus: null,
    			fov: null,
    			aspect: null,
    			near: null,
    			far: null,
    			zoom: null,
    			eyeSep: null
    		};

    	}

    	update( camera ) {

    		const cache = this._cache;

    		const needsUpdate = cache.focus !== camera.focus || cache.fov !== camera.fov ||
    			cache.aspect !== camera.aspect * this.aspect || cache.near !== camera.near ||
    			cache.far !== camera.far || cache.zoom !== camera.zoom || cache.eyeSep !== this.eyeSep;

    		if ( needsUpdate ) {

    			cache.focus = camera.focus;
    			cache.fov = camera.fov;
    			cache.aspect = camera.aspect * this.aspect;
    			cache.near = camera.near;
    			cache.far = camera.far;
    			cache.zoom = camera.zoom;
    			cache.eyeSep = this.eyeSep;

    			// Off-axis stereoscopic effect based on
    			// http://paulbourke.net/stereographics/stereorender/

    			_projectionMatrix.copy( camera.projectionMatrix );
    			const eyeSepHalf = cache.eyeSep / 2;
    			const eyeSepOnProjection = eyeSepHalf * cache.near / cache.focus;
    			const ymax = ( cache.near * Math.tan( DEG2RAD * cache.fov * 0.5 ) ) / cache.zoom;
    			let xmin, xmax;

    			// translate xOffset

    			_eyeLeft.elements[ 12 ] = - eyeSepHalf;
    			_eyeRight.elements[ 12 ] = eyeSepHalf;

    			// for left eye

    			xmin = - ymax * cache.aspect + eyeSepOnProjection;
    			xmax = ymax * cache.aspect + eyeSepOnProjection;

    			_projectionMatrix.elements[ 0 ] = 2 * cache.near / ( xmax - xmin );
    			_projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

    			this.cameraL.projectionMatrix.copy( _projectionMatrix );

    			// for right eye

    			xmin = - ymax * cache.aspect - eyeSepOnProjection;
    			xmax = ymax * cache.aspect - eyeSepOnProjection;

    			_projectionMatrix.elements[ 0 ] = 2 * cache.near / ( xmax - xmin );
    			_projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

    			this.cameraR.projectionMatrix.copy( _projectionMatrix );

    		}

    		this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( _eyeLeft );
    		this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( _eyeRight );

    	}

    }

    class Clock {

    	constructor( autoStart = true ) {

    		this.autoStart = autoStart;

    		this.startTime = 0;
    		this.oldTime = 0;
    		this.elapsedTime = 0;

    		this.running = false;

    	}

    	start() {

    		this.startTime = now();

    		this.oldTime = this.startTime;
    		this.elapsedTime = 0;
    		this.running = true;

    	}

    	stop() {

    		this.getElapsedTime();
    		this.running = false;
    		this.autoStart = false;

    	}

    	getElapsedTime() {

    		this.getDelta();
    		return this.elapsedTime;

    	}

    	getDelta() {

    		let diff = 0;

    		if ( this.autoStart && ! this.running ) {

    			this.start();
    			return 0;

    		}

    		if ( this.running ) {

    			const newTime = now();

    			diff = ( newTime - this.oldTime ) / 1000;
    			this.oldTime = newTime;

    			this.elapsedTime += diff;

    		}

    		return diff;

    	}

    }

    function now() {

    	return ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732

    }

    const _position$1 = /*@__PURE__*/ new Vector3();
    const _quaternion$1 = /*@__PURE__*/ new Quaternion();
    const _scale$1 = /*@__PURE__*/ new Vector3();
    const _orientation$1 = /*@__PURE__*/ new Vector3();

    class AudioListener extends Object3D {

    	constructor() {

    		super();

    		this.type = 'AudioListener';

    		this.context = AudioContext.getContext();

    		this.gain = this.context.createGain();
    		this.gain.connect( this.context.destination );

    		this.filter = null;

    		this.timeDelta = 0;

    		// private

    		this._clock = new Clock();

    	}

    	getInput() {

    		return this.gain;

    	}

    	removeFilter() {

    		if ( this.filter !== null ) {

    			this.gain.disconnect( this.filter );
    			this.filter.disconnect( this.context.destination );
    			this.gain.connect( this.context.destination );
    			this.filter = null;

    		}

    		return this;

    	}

    	getFilter() {

    		return this.filter;

    	}

    	setFilter( value ) {

    		if ( this.filter !== null ) {

    			this.gain.disconnect( this.filter );
    			this.filter.disconnect( this.context.destination );

    		} else {

    			this.gain.disconnect( this.context.destination );

    		}

    		this.filter = value;
    		this.gain.connect( this.filter );
    		this.filter.connect( this.context.destination );

    		return this;

    	}

    	getMasterVolume() {

    		return this.gain.gain.value;

    	}

    	setMasterVolume( value ) {

    		this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );

    		return this;

    	}

    	updateMatrixWorld( force ) {

    		super.updateMatrixWorld( force );

    		const listener = this.context.listener;
    		const up = this.up;

    		this.timeDelta = this._clock.getDelta();

    		this.matrixWorld.decompose( _position$1, _quaternion$1, _scale$1 );

    		_orientation$1.set( 0, 0, - 1 ).applyQuaternion( _quaternion$1 );

    		if ( listener.positionX ) {

    			// code path for Chrome (see #14393)

    			const endTime = this.context.currentTime + this.timeDelta;

    			listener.positionX.linearRampToValueAtTime( _position$1.x, endTime );
    			listener.positionY.linearRampToValueAtTime( _position$1.y, endTime );
    			listener.positionZ.linearRampToValueAtTime( _position$1.z, endTime );
    			listener.forwardX.linearRampToValueAtTime( _orientation$1.x, endTime );
    			listener.forwardY.linearRampToValueAtTime( _orientation$1.y, endTime );
    			listener.forwardZ.linearRampToValueAtTime( _orientation$1.z, endTime );
    			listener.upX.linearRampToValueAtTime( up.x, endTime );
    			listener.upY.linearRampToValueAtTime( up.y, endTime );
    			listener.upZ.linearRampToValueAtTime( up.z, endTime );

    		} else {

    			listener.setPosition( _position$1.x, _position$1.y, _position$1.z );
    			listener.setOrientation( _orientation$1.x, _orientation$1.y, _orientation$1.z, up.x, up.y, up.z );

    		}

    	}

    }

    class Audio extends Object3D {

    	constructor( listener ) {

    		super();

    		this.type = 'Audio';

    		this.listener = listener;
    		this.context = listener.context;

    		this.gain = this.context.createGain();
    		this.gain.connect( listener.getInput() );

    		this.autoplay = false;

    		this.buffer = null;
    		this.detune = 0;
    		this.loop = false;
    		this.loopStart = 0;
    		this.loopEnd = 0;
    		this.offset = 0;
    		this.duration = undefined;
    		this.playbackRate = 1;
    		this.isPlaying = false;
    		this.hasPlaybackControl = true;
    		this.source = null;
    		this.sourceType = 'empty';

    		this._startedAt = 0;
    		this._progress = 0;
    		this._connected = false;

    		this.filters = [];

    	}

    	getOutput() {

    		return this.gain;

    	}

    	setNodeSource( audioNode ) {

    		this.hasPlaybackControl = false;
    		this.sourceType = 'audioNode';
    		this.source = audioNode;
    		this.connect();

    		return this;

    	}

    	setMediaElementSource( mediaElement ) {

    		this.hasPlaybackControl = false;
    		this.sourceType = 'mediaNode';
    		this.source = this.context.createMediaElementSource( mediaElement );
    		this.connect();

    		return this;

    	}

    	setMediaStreamSource( mediaStream ) {

    		this.hasPlaybackControl = false;
    		this.sourceType = 'mediaStreamNode';
    		this.source = this.context.createMediaStreamSource( mediaStream );
    		this.connect();

    		return this;

    	}

    	setBuffer( audioBuffer ) {

    		this.buffer = audioBuffer;
    		this.sourceType = 'buffer';

    		if ( this.autoplay ) this.play();

    		return this;

    	}

    	play( delay = 0 ) {

    		if ( this.isPlaying === true ) {

    			console.warn( 'THREE.Audio: Audio is already playing.' );
    			return;

    		}

    		if ( this.hasPlaybackControl === false ) {

    			console.warn( 'THREE.Audio: this Audio has no playback control.' );
    			return;

    		}

    		this._startedAt = this.context.currentTime + delay;

    		const source = this.context.createBufferSource();
    		source.buffer = this.buffer;
    		source.loop = this.loop;
    		source.loopStart = this.loopStart;
    		source.loopEnd = this.loopEnd;
    		source.onended = this.onEnded.bind( this );
    		source.start( this._startedAt, this._progress + this.offset, this.duration );

    		this.isPlaying = true;

    		this.source = source;

    		this.setDetune( this.detune );
    		this.setPlaybackRate( this.playbackRate );

    		return this.connect();

    	}

    	pause() {

    		if ( this.hasPlaybackControl === false ) {

    			console.warn( 'THREE.Audio: this Audio has no playback control.' );
    			return;

    		}

    		if ( this.isPlaying === true ) {

    			// update current progress

    			this._progress += Math.max( this.context.currentTime - this._startedAt, 0 ) * this.playbackRate;

    			if ( this.loop === true ) {

    				// ensure _progress does not exceed duration with looped audios

    				this._progress = this._progress % ( this.duration || this.buffer.duration );

    			}

    			this.source.stop();
    			this.source.onended = null;

    			this.isPlaying = false;

    		}

    		return this;

    	}

    	stop() {

    		if ( this.hasPlaybackControl === false ) {

    			console.warn( 'THREE.Audio: this Audio has no playback control.' );
    			return;

    		}

    		this._progress = 0;

    		this.source.stop();
    		this.source.onended = null;
    		this.isPlaying = false;

    		return this;

    	}

    	connect() {

    		if ( this.filters.length > 0 ) {

    			this.source.connect( this.filters[ 0 ] );

    			for ( let i = 1, l = this.filters.length; i < l; i ++ ) {

    				this.filters[ i - 1 ].connect( this.filters[ i ] );

    			}

    			this.filters[ this.filters.length - 1 ].connect( this.getOutput() );

    		} else {

    			this.source.connect( this.getOutput() );

    		}

    		this._connected = true;

    		return this;

    	}

    	disconnect() {

    		if ( this.filters.length > 0 ) {

    			this.source.disconnect( this.filters[ 0 ] );

    			for ( let i = 1, l = this.filters.length; i < l; i ++ ) {

    				this.filters[ i - 1 ].disconnect( this.filters[ i ] );

    			}

    			this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );

    		} else {

    			this.source.disconnect( this.getOutput() );

    		}

    		this._connected = false;

    		return this;

    	}

    	getFilters() {

    		return this.filters;

    	}

    	setFilters( value ) {

    		if ( ! value ) value = [];

    		if ( this._connected === true ) {

    			this.disconnect();
    			this.filters = value.slice();
    			this.connect();

    		} else {

    			this.filters = value.slice();

    		}

    		return this;

    	}

    	setDetune( value ) {

    		this.detune = value;

    		if ( this.source.detune === undefined ) return; // only set detune when available

    		if ( this.isPlaying === true ) {

    			this.source.detune.setTargetAtTime( this.detune, this.context.currentTime, 0.01 );

    		}

    		return this;

    	}

    	getDetune() {

    		return this.detune;

    	}

    	getFilter() {

    		return this.getFilters()[ 0 ];

    	}

    	setFilter( filter ) {

    		return this.setFilters( filter ? [ filter ] : [] );

    	}

    	setPlaybackRate( value ) {

    		if ( this.hasPlaybackControl === false ) {

    			console.warn( 'THREE.Audio: this Audio has no playback control.' );
    			return;

    		}

    		this.playbackRate = value;

    		if ( this.isPlaying === true ) {

    			this.source.playbackRate.setTargetAtTime( this.playbackRate, this.context.currentTime, 0.01 );

    		}

    		return this;

    	}

    	getPlaybackRate() {

    		return this.playbackRate;

    	}

    	onEnded() {

    		this.isPlaying = false;

    	}

    	getLoop() {

    		if ( this.hasPlaybackControl === false ) {

    			console.warn( 'THREE.Audio: this Audio has no playback control.' );
    			return false;

    		}

    		return this.loop;

    	}

    	setLoop( value ) {

    		if ( this.hasPlaybackControl === false ) {

    			console.warn( 'THREE.Audio: this Audio has no playback control.' );
    			return;

    		}

    		this.loop = value;

    		if ( this.isPlaying === true ) {

    			this.source.loop = this.loop;

    		}

    		return this;

    	}

    	setLoopStart( value ) {

    		this.loopStart = value;

    		return this;

    	}

    	setLoopEnd( value ) {

    		this.loopEnd = value;

    		return this;

    	}

    	getVolume() {

    		return this.gain.gain.value;

    	}

    	setVolume( value ) {

    		this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );

    		return this;

    	}

    }

    const _position = /*@__PURE__*/ new Vector3();
    const _quaternion = /*@__PURE__*/ new Quaternion();
    const _scale = /*@__PURE__*/ new Vector3();
    const _orientation = /*@__PURE__*/ new Vector3();

    class PositionalAudio extends Audio {

    	constructor( listener ) {

    		super( listener );

    		this.panner = this.context.createPanner();
    		this.panner.panningModel = 'HRTF';
    		this.panner.connect( this.gain );

    	}

    	disconnect() {

    		super.disconnect();

    		this.panner.disconnect( this.gain );

    	}

    	getOutput() {

    		return this.panner;

    	}

    	getRefDistance() {

    		return this.panner.refDistance;

    	}

    	setRefDistance( value ) {

    		this.panner.refDistance = value;

    		return this;

    	}

    	getRolloffFactor() {

    		return this.panner.rolloffFactor;

    	}

    	setRolloffFactor( value ) {

    		this.panner.rolloffFactor = value;

    		return this;

    	}

    	getDistanceModel() {

    		return this.panner.distanceModel;

    	}

    	setDistanceModel( value ) {

    		this.panner.distanceModel = value;

    		return this;

    	}

    	getMaxDistance() {

    		return this.panner.maxDistance;

    	}

    	setMaxDistance( value ) {

    		this.panner.maxDistance = value;

    		return this;

    	}

    	setDirectionalCone( coneInnerAngle, coneOuterAngle, coneOuterGain ) {

    		this.panner.coneInnerAngle = coneInnerAngle;
    		this.panner.coneOuterAngle = coneOuterAngle;
    		this.panner.coneOuterGain = coneOuterGain;

    		return this;

    	}

    	updateMatrixWorld( force ) {

    		super.updateMatrixWorld( force );

    		if ( this.hasPlaybackControl === true && this.isPlaying === false ) return;

    		this.matrixWorld.decompose( _position, _quaternion, _scale );

    		_orientation.set( 0, 0, 1 ).applyQuaternion( _quaternion );

    		const panner = this.panner;

    		if ( panner.positionX ) {

    			// code path for Chrome and Firefox (see #14393)

    			const endTime = this.context.currentTime + this.listener.timeDelta;

    			panner.positionX.linearRampToValueAtTime( _position.x, endTime );
    			panner.positionY.linearRampToValueAtTime( _position.y, endTime );
    			panner.positionZ.linearRampToValueAtTime( _position.z, endTime );
    			panner.orientationX.linearRampToValueAtTime( _orientation.x, endTime );
    			panner.orientationY.linearRampToValueAtTime( _orientation.y, endTime );
    			panner.orientationZ.linearRampToValueAtTime( _orientation.z, endTime );

    		} else {

    			panner.setPosition( _position.x, _position.y, _position.z );
    			panner.setOrientation( _orientation.x, _orientation.y, _orientation.z );

    		}

    	}

    }

    class AudioAnalyser {

    	constructor( audio, fftSize = 2048 ) {

    		this.analyser = audio.context.createAnalyser();
    		this.analyser.fftSize = fftSize;

    		this.data = new Uint8Array( this.analyser.frequencyBinCount );

    		audio.getOutput().connect( this.analyser );

    	}


    	getFrequencyData() {

    		this.analyser.getByteFrequencyData( this.data );

    		return this.data;

    	}

    	getAverageFrequency() {

    		let value = 0;
    		const data = this.getFrequencyData();

    		for ( let i = 0; i < data.length; i ++ ) {

    			value += data[ i ];

    		}

    		return value / data.length;

    	}

    }

    class PropertyMixer {

    	constructor( binding, typeName, valueSize ) {

    		this.binding = binding;
    		this.valueSize = valueSize;

    		let mixFunction,
    			mixFunctionAdditive,
    			setIdentity;

    		// buffer layout: [ incoming | accu0 | accu1 | orig | addAccu | (optional work) ]
    		//
    		// interpolators can use .buffer as their .result
    		// the data then goes to 'incoming'
    		//
    		// 'accu0' and 'accu1' are used frame-interleaved for
    		// the cumulative result and are compared to detect
    		// changes
    		//
    		// 'orig' stores the original state of the property
    		//
    		// 'add' is used for additive cumulative results
    		//
    		// 'work' is optional and is only present for quaternion types. It is used
    		// to store intermediate quaternion multiplication results

    		switch ( typeName ) {

    			case 'quaternion':
    				mixFunction = this._slerp;
    				mixFunctionAdditive = this._slerpAdditive;
    				setIdentity = this._setAdditiveIdentityQuaternion;

    				this.buffer = new Float64Array( valueSize * 6 );
    				this._workIndex = 5;
    				break;

    			case 'string':
    			case 'bool':
    				mixFunction = this._select;

    				// Use the regular mix function and for additive on these types,
    				// additive is not relevant for non-numeric types
    				mixFunctionAdditive = this._select;

    				setIdentity = this._setAdditiveIdentityOther;

    				this.buffer = new Array( valueSize * 5 );
    				break;

    			default:
    				mixFunction = this._lerp;
    				mixFunctionAdditive = this._lerpAdditive;
    				setIdentity = this._setAdditiveIdentityNumeric;

    				this.buffer = new Float64Array( valueSize * 5 );

    		}

    		this._mixBufferRegion = mixFunction;
    		this._mixBufferRegionAdditive = mixFunctionAdditive;
    		this._setIdentity = setIdentity;
    		this._origIndex = 3;
    		this._addIndex = 4;

    		this.cumulativeWeight = 0;
    		this.cumulativeWeightAdditive = 0;

    		this.useCount = 0;
    		this.referenceCount = 0;

    	}

    	// accumulate data in the 'incoming' region into 'accu<i>'
    	accumulate( accuIndex, weight ) {

    		// note: happily accumulating nothing when weight = 0, the caller knows
    		// the weight and shouldn't have made the call in the first place

    		const buffer = this.buffer,
    			stride = this.valueSize,
    			offset = accuIndex * stride + stride;

    		let currentWeight = this.cumulativeWeight;

    		if ( currentWeight === 0 ) {

    			// accuN := incoming * weight

    			for ( let i = 0; i !== stride; ++ i ) {

    				buffer[ offset + i ] = buffer[ i ];

    			}

    			currentWeight = weight;

    		} else {

    			// accuN := accuN + incoming * weight

    			currentWeight += weight;
    			const mix = weight / currentWeight;
    			this._mixBufferRegion( buffer, offset, 0, mix, stride );

    		}

    		this.cumulativeWeight = currentWeight;

    	}

    	// accumulate data in the 'incoming' region into 'add'
    	accumulateAdditive( weight ) {

    		const buffer = this.buffer,
    			stride = this.valueSize,
    			offset = stride * this._addIndex;

    		if ( this.cumulativeWeightAdditive === 0 ) {

    			// add = identity

    			this._setIdentity();

    		}

    		// add := add + incoming * weight

    		this._mixBufferRegionAdditive( buffer, offset, 0, weight, stride );
    		this.cumulativeWeightAdditive += weight;

    	}

    	// apply the state of 'accu<i>' to the binding when accus differ
    	apply( accuIndex ) {

    		const stride = this.valueSize,
    			buffer = this.buffer,
    			offset = accuIndex * stride + stride,

    			weight = this.cumulativeWeight,
    			weightAdditive = this.cumulativeWeightAdditive,

    			binding = this.binding;

    		this.cumulativeWeight = 0;
    		this.cumulativeWeightAdditive = 0;

    		if ( weight < 1 ) {

    			// accuN := accuN + original * ( 1 - cumulativeWeight )

    			const originalValueOffset = stride * this._origIndex;

    			this._mixBufferRegion(
    				buffer, offset, originalValueOffset, 1 - weight, stride );

    		}

    		if ( weightAdditive > 0 ) {

    			// accuN := accuN + additive accuN

    			this._mixBufferRegionAdditive( buffer, offset, this._addIndex * stride, 1, stride );

    		}

    		for ( let i = stride, e = stride + stride; i !== e; ++ i ) {

    			if ( buffer[ i ] !== buffer[ i + stride ] ) {

    				// value has changed -> update scene graph

    				binding.setValue( buffer, offset );
    				break;

    			}

    		}

    	}

    	// remember the state of the bound property and copy it to both accus
    	saveOriginalState() {

    		const binding = this.binding;

    		const buffer = this.buffer,
    			stride = this.valueSize,

    			originalValueOffset = stride * this._origIndex;

    		binding.getValue( buffer, originalValueOffset );

    		// accu[0..1] := orig -- initially detect changes against the original
    		for ( let i = stride, e = originalValueOffset; i !== e; ++ i ) {

    			buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];

    		}

    		// Add to identity for additive
    		this._setIdentity();

    		this.cumulativeWeight = 0;
    		this.cumulativeWeightAdditive = 0;

    	}

    	// apply the state previously taken via 'saveOriginalState' to the binding
    	restoreOriginalState() {

    		const originalValueOffset = this.valueSize * 3;
    		this.binding.setValue( this.buffer, originalValueOffset );

    	}

    	_setAdditiveIdentityNumeric() {

    		const startIndex = this._addIndex * this.valueSize;
    		const endIndex = startIndex + this.valueSize;

    		for ( let i = startIndex; i < endIndex; i ++ ) {

    			this.buffer[ i ] = 0;

    		}

    	}

    	_setAdditiveIdentityQuaternion() {

    		this._setAdditiveIdentityNumeric();
    		this.buffer[ this._addIndex * this.valueSize + 3 ] = 1;

    	}

    	_setAdditiveIdentityOther() {

    		const startIndex = this._origIndex * this.valueSize;
    		const targetIndex = this._addIndex * this.valueSize;

    		for ( let i = 0; i < this.valueSize; i ++ ) {

    			this.buffer[ targetIndex + i ] = this.buffer[ startIndex + i ];

    		}

    	}


    	// mix functions

    	_select( buffer, dstOffset, srcOffset, t, stride ) {

    		if ( t >= 0.5 ) {

    			for ( let i = 0; i !== stride; ++ i ) {

    				buffer[ dstOffset + i ] = buffer[ srcOffset + i ];

    			}

    		}

    	}

    	_slerp( buffer, dstOffset, srcOffset, t ) {

    		Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );

    	}

    	_slerpAdditive( buffer, dstOffset, srcOffset, t, stride ) {

    		const workOffset = this._workIndex * stride;

    		// Store result in intermediate buffer offset
    		Quaternion.multiplyQuaternionsFlat( buffer, workOffset, buffer, dstOffset, buffer, srcOffset );

    		// Slerp to the intermediate result
    		Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, workOffset, t );

    	}

    	_lerp( buffer, dstOffset, srcOffset, t, stride ) {

    		const s = 1 - t;

    		for ( let i = 0; i !== stride; ++ i ) {

    			const j = dstOffset + i;

    			buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;

    		}

    	}

    	_lerpAdditive( buffer, dstOffset, srcOffset, t, stride ) {

    		for ( let i = 0; i !== stride; ++ i ) {

    			const j = dstOffset + i;

    			buffer[ j ] = buffer[ j ] + buffer[ srcOffset + i ] * t;

    		}

    	}

    }

    // Characters [].:/ are reserved for track binding syntax.
    const _RESERVED_CHARS_RE = '\\[\\]\\.:\\/';
    const _reservedRe = new RegExp( '[' + _RESERVED_CHARS_RE + ']', 'g' );

    // Attempts to allow node names from any language. ES5's `\w` regexp matches
    // only latin characters, and the unicode \p{L} is not yet supported. So
    // instead, we exclude reserved characters and match everything else.
    const _wordChar = '[^' + _RESERVED_CHARS_RE + ']';
    const _wordCharOrDot = '[^' + _RESERVED_CHARS_RE.replace( '\\.', '' ) + ']';

    // Parent directories, delimited by '/' or ':'. Currently unused, but must
    // be matched to parse the rest of the track name.
    const _directoryRe = /*@__PURE__*/ /((?:WC+[\/:])*)/.source.replace( 'WC', _wordChar );

    // Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
    const _nodeRe = /*@__PURE__*/ /(WCOD+)?/.source.replace( 'WCOD', _wordCharOrDot );

    // Object on target node, and accessor. May not contain reserved
    // characters. Accessor may contain any character except closing bracket.
    const _objectRe = /*@__PURE__*/ /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace( 'WC', _wordChar );

    // Property and accessor. May not contain reserved characters. Accessor may
    // contain any non-bracket characters.
    const _propertyRe = /*@__PURE__*/ /\.(WC+)(?:\[(.+)\])?/.source.replace( 'WC', _wordChar );

    const _trackRe = new RegExp( ''
    	+ '^'
    	+ _directoryRe
    	+ _nodeRe
    	+ _objectRe
    	+ _propertyRe
    	+ '$'
    );

    const _supportedObjectNames = [ 'material', 'materials', 'bones', 'map' ];

    class Composite {

    	constructor( targetGroup, path, optionalParsedPath ) {

    		const parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );

    		this._targetGroup = targetGroup;
    		this._bindings = targetGroup.subscribe_( path, parsedPath );

    	}

    	getValue( array, offset ) {

    		this.bind(); // bind all binding

    		const firstValidIndex = this._targetGroup.nCachedObjects_,
    			binding = this._bindings[ firstValidIndex ];

    		// and only call .getValue on the first
    		if ( binding !== undefined ) binding.getValue( array, offset );

    	}

    	setValue( array, offset ) {

    		const bindings = this._bindings;

    		for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {

    			bindings[ i ].setValue( array, offset );

    		}

    	}

    	bind() {

    		const bindings = this._bindings;

    		for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {

    			bindings[ i ].bind();

    		}

    	}

    	unbind() {

    		const bindings = this._bindings;

    		for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {

    			bindings[ i ].unbind();

    		}

    	}

    }

    // Note: This class uses a State pattern on a per-method basis:
    // 'bind' sets 'this.getValue' / 'setValue' and shadows the
    // prototype version of these methods with one that represents
    // the bound state. When the property is not found, the methods
    // become no-ops.
    class PropertyBinding {

    	constructor( rootNode, path, parsedPath ) {

    		this.path = path;
    		this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );

    		this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;

    		this.rootNode = rootNode;

    		// initial state of these methods that calls 'bind'
    		this.getValue = this._getValue_unbound;
    		this.setValue = this._setValue_unbound;

    	}


    	static create( root, path, parsedPath ) {

    		if ( ! ( root && root.isAnimationObjectGroup ) ) {

    			return new PropertyBinding( root, path, parsedPath );

    		} else {

    			return new PropertyBinding.Composite( root, path, parsedPath );

    		}

    	}

    	/**
    	 * Replaces spaces with underscores and removes unsupported characters from
    	 * node names, to ensure compatibility with parseTrackName().
    	 *
    	 * @param {string} name Node name to be sanitized.
    	 * @return {string}
    	 */
    	static sanitizeNodeName( name ) {

    		return name.replace( /\s/g, '_' ).replace( _reservedRe, '' );

    	}

    	static parseTrackName( trackName ) {

    		const matches = _trackRe.exec( trackName );

    		if ( matches === null ) {

    			throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );

    		}

    		const results = {
    			// directoryName: matches[ 1 ], // (tschw) currently unused
    			nodeName: matches[ 2 ],
    			objectName: matches[ 3 ],
    			objectIndex: matches[ 4 ],
    			propertyName: matches[ 5 ], // required
    			propertyIndex: matches[ 6 ]
    		};

    		const lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );

    		if ( lastDot !== undefined && lastDot !== - 1 ) {

    			const objectName = results.nodeName.substring( lastDot + 1 );

    			// Object names must be checked against an allowlist. Otherwise, there
    			// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
    			// 'bar' could be the objectName, or part of a nodeName (which can
    			// include '.' characters).
    			if ( _supportedObjectNames.indexOf( objectName ) !== - 1 ) {

    				results.nodeName = results.nodeName.substring( 0, lastDot );
    				results.objectName = objectName;

    			}

    		}

    		if ( results.propertyName === null || results.propertyName.length === 0 ) {

    			throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );

    		}

    		return results;

    	}

    	static findNode( root, nodeName ) {

    		if ( nodeName === undefined || nodeName === '' || nodeName === '.' || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {

    			return root;

    		}

    		// search into skeleton bones.
    		if ( root.skeleton ) {

    			const bone = root.skeleton.getBoneByName( nodeName );

    			if ( bone !== undefined ) {

    				return bone;

    			}

    		}

    		// search into node subtree.
    		if ( root.children ) {

    			const searchNodeSubtree = function ( children ) {

    				for ( let i = 0; i < children.length; i ++ ) {

    					const childNode = children[ i ];

    					if ( childNode.name === nodeName || childNode.uuid === nodeName ) {

    						return childNode;

    					}

    					const result = searchNodeSubtree( childNode.children );

    					if ( result ) return result;

    				}

    				return null;

    			};

    			const subTreeNode = searchNodeSubtree( root.children );

    			if ( subTreeNode ) {

    				return subTreeNode;

    			}

    		}

    		return null;

    	}

    	// these are used to "bind" a nonexistent property
    	_getValue_unavailable() {}
    	_setValue_unavailable() {}

    	// Getters

    	_getValue_direct( buffer, offset ) {

    		buffer[ offset ] = this.targetObject[ this.propertyName ];

    	}

    	_getValue_array( buffer, offset ) {

    		const source = this.resolvedProperty;

    		for ( let i = 0, n = source.length; i !== n; ++ i ) {

    			buffer[ offset ++ ] = source[ i ];

    		}

    	}

    	_getValue_arrayElement( buffer, offset ) {

    		buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];

    	}

    	_getValue_toArray( buffer, offset ) {

    		this.resolvedProperty.toArray( buffer, offset );

    	}

    	// Direct

    	_setValue_direct( buffer, offset ) {

    		this.targetObject[ this.propertyName ] = buffer[ offset ];

    	}

    	_setValue_direct_setNeedsUpdate( buffer, offset ) {

    		this.targetObject[ this.propertyName ] = buffer[ offset ];
    		this.targetObject.needsUpdate = true;

    	}

    	_setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {

    		this.targetObject[ this.propertyName ] = buffer[ offset ];
    		this.targetObject.matrixWorldNeedsUpdate = true;

    	}

    	// EntireArray

    	_setValue_array( buffer, offset ) {

    		const dest = this.resolvedProperty;

    		for ( let i = 0, n = dest.length; i !== n; ++ i ) {

    			dest[ i ] = buffer[ offset ++ ];

    		}

    	}

    	_setValue_array_setNeedsUpdate( buffer, offset ) {

    		const dest = this.resolvedProperty;

    		for ( let i = 0, n = dest.length; i !== n; ++ i ) {

    			dest[ i ] = buffer[ offset ++ ];

    		}

    		this.targetObject.needsUpdate = true;

    	}

    	_setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {

    		const dest = this.resolvedProperty;

    		for ( let i = 0, n = dest.length; i !== n; ++ i ) {

    			dest[ i ] = buffer[ offset ++ ];

    		}

    		this.targetObject.matrixWorldNeedsUpdate = true;

    	}

    	// ArrayElement

    	_setValue_arrayElement( buffer, offset ) {

    		this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];

    	}

    	_setValue_arrayElement_setNeedsUpdate( buffer, offset ) {

    		this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
    		this.targetObject.needsUpdate = true;

    	}

    	_setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {

    		this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
    		this.targetObject.matrixWorldNeedsUpdate = true;

    	}

    	// HasToFromArray

    	_setValue_fromArray( buffer, offset ) {

    		this.resolvedProperty.fromArray( buffer, offset );

    	}

    	_setValue_fromArray_setNeedsUpdate( buffer, offset ) {

    		this.resolvedProperty.fromArray( buffer, offset );
    		this.targetObject.needsUpdate = true;

    	}

    	_setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {

    		this.resolvedProperty.fromArray( buffer, offset );
    		this.targetObject.matrixWorldNeedsUpdate = true;

    	}

    	_getValue_unbound( targetArray, offset ) {

    		this.bind();
    		this.getValue( targetArray, offset );

    	}

    	_setValue_unbound( sourceArray, offset ) {

    		this.bind();
    		this.setValue( sourceArray, offset );

    	}

    	// create getter / setter pair for a property in the scene graph
    	bind() {

    		let targetObject = this.node;
    		const parsedPath = this.parsedPath;

    		const objectName = parsedPath.objectName;
    		const propertyName = parsedPath.propertyName;
    		let propertyIndex = parsedPath.propertyIndex;

    		if ( ! targetObject ) {

    			targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;

    			this.node = targetObject;

    		}

    		// set fail state so we can just 'return' on error
    		this.getValue = this._getValue_unavailable;
    		this.setValue = this._setValue_unavailable;

    		// ensure there is a value node
    		if ( ! targetObject ) {

    			console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
    			return;

    		}

    		if ( objectName ) {

    			let objectIndex = parsedPath.objectIndex;

    			// special cases were we need to reach deeper into the hierarchy to get the face materials....
    			switch ( objectName ) {

    				case 'materials':

    					if ( ! targetObject.material ) {

    						console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
    						return;

    					}

    					if ( ! targetObject.material.materials ) {

    						console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );
    						return;

    					}

    					targetObject = targetObject.material.materials;

    					break;

    				case 'bones':

    					if ( ! targetObject.skeleton ) {

    						console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );
    						return;

    					}

    					// potential future optimization: skip this if propertyIndex is already an integer
    					// and convert the integer string to a true integer.

    					targetObject = targetObject.skeleton.bones;

    					// support resolving morphTarget names into indices.
    					for ( let i = 0; i < targetObject.length; i ++ ) {

    						if ( targetObject[ i ].name === objectIndex ) {

    							objectIndex = i;
    							break;

    						}

    					}

    					break;

    				case 'map':

    					if ( 'map' in targetObject ) {

    						targetObject = targetObject.map;
    						break;

    					}

    					if ( ! targetObject.material ) {

    						console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
    						return;

    					}

    					if ( ! targetObject.material.map ) {

    						console.error( 'THREE.PropertyBinding: Can not bind to material.map as node.material does not have a map.', this );
    						return;

    					}

    					targetObject = targetObject.material.map;
    					break;

    				default:

    					if ( targetObject[ objectName ] === undefined ) {

    						console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );
    						return;

    					}

    					targetObject = targetObject[ objectName ];

    			}


    			if ( objectIndex !== undefined ) {

    				if ( targetObject[ objectIndex ] === undefined ) {

    					console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );
    					return;

    				}

    				targetObject = targetObject[ objectIndex ];

    			}

    		}

    		// resolve property
    		const nodeProperty = targetObject[ propertyName ];

    		if ( nodeProperty === undefined ) {

    			const nodeName = parsedPath.nodeName;

    			console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +
    				'.' + propertyName + ' but it wasn\'t found.', targetObject );
    			return;

    		}

    		// determine versioning scheme
    		let versioning = this.Versioning.None;

    		this.targetObject = targetObject;

    		if ( targetObject.needsUpdate !== undefined ) { // material

    			versioning = this.Versioning.NeedsUpdate;

    		} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform

    			versioning = this.Versioning.MatrixWorldNeedsUpdate;

    		}

    		// determine how the property gets bound
    		let bindingType = this.BindingType.Direct;

    		if ( propertyIndex !== undefined ) {

    			// access a sub element of the property array (only primitives are supported right now)

    			if ( propertyName === 'morphTargetInfluences' ) {

    				// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.

    				// support resolving morphTarget names into indices.
    				if ( ! targetObject.geometry ) {

    					console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );
    					return;

    				}

    				if ( ! targetObject.geometry.morphAttributes ) {

    					console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );
    					return;

    				}

    				if ( targetObject.morphTargetDictionary[ propertyIndex ] !== undefined ) {

    					propertyIndex = targetObject.morphTargetDictionary[ propertyIndex ];

    				}

    			}

    			bindingType = this.BindingType.ArrayElement;

    			this.resolvedProperty = nodeProperty;
    			this.propertyIndex = propertyIndex;

    		} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {

    			// must use copy for Object3D.Euler/Quaternion

    			bindingType = this.BindingType.HasFromToArray;

    			this.resolvedProperty = nodeProperty;

    		} else if ( Array.isArray( nodeProperty ) ) {

    			bindingType = this.BindingType.EntireArray;

    			this.resolvedProperty = nodeProperty;

    		} else {

    			this.propertyName = propertyName;

    		}

    		// select getter / setter
    		this.getValue = this.GetterByBindingType[ bindingType ];
    		this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];

    	}

    	unbind() {

    		this.node = null;

    		// back to the prototype version of getValue / setValue
    		// note: avoiding to mutate the shape of 'this' via 'delete'
    		this.getValue = this._getValue_unbound;
    		this.setValue = this._setValue_unbound;

    	}

    }

    PropertyBinding.Composite = Composite;

    PropertyBinding.prototype.BindingType = {
    	Direct: 0,
    	EntireArray: 1,
    	ArrayElement: 2,
    	HasFromToArray: 3
    };

    PropertyBinding.prototype.Versioning = {
    	None: 0,
    	NeedsUpdate: 1,
    	MatrixWorldNeedsUpdate: 2
    };

    PropertyBinding.prototype.GetterByBindingType = [

    	PropertyBinding.prototype._getValue_direct,
    	PropertyBinding.prototype._getValue_array,
    	PropertyBinding.prototype._getValue_arrayElement,
    	PropertyBinding.prototype._getValue_toArray,

    ];

    PropertyBinding.prototype.SetterByBindingTypeAndVersioning = [

    	[
    		// Direct
    		PropertyBinding.prototype._setValue_direct,
    		PropertyBinding.prototype._setValue_direct_setNeedsUpdate,
    		PropertyBinding.prototype._setValue_direct_setMatrixWorldNeedsUpdate,

    	], [

    		// EntireArray

    		PropertyBinding.prototype._setValue_array,
    		PropertyBinding.prototype._setValue_array_setNeedsUpdate,
    		PropertyBinding.prototype._setValue_array_setMatrixWorldNeedsUpdate,

    	], [

    		// ArrayElement
    		PropertyBinding.prototype._setValue_arrayElement,
    		PropertyBinding.prototype._setValue_arrayElement_setNeedsUpdate,
    		PropertyBinding.prototype._setValue_arrayElement_setMatrixWorldNeedsUpdate,

    	], [

    		// HasToFromArray
    		PropertyBinding.prototype._setValue_fromArray,
    		PropertyBinding.prototype._setValue_fromArray_setNeedsUpdate,
    		PropertyBinding.prototype._setValue_fromArray_setMatrixWorldNeedsUpdate,

    	]

    ];

    /**
     *
     * A group of objects that receives a shared animation state.
     *
     * Usage:
     *
     *  - Add objects you would otherwise pass as 'root' to the
     *    constructor or the .clipAction method of AnimationMixer.
     *
     *  - Instead pass this object as 'root'.
     *
     *  - You can also add and remove objects later when the mixer
     *    is running.
     *
     * Note:
     *
     *    Objects of this class appear as one object to the mixer,
     *    so cache control of the individual objects must be done
     *    on the group.
     *
     * Limitation:
     *
     *  - The animated properties must be compatible among the
     *    all objects in the group.
     *
     *  - A single property can either be controlled through a
     *    target group or directly, but not both.
     */

    class AnimationObjectGroup {

    	constructor() {

    		this.isAnimationObjectGroup = true;

    		this.uuid = generateUUID();

    		// cached objects followed by the active ones
    		this._objects = Array.prototype.slice.call( arguments );

    		this.nCachedObjects_ = 0; // threshold
    		// note: read by PropertyBinding.Composite

    		const indices = {};
    		this._indicesByUUID = indices; // for bookkeeping

    		for ( let i = 0, n = arguments.length; i !== n; ++ i ) {

    			indices[ arguments[ i ].uuid ] = i;

    		}

    		this._paths = []; // inside: string
    		this._parsedPaths = []; // inside: { we don't care, here }
    		this._bindings = []; // inside: Array< PropertyBinding >
    		this._bindingsIndicesByPath = {}; // inside: indices in these arrays

    		const scope = this;

    		this.stats = {

    			objects: {
    				get total() {

    					return scope._objects.length;

    				},
    				get inUse() {

    					return this.total - scope.nCachedObjects_;

    				}
    			},
    			get bindingsPerObject() {

    				return scope._bindings.length;

    			}

    		};

    	}

    	add() {

    		const objects = this._objects,
    			indicesByUUID = this._indicesByUUID,
    			paths = this._paths,
    			parsedPaths = this._parsedPaths,
    			bindings = this._bindings,
    			nBindings = bindings.length;

    		let knownObject = undefined,
    			nObjects = objects.length,
    			nCachedObjects = this.nCachedObjects_;

    		for ( let i = 0, n = arguments.length; i !== n; ++ i ) {

    			const object = arguments[ i ],
    				uuid = object.uuid;
    			let index = indicesByUUID[ uuid ];

    			if ( index === undefined ) {

    				// unknown object -> add it to the ACTIVE region

    				index = nObjects ++;
    				indicesByUUID[ uuid ] = index;
    				objects.push( object );

    				// accounting is done, now do the same for all bindings

    				for ( let j = 0, m = nBindings; j !== m; ++ j ) {

    					bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );

    				}

    			} else if ( index < nCachedObjects ) {

    				knownObject = objects[ index ];

    				// move existing object to the ACTIVE region

    				const firstActiveIndex = -- nCachedObjects,
    					lastCachedObject = objects[ firstActiveIndex ];

    				indicesByUUID[ lastCachedObject.uuid ] = index;
    				objects[ index ] = lastCachedObject;

    				indicesByUUID[ uuid ] = firstActiveIndex;
    				objects[ firstActiveIndex ] = object;

    				// accounting is done, now do the same for all bindings

    				for ( let j = 0, m = nBindings; j !== m; ++ j ) {

    					const bindingsForPath = bindings[ j ],
    						lastCached = bindingsForPath[ firstActiveIndex ];

    					let binding = bindingsForPath[ index ];

    					bindingsForPath[ index ] = lastCached;

    					if ( binding === undefined ) {

    						// since we do not bother to create new bindings
    						// for objects that are cached, the binding may
    						// or may not exist

    						binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );

    					}

    					bindingsForPath[ firstActiveIndex ] = binding;

    				}

    			} else if ( objects[ index ] !== knownObject ) {

    				console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +
    					'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );

    			} // else the object is already where we want it to be

    		} // for arguments

    		this.nCachedObjects_ = nCachedObjects;

    	}

    	remove() {

    		const objects = this._objects,
    			indicesByUUID = this._indicesByUUID,
    			bindings = this._bindings,
    			nBindings = bindings.length;

    		let nCachedObjects = this.nCachedObjects_;

    		for ( let i = 0, n = arguments.length; i !== n; ++ i ) {

    			const object = arguments[ i ],
    				uuid = object.uuid,
    				index = indicesByUUID[ uuid ];

    			if ( index !== undefined && index >= nCachedObjects ) {

    				// move existing object into the CACHED region

    				const lastCachedIndex = nCachedObjects ++,
    					firstActiveObject = objects[ lastCachedIndex ];

    				indicesByUUID[ firstActiveObject.uuid ] = index;
    				objects[ index ] = firstActiveObject;

    				indicesByUUID[ uuid ] = lastCachedIndex;
    				objects[ lastCachedIndex ] = object;

    				// accounting is done, now do the same for all bindings

    				for ( let j = 0, m = nBindings; j !== m; ++ j ) {

    					const bindingsForPath = bindings[ j ],
    						firstActive = bindingsForPath[ lastCachedIndex ],
    						binding = bindingsForPath[ index ];

    					bindingsForPath[ index ] = firstActive;
    					bindingsForPath[ lastCachedIndex ] = binding;

    				}

    			}

    		} // for arguments

    		this.nCachedObjects_ = nCachedObjects;

    	}

    	// remove & forget
    	uncache() {

    		const objects = this._objects,
    			indicesByUUID = this._indicesByUUID,
    			bindings = this._bindings,
    			nBindings = bindings.length;

    		let nCachedObjects = this.nCachedObjects_,
    			nObjects = objects.length;

    		for ( let i = 0, n = arguments.length; i !== n; ++ i ) {

    			const object = arguments[ i ],
    				uuid = object.uuid,
    				index = indicesByUUID[ uuid ];

    			if ( index !== undefined ) {

    				delete indicesByUUID[ uuid ];

    				if ( index < nCachedObjects ) {

    					// object is cached, shrink the CACHED region

    					const firstActiveIndex = -- nCachedObjects,
    						lastCachedObject = objects[ firstActiveIndex ],
    						lastIndex = -- nObjects,
    						lastObject = objects[ lastIndex ];

    					// last cached object takes this object's place
    					indicesByUUID[ lastCachedObject.uuid ] = index;
    					objects[ index ] = lastCachedObject;

    					// last object goes to the activated slot and pop
    					indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
    					objects[ firstActiveIndex ] = lastObject;
    					objects.pop();

    					// accounting is done, now do the same for all bindings

    					for ( let j = 0, m = nBindings; j !== m; ++ j ) {

    						const bindingsForPath = bindings[ j ],
    							lastCached = bindingsForPath[ firstActiveIndex ],
    							last = bindingsForPath[ lastIndex ];

    						bindingsForPath[ index ] = lastCached;
    						bindingsForPath[ firstActiveIndex ] = last;
    						bindingsForPath.pop();

    					}

    				} else {

    					// object is active, just swap with the last and pop

    					const lastIndex = -- nObjects,
    						lastObject = objects[ lastIndex ];

    					if ( lastIndex > 0 ) {

    						indicesByUUID[ lastObject.uuid ] = index;

    					}

    					objects[ index ] = lastObject;
    					objects.pop();

    					// accounting is done, now do the same for all bindings

    					for ( let j = 0, m = nBindings; j !== m; ++ j ) {

    						const bindingsForPath = bindings[ j ];

    						bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
    						bindingsForPath.pop();

    					}

    				} // cached or active

    			} // if object is known

    		} // for arguments

    		this.nCachedObjects_ = nCachedObjects;

    	}

    	// Internal interface used by befriended PropertyBinding.Composite:

    	subscribe_( path, parsedPath ) {

    		// returns an array of bindings for the given path that is changed
    		// according to the contained objects in the group

    		const indicesByPath = this._bindingsIndicesByPath;
    		let index = indicesByPath[ path ];
    		const bindings = this._bindings;

    		if ( index !== undefined ) return bindings[ index ];

    		const paths = this._paths,
    			parsedPaths = this._parsedPaths,
    			objects = this._objects,
    			nObjects = objects.length,
    			nCachedObjects = this.nCachedObjects_,
    			bindingsForPath = new Array( nObjects );

    		index = bindings.length;

    		indicesByPath[ path ] = index;

    		paths.push( path );
    		parsedPaths.push( parsedPath );
    		bindings.push( bindingsForPath );

    		for ( let i = nCachedObjects, n = objects.length; i !== n; ++ i ) {

    			const object = objects[ i ];
    			bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );

    		}

    		return bindingsForPath;

    	}

    	unsubscribe_( path ) {

    		// tells the group to forget about a property path and no longer
    		// update the array previously obtained with 'subscribe_'

    		const indicesByPath = this._bindingsIndicesByPath,
    			index = indicesByPath[ path ];

    		if ( index !== undefined ) {

    			const paths = this._paths,
    				parsedPaths = this._parsedPaths,
    				bindings = this._bindings,
    				lastBindingsIndex = bindings.length - 1,
    				lastBindings = bindings[ lastBindingsIndex ],
    				lastBindingsPath = path[ lastBindingsIndex ];

    			indicesByPath[ lastBindingsPath ] = index;

    			bindings[ index ] = lastBindings;
    			bindings.pop();

    			parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
    			parsedPaths.pop();

    			paths[ index ] = paths[ lastBindingsIndex ];
    			paths.pop();

    		}

    	}

    }

    class AnimationAction {

    	constructor( mixer, clip, localRoot = null, blendMode = clip.blendMode ) {

    		this._mixer = mixer;
    		this._clip = clip;
    		this._localRoot = localRoot;
    		this.blendMode = blendMode;

    		const tracks = clip.tracks,
    			nTracks = tracks.length,
    			interpolants = new Array( nTracks );

    		const interpolantSettings = {
    			endingStart: ZeroCurvatureEnding,
    			endingEnd: ZeroCurvatureEnding
    		};

    		for ( let i = 0; i !== nTracks; ++ i ) {

    			const interpolant = tracks[ i ].createInterpolant( null );
    			interpolants[ i ] = interpolant;
    			interpolant.settings = interpolantSettings;

    		}

    		this._interpolantSettings = interpolantSettings;

    		this._interpolants = interpolants; // bound by the mixer

    		// inside: PropertyMixer (managed by the mixer)
    		this._propertyBindings = new Array( nTracks );

    		this._cacheIndex = null; // for the memory manager
    		this._byClipCacheIndex = null; // for the memory manager

    		this._timeScaleInterpolant = null;
    		this._weightInterpolant = null;

    		this.loop = LoopRepeat;
    		this._loopCount = - 1;

    		// global mixer time when the action is to be started
    		// it's set back to 'null' upon start of the action
    		this._startTime = null;

    		// scaled local time of the action
    		// gets clamped or wrapped to 0..clip.duration according to loop
    		this.time = 0;

    		this.timeScale = 1;
    		this._effectiveTimeScale = 1;

    		this.weight = 1;
    		this._effectiveWeight = 1;

    		this.repetitions = Infinity; // no. of repetitions when looping

    		this.paused = false; // true -> zero effective time scale
    		this.enabled = true; // false -> zero effective weight

    		this.clampWhenFinished = false;// keep feeding the last frame?

    		this.zeroSlopeAtStart = true;// for smooth interpolation w/o separate
    		this.zeroSlopeAtEnd = true;// clips for start, loop and end

    	}

    	// State & Scheduling

    	play() {

    		this._mixer._activateAction( this );

    		return this;

    	}

    	stop() {

    		this._mixer._deactivateAction( this );

    		return this.reset();

    	}

    	reset() {

    		this.paused = false;
    		this.enabled = true;

    		this.time = 0; // restart clip
    		this._loopCount = - 1;// forget previous loops
    		this._startTime = null;// forget scheduling

    		return this.stopFading().stopWarping();

    	}

    	isRunning() {

    		return this.enabled && ! this.paused && this.timeScale !== 0 &&
    			this._startTime === null && this._mixer._isActiveAction( this );

    	}

    	// return true when play has been called
    	isScheduled() {

    		return this._mixer._isActiveAction( this );

    	}

    	startAt( time ) {

    		this._startTime = time;

    		return this;

    	}

    	setLoop( mode, repetitions ) {

    		this.loop = mode;
    		this.repetitions = repetitions;

    		return this;

    	}

    	// Weight

    	// set the weight stopping any scheduled fading
    	// although .enabled = false yields an effective weight of zero, this
    	// method does *not* change .enabled, because it would be confusing
    	setEffectiveWeight( weight ) {

    		this.weight = weight;

    		// note: same logic as when updated at runtime
    		this._effectiveWeight = this.enabled ? weight : 0;

    		return this.stopFading();

    	}

    	// return the weight considering fading and .enabled
    	getEffectiveWeight() {

    		return this._effectiveWeight;

    	}

    	fadeIn( duration ) {

    		return this._scheduleFading( duration, 0, 1 );

    	}

    	fadeOut( duration ) {

    		return this._scheduleFading( duration, 1, 0 );

    	}

    	crossFadeFrom( fadeOutAction, duration, warp ) {

    		fadeOutAction.fadeOut( duration );
    		this.fadeIn( duration );

    		if ( warp ) {

    			const fadeInDuration = this._clip.duration,
    				fadeOutDuration = fadeOutAction._clip.duration,

    				startEndRatio = fadeOutDuration / fadeInDuration,
    				endStartRatio = fadeInDuration / fadeOutDuration;

    			fadeOutAction.warp( 1.0, startEndRatio, duration );
    			this.warp( endStartRatio, 1.0, duration );

    		}

    		return this;

    	}

    	crossFadeTo( fadeInAction, duration, warp ) {

    		return fadeInAction.crossFadeFrom( this, duration, warp );

    	}

    	stopFading() {

    		const weightInterpolant = this._weightInterpolant;

    		if ( weightInterpolant !== null ) {

    			this._weightInterpolant = null;
    			this._mixer._takeBackControlInterpolant( weightInterpolant );

    		}

    		return this;

    	}

    	// Time Scale Control

    	// set the time scale stopping any scheduled warping
    	// although .paused = true yields an effective time scale of zero, this
    	// method does *not* change .paused, because it would be confusing
    	setEffectiveTimeScale( timeScale ) {

    		this.timeScale = timeScale;
    		this._effectiveTimeScale = this.paused ? 0 : timeScale;

    		return this.stopWarping();

    	}

    	// return the time scale considering warping and .paused
    	getEffectiveTimeScale() {

    		return this._effectiveTimeScale;

    	}

    	setDuration( duration ) {

    		this.timeScale = this._clip.duration / duration;

    		return this.stopWarping();

    	}

    	syncWith( action ) {

    		this.time = action.time;
    		this.timeScale = action.timeScale;

    		return this.stopWarping();

    	}

    	halt( duration ) {

    		return this.warp( this._effectiveTimeScale, 0, duration );

    	}

    	warp( startTimeScale, endTimeScale, duration ) {

    		const mixer = this._mixer,
    			now = mixer.time,
    			timeScale = this.timeScale;

    		let interpolant = this._timeScaleInterpolant;

    		if ( interpolant === null ) {

    			interpolant = mixer._lendControlInterpolant();
    			this._timeScaleInterpolant = interpolant;

    		}

    		const times = interpolant.parameterPositions,
    			values = interpolant.sampleValues;

    		times[ 0 ] = now;
    		times[ 1 ] = now + duration;

    		values[ 0 ] = startTimeScale / timeScale;
    		values[ 1 ] = endTimeScale / timeScale;

    		return this;

    	}

    	stopWarping() {

    		const timeScaleInterpolant = this._timeScaleInterpolant;

    		if ( timeScaleInterpolant !== null ) {

    			this._timeScaleInterpolant = null;
    			this._mixer._takeBackControlInterpolant( timeScaleInterpolant );

    		}

    		return this;

    	}

    	// Object Accessors

    	getMixer() {

    		return this._mixer;

    	}

    	getClip() {

    		return this._clip;

    	}

    	getRoot() {

    		return this._localRoot || this._mixer._root;

    	}

    	// Interna

    	_update( time, deltaTime, timeDirection, accuIndex ) {

    		// called by the mixer

    		if ( ! this.enabled ) {

    			// call ._updateWeight() to update ._effectiveWeight

    			this._updateWeight( time );
    			return;

    		}

    		const startTime = this._startTime;

    		if ( startTime !== null ) {

    			// check for scheduled start of action

    			const timeRunning = ( time - startTime ) * timeDirection;
    			if ( timeRunning < 0 || timeDirection === 0 ) {

    				deltaTime = 0;

    			} else {


    				this._startTime = null; // unschedule
    				deltaTime = timeDirection * timeRunning;

    			}

    		}

    		// apply time scale and advance time

    		deltaTime *= this._updateTimeScale( time );
    		const clipTime = this._updateTime( deltaTime );

    		// note: _updateTime may disable the action resulting in
    		// an effective weight of 0

    		const weight = this._updateWeight( time );

    		if ( weight > 0 ) {

    			const interpolants = this._interpolants;
    			const propertyMixers = this._propertyBindings;

    			switch ( this.blendMode ) {

    				case AdditiveAnimationBlendMode:

    					for ( let j = 0, m = interpolants.length; j !== m; ++ j ) {

    						interpolants[ j ].evaluate( clipTime );
    						propertyMixers[ j ].accumulateAdditive( weight );

    					}

    					break;

    				case NormalAnimationBlendMode:
    				default:

    					for ( let j = 0, m = interpolants.length; j !== m; ++ j ) {

    						interpolants[ j ].evaluate( clipTime );
    						propertyMixers[ j ].accumulate( accuIndex, weight );

    					}

    			}

    		}

    	}

    	_updateWeight( time ) {

    		let weight = 0;

    		if ( this.enabled ) {

    			weight = this.weight;
    			const interpolant = this._weightInterpolant;

    			if ( interpolant !== null ) {

    				const interpolantValue = interpolant.evaluate( time )[ 0 ];

    				weight *= interpolantValue;

    				if ( time > interpolant.parameterPositions[ 1 ] ) {

    					this.stopFading();

    					if ( interpolantValue === 0 ) {

    						// faded out, disable
    						this.enabled = false;

    					}

    				}

    			}

    		}

    		this._effectiveWeight = weight;
    		return weight;

    	}

    	_updateTimeScale( time ) {

    		let timeScale = 0;

    		if ( ! this.paused ) {

    			timeScale = this.timeScale;

    			const interpolant = this._timeScaleInterpolant;

    			if ( interpolant !== null ) {

    				const interpolantValue = interpolant.evaluate( time )[ 0 ];

    				timeScale *= interpolantValue;

    				if ( time > interpolant.parameterPositions[ 1 ] ) {

    					this.stopWarping();

    					if ( timeScale === 0 ) {

    						// motion has halted, pause
    						this.paused = true;

    					} else {

    						// warp done - apply final time scale
    						this.timeScale = timeScale;

    					}

    				}

    			}

    		}

    		this._effectiveTimeScale = timeScale;
    		return timeScale;

    	}

    	_updateTime( deltaTime ) {

    		const duration = this._clip.duration;
    		const loop = this.loop;

    		let time = this.time + deltaTime;
    		let loopCount = this._loopCount;

    		const pingPong = ( loop === LoopPingPong );

    		if ( deltaTime === 0 ) {

    			if ( loopCount === - 1 ) return time;

    			return ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time;

    		}

    		if ( loop === LoopOnce ) {

    			if ( loopCount === - 1 ) {

    				// just started

    				this._loopCount = 0;
    				this._setEndings( true, true, false );

    			}

    			handle_stop: {

    				if ( time >= duration ) {

    					time = duration;

    				} else if ( time < 0 ) {

    					time = 0;

    				} else {

    					this.time = time;

    					break handle_stop;

    				}

    				if ( this.clampWhenFinished ) this.paused = true;
    				else this.enabled = false;

    				this.time = time;

    				this._mixer.dispatchEvent( {
    					type: 'finished', action: this,
    					direction: deltaTime < 0 ? - 1 : 1
    				} );

    			}

    		} else { // repetitive Repeat or PingPong

    			if ( loopCount === - 1 ) {

    				// just started

    				if ( deltaTime >= 0 ) {

    					loopCount = 0;

    					this._setEndings( true, this.repetitions === 0, pingPong );

    				} else {

    					// when looping in reverse direction, the initial
    					// transition through zero counts as a repetition,
    					// so leave loopCount at -1

    					this._setEndings( this.repetitions === 0, true, pingPong );

    				}

    			}

    			if ( time >= duration || time < 0 ) {

    				// wrap around

    				const loopDelta = Math.floor( time / duration ); // signed
    				time -= duration * loopDelta;

    				loopCount += Math.abs( loopDelta );

    				const pending = this.repetitions - loopCount;

    				if ( pending <= 0 ) {

    					// have to stop (switch state, clamp time, fire event)

    					if ( this.clampWhenFinished ) this.paused = true;
    					else this.enabled = false;

    					time = deltaTime > 0 ? duration : 0;

    					this.time = time;

    					this._mixer.dispatchEvent( {
    						type: 'finished', action: this,
    						direction: deltaTime > 0 ? 1 : - 1
    					} );

    				} else {

    					// keep running

    					if ( pending === 1 ) {

    						// entering the last round

    						const atStart = deltaTime < 0;
    						this._setEndings( atStart, ! atStart, pingPong );

    					} else {

    						this._setEndings( false, false, pingPong );

    					}

    					this._loopCount = loopCount;

    					this.time = time;

    					this._mixer.dispatchEvent( {
    						type: 'loop', action: this, loopDelta: loopDelta
    					} );

    				}

    			} else {

    				this.time = time;

    			}

    			if ( pingPong && ( loopCount & 1 ) === 1 ) {

    				// invert time for the "pong round"

    				return duration - time;

    			}

    		}

    		return time;

    	}

    	_setEndings( atStart, atEnd, pingPong ) {

    		const settings = this._interpolantSettings;

    		if ( pingPong ) {

    			settings.endingStart = ZeroSlopeEnding;
    			settings.endingEnd = ZeroSlopeEnding;

    		} else {

    			// assuming for LoopOnce atStart == atEnd == true

    			if ( atStart ) {

    				settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;

    			} else {

    				settings.endingStart = WrapAroundEnding;

    			}

    			if ( atEnd ) {

    				settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;

    			} else {

    				settings.endingEnd 	 = WrapAroundEnding;

    			}

    		}

    	}

    	_scheduleFading( duration, weightNow, weightThen ) {

    		const mixer = this._mixer, now = mixer.time;
    		let interpolant = this._weightInterpolant;

    		if ( interpolant === null ) {

    			interpolant = mixer._lendControlInterpolant();
    			this._weightInterpolant = interpolant;

    		}

    		const times = interpolant.parameterPositions,
    			values = interpolant.sampleValues;

    		times[ 0 ] = now;
    		values[ 0 ] = weightNow;
    		times[ 1 ] = now + duration;
    		values[ 1 ] = weightThen;

    		return this;

    	}

    }

    const _controlInterpolantsResultBuffer = new Float32Array( 1 );


    class AnimationMixer extends EventDispatcher {

    	constructor( root ) {

    		super();

    		this._root = root;
    		this._initMemoryManager();
    		this._accuIndex = 0;
    		this.time = 0;
    		this.timeScale = 1.0;

    	}

    	_bindAction( action, prototypeAction ) {

    		const root = action._localRoot || this._root,
    			tracks = action._clip.tracks,
    			nTracks = tracks.length,
    			bindings = action._propertyBindings,
    			interpolants = action._interpolants,
    			rootUuid = root.uuid,
    			bindingsByRoot = this._bindingsByRootAndName;

    		let bindingsByName = bindingsByRoot[ rootUuid ];

    		if ( bindingsByName === undefined ) {

    			bindingsByName = {};
    			bindingsByRoot[ rootUuid ] = bindingsByName;

    		}

    		for ( let i = 0; i !== nTracks; ++ i ) {

    			const track = tracks[ i ],
    				trackName = track.name;

    			let binding = bindingsByName[ trackName ];

    			if ( binding !== undefined ) {

    				++ binding.referenceCount;
    				bindings[ i ] = binding;

    			} else {

    				binding = bindings[ i ];

    				if ( binding !== undefined ) {

    					// existing binding, make sure the cache knows

    					if ( binding._cacheIndex === null ) {

    						++ binding.referenceCount;
    						this._addInactiveBinding( binding, rootUuid, trackName );

    					}

    					continue;

    				}

    				const path = prototypeAction && prototypeAction.
    					_propertyBindings[ i ].binding.parsedPath;

    				binding = new PropertyMixer(
    					PropertyBinding.create( root, trackName, path ),
    					track.ValueTypeName, track.getValueSize() );

    				++ binding.referenceCount;
    				this._addInactiveBinding( binding, rootUuid, trackName );

    				bindings[ i ] = binding;

    			}

    			interpolants[ i ].resultBuffer = binding.buffer;

    		}

    	}

    	_activateAction( action ) {

    		if ( ! this._isActiveAction( action ) ) {

    			if ( action._cacheIndex === null ) {

    				// this action has been forgotten by the cache, but the user
    				// appears to be still using it -> rebind

    				const rootUuid = ( action._localRoot || this._root ).uuid,
    					clipUuid = action._clip.uuid,
    					actionsForClip = this._actionsByClip[ clipUuid ];

    				this._bindAction( action,
    					actionsForClip && actionsForClip.knownActions[ 0 ] );

    				this._addInactiveAction( action, clipUuid, rootUuid );

    			}

    			const bindings = action._propertyBindings;

    			// increment reference counts / sort out state
    			for ( let i = 0, n = bindings.length; i !== n; ++ i ) {

    				const binding = bindings[ i ];

    				if ( binding.useCount ++ === 0 ) {

    					this._lendBinding( binding );
    					binding.saveOriginalState();

    				}

    			}

    			this._lendAction( action );

    		}

    	}

    	_deactivateAction( action ) {

    		if ( this._isActiveAction( action ) ) {

    			const bindings = action._propertyBindings;

    			// decrement reference counts / sort out state
    			for ( let i = 0, n = bindings.length; i !== n; ++ i ) {

    				const binding = bindings[ i ];

    				if ( -- binding.useCount === 0 ) {

    					binding.restoreOriginalState();
    					this._takeBackBinding( binding );

    				}

    			}

    			this._takeBackAction( action );

    		}

    	}

    	// Memory manager

    	_initMemoryManager() {

    		this._actions = []; // 'nActiveActions' followed by inactive ones
    		this._nActiveActions = 0;

    		this._actionsByClip = {};
    		// inside:
    		// {
    		// 	knownActions: Array< AnimationAction > - used as prototypes
    		// 	actionByRoot: AnimationAction - lookup
    		// }


    		this._bindings = []; // 'nActiveBindings' followed by inactive ones
    		this._nActiveBindings = 0;

    		this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >


    		this._controlInterpolants = []; // same game as above
    		this._nActiveControlInterpolants = 0;

    		const scope = this;

    		this.stats = {

    			actions: {
    				get total() {

    					return scope._actions.length;

    				},
    				get inUse() {

    					return scope._nActiveActions;

    				}
    			},
    			bindings: {
    				get total() {

    					return scope._bindings.length;

    				},
    				get inUse() {

    					return scope._nActiveBindings;

    				}
    			},
    			controlInterpolants: {
    				get total() {

    					return scope._controlInterpolants.length;

    				},
    				get inUse() {

    					return scope._nActiveControlInterpolants;

    				}
    			}

    		};

    	}

    	// Memory management for AnimationAction objects

    	_isActiveAction( action ) {

    		const index = action._cacheIndex;
    		return index !== null && index < this._nActiveActions;

    	}

    	_addInactiveAction( action, clipUuid, rootUuid ) {

    		const actions = this._actions,
    			actionsByClip = this._actionsByClip;

    		let actionsForClip = actionsByClip[ clipUuid ];

    		if ( actionsForClip === undefined ) {

    			actionsForClip = {

    				knownActions: [ action ],
    				actionByRoot: {}

    			};

    			action._byClipCacheIndex = 0;

    			actionsByClip[ clipUuid ] = actionsForClip;

    		} else {

    			const knownActions = actionsForClip.knownActions;

    			action._byClipCacheIndex = knownActions.length;
    			knownActions.push( action );

    		}

    		action._cacheIndex = actions.length;
    		actions.push( action );

    		actionsForClip.actionByRoot[ rootUuid ] = action;

    	}

    	_removeInactiveAction( action ) {

    		const actions = this._actions,
    			lastInactiveAction = actions[ actions.length - 1 ],
    			cacheIndex = action._cacheIndex;

    		lastInactiveAction._cacheIndex = cacheIndex;
    		actions[ cacheIndex ] = lastInactiveAction;
    		actions.pop();

    		action._cacheIndex = null;


    		const clipUuid = action._clip.uuid,
    			actionsByClip = this._actionsByClip,
    			actionsForClip = actionsByClip[ clipUuid ],
    			knownActionsForClip = actionsForClip.knownActions,

    			lastKnownAction =
    				knownActionsForClip[ knownActionsForClip.length - 1 ],

    			byClipCacheIndex = action._byClipCacheIndex;

    		lastKnownAction._byClipCacheIndex = byClipCacheIndex;
    		knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
    		knownActionsForClip.pop();

    		action._byClipCacheIndex = null;


    		const actionByRoot = actionsForClip.actionByRoot,
    			rootUuid = ( action._localRoot || this._root ).uuid;

    		delete actionByRoot[ rootUuid ];

    		if ( knownActionsForClip.length === 0 ) {

    			delete actionsByClip[ clipUuid ];

    		}

    		this._removeInactiveBindingsForAction( action );

    	}

    	_removeInactiveBindingsForAction( action ) {

    		const bindings = action._propertyBindings;

    		for ( let i = 0, n = bindings.length; i !== n; ++ i ) {

    			const binding = bindings[ i ];

    			if ( -- binding.referenceCount === 0 ) {

    				this._removeInactiveBinding( binding );

    			}

    		}

    	}

    	_lendAction( action ) {

    		// [ active actions |  inactive actions  ]
    		// [  active actions >| inactive actions ]
    		//                 s        a
    		//                  <-swap->
    		//                 a        s

    		const actions = this._actions,
    			prevIndex = action._cacheIndex,

    			lastActiveIndex = this._nActiveActions ++,

    			firstInactiveAction = actions[ lastActiveIndex ];

    		action._cacheIndex = lastActiveIndex;
    		actions[ lastActiveIndex ] = action;

    		firstInactiveAction._cacheIndex = prevIndex;
    		actions[ prevIndex ] = firstInactiveAction;

    	}

    	_takeBackAction( action ) {

    		// [  active actions  | inactive actions ]
    		// [ active actions |< inactive actions  ]
    		//        a        s
    		//         <-swap->
    		//        s        a

    		const actions = this._actions,
    			prevIndex = action._cacheIndex,

    			firstInactiveIndex = -- this._nActiveActions,

    			lastActiveAction = actions[ firstInactiveIndex ];

    		action._cacheIndex = firstInactiveIndex;
    		actions[ firstInactiveIndex ] = action;

    		lastActiveAction._cacheIndex = prevIndex;
    		actions[ prevIndex ] = lastActiveAction;

    	}

    	// Memory management for PropertyMixer objects

    	_addInactiveBinding( binding, rootUuid, trackName ) {

    		const bindingsByRoot = this._bindingsByRootAndName,
    			bindings = this._bindings;

    		let bindingByName = bindingsByRoot[ rootUuid ];

    		if ( bindingByName === undefined ) {

    			bindingByName = {};
    			bindingsByRoot[ rootUuid ] = bindingByName;

    		}

    		bindingByName[ trackName ] = binding;

    		binding._cacheIndex = bindings.length;
    		bindings.push( binding );

    	}

    	_removeInactiveBinding( binding ) {

    		const bindings = this._bindings,
    			propBinding = binding.binding,
    			rootUuid = propBinding.rootNode.uuid,
    			trackName = propBinding.path,
    			bindingsByRoot = this._bindingsByRootAndName,
    			bindingByName = bindingsByRoot[ rootUuid ],

    			lastInactiveBinding = bindings[ bindings.length - 1 ],
    			cacheIndex = binding._cacheIndex;

    		lastInactiveBinding._cacheIndex = cacheIndex;
    		bindings[ cacheIndex ] = lastInactiveBinding;
    		bindings.pop();

    		delete bindingByName[ trackName ];

    		if ( Object.keys( bindingByName ).length === 0 ) {

    			delete bindingsByRoot[ rootUuid ];

    		}

    	}

    	_lendBinding( binding ) {

    		const bindings = this._bindings,
    			prevIndex = binding._cacheIndex,

    			lastActiveIndex = this._nActiveBindings ++,

    			firstInactiveBinding = bindings[ lastActiveIndex ];

    		binding._cacheIndex = lastActiveIndex;
    		bindings[ lastActiveIndex ] = binding;

    		firstInactiveBinding._cacheIndex = prevIndex;
    		bindings[ prevIndex ] = firstInactiveBinding;

    	}

    	_takeBackBinding( binding ) {

    		const bindings = this._bindings,
    			prevIndex = binding._cacheIndex,

    			firstInactiveIndex = -- this._nActiveBindings,

    			lastActiveBinding = bindings[ firstInactiveIndex ];

    		binding._cacheIndex = firstInactiveIndex;
    		bindings[ firstInactiveIndex ] = binding;

    		lastActiveBinding._cacheIndex = prevIndex;
    		bindings[ prevIndex ] = lastActiveBinding;

    	}


    	// Memory management of Interpolants for weight and time scale

    	_lendControlInterpolant() {

    		const interpolants = this._controlInterpolants,
    			lastActiveIndex = this._nActiveControlInterpolants ++;

    		let interpolant = interpolants[ lastActiveIndex ];

    		if ( interpolant === undefined ) {

    			interpolant = new LinearInterpolant(
    				new Float32Array( 2 ), new Float32Array( 2 ),
    				1, _controlInterpolantsResultBuffer );

    			interpolant.__cacheIndex = lastActiveIndex;
    			interpolants[ lastActiveIndex ] = interpolant;

    		}

    		return interpolant;

    	}

    	_takeBackControlInterpolant( interpolant ) {

    		const interpolants = this._controlInterpolants,
    			prevIndex = interpolant.__cacheIndex,

    			firstInactiveIndex = -- this._nActiveControlInterpolants,

    			lastActiveInterpolant = interpolants[ firstInactiveIndex ];

    		interpolant.__cacheIndex = firstInactiveIndex;
    		interpolants[ firstInactiveIndex ] = interpolant;

    		lastActiveInterpolant.__cacheIndex = prevIndex;
    		interpolants[ prevIndex ] = lastActiveInterpolant;

    	}

    	// return an action for a clip optionally using a custom root target
    	// object (this method allocates a lot of dynamic memory in case a
    	// previously unknown clip/root combination is specified)
    	clipAction( clip, optionalRoot, blendMode ) {

    		const root = optionalRoot || this._root,
    			rootUuid = root.uuid;

    		let clipObject = typeof clip === 'string' ? AnimationClip.findByName( root, clip ) : clip;

    		const clipUuid = clipObject !== null ? clipObject.uuid : clip;

    		const actionsForClip = this._actionsByClip[ clipUuid ];
    		let prototypeAction = null;

    		if ( blendMode === undefined ) {

    			if ( clipObject !== null ) {

    				blendMode = clipObject.blendMode;

    			} else {

    				blendMode = NormalAnimationBlendMode;

    			}

    		}

    		if ( actionsForClip !== undefined ) {

    			const existingAction = actionsForClip.actionByRoot[ rootUuid ];

    			if ( existingAction !== undefined && existingAction.blendMode === blendMode ) {

    				return existingAction;

    			}

    			// we know the clip, so we don't have to parse all
    			// the bindings again but can just copy
    			prototypeAction = actionsForClip.knownActions[ 0 ];

    			// also, take the clip from the prototype action
    			if ( clipObject === null )
    				clipObject = prototypeAction._clip;

    		}

    		// clip must be known when specified via string
    		if ( clipObject === null ) return null;

    		// allocate all resources required to run it
    		const newAction = new AnimationAction( this, clipObject, optionalRoot, blendMode );

    		this._bindAction( newAction, prototypeAction );

    		// and make the action known to the memory manager
    		this._addInactiveAction( newAction, clipUuid, rootUuid );

    		return newAction;

    	}

    	// get an existing action
    	existingAction( clip, optionalRoot ) {

    		const root = optionalRoot || this._root,
    			rootUuid = root.uuid,

    			clipObject = typeof clip === 'string' ?
    				AnimationClip.findByName( root, clip ) : clip,

    			clipUuid = clipObject ? clipObject.uuid : clip,

    			actionsForClip = this._actionsByClip[ clipUuid ];

    		if ( actionsForClip !== undefined ) {

    			return actionsForClip.actionByRoot[ rootUuid ] || null;

    		}

    		return null;

    	}

    	// deactivates all previously scheduled actions
    	stopAllAction() {

    		const actions = this._actions,
    			nActions = this._nActiveActions;

    		for ( let i = nActions - 1; i >= 0; -- i ) {

    			actions[ i ].stop();

    		}

    		return this;

    	}

    	// advance the time and update apply the animation
    	update( deltaTime ) {

    		deltaTime *= this.timeScale;

    		const actions = this._actions,
    			nActions = this._nActiveActions,

    			time = this.time += deltaTime,
    			timeDirection = Math.sign( deltaTime ),

    			accuIndex = this._accuIndex ^= 1;

    		// run active actions

    		for ( let i = 0; i !== nActions; ++ i ) {

    			const action = actions[ i ];

    			action._update( time, deltaTime, timeDirection, accuIndex );

    		}

    		// update scene graph

    		const bindings = this._bindings,
    			nBindings = this._nActiveBindings;

    		for ( let i = 0; i !== nBindings; ++ i ) {

    			bindings[ i ].apply( accuIndex );

    		}

    		return this;

    	}

    	// Allows you to seek to a specific time in an animation.
    	setTime( timeInSeconds ) {

    		this.time = 0; // Zero out time attribute for AnimationMixer object;
    		for ( let i = 0; i < this._actions.length; i ++ ) {

    			this._actions[ i ].time = 0; // Zero out time attribute for all associated AnimationAction objects.

    		}

    		return this.update( timeInSeconds ); // Update used to set exact time. Returns "this" AnimationMixer object.

    	}

    	// return this mixer's root target object
    	getRoot() {

    		return this._root;

    	}

    	// free all resources specific to a particular clip
    	uncacheClip( clip ) {

    		const actions = this._actions,
    			clipUuid = clip.uuid,
    			actionsByClip = this._actionsByClip,
    			actionsForClip = actionsByClip[ clipUuid ];

    		if ( actionsForClip !== undefined ) {

    			// note: just calling _removeInactiveAction would mess up the
    			// iteration state and also require updating the state we can
    			// just throw away

    			const actionsToRemove = actionsForClip.knownActions;

    			for ( let i = 0, n = actionsToRemove.length; i !== n; ++ i ) {

    				const action = actionsToRemove[ i ];

    				this._deactivateAction( action );

    				const cacheIndex = action._cacheIndex,
    					lastInactiveAction = actions[ actions.length - 1 ];

    				action._cacheIndex = null;
    				action._byClipCacheIndex = null;

    				lastInactiveAction._cacheIndex = cacheIndex;
    				actions[ cacheIndex ] = lastInactiveAction;
    				actions.pop();

    				this._removeInactiveBindingsForAction( action );

    			}

    			delete actionsByClip[ clipUuid ];

    		}

    	}

    	// free all resources specific to a particular root target object
    	uncacheRoot( root ) {

    		const rootUuid = root.uuid,
    			actionsByClip = this._actionsByClip;

    		for ( const clipUuid in actionsByClip ) {

    			const actionByRoot = actionsByClip[ clipUuid ].actionByRoot,
    				action = actionByRoot[ rootUuid ];

    			if ( action !== undefined ) {

    				this._deactivateAction( action );
    				this._removeInactiveAction( action );

    			}

    		}

    		const bindingsByRoot = this._bindingsByRootAndName,
    			bindingByName = bindingsByRoot[ rootUuid ];

    		if ( bindingByName !== undefined ) {

    			for ( const trackName in bindingByName ) {

    				const binding = bindingByName[ trackName ];
    				binding.restoreOriginalState();
    				this._removeInactiveBinding( binding );

    			}

    		}

    	}

    	// remove a targeted clip from the cache
    	uncacheAction( clip, optionalRoot ) {

    		const action = this.existingAction( clip, optionalRoot );

    		if ( action !== null ) {

    			this._deactivateAction( action );
    			this._removeInactiveAction( action );

    		}

    	}

    }

    class Uniform {

    	constructor( value ) {

    		this.value = value;

    	}

    	clone() {

    		return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );

    	}

    }

    let id = 0;

    class UniformsGroup extends EventDispatcher {

    	constructor() {

    		super();

    		this.isUniformsGroup = true;

    		Object.defineProperty( this, 'id', { value: id ++ } );

    		this.name = '';

    		this.usage = StaticDrawUsage;
    		this.uniforms = [];

    	}

    	add( uniform ) {

    		this.uniforms.push( uniform );

    		return this;

    	}

    	remove( uniform ) {

    		const index = this.uniforms.indexOf( uniform );

    		if ( index !== - 1 ) this.uniforms.splice( index, 1 );

    		return this;

    	}

    	setName( name ) {

    		this.name = name;

    		return this;

    	}

    	setUsage( value ) {

    		this.usage = value;

    		return this;

    	}

    	dispose() {

    		this.dispatchEvent( { type: 'dispose' } );

    		return this;

    	}

    	copy( source ) {

    		this.name = source.name;
    		this.usage = source.usage;

    		const uniformsSource = source.uniforms;

    		this.uniforms.length = 0;

    		for ( let i = 0, l = uniformsSource.length; i < l; i ++ ) {

    			this.uniforms.push( uniformsSource[ i ].clone() );

    		}

    		return this;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    class InstancedInterleavedBuffer extends InterleavedBuffer {

    	constructor( array, stride, meshPerAttribute = 1 ) {

    		super( array, stride );

    		this.isInstancedInterleavedBuffer = true;

    		this.meshPerAttribute = meshPerAttribute;

    	}

    	copy( source ) {

    		super.copy( source );

    		this.meshPerAttribute = source.meshPerAttribute;

    		return this;

    	}

    	clone( data ) {

    		const ib = super.clone( data );

    		ib.meshPerAttribute = this.meshPerAttribute;

    		return ib;

    	}

    	toJSON( data ) {

    		const json = super.toJSON( data );

    		json.isInstancedInterleavedBuffer = true;
    		json.meshPerAttribute = this.meshPerAttribute;

    		return json;

    	}

    }

    class GLBufferAttribute {

    	constructor( buffer, type, itemSize, elementSize, count ) {

    		this.isGLBufferAttribute = true;

    		this.buffer = buffer;
    		this.type = type;
    		this.itemSize = itemSize;
    		this.elementSize = elementSize;
    		this.count = count;

    		this.version = 0;

    	}

    	set needsUpdate( value ) {

    		if ( value === true ) this.version ++;

    	}

    	setBuffer( buffer ) {

    		this.buffer = buffer;

    		return this;

    	}

    	setType( type, elementSize ) {

    		this.type = type;
    		this.elementSize = elementSize;

    		return this;

    	}

    	setItemSize( itemSize ) {

    		this.itemSize = itemSize;

    		return this;

    	}

    	setCount( count ) {

    		this.count = count;

    		return this;

    	}

    }

    class Raycaster {

    	constructor( origin, direction, near = 0, far = Infinity ) {

    		this.ray = new Ray( origin, direction );
    		// direction is assumed to be normalized (for accurate distance calculations)

    		this.near = near;
    		this.far = far;
    		this.camera = null;
    		this.layers = new Layers();

    		this.params = {
    			Mesh: {},
    			Line: { threshold: 1 },
    			LOD: {},
    			Points: { threshold: 1 },
    			Sprite: {}
    		};

    	}

    	set( origin, direction ) {

    		// direction is assumed to be normalized (for accurate distance calculations)

    		this.ray.set( origin, direction );

    	}

    	setFromCamera( coords, camera ) {

    		if ( camera.isPerspectiveCamera ) {

    			this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
    			this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();
    			this.camera = camera;

    		} else if ( camera.isOrthographicCamera ) {

    			this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera
    			this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );
    			this.camera = camera;

    		} else {

    			console.error( 'THREE.Raycaster: Unsupported camera type: ' + camera.type );

    		}

    	}

    	intersectObject( object, recursive = true, intersects = [] ) {

    		intersectObject( object, this, intersects, recursive );

    		intersects.sort( ascSort );

    		return intersects;

    	}

    	intersectObjects( objects, recursive = true, intersects = [] ) {

    		for ( let i = 0, l = objects.length; i < l; i ++ ) {

    			intersectObject( objects[ i ], this, intersects, recursive );

    		}

    		intersects.sort( ascSort );

    		return intersects;

    	}

    }

    function ascSort( a, b ) {

    	return a.distance - b.distance;

    }

    function intersectObject( object, raycaster, intersects, recursive ) {

    	if ( object.layers.test( raycaster.layers ) ) {

    		object.raycast( raycaster, intersects );

    	}

    	if ( recursive === true ) {

    		const children = object.children;

    		for ( let i = 0, l = children.length; i < l; i ++ ) {

    			intersectObject( children[ i ], raycaster, intersects, true );

    		}

    	}

    }

    /**
     * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
     *
     * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up.
     * The azimuthal angle (theta) is measured from the positive z-axis.
     */

    class Spherical {

    	constructor( radius = 1, phi = 0, theta = 0 ) {

    		this.radius = radius;
    		this.phi = phi; // polar angle
    		this.theta = theta; // azimuthal angle

    		return this;

    	}

    	set( radius, phi, theta ) {

    		this.radius = radius;
    		this.phi = phi;
    		this.theta = theta;

    		return this;

    	}

    	copy( other ) {

    		this.radius = other.radius;
    		this.phi = other.phi;
    		this.theta = other.theta;

    		return this;

    	}

    	// restrict phi to be between EPS and PI-EPS
    	makeSafe() {

    		const EPS = 0.000001;
    		this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );

    		return this;

    	}

    	setFromVector3( v ) {

    		return this.setFromCartesianCoords( v.x, v.y, v.z );

    	}

    	setFromCartesianCoords( x, y, z ) {

    		this.radius = Math.sqrt( x * x + y * y + z * z );

    		if ( this.radius === 0 ) {

    			this.theta = 0;
    			this.phi = 0;

    		} else {

    			this.theta = Math.atan2( x, z );
    			this.phi = Math.acos( clamp( y / this.radius, - 1, 1 ) );

    		}

    		return this;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    /**
     * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
     */

    class Cylindrical {

    	constructor( radius = 1, theta = 0, y = 0 ) {

    		this.radius = radius; // distance from the origin to a point in the x-z plane
    		this.theta = theta; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
    		this.y = y; // height above the x-z plane

    		return this;

    	}

    	set( radius, theta, y ) {

    		this.radius = radius;
    		this.theta = theta;
    		this.y = y;

    		return this;

    	}

    	copy( other ) {

    		this.radius = other.radius;
    		this.theta = other.theta;
    		this.y = other.y;

    		return this;

    	}

    	setFromVector3( v ) {

    		return this.setFromCartesianCoords( v.x, v.y, v.z );

    	}

    	setFromCartesianCoords( x, y, z ) {

    		this.radius = Math.sqrt( x * x + z * z );
    		this.theta = Math.atan2( x, z );
    		this.y = y;

    		return this;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    const _vector$4 = /*@__PURE__*/ new Vector2();

    class Box2 {

    	constructor( min = new Vector2( + Infinity, + Infinity ), max = new Vector2( - Infinity, - Infinity ) ) {

    		this.isBox2 = true;

    		this.min = min;
    		this.max = max;

    	}

    	set( min, max ) {

    		this.min.copy( min );
    		this.max.copy( max );

    		return this;

    	}

    	setFromPoints( points ) {

    		this.makeEmpty();

    		for ( let i = 0, il = points.length; i < il; i ++ ) {

    			this.expandByPoint( points[ i ] );

    		}

    		return this;

    	}

    	setFromCenterAndSize( center, size ) {

    		const halfSize = _vector$4.copy( size ).multiplyScalar( 0.5 );
    		this.min.copy( center ).sub( halfSize );
    		this.max.copy( center ).add( halfSize );

    		return this;

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    	copy( box ) {

    		this.min.copy( box.min );
    		this.max.copy( box.max );

    		return this;

    	}

    	makeEmpty() {

    		this.min.x = this.min.y = + Infinity;
    		this.max.x = this.max.y = - Infinity;

    		return this;

    	}

    	isEmpty() {

    		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

    		return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );

    	}

    	getCenter( target ) {

    		return this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

    	}

    	getSize( target ) {

    		return this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min );

    	}

    	expandByPoint( point ) {

    		this.min.min( point );
    		this.max.max( point );

    		return this;

    	}

    	expandByVector( vector ) {

    		this.min.sub( vector );
    		this.max.add( vector );

    		return this;

    	}

    	expandByScalar( scalar ) {

    		this.min.addScalar( - scalar );
    		this.max.addScalar( scalar );

    		return this;

    	}

    	containsPoint( point ) {

    		return point.x < this.min.x || point.x > this.max.x ||
    			point.y < this.min.y || point.y > this.max.y ? false : true;

    	}

    	containsBox( box ) {

    		return this.min.x <= box.min.x && box.max.x <= this.max.x &&
    			this.min.y <= box.min.y && box.max.y <= this.max.y;

    	}

    	getParameter( point, target ) {

    		// This can potentially have a divide by zero if the box
    		// has a size dimension of 0.

    		return target.set(
    			( point.x - this.min.x ) / ( this.max.x - this.min.x ),
    			( point.y - this.min.y ) / ( this.max.y - this.min.y )
    		);

    	}

    	intersectsBox( box ) {

    		// using 4 splitting planes to rule out intersections

    		return box.max.x < this.min.x || box.min.x > this.max.x ||
    			box.max.y < this.min.y || box.min.y > this.max.y ? false : true;

    	}

    	clampPoint( point, target ) {

    		return target.copy( point ).clamp( this.min, this.max );

    	}

    	distanceToPoint( point ) {

    		const clampedPoint = _vector$4.copy( point ).clamp( this.min, this.max );
    		return clampedPoint.sub( point ).length();

    	}

    	intersect( box ) {

    		this.min.max( box.min );
    		this.max.min( box.max );

    		return this;

    	}

    	union( box ) {

    		this.min.min( box.min );
    		this.max.max( box.max );

    		return this;

    	}

    	translate( offset ) {

    		this.min.add( offset );
    		this.max.add( offset );

    		return this;

    	}

    	equals( box ) {

    		return box.min.equals( this.min ) && box.max.equals( this.max );

    	}

    }

    const _startP = /*@__PURE__*/ new Vector3();
    const _startEnd = /*@__PURE__*/ new Vector3();

    class Line3 {

    	constructor( start = new Vector3(), end = new Vector3() ) {

    		this.start = start;
    		this.end = end;

    	}

    	set( start, end ) {

    		this.start.copy( start );
    		this.end.copy( end );

    		return this;

    	}

    	copy( line ) {

    		this.start.copy( line.start );
    		this.end.copy( line.end );

    		return this;

    	}

    	getCenter( target ) {

    		return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );

    	}

    	delta( target ) {

    		return target.subVectors( this.end, this.start );

    	}

    	distanceSq() {

    		return this.start.distanceToSquared( this.end );

    	}

    	distance() {

    		return this.start.distanceTo( this.end );

    	}

    	at( t, target ) {

    		return this.delta( target ).multiplyScalar( t ).add( this.start );

    	}

    	closestPointToPointParameter( point, clampToLine ) {

    		_startP.subVectors( point, this.start );
    		_startEnd.subVectors( this.end, this.start );

    		const startEnd2 = _startEnd.dot( _startEnd );
    		const startEnd_startP = _startEnd.dot( _startP );

    		let t = startEnd_startP / startEnd2;

    		if ( clampToLine ) {

    			t = clamp( t, 0, 1 );

    		}

    		return t;

    	}

    	closestPointToPoint( point, clampToLine, target ) {

    		const t = this.closestPointToPointParameter( point, clampToLine );

    		return this.delta( target ).multiplyScalar( t ).add( this.start );

    	}

    	applyMatrix4( matrix ) {

    		this.start.applyMatrix4( matrix );
    		this.end.applyMatrix4( matrix );

    		return this;

    	}

    	equals( line ) {

    		return line.start.equals( this.start ) && line.end.equals( this.end );

    	}

    	clone() {

    		return new this.constructor().copy( this );

    	}

    }

    const _vector$3 = /*@__PURE__*/ new Vector3();

    class SpotLightHelper extends Object3D {

    	constructor( light, color ) {

    		super();

    		this.light = light;
    		this.light.updateMatrixWorld();

    		this.matrix = light.matrixWorld;
    		this.matrixAutoUpdate = false;

    		this.color = color;

    		const geometry = new BufferGeometry();

    		const positions = [
    			0, 0, 0, 	0, 0, 1,
    			0, 0, 0, 	1, 0, 1,
    			0, 0, 0,	- 1, 0, 1,
    			0, 0, 0, 	0, 1, 1,
    			0, 0, 0, 	0, - 1, 1
    		];

    		for ( let i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {

    			const p1 = ( i / l ) * Math.PI * 2;
    			const p2 = ( j / l ) * Math.PI * 2;

    			positions.push(
    				Math.cos( p1 ), Math.sin( p1 ), 1,
    				Math.cos( p2 ), Math.sin( p2 ), 1
    			);

    		}

    		geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );

    		const material = new LineBasicMaterial( { fog: false, toneMapped: false } );

    		this.cone = new LineSegments( geometry, material );
    		this.add( this.cone );

    		this.update();

    	}

    	dispose() {

    		this.cone.geometry.dispose();
    		this.cone.material.dispose();

    	}

    	update() {

    		this.light.updateMatrixWorld();

    		const coneLength = this.light.distance ? this.light.distance : 1000;
    		const coneWidth = coneLength * Math.tan( this.light.angle );

    		this.cone.scale.set( coneWidth, coneWidth, coneLength );

    		_vector$3.setFromMatrixPosition( this.light.target.matrixWorld );

    		this.cone.lookAt( _vector$3 );

    		if ( this.color !== undefined ) {

    			this.cone.material.color.set( this.color );

    		} else {

    			this.cone.material.color.copy( this.light.color );

    		}

    	}

    }

    const _vector$2 = /*@__PURE__*/ new Vector3();
    const _boneMatrix = /*@__PURE__*/ new Matrix4();
    const _matrixWorldInv = /*@__PURE__*/ new Matrix4();


    class SkeletonHelper extends LineSegments {

    	constructor( object ) {

    		const bones = getBoneList( object );

    		const geometry = new BufferGeometry();

    		const vertices = [];
    		const colors = [];

    		const color1 = new Color( 0, 0, 1 );
    		const color2 = new Color( 0, 1, 0 );

    		for ( let i = 0; i < bones.length; i ++ ) {

    			const bone = bones[ i ];

    			if ( bone.parent && bone.parent.isBone ) {

    				vertices.push( 0, 0, 0 );
    				vertices.push( 0, 0, 0 );
    				colors.push( color1.r, color1.g, color1.b );
    				colors.push( color2.r, color2.g, color2.b );

    			}

    		}

    		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

    		const material = new LineBasicMaterial( { vertexColors: true, depthTest: false, depthWrite: false, toneMapped: false, transparent: true } );

    		super( geometry, material );

    		this.isSkeletonHelper = true;

    		this.type = 'SkeletonHelper';

    		this.root = object;
    		this.bones = bones;

    		this.matrix = object.matrixWorld;
    		this.matrixAutoUpdate = false;

    	}

    	updateMatrixWorld( force ) {

    		const bones = this.bones;

    		const geometry = this.geometry;
    		const position = geometry.getAttribute( 'position' );

    		_matrixWorldInv.copy( this.root.matrixWorld ).invert();

    		for ( let i = 0, j = 0; i < bones.length; i ++ ) {

    			const bone = bones[ i ];

    			if ( bone.parent && bone.parent.isBone ) {

    				_boneMatrix.multiplyMatrices( _matrixWorldInv, bone.matrixWorld );
    				_vector$2.setFromMatrixPosition( _boneMatrix );
    				position.setXYZ( j, _vector$2.x, _vector$2.y, _vector$2.z );

    				_boneMatrix.multiplyMatrices( _matrixWorldInv, bone.parent.matrixWorld );
    				_vector$2.setFromMatrixPosition( _boneMatrix );
    				position.setXYZ( j + 1, _vector$2.x, _vector$2.y, _vector$2.z );

    				j += 2;

    			}

    		}

    		geometry.getAttribute( 'position' ).needsUpdate = true;

    		super.updateMatrixWorld( force );

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();

    	}

    }


    function getBoneList( object ) {

    	const boneList = [];

    	if ( object.isBone === true ) {

    		boneList.push( object );

    	}

    	for ( let i = 0; i < object.children.length; i ++ ) {

    		boneList.push.apply( boneList, getBoneList( object.children[ i ] ) );

    	}

    	return boneList;

    }

    class PointLightHelper extends Mesh {

    	constructor( light, sphereSize, color ) {

    		const geometry = new SphereGeometry( sphereSize, 4, 2 );
    		const material = new MeshBasicMaterial( { wireframe: true, fog: false, toneMapped: false } );

    		super( geometry, material );

    		this.light = light;
    		this.light.updateMatrixWorld();

    		this.color = color;

    		this.type = 'PointLightHelper';

    		this.matrix = this.light.matrixWorld;
    		this.matrixAutoUpdate = false;

    		this.update();


    		/*
    	// TODO: delete this comment?
    	const distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );
    	const distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );

    	this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
    	this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );

    	const d = light.distance;

    	if ( d === 0.0 ) {

    		this.lightDistance.visible = false;

    	} else {

    		this.lightDistance.scale.set( d, d, d );

    	}

    	this.add( this.lightDistance );
    	*/

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();

    	}

    	update() {

    		if ( this.color !== undefined ) {

    			this.material.color.set( this.color );

    		} else {

    			this.material.color.copy( this.light.color );

    		}

    		/*
    		const d = this.light.distance;

    		if ( d === 0.0 ) {

    			this.lightDistance.visible = false;

    		} else {

    			this.lightDistance.visible = true;
    			this.lightDistance.scale.set( d, d, d );

    		}
    		*/

    	}

    }

    const _vector$1 = /*@__PURE__*/ new Vector3();
    const _color1 = /*@__PURE__*/ new Color();
    const _color2 = /*@__PURE__*/ new Color();

    class HemisphereLightHelper extends Object3D {

    	constructor( light, size, color ) {

    		super();

    		this.light = light;
    		this.light.updateMatrixWorld();

    		this.matrix = light.matrixWorld;
    		this.matrixAutoUpdate = false;

    		this.color = color;

    		const geometry = new OctahedronGeometry( size );
    		geometry.rotateY( Math.PI * 0.5 );

    		this.material = new MeshBasicMaterial( { wireframe: true, fog: false, toneMapped: false } );
    		if ( this.color === undefined ) this.material.vertexColors = true;

    		const position = geometry.getAttribute( 'position' );
    		const colors = new Float32Array( position.count * 3 );

    		geometry.setAttribute( 'color', new BufferAttribute( colors, 3 ) );

    		this.add( new Mesh( geometry, this.material ) );

    		this.update();

    	}

    	dispose() {

    		this.children[ 0 ].geometry.dispose();
    		this.children[ 0 ].material.dispose();

    	}

    	update() {

    		const mesh = this.children[ 0 ];

    		if ( this.color !== undefined ) {

    			this.material.color.set( this.color );

    		} else {

    			const colors = mesh.geometry.getAttribute( 'color' );

    			_color1.copy( this.light.color );
    			_color2.copy( this.light.groundColor );

    			for ( let i = 0, l = colors.count; i < l; i ++ ) {

    				const color = ( i < ( l / 2 ) ) ? _color1 : _color2;

    				colors.setXYZ( i, color.r, color.g, color.b );

    			}

    			colors.needsUpdate = true;

    		}

    		mesh.lookAt( _vector$1.setFromMatrixPosition( this.light.matrixWorld ).negate() );

    	}

    }

    class GridHelper extends LineSegments {

    	constructor( size = 10, divisions = 10, color1 = 0x444444, color2 = 0x888888 ) {

    		color1 = new Color( color1 );
    		color2 = new Color( color2 );

    		const center = divisions / 2;
    		const step = size / divisions;
    		const halfSize = size / 2;

    		const vertices = [], colors = [];

    		for ( let i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {

    			vertices.push( - halfSize, 0, k, halfSize, 0, k );
    			vertices.push( k, 0, - halfSize, k, 0, halfSize );

    			const color = i === center ? color1 : color2;

    			color.toArray( colors, j ); j += 3;
    			color.toArray( colors, j ); j += 3;
    			color.toArray( colors, j ); j += 3;
    			color.toArray( colors, j ); j += 3;

    		}

    		const geometry = new BufferGeometry();
    		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

    		const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } );

    		super( geometry, material );

    		this.type = 'GridHelper';

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();

    	}

    }

    class PolarGridHelper extends LineSegments {

    	constructor( radius = 10, sectors = 16, rings = 8, divisions = 64, color1 = 0x444444, color2 = 0x888888 ) {

    		color1 = new Color( color1 );
    		color2 = new Color( color2 );

    		const vertices = [];
    		const colors = [];

    		// create the sectors

    		if ( sectors > 1 ) {

    			for ( let i = 0; i < sectors; i ++ ) {

    				const v = ( i / sectors ) * ( Math.PI * 2 );

    				const x = Math.sin( v ) * radius;
    				const z = Math.cos( v ) * radius;

    				vertices.push( 0, 0, 0 );
    				vertices.push( x, 0, z );

    				const color = ( i & 1 ) ? color1 : color2;

    				colors.push( color.r, color.g, color.b );
    				colors.push( color.r, color.g, color.b );

    			}

    		}

    		// create the rings

    		for ( let i = 0; i < rings; i ++ ) {

    			const color = ( i & 1 ) ? color1 : color2;

    			const r = radius - ( radius / rings * i );

    			for ( let j = 0; j < divisions; j ++ ) {

    				// first vertex

    				let v = ( j / divisions ) * ( Math.PI * 2 );

    				let x = Math.sin( v ) * r;
    				let z = Math.cos( v ) * r;

    				vertices.push( x, 0, z );
    				colors.push( color.r, color.g, color.b );

    				// second vertex

    				v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );

    				x = Math.sin( v ) * r;
    				z = Math.cos( v ) * r;

    				vertices.push( x, 0, z );
    				colors.push( color.r, color.g, color.b );

    			}

    		}

    		const geometry = new BufferGeometry();
    		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

    		const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } );

    		super( geometry, material );

    		this.type = 'PolarGridHelper';

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();

    	}

    }

    const _v1 = /*@__PURE__*/ new Vector3();
    const _v2 = /*@__PURE__*/ new Vector3();
    const _v3 = /*@__PURE__*/ new Vector3();

    class DirectionalLightHelper extends Object3D {

    	constructor( light, size, color ) {

    		super();

    		this.light = light;
    		this.light.updateMatrixWorld();

    		this.matrix = light.matrixWorld;
    		this.matrixAutoUpdate = false;

    		this.color = color;

    		if ( size === undefined ) size = 1;

    		let geometry = new BufferGeometry();
    		geometry.setAttribute( 'position', new Float32BufferAttribute( [
    			- size, size, 0,
    			size, size, 0,
    			size, - size, 0,
    			- size, - size, 0,
    			- size, size, 0
    		], 3 ) );

    		const material = new LineBasicMaterial( { fog: false, toneMapped: false } );

    		this.lightPlane = new Line( geometry, material );
    		this.add( this.lightPlane );

    		geometry = new BufferGeometry();
    		geometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );

    		this.targetLine = new Line( geometry, material );
    		this.add( this.targetLine );

    		this.update();

    	}

    	dispose() {

    		this.lightPlane.geometry.dispose();
    		this.lightPlane.material.dispose();
    		this.targetLine.geometry.dispose();
    		this.targetLine.material.dispose();

    	}

    	update() {

    		_v1.setFromMatrixPosition( this.light.matrixWorld );
    		_v2.setFromMatrixPosition( this.light.target.matrixWorld );
    		_v3.subVectors( _v2, _v1 );

    		this.lightPlane.lookAt( _v2 );

    		if ( this.color !== undefined ) {

    			this.lightPlane.material.color.set( this.color );
    			this.targetLine.material.color.set( this.color );

    		} else {

    			this.lightPlane.material.color.copy( this.light.color );
    			this.targetLine.material.color.copy( this.light.color );

    		}

    		this.targetLine.lookAt( _v2 );
    		this.targetLine.scale.z = _v3.length();

    	}

    }

    const _vector = /*@__PURE__*/ new Vector3();
    const _camera = /*@__PURE__*/ new Camera();

    /**
     *	- shows frustum, line of sight and up of the camera
     *	- suitable for fast updates
     * 	- based on frustum visualization in lightgl.js shadowmap example
     *		https://github.com/evanw/lightgl.js/blob/master/tests/shadowmap.html
     */

    class CameraHelper extends LineSegments {

    	constructor( camera ) {

    		const geometry = new BufferGeometry();
    		const material = new LineBasicMaterial( { color: 0xffffff, vertexColors: true, toneMapped: false } );

    		const vertices = [];
    		const colors = [];

    		const pointMap = {};

    		// near

    		addLine( 'n1', 'n2' );
    		addLine( 'n2', 'n4' );
    		addLine( 'n4', 'n3' );
    		addLine( 'n3', 'n1' );

    		// far

    		addLine( 'f1', 'f2' );
    		addLine( 'f2', 'f4' );
    		addLine( 'f4', 'f3' );
    		addLine( 'f3', 'f1' );

    		// sides

    		addLine( 'n1', 'f1' );
    		addLine( 'n2', 'f2' );
    		addLine( 'n3', 'f3' );
    		addLine( 'n4', 'f4' );

    		// cone

    		addLine( 'p', 'n1' );
    		addLine( 'p', 'n2' );
    		addLine( 'p', 'n3' );
    		addLine( 'p', 'n4' );

    		// up

    		addLine( 'u1', 'u2' );
    		addLine( 'u2', 'u3' );
    		addLine( 'u3', 'u1' );

    		// target

    		addLine( 'c', 't' );
    		addLine( 'p', 'c' );

    		// cross

    		addLine( 'cn1', 'cn2' );
    		addLine( 'cn3', 'cn4' );

    		addLine( 'cf1', 'cf2' );
    		addLine( 'cf3', 'cf4' );

    		function addLine( a, b ) {

    			addPoint( a );
    			addPoint( b );

    		}

    		function addPoint( id ) {

    			vertices.push( 0, 0, 0 );
    			colors.push( 0, 0, 0 );

    			if ( pointMap[ id ] === undefined ) {

    				pointMap[ id ] = [];

    			}

    			pointMap[ id ].push( ( vertices.length / 3 ) - 1 );

    		}

    		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

    		super( geometry, material );

    		this.type = 'CameraHelper';

    		this.camera = camera;
    		if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();

    		this.matrix = camera.matrixWorld;
    		this.matrixAutoUpdate = false;

    		this.pointMap = pointMap;

    		this.update();

    		// colors

    		const colorFrustum = new Color( 0xffaa00 );
    		const colorCone = new Color( 0xff0000 );
    		const colorUp = new Color( 0x00aaff );
    		const colorTarget = new Color( 0xffffff );
    		const colorCross = new Color( 0x333333 );

    		this.setColors( colorFrustum, colorCone, colorUp, colorTarget, colorCross );

    	}

    	setColors( frustum, cone, up, target, cross ) {

    		const geometry = this.geometry;

    		const colorAttribute = geometry.getAttribute( 'color' );

    		// near

    		colorAttribute.setXYZ( 0, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 1, frustum.r, frustum.g, frustum.b ); // n1, n2
    		colorAttribute.setXYZ( 2, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 3, frustum.r, frustum.g, frustum.b ); // n2, n4
    		colorAttribute.setXYZ( 4, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 5, frustum.r, frustum.g, frustum.b ); // n4, n3
    		colorAttribute.setXYZ( 6, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 7, frustum.r, frustum.g, frustum.b ); // n3, n1

    		// far

    		colorAttribute.setXYZ( 8, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 9, frustum.r, frustum.g, frustum.b ); // f1, f2
    		colorAttribute.setXYZ( 10, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 11, frustum.r, frustum.g, frustum.b ); // f2, f4
    		colorAttribute.setXYZ( 12, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 13, frustum.r, frustum.g, frustum.b ); // f4, f3
    		colorAttribute.setXYZ( 14, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 15, frustum.r, frustum.g, frustum.b ); // f3, f1

    		// sides

    		colorAttribute.setXYZ( 16, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 17, frustum.r, frustum.g, frustum.b ); // n1, f1
    		colorAttribute.setXYZ( 18, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 19, frustum.r, frustum.g, frustum.b ); // n2, f2
    		colorAttribute.setXYZ( 20, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 21, frustum.r, frustum.g, frustum.b ); // n3, f3
    		colorAttribute.setXYZ( 22, frustum.r, frustum.g, frustum.b ); colorAttribute.setXYZ( 23, frustum.r, frustum.g, frustum.b ); // n4, f4

    		// cone

    		colorAttribute.setXYZ( 24, cone.r, cone.g, cone.b ); colorAttribute.setXYZ( 25, cone.r, cone.g, cone.b ); // p, n1
    		colorAttribute.setXYZ( 26, cone.r, cone.g, cone.b ); colorAttribute.setXYZ( 27, cone.r, cone.g, cone.b ); // p, n2
    		colorAttribute.setXYZ( 28, cone.r, cone.g, cone.b ); colorAttribute.setXYZ( 29, cone.r, cone.g, cone.b ); // p, n3
    		colorAttribute.setXYZ( 30, cone.r, cone.g, cone.b ); colorAttribute.setXYZ( 31, cone.r, cone.g, cone.b ); // p, n4

    		// up

    		colorAttribute.setXYZ( 32, up.r, up.g, up.b ); colorAttribute.setXYZ( 33, up.r, up.g, up.b ); // u1, u2
    		colorAttribute.setXYZ( 34, up.r, up.g, up.b ); colorAttribute.setXYZ( 35, up.r, up.g, up.b ); // u2, u3
    		colorAttribute.setXYZ( 36, up.r, up.g, up.b ); colorAttribute.setXYZ( 37, up.r, up.g, up.b ); // u3, u1

    		// target

    		colorAttribute.setXYZ( 38, target.r, target.g, target.b ); colorAttribute.setXYZ( 39, target.r, target.g, target.b ); // c, t
    		colorAttribute.setXYZ( 40, cross.r, cross.g, cross.b ); colorAttribute.setXYZ( 41, cross.r, cross.g, cross.b ); // p, c

    		// cross

    		colorAttribute.setXYZ( 42, cross.r, cross.g, cross.b ); colorAttribute.setXYZ( 43, cross.r, cross.g, cross.b ); // cn1, cn2
    		colorAttribute.setXYZ( 44, cross.r, cross.g, cross.b ); colorAttribute.setXYZ( 45, cross.r, cross.g, cross.b ); // cn3, cn4

    		colorAttribute.setXYZ( 46, cross.r, cross.g, cross.b ); colorAttribute.setXYZ( 47, cross.r, cross.g, cross.b ); // cf1, cf2
    		colorAttribute.setXYZ( 48, cross.r, cross.g, cross.b ); colorAttribute.setXYZ( 49, cross.r, cross.g, cross.b ); // cf3, cf4

    		colorAttribute.needsUpdate = true;

    	}

    	update() {

    		const geometry = this.geometry;
    		const pointMap = this.pointMap;

    		const w = 1, h = 1;

    		// we need just camera projection matrix inverse
    		// world matrix must be identity

    		_camera.projectionMatrixInverse.copy( this.camera.projectionMatrixInverse );

    		// center / target

    		setPoint( 'c', pointMap, geometry, _camera, 0, 0, - 1 );
    		setPoint( 't', pointMap, geometry, _camera, 0, 0, 1 );

    		// near

    		setPoint( 'n1', pointMap, geometry, _camera, - w, - h, - 1 );
    		setPoint( 'n2', pointMap, geometry, _camera, w, - h, - 1 );
    		setPoint( 'n3', pointMap, geometry, _camera, - w, h, - 1 );
    		setPoint( 'n4', pointMap, geometry, _camera, w, h, - 1 );

    		// far

    		setPoint( 'f1', pointMap, geometry, _camera, - w, - h, 1 );
    		setPoint( 'f2', pointMap, geometry, _camera, w, - h, 1 );
    		setPoint( 'f3', pointMap, geometry, _camera, - w, h, 1 );
    		setPoint( 'f4', pointMap, geometry, _camera, w, h, 1 );

    		// up

    		setPoint( 'u1', pointMap, geometry, _camera, w * 0.7, h * 1.1, - 1 );
    		setPoint( 'u2', pointMap, geometry, _camera, - w * 0.7, h * 1.1, - 1 );
    		setPoint( 'u3', pointMap, geometry, _camera, 0, h * 2, - 1 );

    		// cross

    		setPoint( 'cf1', pointMap, geometry, _camera, - w, 0, 1 );
    		setPoint( 'cf2', pointMap, geometry, _camera, w, 0, 1 );
    		setPoint( 'cf3', pointMap, geometry, _camera, 0, - h, 1 );
    		setPoint( 'cf4', pointMap, geometry, _camera, 0, h, 1 );

    		setPoint( 'cn1', pointMap, geometry, _camera, - w, 0, - 1 );
    		setPoint( 'cn2', pointMap, geometry, _camera, w, 0, - 1 );
    		setPoint( 'cn3', pointMap, geometry, _camera, 0, - h, - 1 );
    		setPoint( 'cn4', pointMap, geometry, _camera, 0, h, - 1 );

    		geometry.getAttribute( 'position' ).needsUpdate = true;

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();

    	}

    }


    function setPoint( point, pointMap, geometry, camera, x, y, z ) {

    	_vector.set( x, y, z ).unproject( camera );

    	const points = pointMap[ point ];

    	if ( points !== undefined ) {

    		const position = geometry.getAttribute( 'position' );

    		for ( let i = 0, l = points.length; i < l; i ++ ) {

    			position.setXYZ( points[ i ], _vector.x, _vector.y, _vector.z );

    		}

    	}

    }

    const _box = /*@__PURE__*/ new Box3();

    class BoxHelper extends LineSegments {

    	constructor( object, color = 0xffff00 ) {

    		const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
    		const positions = new Float32Array( 8 * 3 );

    		const geometry = new BufferGeometry();
    		geometry.setIndex( new BufferAttribute( indices, 1 ) );
    		geometry.setAttribute( 'position', new BufferAttribute( positions, 3 ) );

    		super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );

    		this.object = object;
    		this.type = 'BoxHelper';

    		this.matrixAutoUpdate = false;

    		this.update();

    	}

    	update( object ) {

    		if ( object !== undefined ) {

    			console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );

    		}

    		if ( this.object !== undefined ) {

    			_box.setFromObject( this.object );

    		}

    		if ( _box.isEmpty() ) return;

    		const min = _box.min;
    		const max = _box.max;

    		/*
    			5____4
    		1/___0/|
    		| 6__|_7
    		2/___3/

    		0: max.x, max.y, max.z
    		1: min.x, max.y, max.z
    		2: min.x, min.y, max.z
    		3: max.x, min.y, max.z
    		4: max.x, max.y, min.z
    		5: min.x, max.y, min.z
    		6: min.x, min.y, min.z
    		7: max.x, min.y, min.z
    		*/

    		const position = this.geometry.attributes.position;
    		const array = position.array;

    		array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
    		array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
    		array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
    		array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
    		array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
    		array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
    		array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
    		array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;

    		position.needsUpdate = true;

    		this.geometry.computeBoundingSphere();

    	}

    	setFromObject( object ) {

    		this.object = object;
    		this.update();

    		return this;

    	}

    	copy( source, recursive ) {

    		super.copy( source, recursive );

    		this.object = source.object;

    		return this;

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();

    	}

    }

    class Box3Helper extends LineSegments {

    	constructor( box, color = 0xffff00 ) {

    		const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );

    		const positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];

    		const geometry = new BufferGeometry();

    		geometry.setIndex( new BufferAttribute( indices, 1 ) );

    		geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );

    		super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );

    		this.box = box;

    		this.type = 'Box3Helper';

    		this.geometry.computeBoundingSphere();

    	}

    	updateMatrixWorld( force ) {

    		const box = this.box;

    		if ( box.isEmpty() ) return;

    		box.getCenter( this.position );

    		box.getSize( this.scale );

    		this.scale.multiplyScalar( 0.5 );

    		super.updateMatrixWorld( force );

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();

    	}

    }

    class PlaneHelper extends Line {

    	constructor( plane, size = 1, hex = 0xffff00 ) {

    		const color = hex;

    		const positions = [ 1, - 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, - 1, 0, 1, 1, 0 ];

    		const geometry = new BufferGeometry();
    		geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
    		geometry.computeBoundingSphere();

    		super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );

    		this.type = 'PlaneHelper';

    		this.plane = plane;

    		this.size = size;

    		const positions2 = [ 1, 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, 1, 0, - 1, - 1, 0, 1, - 1, 0 ];

    		const geometry2 = new BufferGeometry();
    		geometry2.setAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
    		geometry2.computeBoundingSphere();

    		this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false, toneMapped: false } ) ) );

    	}

    	updateMatrixWorld( force ) {

    		this.position.set( 0, 0, 0 );

    		this.scale.set( 0.5 * this.size, 0.5 * this.size, 1 );

    		this.lookAt( this.plane.normal );

    		this.translateZ( - this.plane.constant );

    		super.updateMatrixWorld( force );

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();
    		this.children[ 0 ].geometry.dispose();
    		this.children[ 0 ].material.dispose();

    	}

    }

    const _axis = /*@__PURE__*/ new Vector3();
    let _lineGeometry, _coneGeometry;

    class ArrowHelper extends Object3D {

    	// dir is assumed to be normalized

    	constructor( dir = new Vector3( 0, 0, 1 ), origin = new Vector3( 0, 0, 0 ), length = 1, color = 0xffff00, headLength = length * 0.2, headWidth = headLength * 0.2 ) {

    		super();

    		this.type = 'ArrowHelper';

    		if ( _lineGeometry === undefined ) {

    			_lineGeometry = new BufferGeometry();
    			_lineGeometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );

    			_coneGeometry = new CylinderGeometry( 0, 0.5, 1, 5, 1 );
    			_coneGeometry.translate( 0, - 0.5, 0 );

    		}

    		this.position.copy( origin );

    		this.line = new Line( _lineGeometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );
    		this.line.matrixAutoUpdate = false;
    		this.add( this.line );

    		this.cone = new Mesh( _coneGeometry, new MeshBasicMaterial( { color: color, toneMapped: false } ) );
    		this.cone.matrixAutoUpdate = false;
    		this.add( this.cone );

    		this.setDirection( dir );
    		this.setLength( length, headLength, headWidth );

    	}

    	setDirection( dir ) {

    		// dir is assumed to be normalized

    		if ( dir.y > 0.99999 ) {

    			this.quaternion.set( 0, 0, 0, 1 );

    		} else if ( dir.y < - 0.99999 ) {

    			this.quaternion.set( 1, 0, 0, 0 );

    		} else {

    			_axis.set( dir.z, 0, - dir.x ).normalize();

    			const radians = Math.acos( dir.y );

    			this.quaternion.setFromAxisAngle( _axis, radians );

    		}

    	}

    	setLength( length, headLength = length * 0.2, headWidth = headLength * 0.2 ) {

    		this.line.scale.set( 1, Math.max( 0.0001, length - headLength ), 1 ); // see #17458
    		this.line.updateMatrix();

    		this.cone.scale.set( headWidth, headLength, headWidth );
    		this.cone.position.y = length;
    		this.cone.updateMatrix();

    	}

    	setColor( color ) {

    		this.line.material.color.set( color );
    		this.cone.material.color.set( color );

    	}

    	copy( source ) {

    		super.copy( source, false );

    		this.line.copy( source.line );
    		this.cone.copy( source.cone );

    		return this;

    	}

    	dispose() {

    		this.line.geometry.dispose();
    		this.line.material.dispose();
    		this.cone.geometry.dispose();
    		this.cone.material.dispose();

    	}

    }

    class AxesHelper extends LineSegments {

    	constructor( size = 1 ) {

    		const vertices = [
    			0, 0, 0,	size, 0, 0,
    			0, 0, 0,	0, size, 0,
    			0, 0, 0,	0, 0, size
    		];

    		const colors = [
    			1, 0, 0,	1, 0.6, 0,
    			0, 1, 0,	0.6, 1, 0,
    			0, 0, 1,	0, 0.6, 1
    		];

    		const geometry = new BufferGeometry();
    		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
    		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

    		const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } );

    		super( geometry, material );

    		this.type = 'AxesHelper';

    	}

    	setColors( xAxisColor, yAxisColor, zAxisColor ) {

    		const color = new Color();
    		const array = this.geometry.attributes.color.array;

    		color.set( xAxisColor );
    		color.toArray( array, 0 );
    		color.toArray( array, 3 );

    		color.set( yAxisColor );
    		color.toArray( array, 6 );
    		color.toArray( array, 9 );

    		color.set( zAxisColor );
    		color.toArray( array, 12 );
    		color.toArray( array, 15 );

    		this.geometry.attributes.color.needsUpdate = true;

    		return this;

    	}

    	dispose() {

    		this.geometry.dispose();
    		this.material.dispose();

    	}

    }

    class ShapePath {

    	constructor() {

    		this.type = 'ShapePath';

    		this.color = new Color();

    		this.subPaths = [];
    		this.currentPath = null;

    	}

    	moveTo( x, y ) {

    		this.currentPath = new Path();
    		this.subPaths.push( this.currentPath );
    		this.currentPath.moveTo( x, y );

    		return this;

    	}

    	lineTo( x, y ) {

    		this.currentPath.lineTo( x, y );

    		return this;

    	}

    	quadraticCurveTo( aCPx, aCPy, aX, aY ) {

    		this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );

    		return this;

    	}

    	bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

    		this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );

    		return this;

    	}

    	splineThru( pts ) {

    		this.currentPath.splineThru( pts );

    		return this;

    	}

    	toShapes( isCCW ) {

    		function toShapesNoHoles( inSubpaths ) {

    			const shapes = [];

    			for ( let i = 0, l = inSubpaths.length; i < l; i ++ ) {

    				const tmpPath = inSubpaths[ i ];

    				const tmpShape = new Shape();
    				tmpShape.curves = tmpPath.curves;

    				shapes.push( tmpShape );

    			}

    			return shapes;

    		}

    		function isPointInsidePolygon( inPt, inPolygon ) {

    			const polyLen = inPolygon.length;

    			// inPt on polygon contour => immediate success    or
    			// toggling of inside/outside at every single! intersection point of an edge
    			//  with the horizontal line through inPt, left of inPt
    			//  not counting lowerY endpoints of edges and whole edges on that line
    			let inside = false;
    			for ( let p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {

    				let edgeLowPt = inPolygon[ p ];
    				let edgeHighPt = inPolygon[ q ];

    				let edgeDx = edgeHighPt.x - edgeLowPt.x;
    				let edgeDy = edgeHighPt.y - edgeLowPt.y;

    				if ( Math.abs( edgeDy ) > Number.EPSILON ) {

    					// not parallel
    					if ( edgeDy < 0 ) {

    						edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;
    						edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;

    					}

    					if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;

    					if ( inPt.y === edgeLowPt.y ) {

    						if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
    						// continue;				// no intersection or edgeLowPt => doesn't count !!!

    					} else {

    						const perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
    						if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
    						if ( perpEdge < 0 ) 				continue;
    						inside = ! inside;		// true intersection left of inPt

    					}

    				} else {

    					// parallel or collinear
    					if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
    					// edge lies on the same horizontal line as inPt
    					if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
    						 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
    					// continue;

    				}

    			}

    			return	inside;

    		}

    		const isClockWise = ShapeUtils.isClockWise;

    		const subPaths = this.subPaths;
    		if ( subPaths.length === 0 ) return [];

    		let solid, tmpPath, tmpShape;
    		const shapes = [];

    		if ( subPaths.length === 1 ) {

    			tmpPath = subPaths[ 0 ];
    			tmpShape = new Shape();
    			tmpShape.curves = tmpPath.curves;
    			shapes.push( tmpShape );
    			return shapes;

    		}

    		let holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
    		holesFirst = isCCW ? ! holesFirst : holesFirst;

    		// console.log("Holes first", holesFirst);

    		const betterShapeHoles = [];
    		const newShapes = [];
    		let newShapeHoles = [];
    		let mainIdx = 0;
    		let tmpPoints;

    		newShapes[ mainIdx ] = undefined;
    		newShapeHoles[ mainIdx ] = [];

    		for ( let i = 0, l = subPaths.length; i < l; i ++ ) {

    			tmpPath = subPaths[ i ];
    			tmpPoints = tmpPath.getPoints();
    			solid = isClockWise( tmpPoints );
    			solid = isCCW ? ! solid : solid;

    			if ( solid ) {

    				if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;

    				newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };
    				newShapes[ mainIdx ].s.curves = tmpPath.curves;

    				if ( holesFirst )	mainIdx ++;
    				newShapeHoles[ mainIdx ] = [];

    				//console.log('cw', i);

    			} else {

    				newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );

    				//console.log('ccw', i);

    			}

    		}

    		// only Holes? -> probably all Shapes with wrong orientation
    		if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );


    		if ( newShapes.length > 1 ) {

    			let ambiguous = false;
    			let toChange = 0;

    			for ( let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

    				betterShapeHoles[ sIdx ] = [];

    			}

    			for ( let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

    				const sho = newShapeHoles[ sIdx ];

    				for ( let hIdx = 0; hIdx < sho.length; hIdx ++ ) {

    					const ho = sho[ hIdx ];
    					let hole_unassigned = true;

    					for ( let s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {

    						if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {

    							if ( sIdx !== s2Idx )	toChange ++;

    							if ( hole_unassigned ) {

    								hole_unassigned = false;
    								betterShapeHoles[ s2Idx ].push( ho );

    							} else {

    								ambiguous = true;

    							}

    						}

    					}

    					if ( hole_unassigned ) {

    						betterShapeHoles[ sIdx ].push( ho );

    					}

    				}

    			}

    			if ( toChange > 0 && ambiguous === false ) {

    				newShapeHoles = betterShapeHoles;

    			}

    		}

    		let tmpHoles;

    		for ( let i = 0, il = newShapes.length; i < il; i ++ ) {

    			tmpShape = newShapes[ i ].s;
    			shapes.push( tmpShape );
    			tmpHoles = newShapeHoles[ i ];

    			for ( let j = 0, jl = tmpHoles.length; j < jl; j ++ ) {

    				tmpShape.holes.push( tmpHoles[ j ].h );

    			}

    		}

    		//console.log("shape", shapes);

    		return shapes;

    	}

    }

    // Fast Half Float Conversions, http://www.fox-toolkit.org/ftp/fasthalffloatconversion.pdf

    const _tables = /*@__PURE__*/ _generateTables();

    function _generateTables() {

    	// float32 to float16 helpers

    	const buffer = new ArrayBuffer( 4 );
    	const floatView = new Float32Array( buffer );
    	const uint32View = new Uint32Array( buffer );

    	const baseTable = new Uint32Array( 512 );
    	const shiftTable = new Uint32Array( 512 );

    	for ( let i = 0; i < 256; ++ i ) {

    		const e = i - 127;

    		// very small number (0, -0)

    		if ( e < - 27 ) {

    			baseTable[ i ] = 0x0000;
    			baseTable[ i | 0x100 ] = 0x8000;
    			shiftTable[ i ] = 24;
    			shiftTable[ i | 0x100 ] = 24;

    			// small number (denorm)

    		} else if ( e < - 14 ) {

    			baseTable[ i ] = 0x0400 >> ( - e - 14 );
    			baseTable[ i | 0x100 ] = ( 0x0400 >> ( - e - 14 ) ) | 0x8000;
    			shiftTable[ i ] = - e - 1;
    			shiftTable[ i | 0x100 ] = - e - 1;

    			// normal number

    		} else if ( e <= 15 ) {

    			baseTable[ i ] = ( e + 15 ) << 10;
    			baseTable[ i | 0x100 ] = ( ( e + 15 ) << 10 ) | 0x8000;
    			shiftTable[ i ] = 13;
    			shiftTable[ i | 0x100 ] = 13;

    			// large number (Infinity, -Infinity)

    		} else if ( e < 128 ) {

    			baseTable[ i ] = 0x7c00;
    			baseTable[ i | 0x100 ] = 0xfc00;
    			shiftTable[ i ] = 24;
    			shiftTable[ i | 0x100 ] = 24;

    			// stay (NaN, Infinity, -Infinity)

    		} else {

    			baseTable[ i ] = 0x7c00;
    			baseTable[ i | 0x100 ] = 0xfc00;
    			shiftTable[ i ] = 13;
    			shiftTable[ i | 0x100 ] = 13;

    		}

    	}

    	// float16 to float32 helpers

    	const mantissaTable = new Uint32Array( 2048 );
    	const exponentTable = new Uint32Array( 64 );
    	const offsetTable = new Uint32Array( 64 );

    	for ( let i = 1; i < 1024; ++ i ) {

    		let m = i << 13; // zero pad mantissa bits
    		let e = 0; // zero exponent

    		// normalized
    		while ( ( m & 0x00800000 ) === 0 ) {

    			m <<= 1;
    			e -= 0x00800000; // decrement exponent

    		}

    		m &= ~ 0x00800000; // clear leading 1 bit
    		e += 0x38800000; // adjust bias

    		mantissaTable[ i ] = m | e;

    	}

    	for ( let i = 1024; i < 2048; ++ i ) {

    		mantissaTable[ i ] = 0x38000000 + ( ( i - 1024 ) << 13 );

    	}

    	for ( let i = 1; i < 31; ++ i ) {

    		exponentTable[ i ] = i << 23;

    	}

    	exponentTable[ 31 ] = 0x47800000;
    	exponentTable[ 32 ] = 0x80000000;

    	for ( let i = 33; i < 63; ++ i ) {

    		exponentTable[ i ] = 0x80000000 + ( ( i - 32 ) << 23 );

    	}

    	exponentTable[ 63 ] = 0xc7800000;

    	for ( let i = 1; i < 64; ++ i ) {

    		if ( i !== 32 ) {

    			offsetTable[ i ] = 1024;

    		}

    	}

    	return {
    		floatView: floatView,
    		uint32View: uint32View,
    		baseTable: baseTable,
    		shiftTable: shiftTable,
    		mantissaTable: mantissaTable,
    		exponentTable: exponentTable,
    		offsetTable: offsetTable
    	};

    }

    // float32 to float16

    function toHalfFloat( val ) {

    	if ( Math.abs( val ) > 65504 ) console.warn( 'THREE.DataUtils.toHalfFloat(): Value out of range.' );

    	val = clamp( val, - 65504, 65504 );

    	_tables.floatView[ 0 ] = val;
    	const f = _tables.uint32View[ 0 ];
    	const e = ( f >> 23 ) & 0x1ff;
    	return _tables.baseTable[ e ] + ( ( f & 0x007fffff ) >> _tables.shiftTable[ e ] );

    }

    // float16 to float32

    function fromHalfFloat( val ) {

    	const m = val >> 10;
    	_tables.uint32View[ 0 ] = _tables.mantissaTable[ _tables.offsetTable[ m ] + ( val & 0x3ff ) ] + _tables.exponentTable[ m ];
    	return _tables.floatView[ 0 ];

    }

    var DataUtils = /*#__PURE__*/Object.freeze({
    	__proto__: null,
    	toHalfFloat: toHalfFloat,
    	fromHalfFloat: fromHalfFloat
    });

    // r134, d65e0af06644fe5a84a6fc0e372f4318f95a04c0

    function ImmediateRenderObject() {

    	console.error( 'THREE.ImmediateRenderObject has been removed.' );

    }

    // r138, 48b05d3500acc084df50be9b4c90781ad9b8cb17

    class WebGLMultisampleRenderTarget extends WebGLRenderTarget {

    	constructor( width, height, options ) {

    		console.error( 'THREE.WebGLMultisampleRenderTarget has been removed. Use a normal render target and set the "samples" property to greater 0 to enable multisampling.' );
    		super( width, height, options );
    		this.samples = 4;

    	}

    }

    // r138, f9cd9cab03b7b64244e304900a3a2eeaa3a588ce

    class DataTexture2DArray extends DataArrayTexture {

    	constructor( data, width, height, depth ) {

    		console.warn( 'THREE.DataTexture2DArray has been renamed to DataArrayTexture.' );
    		super( data, width, height, depth );

    	}

    }

    // r138, f9cd9cab03b7b64244e304900a3a2eeaa3a588ce

    class DataTexture3D extends Data3DTexture {

    	constructor( data, width, height, depth ) {

    		console.warn( 'THREE.DataTexture3D has been renamed to Data3DTexture.' );
    		super( data, width, height, depth );

    	}

    }

    // r144

    class BoxBufferGeometry extends BoxGeometry {

    	constructor( width, height, depth, widthSegments, heightSegments, depthSegments ) {

    		console.warn( 'THREE.BoxBufferGeometry has been renamed to THREE.BoxGeometry.' );
    		super( width, height, depth, widthSegments, heightSegments, depthSegments );


    	}

    }

    // r144

    class CapsuleBufferGeometry extends CapsuleGeometry {

    	constructor( radius, length, capSegments, radialSegments ) {

    		console.warn( 'THREE.CapsuleBufferGeometry has been renamed to THREE.CapsuleGeometry.' );
    		super( radius, length, capSegments, radialSegments );

    	}

    }

    // r144

    class CircleBufferGeometry extends CircleGeometry {

    	constructor( radius, segments, thetaStart, thetaLength ) {

    		console.warn( 'THREE.CircleBufferGeometry has been renamed to THREE.CircleGeometry.' );
    		super( radius, segments, thetaStart, thetaLength );

    	}

    }

    // r144

    class ConeBufferGeometry extends ConeGeometry {

    	constructor( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

    		console.warn( 'THREE.ConeBufferGeometry has been renamed to THREE.ConeGeometry.' );
    		super( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

    	}

    }

    // r144

    class CylinderBufferGeometry extends CylinderGeometry {

    	constructor( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

    		console.warn( 'THREE.CylinderBufferGeometry has been renamed to THREE.CylinderGeometry.' );
    		super( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

    	}

    }

    // r144

    class DodecahedronBufferGeometry extends DodecahedronGeometry {

    	constructor( radius, detail ) {

    		console.warn( 'THREE.DodecahedronBufferGeometry has been renamed to THREE.DodecahedronGeometry.' );
    		super( radius, detail );

    	}

    }

    // r144

    class ExtrudeBufferGeometry extends ExtrudeGeometry {

    	constructor( shapes, options ) {

    		console.warn( 'THREE.ExtrudeBufferGeometry has been renamed to THREE.ExtrudeGeometry.' );
    		super( shapes, options );

    	}

    }

    // r144

    class IcosahedronBufferGeometry extends IcosahedronGeometry {

    	constructor( radius, detail ) {

    		console.warn( 'THREE.IcosahedronBufferGeometry has been renamed to THREE.IcosahedronGeometry.' );
    		super( radius, detail );

    	}

    }

    // r144

    class LatheBufferGeometry extends LatheGeometry {

    	constructor( points, segments, phiStart, phiLength ) {

    		console.warn( 'THREE.LatheBufferGeometry has been renamed to THREE.LatheGeometry.' );
    		super( points, segments, phiStart, phiLength );

    	}

    }

    // r144

    class OctahedronBufferGeometry extends OctahedronGeometry {

    	constructor( radius, detail ) {

    		console.warn( 'THREE.OctahedronBufferGeometry has been renamed to THREE.OctahedronGeometry.' );
    		super( radius, detail );

    	}

    }

    // r144

    class PlaneBufferGeometry extends PlaneGeometry {

    	constructor( width, height, widthSegments, heightSegments ) {

    		console.warn( 'THREE.PlaneBufferGeometry has been renamed to THREE.PlaneGeometry.' );
    		super( width, height, widthSegments, heightSegments );

    	}

    }

    // r144

    class PolyhedronBufferGeometry extends PolyhedronGeometry {

    	constructor( vertices, indices, radius, detail ) {

    		console.warn( 'THREE.PolyhedronBufferGeometry has been renamed to THREE.PolyhedronGeometry.' );
    		super( vertices, indices, radius, detail );

    	}

    }

    // r144

    class RingBufferGeometry extends RingGeometry {

    	constructor( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {

    		console.warn( 'THREE.RingBufferGeometry has been renamed to THREE.RingGeometry.' );
    		super( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength );

    	}

    }

    // r144

    class ShapeBufferGeometry extends ShapeGeometry {

    	constructor( shapes, curveSegments ) {

    		console.warn( 'THREE.ShapeBufferGeometry has been renamed to THREE.ShapeGeometry.' );
    		super( shapes, curveSegments );

    	}

    }

    // r144

    class SphereBufferGeometry extends SphereGeometry {

    	constructor( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {

    		console.warn( 'THREE.SphereBufferGeometry has been renamed to THREE.SphereGeometry.' );
    		super( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength );

    	}

    }

    // r144

    class TetrahedronBufferGeometry extends TetrahedronGeometry {

    	constructor( radius, detail ) {

    		console.warn( 'THREE.TetrahedronBufferGeometry has been renamed to THREE.TetrahedronGeometry.' );
    		super( radius, detail );

    	}

    }

    // r144

    class TorusBufferGeometry extends TorusGeometry {

    	constructor( radius, tube, radialSegments, tubularSegments, arc ) {

    		console.warn( 'THREE.TorusBufferGeometry has been renamed to THREE.TorusGeometry.' );
    		super( radius, tube, radialSegments, tubularSegments, arc );

    	}

    }

    // r144

    class TorusKnotBufferGeometry extends TorusKnotGeometry {

    	constructor( radius, tube, tubularSegments, radialSegments, p, q ) {

    		console.warn( 'THREE.TorusKnotBufferGeometry has been renamed to THREE.TorusKnotGeometry.' );
    		super( radius, tube, tubularSegments, radialSegments, p, q );

    	}

    }

    // r144

    class TubeBufferGeometry extends TubeGeometry {

    	constructor( path, tubularSegments, radius, radialSegments, closed ) {

    		console.warn( 'THREE.TubeBufferGeometry has been renamed to THREE.TubeGeometry.' );
    		super( path, tubularSegments, radius, radialSegments, closed );

    	}

    }

    if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) {

    	__THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'register', { detail: {
    		revision: REVISION,
    	} } ) );

    }

    if ( typeof window !== 'undefined' ) {

    	if ( window.__THREE__ ) {

    		console.warn( 'WARNING: Multiple instances of Three.js being imported.' );

    	} else {

    		window.__THREE__ = REVISION;

    	}

    }

    var THREE = /*#__PURE__*/Object.freeze({
        __proto__: null,
        ACESFilmicToneMapping: ACESFilmicToneMapping,
        AddEquation: AddEquation,
        AddOperation: AddOperation,
        AdditiveAnimationBlendMode: AdditiveAnimationBlendMode,
        AdditiveBlending: AdditiveBlending,
        AlphaFormat: AlphaFormat,
        AlwaysDepth: AlwaysDepth,
        AlwaysStencilFunc: AlwaysStencilFunc,
        AmbientLight: AmbientLight,
        AmbientLightProbe: AmbientLightProbe,
        AnimationClip: AnimationClip,
        AnimationLoader: AnimationLoader,
        AnimationMixer: AnimationMixer,
        AnimationObjectGroup: AnimationObjectGroup,
        AnimationUtils: AnimationUtils,
        ArcCurve: ArcCurve,
        ArrayCamera: ArrayCamera,
        ArrowHelper: ArrowHelper,
        Audio: Audio,
        AudioAnalyser: AudioAnalyser,
        AudioContext: AudioContext,
        AudioListener: AudioListener,
        AudioLoader: AudioLoader,
        AxesHelper: AxesHelper,
        BackSide: BackSide,
        BasicDepthPacking: BasicDepthPacking,
        BasicShadowMap: BasicShadowMap,
        Bone: Bone,
        BooleanKeyframeTrack: BooleanKeyframeTrack,
        Box2: Box2,
        Box3: Box3,
        Box3Helper: Box3Helper,
        BoxBufferGeometry: BoxBufferGeometry,
        BoxGeometry: BoxGeometry,
        BoxHelper: BoxHelper,
        BufferAttribute: BufferAttribute,
        BufferGeometry: BufferGeometry,
        BufferGeometryLoader: BufferGeometryLoader,
        ByteType: ByteType,
        Cache: Cache,
        Camera: Camera,
        CameraHelper: CameraHelper,
        CanvasTexture: CanvasTexture,
        CapsuleBufferGeometry: CapsuleBufferGeometry,
        CapsuleGeometry: CapsuleGeometry,
        CatmullRomCurve3: CatmullRomCurve3,
        CineonToneMapping: CineonToneMapping,
        CircleBufferGeometry: CircleBufferGeometry,
        CircleGeometry: CircleGeometry,
        ClampToEdgeWrapping: ClampToEdgeWrapping,
        Clock: Clock,
        Color: Color,
        ColorKeyframeTrack: ColorKeyframeTrack,
        ColorManagement: ColorManagement,
        CompressedTexture: CompressedTexture,
        CompressedTextureLoader: CompressedTextureLoader,
        ConeBufferGeometry: ConeBufferGeometry,
        ConeGeometry: ConeGeometry,
        CubeCamera: CubeCamera,
        CubeReflectionMapping: CubeReflectionMapping,
        CubeRefractionMapping: CubeRefractionMapping,
        CubeTexture: CubeTexture,
        CubeTextureLoader: CubeTextureLoader,
        CubeUVReflectionMapping: CubeUVReflectionMapping,
        CubicBezierCurve: CubicBezierCurve,
        CubicBezierCurve3: CubicBezierCurve3,
        CubicInterpolant: CubicInterpolant,
        CullFaceBack: CullFaceBack,
        CullFaceFront: CullFaceFront,
        CullFaceFrontBack: CullFaceFrontBack,
        CullFaceNone: CullFaceNone,
        Curve: Curve,
        CurvePath: CurvePath,
        CustomBlending: CustomBlending,
        CustomToneMapping: CustomToneMapping,
        CylinderBufferGeometry: CylinderBufferGeometry,
        CylinderGeometry: CylinderGeometry,
        Cylindrical: Cylindrical,
        Data3DTexture: Data3DTexture,
        DataArrayTexture: DataArrayTexture,
        DataTexture: DataTexture,
        DataTexture2DArray: DataTexture2DArray,
        DataTexture3D: DataTexture3D,
        DataTextureLoader: DataTextureLoader,
        DataUtils: DataUtils,
        DecrementStencilOp: DecrementStencilOp,
        DecrementWrapStencilOp: DecrementWrapStencilOp,
        DefaultLoadingManager: DefaultLoadingManager,
        DepthFormat: DepthFormat,
        DepthStencilFormat: DepthStencilFormat,
        DepthTexture: DepthTexture,
        DirectionalLight: DirectionalLight,
        DirectionalLightHelper: DirectionalLightHelper,
        DiscreteInterpolant: DiscreteInterpolant,
        DodecahedronBufferGeometry: DodecahedronBufferGeometry,
        DodecahedronGeometry: DodecahedronGeometry,
        DoubleSide: DoubleSide,
        DstAlphaFactor: DstAlphaFactor,
        DstColorFactor: DstColorFactor,
        DynamicCopyUsage: DynamicCopyUsage,
        DynamicDrawUsage: DynamicDrawUsage,
        DynamicReadUsage: DynamicReadUsage,
        EdgesGeometry: EdgesGeometry,
        EllipseCurve: EllipseCurve,
        EqualDepth: EqualDepth,
        EqualStencilFunc: EqualStencilFunc,
        EquirectangularReflectionMapping: EquirectangularReflectionMapping,
        EquirectangularRefractionMapping: EquirectangularRefractionMapping,
        Euler: Euler,
        EventDispatcher: EventDispatcher,
        ExtrudeBufferGeometry: ExtrudeBufferGeometry,
        ExtrudeGeometry: ExtrudeGeometry,
        FileLoader: FileLoader,
        Float16BufferAttribute: Float16BufferAttribute,
        Float32BufferAttribute: Float32BufferAttribute,
        Float64BufferAttribute: Float64BufferAttribute,
        FloatType: FloatType,
        Fog: Fog,
        FogExp2: FogExp2,
        FramebufferTexture: FramebufferTexture,
        FrontSide: FrontSide,
        Frustum: Frustum,
        GLBufferAttribute: GLBufferAttribute,
        GLSL1: GLSL1,
        GLSL3: GLSL3,
        GreaterDepth: GreaterDepth,
        GreaterEqualDepth: GreaterEqualDepth,
        GreaterEqualStencilFunc: GreaterEqualStencilFunc,
        GreaterStencilFunc: GreaterStencilFunc,
        GridHelper: GridHelper,
        Group: Group,
        HalfFloatType: HalfFloatType,
        HemisphereLight: HemisphereLight,
        HemisphereLightHelper: HemisphereLightHelper,
        HemisphereLightProbe: HemisphereLightProbe,
        IcosahedronBufferGeometry: IcosahedronBufferGeometry,
        IcosahedronGeometry: IcosahedronGeometry,
        ImageBitmapLoader: ImageBitmapLoader,
        ImageLoader: ImageLoader,
        ImageUtils: ImageUtils,
        ImmediateRenderObject: ImmediateRenderObject,
        IncrementStencilOp: IncrementStencilOp,
        IncrementWrapStencilOp: IncrementWrapStencilOp,
        InstancedBufferAttribute: InstancedBufferAttribute,
        InstancedBufferGeometry: InstancedBufferGeometry,
        InstancedInterleavedBuffer: InstancedInterleavedBuffer,
        InstancedMesh: InstancedMesh,
        Int16BufferAttribute: Int16BufferAttribute,
        Int32BufferAttribute: Int32BufferAttribute,
        Int8BufferAttribute: Int8BufferAttribute,
        IntType: IntType,
        InterleavedBuffer: InterleavedBuffer,
        InterleavedBufferAttribute: InterleavedBufferAttribute,
        Interpolant: Interpolant,
        InterpolateDiscrete: InterpolateDiscrete,
        InterpolateLinear: InterpolateLinear,
        InterpolateSmooth: InterpolateSmooth,
        InvertStencilOp: InvertStencilOp,
        KeepStencilOp: KeepStencilOp,
        KeyframeTrack: KeyframeTrack,
        LOD: LOD,
        LatheBufferGeometry: LatheBufferGeometry,
        LatheGeometry: LatheGeometry,
        Layers: Layers,
        LessDepth: LessDepth,
        LessEqualDepth: LessEqualDepth,
        LessEqualStencilFunc: LessEqualStencilFunc,
        LessStencilFunc: LessStencilFunc,
        Light: Light,
        LightProbe: LightProbe,
        Line: Line,
        Line3: Line3,
        LineBasicMaterial: LineBasicMaterial,
        LineCurve: LineCurve,
        LineCurve3: LineCurve3,
        LineDashedMaterial: LineDashedMaterial,
        LineLoop: LineLoop,
        LineSegments: LineSegments,
        LinearEncoding: LinearEncoding,
        LinearFilter: LinearFilter,
        LinearInterpolant: LinearInterpolant,
        LinearMipMapLinearFilter: LinearMipMapLinearFilter,
        LinearMipMapNearestFilter: LinearMipMapNearestFilter,
        LinearMipmapLinearFilter: LinearMipmapLinearFilter,
        LinearMipmapNearestFilter: LinearMipmapNearestFilter,
        LinearSRGBColorSpace: LinearSRGBColorSpace,
        LinearToneMapping: LinearToneMapping,
        Loader: Loader,
        LoaderUtils: LoaderUtils,
        LoadingManager: LoadingManager,
        LoopOnce: LoopOnce,
        LoopPingPong: LoopPingPong,
        LoopRepeat: LoopRepeat,
        LuminanceAlphaFormat: LuminanceAlphaFormat,
        LuminanceFormat: LuminanceFormat,
        MOUSE: MOUSE,
        Material: Material,
        MaterialLoader: MaterialLoader,
        MathUtils: MathUtils,
        Matrix3: Matrix3,
        Matrix4: Matrix4,
        MaxEquation: MaxEquation,
        Mesh: Mesh,
        MeshBasicMaterial: MeshBasicMaterial,
        MeshDepthMaterial: MeshDepthMaterial,
        MeshDistanceMaterial: MeshDistanceMaterial,
        MeshLambertMaterial: MeshLambertMaterial,
        MeshMatcapMaterial: MeshMatcapMaterial,
        MeshNormalMaterial: MeshNormalMaterial,
        MeshPhongMaterial: MeshPhongMaterial,
        MeshPhysicalMaterial: MeshPhysicalMaterial,
        MeshStandardMaterial: MeshStandardMaterial,
        MeshToonMaterial: MeshToonMaterial,
        MinEquation: MinEquation,
        MirroredRepeatWrapping: MirroredRepeatWrapping,
        MixOperation: MixOperation,
        MultiplyBlending: MultiplyBlending,
        MultiplyOperation: MultiplyOperation,
        NearestFilter: NearestFilter,
        NearestMipMapLinearFilter: NearestMipMapLinearFilter,
        NearestMipMapNearestFilter: NearestMipMapNearestFilter,
        NearestMipmapLinearFilter: NearestMipmapLinearFilter,
        NearestMipmapNearestFilter: NearestMipmapNearestFilter,
        NeverDepth: NeverDepth,
        NeverStencilFunc: NeverStencilFunc,
        NoBlending: NoBlending,
        NoColorSpace: NoColorSpace,
        NoToneMapping: NoToneMapping,
        NormalAnimationBlendMode: NormalAnimationBlendMode,
        NormalBlending: NormalBlending,
        NotEqualDepth: NotEqualDepth,
        NotEqualStencilFunc: NotEqualStencilFunc,
        NumberKeyframeTrack: NumberKeyframeTrack,
        Object3D: Object3D,
        ObjectLoader: ObjectLoader,
        ObjectSpaceNormalMap: ObjectSpaceNormalMap,
        OctahedronBufferGeometry: OctahedronBufferGeometry,
        OctahedronGeometry: OctahedronGeometry,
        OneFactor: OneFactor,
        OneMinusDstAlphaFactor: OneMinusDstAlphaFactor,
        OneMinusDstColorFactor: OneMinusDstColorFactor,
        OneMinusSrcAlphaFactor: OneMinusSrcAlphaFactor,
        OneMinusSrcColorFactor: OneMinusSrcColorFactor,
        OrthographicCamera: OrthographicCamera,
        PCFShadowMap: PCFShadowMap,
        PCFSoftShadowMap: PCFSoftShadowMap,
        PMREMGenerator: PMREMGenerator,
        Path: Path,
        PerspectiveCamera: PerspectiveCamera,
        Plane: Plane,
        PlaneBufferGeometry: PlaneBufferGeometry,
        PlaneGeometry: PlaneGeometry,
        PlaneHelper: PlaneHelper,
        PointLight: PointLight,
        PointLightHelper: PointLightHelper,
        Points: Points,
        PointsMaterial: PointsMaterial,
        PolarGridHelper: PolarGridHelper,
        PolyhedronBufferGeometry: PolyhedronBufferGeometry,
        PolyhedronGeometry: PolyhedronGeometry,
        PositionalAudio: PositionalAudio,
        PropertyBinding: PropertyBinding,
        PropertyMixer: PropertyMixer,
        QuadraticBezierCurve: QuadraticBezierCurve,
        QuadraticBezierCurve3: QuadraticBezierCurve3,
        Quaternion: Quaternion,
        QuaternionKeyframeTrack: QuaternionKeyframeTrack,
        QuaternionLinearInterpolant: QuaternionLinearInterpolant,
        REVISION: REVISION,
        RGBADepthPacking: RGBADepthPacking,
        RGBAFormat: RGBAFormat,
        RGBAIntegerFormat: RGBAIntegerFormat,
        RGBA_ASTC_10x10_Format: RGBA_ASTC_10x10_Format,
        RGBA_ASTC_10x5_Format: RGBA_ASTC_10x5_Format,
        RGBA_ASTC_10x6_Format: RGBA_ASTC_10x6_Format,
        RGBA_ASTC_10x8_Format: RGBA_ASTC_10x8_Format,
        RGBA_ASTC_12x10_Format: RGBA_ASTC_12x10_Format,
        RGBA_ASTC_12x12_Format: RGBA_ASTC_12x12_Format,
        RGBA_ASTC_4x4_Format: RGBA_ASTC_4x4_Format,
        RGBA_ASTC_5x4_Format: RGBA_ASTC_5x4_Format,
        RGBA_ASTC_5x5_Format: RGBA_ASTC_5x5_Format,
        RGBA_ASTC_6x5_Format: RGBA_ASTC_6x5_Format,
        RGBA_ASTC_6x6_Format: RGBA_ASTC_6x6_Format,
        RGBA_ASTC_8x5_Format: RGBA_ASTC_8x5_Format,
        RGBA_ASTC_8x6_Format: RGBA_ASTC_8x6_Format,
        RGBA_ASTC_8x8_Format: RGBA_ASTC_8x8_Format,
        RGBA_BPTC_Format: RGBA_BPTC_Format,
        RGBA_ETC2_EAC_Format: RGBA_ETC2_EAC_Format,
        RGBA_PVRTC_2BPPV1_Format: RGBA_PVRTC_2BPPV1_Format,
        RGBA_PVRTC_4BPPV1_Format: RGBA_PVRTC_4BPPV1_Format,
        RGBA_S3TC_DXT1_Format: RGBA_S3TC_DXT1_Format,
        RGBA_S3TC_DXT3_Format: RGBA_S3TC_DXT3_Format,
        RGBA_S3TC_DXT5_Format: RGBA_S3TC_DXT5_Format,
        RGBFormat: RGBFormat,
        RGB_ETC1_Format: RGB_ETC1_Format,
        RGB_ETC2_Format: RGB_ETC2_Format,
        RGB_PVRTC_2BPPV1_Format: RGB_PVRTC_2BPPV1_Format,
        RGB_PVRTC_4BPPV1_Format: RGB_PVRTC_4BPPV1_Format,
        RGB_S3TC_DXT1_Format: RGB_S3TC_DXT1_Format,
        RGFormat: RGFormat,
        RGIntegerFormat: RGIntegerFormat,
        RawShaderMaterial: RawShaderMaterial,
        Ray: Ray,
        Raycaster: Raycaster,
        RectAreaLight: RectAreaLight,
        RedFormat: RedFormat,
        RedIntegerFormat: RedIntegerFormat,
        ReinhardToneMapping: ReinhardToneMapping,
        RepeatWrapping: RepeatWrapping,
        ReplaceStencilOp: ReplaceStencilOp,
        ReverseSubtractEquation: ReverseSubtractEquation,
        RingBufferGeometry: RingBufferGeometry,
        RingGeometry: RingGeometry,
        SRGBColorSpace: SRGBColorSpace,
        Scene: Scene,
        ShaderChunk: ShaderChunk,
        ShaderLib: ShaderLib,
        ShaderMaterial: ShaderMaterial,
        ShadowMaterial: ShadowMaterial,
        Shape: Shape,
        ShapeBufferGeometry: ShapeBufferGeometry,
        ShapeGeometry: ShapeGeometry,
        ShapePath: ShapePath,
        ShapeUtils: ShapeUtils,
        ShortType: ShortType,
        Skeleton: Skeleton,
        SkeletonHelper: SkeletonHelper,
        SkinnedMesh: SkinnedMesh,
        Source: Source,
        Sphere: Sphere,
        SphereBufferGeometry: SphereBufferGeometry,
        SphereGeometry: SphereGeometry,
        Spherical: Spherical,
        SphericalHarmonics3: SphericalHarmonics3,
        SplineCurve: SplineCurve,
        SpotLight: SpotLight,
        SpotLightHelper: SpotLightHelper,
        Sprite: Sprite,
        SpriteMaterial: SpriteMaterial,
        SrcAlphaFactor: SrcAlphaFactor,
        SrcAlphaSaturateFactor: SrcAlphaSaturateFactor,
        SrcColorFactor: SrcColorFactor,
        StaticCopyUsage: StaticCopyUsage,
        StaticDrawUsage: StaticDrawUsage,
        StaticReadUsage: StaticReadUsage,
        StereoCamera: StereoCamera,
        StreamCopyUsage: StreamCopyUsage,
        StreamDrawUsage: StreamDrawUsage,
        StreamReadUsage: StreamReadUsage,
        StringKeyframeTrack: StringKeyframeTrack,
        SubtractEquation: SubtractEquation,
        SubtractiveBlending: SubtractiveBlending,
        TOUCH: TOUCH,
        TangentSpaceNormalMap: TangentSpaceNormalMap,
        TetrahedronBufferGeometry: TetrahedronBufferGeometry,
        TetrahedronGeometry: TetrahedronGeometry,
        Texture: Texture,
        TextureLoader: TextureLoader,
        TorusBufferGeometry: TorusBufferGeometry,
        TorusGeometry: TorusGeometry,
        TorusKnotBufferGeometry: TorusKnotBufferGeometry,
        TorusKnotGeometry: TorusKnotGeometry,
        Triangle: Triangle,
        TriangleFanDrawMode: TriangleFanDrawMode,
        TriangleStripDrawMode: TriangleStripDrawMode,
        TrianglesDrawMode: TrianglesDrawMode,
        TubeBufferGeometry: TubeBufferGeometry,
        TubeGeometry: TubeGeometry,
        UVMapping: UVMapping,
        Uint16BufferAttribute: Uint16BufferAttribute,
        Uint32BufferAttribute: Uint32BufferAttribute,
        Uint8BufferAttribute: Uint8BufferAttribute,
        Uint8ClampedBufferAttribute: Uint8ClampedBufferAttribute,
        Uniform: Uniform,
        UniformsGroup: UniformsGroup,
        UniformsLib: UniformsLib,
        UniformsUtils: UniformsUtils,
        UnsignedByteType: UnsignedByteType,
        UnsignedInt248Type: UnsignedInt248Type,
        UnsignedIntType: UnsignedIntType,
        UnsignedShort4444Type: UnsignedShort4444Type,
        UnsignedShort5551Type: UnsignedShort5551Type,
        UnsignedShortType: UnsignedShortType,
        VSMShadowMap: VSMShadowMap,
        Vector2: Vector2,
        Vector3: Vector3,
        Vector4: Vector4,
        VectorKeyframeTrack: VectorKeyframeTrack,
        VideoTexture: VideoTexture,
        WebGL1Renderer: WebGL1Renderer,
        WebGL3DRenderTarget: WebGL3DRenderTarget,
        WebGLArrayRenderTarget: WebGLArrayRenderTarget,
        WebGLCubeRenderTarget: WebGLCubeRenderTarget,
        WebGLMultipleRenderTargets: WebGLMultipleRenderTargets,
        WebGLMultisampleRenderTarget: WebGLMultisampleRenderTarget,
        WebGLRenderTarget: WebGLRenderTarget,
        WebGLRenderer: WebGLRenderer,
        WebGLUtils: WebGLUtils,
        WireframeGeometry: WireframeGeometry,
        WrapAroundEnding: WrapAroundEnding,
        ZeroCurvatureEnding: ZeroCurvatureEnding,
        ZeroFactor: ZeroFactor,
        ZeroSlopeEnding: ZeroSlopeEnding,
        ZeroStencilOp: ZeroStencilOp,
        _SRGBAFormat: _SRGBAFormat,
        sRGBEncoding: sRGBEncoding
    });

    /* src\MovingDotSpaceModalBrainstorm.svelte generated by Svelte v3.59.2 */
    const file$e = "src\\MovingDotSpaceModalBrainstorm.svelte";

    function create_fragment$e(ctx) {
    	let div;

    	const block = {
    		c: function create() {
    			div = element("div");
    			attr_dev(div, "class", "svelte-1kuj9kb");
    			add_location(div, file$e, 95, 0, 3254);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			/*div_binding*/ ctx[1](div);
    		},
    		p: noop,
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			/*div_binding*/ ctx[1](null);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$e.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$e($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotSpaceModalBrainstorm', slots, []);
    	let container;
    	let scene, camera, renderer, geometry, material, mesh;

    	onMount(() => {
    		init();
    		animate();
    	});

    	function init() {
    		// Create scene
    		scene = new Scene();

    		// Create camera
    		camera = new PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);

    		camera.position.z = 5;

    		// Create renderer
    		renderer = new WebGLRenderer({ antialias: true });

    		renderer.setSize(window.innerWidth, window.innerHeight);
    		container.appendChild(renderer.domElement);

    		// Create geometry
    		geometry = new TorusKnotGeometry(1, 0.3, 100, 20);

    		// Create material
    		material = new MeshBasicMaterial({ color: 0x00ff00, wireframe: true });

    		// Create mesh
    		mesh = new Mesh(geometry, material);

    		scene.add(mesh);
    	}

    	function animate() {
    		requestAnimationFrame(animate);
    		mesh.rotation.x += 0.01;
    		mesh.rotation.y += 0.02;
    		renderer.render(scene, camera);
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<MovingDotSpaceModalBrainstorm> was created with unknown prop '${key}'`);
    	});

    	function div_binding($$value) {
    		binding_callbacks[$$value ? 'unshift' : 'push'](() => {
    			container = $$value;
    			$$invalidate(0, container);
    		});
    	}

    	$$self.$capture_state = () => ({
    		onMount,
    		THREE,
    		container,
    		scene,
    		camera,
    		renderer,
    		geometry,
    		material,
    		mesh,
    		init,
    		animate
    	});

    	$$self.$inject_state = $$props => {
    		if ('container' in $$props) $$invalidate(0, container = $$props.container);
    		if ('scene' in $$props) scene = $$props.scene;
    		if ('camera' in $$props) camera = $$props.camera;
    		if ('renderer' in $$props) renderer = $$props.renderer;
    		if ('geometry' in $$props) geometry = $$props.geometry;
    		if ('material' in $$props) material = $$props.material;
    		if ('mesh' in $$props) mesh = $$props.mesh;
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [container, div_binding];
    }

    class MovingDotSpaceModalBrainstorm extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$e, create_fragment$e, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotSpaceModalBrainstorm",
    			options,
    			id: create_fragment$e.name
    		});
    	}
    }

    /* src\MovingDotSpaceGameFind.svelte generated by Svelte v3.59.2 */

    const file$d = "src\\MovingDotSpaceGameFind.svelte";

    function get_each_context$a(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[9] = list[i];
    	child_ctx[11] = i;
    	return child_ctx;
    }

    function get_each_context_1$4(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[12] = list[i];
    	child_ctx[14] = i;
    	return child_ctx;
    }

    // (63:4) {:else}
    function create_else_block$1(ctx) {
    	let p;

    	const block = {
    		c: function create() {
    			p = element("p");
    			p.textContent = "Game over. Try again!";
    			add_location(p, file$d, 63, 6, 1832);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, p, anchor);
    		},
    		p: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(p);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_else_block$1.name,
    		type: "else",
    		source: "(63:4) {:else}",
    		ctx
    	});

    	return block;
    }

    // (61:34) 
    function create_if_block_1$3(ctx) {
    	let p;

    	const block = {
    		c: function create() {
    			p = element("p");
    			p.textContent = "You won! 🎉";
    			add_location(p, file$d, 61, 6, 1793);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, p, anchor);
    		},
    		p: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(p);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_1$3.name,
    		type: "if",
    		source: "(61:34) ",
    		ctx
    	});

    	return block;
    }

    // (59:4) {#if gameState === 'playing'}
    function create_if_block$6(ctx) {
    	let p;
    	let t0;
    	let t1;

    	const block = {
    		c: function create() {
    			p = element("p");
    			t0 = text("Presses Remaining: ");
    			t1 = text(/*pressesRemaining*/ ctx[0]);
    			add_location(p, file$d, 59, 6, 1705);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, p, anchor);
    			append_dev(p, t0);
    			append_dev(p, t1);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*pressesRemaining*/ 1) set_data_dev(t1, /*pressesRemaining*/ ctx[0]);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(p);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$6.name,
    		type: "if",
    		source: "(59:4) {#if gameState === 'playing'}",
    		ctx
    	});

    	return block;
    }

    // (71:6) {#each row as cell, colIndex}
    function create_each_block_1$4(ctx) {
    	let button;

    	let t0_value = (/*cell*/ ctx[12].pressed
    	? /*rowIndex*/ ctx[11] === /*correctItem*/ ctx[1].row && /*colIndex*/ ctx[14] === /*correctItem*/ ctx[1].col
    		? '✅'
    		: '❌'
    	: '') + "";

    	let t0;
    	let t1;
    	let button_disabled_value;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[6](/*rowIndex*/ ctx[11], /*colIndex*/ ctx[14]);
    	}

    	const block = {
    		c: function create() {
    			button = element("button");
    			t0 = text(t0_value);
    			t1 = space();
    			button.disabled = button_disabled_value = /*gameState*/ ctx[2] !== 'playing';
    			attr_dev(button, "class", "svelte-p3ubim");
    			toggle_class(button, "pressed", /*cell*/ ctx[12].pressed);
    			add_location(button, file$d, 71, 8, 2045);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t0);
    			append_dev(button, t1);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;

    			if (dirty & /*grid, correctItem*/ 10 && t0_value !== (t0_value = (/*cell*/ ctx[12].pressed
    			? /*rowIndex*/ ctx[11] === /*correctItem*/ ctx[1].row && /*colIndex*/ ctx[14] === /*correctItem*/ ctx[1].col
    				? '✅'
    				: '❌'
    			: '') + "")) set_data_dev(t0, t0_value);

    			if (dirty & /*gameState*/ 4 && button_disabled_value !== (button_disabled_value = /*gameState*/ ctx[2] !== 'playing')) {
    				prop_dev(button, "disabled", button_disabled_value);
    			}

    			if (dirty & /*grid*/ 8) {
    				toggle_class(button, "pressed", /*cell*/ ctx[12].pressed);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$4.name,
    		type: "each",
    		source: "(71:6) {#each row as cell, colIndex}",
    		ctx
    	});

    	return block;
    }

    // (70:4) {#each grid as row, rowIndex}
    function create_each_block$a(ctx) {
    	let each_1_anchor;
    	let each_value_1 = /*row*/ ctx[9];
    	validate_each_argument(each_value_1);
    	let each_blocks = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks[i] = create_each_block_1$4(get_each_context_1$4(ctx, each_value_1, i));
    	}

    	const block = {
    		c: function create() {
    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			each_1_anchor = empty();
    		},
    		m: function mount(target, anchor) {
    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(target, anchor);
    				}
    			}

    			insert_dev(target, each_1_anchor, anchor);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*gameState, grid, pressButton, correctItem*/ 30) {
    				each_value_1 = /*row*/ ctx[9];
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$4(ctx, each_value_1, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block_1$4(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(each_1_anchor.parentNode, each_1_anchor);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value_1.length;
    			}
    		},
    		d: function destroy(detaching) {
    			destroy_each(each_blocks, detaching);
    			if (detaching) detach_dev(each_1_anchor);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$a.name,
    		type: "each",
    		source: "(70:4) {#each grid as row, rowIndex}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$d(ctx) {
    	let div0;
    	let t0;
    	let button;
    	let t2;
    	let div1;
    	let mounted;
    	let dispose;

    	function select_block_type(ctx, dirty) {
    		if (/*gameState*/ ctx[2] === 'playing') return create_if_block$6;
    		if (/*gameState*/ ctx[2] === 'won') return create_if_block_1$3;
    		return create_else_block$1;
    	}

    	let current_block_type = select_block_type(ctx);
    	let if_block = current_block_type(ctx);
    	let each_value = /*grid*/ ctx[3];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$a(get_each_context$a(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			div0 = element("div");
    			if_block.c();
    			t0 = space();
    			button = element("button");
    			button.textContent = "Restart Game";
    			t2 = space();
    			div1 = element("div");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			attr_dev(button, "class", "svelte-p3ubim");
    			add_location(button, file$d, 65, 4, 1877);
    			add_location(div0, file$d, 57, 2, 1657);
    			attr_dev(div1, "class", "grid svelte-p3ubim");
    			add_location(div1, file$d, 68, 2, 1945);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div0, anchor);
    			if_block.m(div0, null);
    			append_dev(div0, t0);
    			append_dev(div0, button);
    			insert_dev(target, t2, anchor);
    			insert_dev(target, div1, anchor);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div1, null);
    				}
    			}

    			if (!mounted) {
    				dispose = listen_dev(button, "click", /*resetGame*/ ctx[5], false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (current_block_type === (current_block_type = select_block_type(ctx)) && if_block) {
    				if_block.p(ctx, dirty);
    			} else {
    				if_block.d(1);
    				if_block = current_block_type(ctx);

    				if (if_block) {
    					if_block.c();
    					if_block.m(div0, t0);
    				}
    			}

    			if (dirty & /*grid, gameState, pressButton, correctItem*/ 30) {
    				each_value = /*grid*/ ctx[3];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$a(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$a(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(div1, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div0);
    			if_block.d();
    			if (detaching) detach_dev(t2);
    			if (detaching) detach_dev(div1);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$d.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$d($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotSpaceGameFind', slots, []);
    	let gridSize = 10;
    	let maxPresses = 20; // Maximum number of presses allowed
    	let pressesRemaining = maxPresses;

    	let correctItem = {
    		row: Math.floor(Math.random() * gridSize),
    		col: Math.floor(Math.random() * gridSize)
    	};

    	let gameState = "playing"; // Can be "playing", "won", or "lost"

    	// Generate initial grid state
    	let grid = Array(gridSize).fill().map(() => Array(gridSize).fill().map(() => ({ pressed: false })));

    	function pressButton(row, col) {
    		if (grid[row][col].pressed || pressesRemaining === 0 || gameState !== "playing") {
    			return; // Ignore if already pressed or no presses left or game not in playing state
    		}

    		$$invalidate(3, grid[row][col].pressed = true, grid);
    		$$invalidate(0, pressesRemaining -= 1);

    		// Check for win condition
    		if (row === correctItem.row && col === correctItem.col) {
    			$$invalidate(2, gameState = "won");
    		} else if (pressesRemaining === 0) {
    			$$invalidate(2, gameState = "lost");
    		}
    	}

    	function resetGame() {
    		$$invalidate(0, pressesRemaining = maxPresses);

    		$$invalidate(1, correctItem = {
    			row: Math.floor(Math.random() * gridSize),
    			col: Math.floor(Math.random() * gridSize)
    		});

    		$$invalidate(3, grid = Array(gridSize).fill().map(() => Array(gridSize).fill().map(() => ({ pressed: false }))));
    		$$invalidate(2, gameState = "playing");
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<MovingDotSpaceGameFind> was created with unknown prop '${key}'`);
    	});

    	const click_handler = (rowIndex, colIndex) => pressButton(rowIndex, colIndex);

    	$$self.$capture_state = () => ({
    		gridSize,
    		maxPresses,
    		pressesRemaining,
    		correctItem,
    		gameState,
    		grid,
    		pressButton,
    		resetGame
    	});

    	$$self.$inject_state = $$props => {
    		if ('gridSize' in $$props) gridSize = $$props.gridSize;
    		if ('maxPresses' in $$props) maxPresses = $$props.maxPresses;
    		if ('pressesRemaining' in $$props) $$invalidate(0, pressesRemaining = $$props.pressesRemaining);
    		if ('correctItem' in $$props) $$invalidate(1, correctItem = $$props.correctItem);
    		if ('gameState' in $$props) $$invalidate(2, gameState = $$props.gameState);
    		if ('grid' in $$props) $$invalidate(3, grid = $$props.grid);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		pressesRemaining,
    		correctItem,
    		gameState,
    		grid,
    		pressButton,
    		resetGame,
    		click_handler
    	];
    }

    class MovingDotSpaceGameFind extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$d, create_fragment$d, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotSpaceGameFind",
    			options,
    			id: create_fragment$d.name
    		});
    	}
    }

    /* src\MovingDotSpaceGameOrder.svelte generated by Svelte v3.59.2 */

    const file$c = "src\\MovingDotSpaceGameOrder.svelte";

    function get_each_context$9(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[10] = list[i];
    	child_ctx[12] = i;
    	return child_ctx;
    }

    // (72:39) 
    function create_if_block_2(ctx) {
    	let p;

    	const block = {
    		c: function create() {
    			p = element("p");
    			p.textContent = "Incorrect order. Try again!";
    			add_location(p, file$c, 72, 4, 2206);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, p, anchor);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(p);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_2.name,
    		type: "if",
    		source: "(72:39) ",
    		ctx
    	});

    	return block;
    }

    // (70:2) {#if gameStatus === "correct"}
    function create_if_block_1$2(ctx) {
    	let p;

    	const block = {
    		c: function create() {
    			p = element("p");
    			p.textContent = "You guessed the correct order! 🎉";
    			add_location(p, file$c, 70, 4, 2119);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, p, anchor);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(p);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_1$2.name,
    		type: "if",
    		source: "(70:2) {#if gameStatus === \\\"correct\\\"}",
    		ctx
    	});

    	return block;
    }

    // (79:4) {#each Array(gridSize) as _, i}
    function create_each_block$9(ctx) {
    	let button;
    	let t0_value = /*i*/ ctx[12] + 1 + "";
    	let t0;
    	let t1;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[8](/*i*/ ctx[12]);
    	}

    	const block = {
    		c: function create() {
    			button = element("button");
    			t0 = text(t0_value);
    			t1 = space();
    			attr_dev(button, "data-number", /*i*/ ctx[12] + 1);
    			attr_dev(button, "class", "svelte-7k1yf9");
    			toggle_class(button, "pressed", /*userOrder*/ ctx[0].includes(/*i*/ ctx[12] + 1));
    			add_location(button, file$c, 79, 6, 2378);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t0);
    			append_dev(button, t1);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;

    			if (dirty & /*userOrder*/ 1) {
    				toggle_class(button, "pressed", /*userOrder*/ ctx[0].includes(/*i*/ ctx[12] + 1));
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$9.name,
    		type: "each",
    		source: "(79:4) {#each Array(gridSize) as _, i}",
    		ctx
    	});

    	return block;
    }

    // (86:2) {#if !checkOnEveryPress && gameStatus === ""}
    function create_if_block$5(ctx) {
    	let button;
    	let t;
    	let button_disabled_value;
    	let mounted;
    	let dispose;

    	const block = {
    		c: function create() {
    			button = element("button");
    			t = text("Check Order");
    			button.disabled = button_disabled_value = /*userOrder*/ ctx[0].length !== /*gridSize*/ ctx[3];
    			attr_dev(button, "class", "svelte-7k1yf9");
    			add_location(button, file$c, 86, 4, 2600);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", /*checkOrder*/ ctx[5], false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*userOrder*/ 1 && button_disabled_value !== (button_disabled_value = /*userOrder*/ ctx[0].length !== /*gridSize*/ ctx[3])) {
    				prop_dev(button, "disabled", button_disabled_value);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$5.name,
    		type: "if",
    		source: "(86:2) {#if !checkOnEveryPress && gameStatus === \\\"\\\"}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$c(ctx) {
    	let div0;
    	let input;
    	let t0;
    	let label;
    	let t2;
    	let t3;
    	let button;
    	let t5;
    	let div1;
    	let t6;
    	let if_block1_anchor;
    	let mounted;
    	let dispose;

    	function select_block_type(ctx, dirty) {
    		if (/*gameStatus*/ ctx[2] === "correct") return create_if_block_1$2;
    		if (/*gameStatus*/ ctx[2] === "incorrect") return create_if_block_2;
    	}

    	let current_block_type = select_block_type(ctx);
    	let if_block0 = current_block_type && current_block_type(ctx);
    	let each_value = Array(/*gridSize*/ ctx[3]);
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$9(get_each_context$9(ctx, each_value, i));
    	}

    	let if_block1 = !/*checkOnEveryPress*/ ctx[1] && /*gameStatus*/ ctx[2] === "" && create_if_block$5(ctx);

    	const block = {
    		c: function create() {
    			div0 = element("div");
    			input = element("input");
    			t0 = space();
    			label = element("label");
    			label.textContent = "Check order on every press";
    			t2 = space();
    			if (if_block0) if_block0.c();
    			t3 = space();
    			button = element("button");
    			button.textContent = "Restart Game";
    			t5 = space();
    			div1 = element("div");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t6 = space();
    			if (if_block1) if_block1.c();
    			if_block1_anchor = empty();
    			attr_dev(input, "type", "checkbox");
    			add_location(input, file$c, 65, 4, 1962);
    			add_location(label, file$c, 66, 4, 2024);
    			attr_dev(div0, "class", "controls svelte-7k1yf9");
    			add_location(div0, file$c, 64, 2, 1934);
    			attr_dev(button, "class", "svelte-7k1yf9");
    			add_location(button, file$c, 75, 2, 2257);
    			attr_dev(div1, "class", "grid svelte-7k1yf9");
    			add_location(div1, file$c, 77, 2, 2315);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div0, anchor);
    			append_dev(div0, input);
    			input.checked = /*checkOnEveryPress*/ ctx[1];
    			append_dev(div0, t0);
    			append_dev(div0, label);
    			insert_dev(target, t2, anchor);
    			if (if_block0) if_block0.m(target, anchor);
    			insert_dev(target, t3, anchor);
    			insert_dev(target, button, anchor);
    			insert_dev(target, t5, anchor);
    			insert_dev(target, div1, anchor);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div1, null);
    				}
    			}

    			insert_dev(target, t6, anchor);
    			if (if_block1) if_block1.m(target, anchor);
    			insert_dev(target, if_block1_anchor, anchor);

    			if (!mounted) {
    				dispose = [
    					listen_dev(input, "change", /*input_change_handler*/ ctx[7]),
    					listen_dev(button, "click", /*resetGame*/ ctx[6], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*checkOnEveryPress*/ 2) {
    				input.checked = /*checkOnEveryPress*/ ctx[1];
    			}

    			if (current_block_type !== (current_block_type = select_block_type(ctx))) {
    				if (if_block0) if_block0.d(1);
    				if_block0 = current_block_type && current_block_type(ctx);

    				if (if_block0) {
    					if_block0.c();
    					if_block0.m(t3.parentNode, t3);
    				}
    			}

    			if (dirty & /*userOrder, handlePress*/ 17) {
    				each_value = Array(/*gridSize*/ ctx[3]);
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$9(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$9(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(div1, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}

    			if (!/*checkOnEveryPress*/ ctx[1] && /*gameStatus*/ ctx[2] === "") {
    				if (if_block1) {
    					if_block1.p(ctx, dirty);
    				} else {
    					if_block1 = create_if_block$5(ctx);
    					if_block1.c();
    					if_block1.m(if_block1_anchor.parentNode, if_block1_anchor);
    				}
    			} else if (if_block1) {
    				if_block1.d(1);
    				if_block1 = null;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div0);
    			if (detaching) detach_dev(t2);

    			if (if_block0) {
    				if_block0.d(detaching);
    			}

    			if (detaching) detach_dev(t3);
    			if (detaching) detach_dev(button);
    			if (detaching) detach_dev(t5);
    			if (detaching) detach_dev(div1);
    			destroy_each(each_blocks, detaching);
    			if (detaching) detach_dev(t6);
    			if (if_block1) if_block1.d(detaching);
    			if (detaching) detach_dev(if_block1_anchor);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$c.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$c($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotSpaceGameOrder', slots, []);
    	let gridSize = 4; // Grid size for simplicity
    	let correctOrder = Array.from({ length: gridSize }, (_, i) => i + 1).sort(() => 0.5 - Math.random()); // Randomized correct order
    	let userOrder = []; // User's order
    	let checkOnEveryPress = false; // Start with manual check
    	let gameStatus = ""; // "", "correct", or "incorrect"

    	function handlePress(number) {
    		if (userOrder.includes(number) || gameStatus) return; // Ignore if already pressed or game has ended
    		userOrder.push(number);

    		if (!checkOnEveryPress) {
    			// Add the "pressed" class to the pressed button
    			const pressedButton = document.querySelector(`button[data-number="${number}"]`);

    			pressedButton.classList.add("pressed");
    		} else {
    			checkOrder();
    		}
    	}

    	function checkOrder() {
    		for (let i = 0; i < userOrder.length; i++) {
    			if (userOrder[i] !== correctOrder[i]) {
    				$$invalidate(2, gameStatus = "incorrect");
    				return;
    			}
    		}

    		if (userOrder.length === correctOrder.length) {
    			$$invalidate(2, gameStatus = "correct");
    		}
    	}

    	function resetGame() {
    		$$invalidate(0, userOrder = []);
    		$$invalidate(2, gameStatus = "");
    		correctOrder.sort(() => 0.5 - Math.random()); // Shuffle for a new game

    		// Remove the "pressed" class from all buttons
    		const pressedButtons = document.querySelectorAll(".pressed");

    		pressedButtons.forEach(button => button.classList.remove("pressed"));
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<MovingDotSpaceGameOrder> was created with unknown prop '${key}'`);
    	});

    	function input_change_handler() {
    		checkOnEveryPress = this.checked;
    		$$invalidate(1, checkOnEveryPress);
    	}

    	const click_handler = i => handlePress(i + 1);

    	$$self.$capture_state = () => ({
    		gridSize,
    		correctOrder,
    		userOrder,
    		checkOnEveryPress,
    		gameStatus,
    		handlePress,
    		checkOrder,
    		resetGame
    	});

    	$$self.$inject_state = $$props => {
    		if ('gridSize' in $$props) $$invalidate(3, gridSize = $$props.gridSize);
    		if ('correctOrder' in $$props) correctOrder = $$props.correctOrder;
    		if ('userOrder' in $$props) $$invalidate(0, userOrder = $$props.userOrder);
    		if ('checkOnEveryPress' in $$props) $$invalidate(1, checkOnEveryPress = $$props.checkOnEveryPress);
    		if ('gameStatus' in $$props) $$invalidate(2, gameStatus = $$props.gameStatus);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		userOrder,
    		checkOnEveryPress,
    		gameStatus,
    		gridSize,
    		handlePress,
    		checkOrder,
    		resetGame,
    		input_change_handler,
    		click_handler
    	];
    }

    class MovingDotSpaceGameOrder extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$c, create_fragment$c, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotSpaceGameOrder",
    			options,
    			id: create_fragment$c.name
    		});
    	}
    }

    // themeConfig.js

    const themes = {
        'User Custom': {
            background: '/AutoGameBackgrounds/theme_background.png',
            inventory: [
                { type: "weapon", name: "Random waepon", description: "A powerful weapon." },
                // ... more space items
            ],
            skills: [
                { branch: "Skill Group 1", name: "Skill One", learned: false },
                // ... more space skills
            ],
            persistentTargets: [
                { name: "Background Target 1", x: 500, y: 500, collisionType: "alert", collisiontext: "First Test"},
            ],
            // ... and so on for targets
            story: [
                {
                    part: 0,
                    objectives: [
                        { id: 1, 
                        name: "Mission Details", 
                        complete: false,
                        progress: 0,
                        inventoryRequired: [],  },
                    ],
                    targets:  [
                    { name: "Target 1", x: 150, y: 150, collisionType: "alert", collisiontext: "First Test"},
                    ],
                },
                {
                    part: 1,
                    objectives: [
                        { id: 2, 
                        name: "Mission Details", 
                        complete: false,
                        progress: 0,
                        inventoryRequired: [],  },
                    ],
                    targets:  [
                    { name: "Target 2", x: 250, y: 250, collisionType: "alert", collisiontext: "First Test"},
                    ],
                },
            ],
            actions: {
                Buybook() {
                    // Logic to slay the dragon
                },
            },
            stateobjects: {
                // For location based story within a part
            },
        },
        'Default': {
            background: '/AutoGameBackgrounds/1stGameLoc123.png',
            inventory: [
                { type: "weapon", name: "Sword", description: "A sharp blade." },
                { type: "armor", name: "Shield", description: "Protects against attacks." },
                { type: "consumable", name: "Health Potion", description: "Restores health." },
                // ... more space items
            ],
            skills: [
                { branch: "Combat", name: "Basic Attack", learned: false },
                { branch: "Magic", name: "Fireball", learned: false },
                { branch: "Stealth", name: "Sneak", learned: false },
                // ... more space skills
            ],
            persistentTargets: [

            ],
            objectives: [
                { id: "Seperate", name: "Visit Mountain Peak", complete: false },
                { id: "Mission 1", name: "Intercept The Courier (Search the Locations)", complete: false },
                { id: "Mission 1", name: "Deliver the package to Market Stall", complete: false },
                // ... more space objectives
            ],
            // ... and so on for targets
            story: [
                {
                    part: 0,
                    objectives: [],
                    targets:  [
                    { name: "Target 1", x: 50, y: 50, collisionType: "alert", collisiontext: "First Test",
                        subtargets: [
                            { name: "Target 1 sub 1", x: 100, y: 75, collisionType: "alert", collisiontext: "First Test in Sub of First Test"} ,
                        ],
                    },
                    { name: "Target 2", x: 100, y: 100, collisionType: "", collisiontext: ""},
                    { name: "Target 2 - SM in this space is passing function from the config to the case function", x: 600, y: 600, collisionType: "smmodal", modalStates: {
                        default: {
                          title: "Entrance",
                          content: "You've reached the Entrance. What's your next step?",
                          items: [
                            { label: "Ask for guidance on next move", action: "guidance" },
                            { label: "Buy an Axe", action: "buyAxe" }
                          ],
                          consequences: [],
                        },
                        guidance: {
                          title: "Entrance - Guidance",
                          content: "The path to the north leads to the forest, and the path to the south leads to the village.",
                          items: [
                            { label: "Head North", action: "forest" },
                            { label: "Return", action: "default" }
                          ],
                          consequences: [],
                        },
                        forest: {
                          title: "Forest",
                          content: "Went to the forest",
                          items: [],
                          consequences: [ 'gainleaf' ],
                        }
                    }},
                    { name: "Entrance", x: 995, y: 660, collisionType: "modal", modalConfig: {
                        title: "Entrance",
                        content: "You've reached the Entrance. What's your next step?",
                        actions: [
                            {label: "Ask for guidance on next move", action: "askforDirections"},
                            {label: "Buy an Axe", action: "buyAxeAlert"},
                            // ... more actions if necessary
                        ]},
                    },
                    { name: "Market Stall", x: 200, y: 300, collisionType: "", collisiontext: "" },   // A market stall in the bustling market area.
                    { name: "Inn Entrance", x: 400, y: 450, collisionType: "", collisiontext: "" },   // The entrance to the inn for rest or information.
                    { name: "Town Hall", x: 600, y: 350, collisionType: "", collisiontext: "" },      // The entrance to the town hall for quests.
                    { name: "Fountain", x: 500, y: 500, collisionType: "", collisiontext: "" },       // A fountain in the town square as a meeting point.
                    { name: "Bridge", x: 1100, y: 700, collisionType: "", collisiontext: "" },        // A bridge in the mystical forest area.
                    { name: "Waterfall", x: 1300, y: 800, collisionType: "", collisiontext: "" },     // A waterfall that could hide secrets or treasures.
                    { name: "Mountain Peak", x: 1500, y: 100, collisionType: "", collisiontext: "" },
                    //{ name: "Mysterious Stranger", x: 350, y: 550, collisionType: "alert", collisiontext: "Beware the hidden caves in the north." },
                    //{ name: "Hidden Cave", x: 1200, y: 400, collisionType: "changeBackgroundColor", color: "#0B3D91" },
                    //{ name: "Ancient Tree", x: 300, y: 700, collisionType: "playSound", soundUrl: "tree_whisper.mp3" },
                    //{ name: "Forgotten Monument", x: 700, y: 800, collisionType: "startAnimation", elementId: "monument", animationClass: "glow" },
                    //{ name: "Wizard's Tower", x: 950, y: 150, collisionType: "rotateDot" },
                    //{ name: "Lakeside", x: 1400, y: 600, collisionType: "changeDotColor", color: "#00BFFF" },
                    //{ name: "Dragon's Lair", x: 1600, y: 200, collisionType: "incrementScore", incrementValue: 50 },
                    //{ name: "Abandoned Shipwreck", x: 1300, y: 500, collisionType: "shrinkDot" },
                    
                    { name: "Switch Test 1", x: 700, y: 700, collisionType: "storypartchange",  collisiontext: "First Test", newStage: 1},
                    ],
                },
                {
                    part: 1,
                    objectives: [],
                    targets:  [
                    { name: "Target 1", x: 50, y: 50, collisionType: "alert",  collisiontext: "First Test"},
                    { name: "Switch Back Test 1", x: 600, y: 400, collisionType: "storypartchange",  collisiontext: "First Test", newStage: 0},
                    ],
                },
            ],
            actions: {
                Buybook() {
                    // Logic to buy a book
                },
                buyAxeAlert() {
                    alert('bought book');
                },
                gainleaf() {
                    const newItem = {type: "random", name: "Leaf", description: "Random Leaf blown to you by the wind"};
                    addInventoryItem(newItem); 
                },
            },
        },
        'Space Odyssey': {
            background: '/AutoGameBackgrounds/SpaceOdysseyGameLoc.png',
            inventory: [
            { type: "weapon", name: "Laser Gun", description: "A powerful laser weapon." },
            // ... more space items
            ],
            skills: [
            { branch: "Piloting", name: "Astro Navigation", learned: false },
            // ... more space skills
            ],
            persistentTargets: [
                { name: "Space Station", x: 200, y: 300, collisionType: "", collisiontext: "" },
                //{ name: "Asteroid Field", x: 400, y: 450, collisionType: "", collisiontext: "" },
                { name: "Alien Planet", x: 940, y: 460, collisionType: "alert", collisiontext: "You have arrived at an alien planet. The inhabitants seem cautious but willing to negotiate. Find a way to establish peace." },
                
                { name: "Abandoned Spaceship", x: 460, y: 570, collisionType: "alert", collisiontext: "You have discovered an abandoned spaceship. It appears to be of ancient origin. Explore it for clues."},
                { name: "Colony", x: 640, y: 500, collisionType: "modal", modalConfig: {
                    title: "Human Colony",
                    content: "You have reached the human colony. Rest and prepare for your upcoming missions. Keep an eye out for any suspicious activities.",
                    actions: [
                        {label: "Request Mission Briefing", action: "requestBriefing"},
                        {label: "Purchase Upgrades", action: "purchaseUpgrades"},
                    // ... more actions if necessary
                    ]},
                },
                { name: "Meteor Field", x: 1100, y: 470, collisionType: "modal", modalConfig: {
                    title: "Dangerous Meteor Field",
                    content: "You have entered a dense meteor field. Navigate carefully to avoid damage to your ship.",
                    actions: [
                        {label: "Activate Shields", action: "activateShields"},
                        {label: "Scan for Rare Minerals", action: "scanMinerals"},
                    // ... more actions if necessary
                    ]},
                },
            // ... more persistent neutral targets
            ],
            story: [
                {
                    part: 0,
                    objectives: [
                        {
                        id: 1,
                        name: "Dock at the Space Station",
                        complete: false,
                        progress: 0,
                        inventoryRequired: [],
                        },
                        {
                        id: 2,
                        name: "Repair the Communication Array",
                        complete: false,
                        progress: 0,
                        inventoryRequired: ["Repair Kit"],
                        },
                    ],
                    targets: [
                        { name: "Space Station Docking Bay", x: 500, y: 400, collisionType: "alert", collisiontext: "Welcome to the space station. Please dock your ship and proceed to the communication room for your first mission." },
                        { name: "Communication Room", x: 800, y: 200, collisionType: "alert", collisiontext: "You enter the communication room and find the array in disrepair. Collect the necessary tools and fix it to establish contact with Earth." },
                        { name: "To Asteroid Field", x: 900, y: 100, collisionType: "storypartchange", transitionToPart: 1, collisiontext: "With the communication array repaired, you receive orders to investigate the nearby asteroid field for rare minerals." },
                    ],
                },
                {
                    part: 1,
                    objectives: [
                        {
                        id: 3,
                        name: "Collect Rare Asteroid Minerals",
                        complete: false,
                        progress: 0,
                        inventoryRequired: ["Mining Laser"],
                        },
                    ],
                    targets: [
                        { name: "Asteroid Field", x: 1200, y: 300, collisionType: "alert", collisiontext: "You arrive at the asteroid field. Scan the asteroids for the rare minerals and use your mining laser to extract them." },
                        { name: "Alien Encounter", x: 1250, y: 350, collisionType: "alert", collisiontext: "During the mining operation, you encounter an alien ship. They seem suspicious of your activities. Attempt to communicate and explain your peaceful intentions." },
                        { name: "To Alien Homeworld", x: 1100, y: 200, collisionType: "storypartchange", transitionToPart: 2, collisiontext: "After successful communication, the aliens invite you to their homeworld to discuss a potential peace treaty." },
                    ],
                },
                // ... more story parts
            ],
            actions: {
                activateShields() {
                // Logic to activate shields
                },
                scanMinerals() {
                // Logic to scan for rare minerals
                },
                requestBriefing() {
                // Logic to request mission briefing
                },
                purchaseUpgrades() {
                // Logic to purchase ship upgrades
                },
                // ... add more space-specific actions
            },
        },
        'Medieval Fantasy': {
              background: '/AutoGameBackgrounds/MedievalFantasyGameLoc.png',
              inventory: [
                { type: "weapon", name: "Longsword", description: "A sturdy steel blade." },
                // ... more medieval items
              ],
              skills: [
                // ... medieval skills
                { branch: "Piloting", name: "Astro Navigation", learned: false },
              ],
              persistentTargets: [
                { name: "Market Stall", x: 200, y: 300, collisionType: "", collisiontext: "" },
                { name: "Inn Entrance", x: 400, y: 450, collisionType: "", collisiontext: "" },
                { name: "Castle", x: 940, y: 460, collisionType: "alert", collisiontext: "The King of this land has summoned you to find and release his champion Daryl the Knight. Find him and free him" },  
                { name: "Hidden Space", x: 460, y: 570, collisionType: "alert", collisiontext: "Seems like a hidden space. Nobody is here currently."},
                    { name: "Home", x: 640, y: 500, collisionType: "modal", modalConfig: {
                        title: "Your Space",
                        content: "Rest and prepare for your tasks. Sometimes you hear noises in the area but this is the area with least interference",
                        actions: [
                            {label: "Ask for guidance on next move", action: "askforDirections"},
                            {label: "Buy an Axe", action: "buyAxeAlert"},
                            // ... more actions if necessary
                        ]},
                    },
                    { name: "Marketplace", x: 1100, y: 470, collisionType: "modal", modalConfig: {
                        title: "Place to find information and items",
                        content: "A bustling marketplace",
                        actions: [
                            {label: "Ask for guidance on next move", action: "askforDirections"},
                            {label: "Buy an Axe", action: "buyAxeAlert"},
                            {label: "Ask about the knight", action: "knightalert", message: "The armourer said he went to see the mini waterfall for some relaxtion"},
                            // ... more actions if necessary
                        ]},
                    },
                { name: "Mini Waterfall", x: 500, y: 640, collisionType: "alert", collisiontext: "A weird waterfall is upfront. It strangely gives a calming vibe. Nobody is here currently but there seems to be a trail of water leading to a closeby location .... "},
                // ... more persistent neutral targets
              ],
              story: [
                {
                    part: 0,
                    objectives: [
                      {
                        id: 1,
                        name: "Investigate the Disappearances",
                        complete: false,
                        progress: 0,
                        inventoryRequired: [],
                      },
                      {
                        id: 6,
                        name: "Rescue the Captured Knight",
                        complete: false,
                        progress: 0,
                        inventoryRequired: ["Longsword"],
                      },
                    ],
                    targets: [
                      { name: "Village Elder's House", x: 500, y: 400, collisionType: "alert", collisiontext: "Greetings, adventurer. Our village is in dire need of your help. People have been disappearing without a trace. Please, investigate and find out what's happening." },
                      { name: "Mysterious Forest", x: 800, y: 200, collisionType: "alert", collisiontext: "As you enter the forest, an eerie silence envelops you. The trees seem to whisper secrets, and the shadows dance with an unnatural rhythm." },
                      { name: "To Goblin Bandits", x: 900, y: 100, collisionType: "storypartchange", transitionToPart: 1, collisiontext: "You notice tracks leading deeper into the forest. They might lead to the missing villagers." },
                    ],
                },
                {
                    part: 1,
                    objectives: [
                      {
                        id: 2,
                        name: "Defeat the Goblin Bandits",
                        complete: false,
                        progress: 0,
                        inventoryRequired: ["Longsword"],
                      },
                    ],
                    targets: [
                      { name: "Bandit Camp", x: 1200, y: 300, collisionType: "alert", collisiontext: "You stumble upon a hidden bandit camp deep in the forest. The goblins spot you and charge, weapons drawn. Prepare for battle!" },
                      { name: "Prisoner Cages", x: 1250, y: 350, collisionType: "alert", collisiontext: "After defeating the goblins, you discover cages containing the missing villagers. You free them, and they share their gratitude and information about a mysterious sorcerer controlling the goblins." },
                      { name: "To Gather Information", x: 1100, y: 200, collisionType: "storypartchange", transitionToPart: 2, collisiontext: "With the villagers safe, you decide to gather more information about the sorcerer in the nearby town." },
                    ],
                  },
                  {
                    part: 2,
                    objectives: [
                      {
                        id: 3,
                        name: "Gather Information about the Sorcerer",
                        complete: false,
                        progress: 0,
                        inventoryRequired: [],
                      },
                    ],
                    targets: [
                      { name: "Tavern", x: 600, y: 500, collisionType: "alert", collisiontext: "You enter the tavern and overhear rumors about the sorcerer. Patrons speak of an ancient tower deep within the mountains where the sorcerer resides." },
                      { name: "Mage's Guild", x: 400, y: 600, collisionType: "alert", collisiontext: "Seeking more information, you visit the Mage's Guild. The guild master provides you with a map to the sorcerer's tower and warns you of the powerful magic protecting it." },
                      { name: "To Enchanted Maze", x: 300, y: 500, collisionType: "storypartchange", transitionToPart: 3, collisiontext: "With the information and map in hand, you set out to navigate the enchanted maze surrounding the sorcerer's tower." },
                    ],
                  },
                  {
                    part: 3,
                    objectives: [
                      {
                        id: 4,
                        name: "Navigate the Enchanted Maze",
                        complete: false,
                        progress: 0,
                        inventoryRequired: ["Mage's Map"],
                      },
                    ],
                    targets: [
                      { name: "Enchanted Maze Entrance", x: 1000, y: 800, collisionType: "dialog", collisiontext: "Following the map, you reach the entrance of an enchanted maze surrounding the sorcerer's tower. The air crackles with magical energy, and illusory walls shift before your eyes." },
                      { name: "Maze Center", x: 1000, y: 900, collisionType: "dialog", collisiontext: "After navigating the maze's twists and turns, you reach its center. A shimmering portal appears, leading directly to the sorcerer's tower." },
                      { name: "To Sorcerer's Chamber", x: 1000, y: 950, collisionType: "storypartchange", transitionToPart: 4, collisiontext: "With determination, you step through the portal, ready to confront the sorcerer and end his tyranny." },
                    ],
                  },
                  {
                    part: 4,
                    objectives: [
                      {
                        id: 5,
                        name: "Confront the Sorcerer",
                        complete: false,
                        progress: 0,
                        inventoryRequired: ["Enchanted Amulet"],
                      },
                    ],
                    targets: [
                      { name: "Sorcerer's Chamber", x: 1200, y: 1000, collisionType: "dialog", collisiontext: "You step through the portal and find yourself in the sorcerer's chamber. The sorcerer, a figure cloaked in dark robes, turns to face you. 'So, you've come to challenge me?' The final battle begins." },
                      { name: "Villagers' Celebration", x: 500, y: 400, collisionType: "dialog", collisiontext: "With the sorcerer defeated, you return to the village as a hero. The villagers gather to celebrate your victory and express their gratitude. Peace has been restored to the land." },
                    ],
                  },
              ],
              actions: {
                knightalert() {
                    alert("The armourer said he went to see the mini waterfall for some relaxtion");
                },
                buyAxeAlert() {
                    money.update(h => h - 10 > 0 ? h - 10 : 0); // Decreases money but never below 0
                    const newItem = {type: "weapon", name: "Axe", description: "A heavy, sharp axe."};
                    addInventoryItem(newItem);  
                },
                askforDirections() {
                    alert("Stranger: Go back to the fountain");
                },
                defendCastle() {
                    // Logic to defend the castle
                },
                slayDragon() {
                    // Logic to slay the dragon
                },
                // ... add more medieval-specific actions
              },
            },
            // ...
        'Cyberpunk': {
            background: '/AutoGameBackgrounds/CyberpunkGameLoc.png',
            inventory: [
                { type: "weapon", name: "Plasma Rifle", description: "A high-tech firearm with plasma rounds." },
                { type: "armor", name: "NanoSuit", description: "Protects with reactive nano technology." },
                { type: "consumable", name: "Stim Pack", description: "Enhances reflexes temporarily." },
                // ... more cyberpunk items
            ],
            // ... skills, objectives, and targets for cyberpunk theme
            skills: [
                { branch: "Hacking", name: "Cyber Intrusion", learned: false },
                { branch: "Combat", name: "Gun Kata", learned: false },
                { branch: "Stealth", name: "Cloaking", learned: false },
                // ... more space skills
            ],
            persistentTargets: [
            ],
            objectives: [ 
                { id: 1, name: "Hack the Mainframe", complete: false, progress: 0 },
                { id: 2, name: "Escape the Megacorp Security", complete: false, progress: 0 },
                { id: 3, name: "Infiltrate the Underground Hacker Group", complete: false, progress: 0 },
                { id: 4, name: "Negotiate a Truce with the Rival Gang", complete: false, progress: 0 },
                { id: 5, name: "Expose the Corrupt Politician", complete: false, progress: 0 },
                { id: 6, name: "Survive the Drone Assault", complete: false, progress: 0 },
                { id: 7, name: "Retrieve the Stolen Cybernetic Tech", complete: false, progress: 0 },
                { id: 8, name: "Win the Street Race in Neo-Tokyo", complete: false, progress: 0 },
                { id: 9, name: "Decrypt the Corporate Data Files", complete: false, progress: 0 },
                { id: 10, name: "Disarm the City-Wide Neural Bomb", complete: false, progress: 0 }
       
                // ... more space objectives
            ],
            story: [
                {
                    part: 0,
                    objectives: [],
                    targets:  [
                    { name: "Target 1", x: 50, y: 50, collisionType: "alert", collisiontext: "First Test"},
                    { name: "MegaCorp Server", x: 200, y: 50, collisionType: "alert", collisiontext: "First Test"},
                    { name: "City Police", x: 50, y: 250, collisionType: "alert", collisiontext: "First Test"},
                    { name: "Rival Gang", x: 550, y: 550, collisionType: "alert", collisiontext: "First Test"},
                    ],
                },
            ],
            actions: {
                Buybook() {
                    // Logic to slay the dragon
                },
            },
            
        },
        'Super Teacher': {
            background: '/AutoGameBackgrounds/SuperTeacherGameLoc.png',
            inventory: [
                { type: "book", name: "Math Advice", description: "Useful topical knowledge." },
                { type: "book", name: "Science Advice", description: "Useful topical knowledge." },
                { type: "book", name: "English Advice", description: "Useful topical knowledge." },
                { type: "book", name: "Economics Advice", description: "Useful topical knowledge." },
                // ... more space items
            ],
            skills: [
                { branch: "Multitask", name: "Movement Speed", learned: false },
                { branch: "Multitask", name: "Stop Window Interference for 1 min", learned: false },
                // ... more space skills
            ],
            persistentTargets: [
                { name: "Super Teacher Toolkit", x: 1000, y: 330, collisionType: "alert", collisiontext: "First Test"},
            ],
            objectives: [
                { id: "Mission 1", name: "Get the children to grade one 1 level", complete: false },
                { id: "Mission 2", name: "Get the children to grade one 2 level", complete: false },
                { id: "Mission 3", name: "Get the children to grade one 3 level", complete: false },
                // ... more space objectives
            ],
            // ... and so on for targets
            story: [
                {
                    part: 0,
                    objectives: [],
                    targets:  [
                    { name: "Random Noise Interference", x: 250, y: 110, collisionType: "alert", collisiontext: "First Test"},
                    { name: "Student 1", x: 310, y: 620, collisionType: "alert", collisiontext: "Attention fully restored. Needs reasoning help with english"},
                    { name: "Student 2", x: 660, y: 610, collisionType: "alert", collisiontext: "Attention fully restored. Doesnt speak english."},
                    { name: "Student 3", x: 1010, y: 620, collisionType: "alert", collisiontext: "Attention fully restored. Needs reasoning help with math"},
                    ],
                },
            ],
            actions: {
                BuybookforStudent() {
                    // Logic to slay the dragon
                },
            },
        },
        'Fantasy Adventure': {
            background: '/AutoGameBackgrounds/eldoria_background.png',
            inventory: [
                { type: "book", name: "Book of Eldrak", description: "An ancient tome containing half of a map." },
                { type: "amulet", name: "Peculiar Amulet", description: "A mysterious amulet bought in Meridia, reveals the unseen." },
                { type: "map", name: "Tattered Map", description: "A map hinting at significant locations within the Whispering Woods." },
                { type: "artifact", name: "Magical Acorn", description: "A gift from the forest spirit, promising future aid." },
                { type: "relic", name: "Shrine Relic", description: "A powerful artifact that enhances magical abilities, found in the Ruined Shrine." },
                { type: "record", name: "Echoing Cave Echoes", description: "A recording of whispers from the Echoing Caves, revealing secrets and hidden paths." },    
                // ... more fantasy items
            ],
            skills: [
                { branch: "Combat", name: "Sword Mastery", learned: false },
                { branch: "Magic", name: "Elemental Control", learned: false },
                { branch: "Lore", name: "Ancient Lore", learned: true, description: "Ability to decipher old texts and understand magical artifacts, gained at the Ruined Shrine." },
                { branch: "Stealth", name: "Eavesdropping", learned: true, description: "Skill in using acoustics to eavesdrop, developed in the Echoing Caves." },
                { branch: "Stealth", name: "Stealth Movement", learned: true, description: "Improved stealth for moving unseen, honed in the Echoing Caves." },
                { branch: "Diplomacy", name: "Negotiation", learned: true, description: "Enhanced negotiation skills, honed through interaction with the spirits of the Forgotten Graveyard." },
                { branch: "Magic", name: "Artifact Mastery", learned: true, description: "Mastery over various magical artifacts collected throughout the journey." },
                // ... more fantasy skills
            ],
            persistentTargets: [
                { name: "Lila's Home", x: 460, y: 600, collisionType: "alert", collisiontext: "A cozy cottage where Lila's quest for knowledge begins."},
                { name: "Eldoria Library", x: 360, y: 620, collisionType: "alert", collisiontext: "A treasure trove of books and maps. Lila spends hours here."},
            ],
            objectives: [
                { id: "FindBook", name: "Find the Book of Eldrak", complete: false },
                { id: "GetAmulet", name: "Acquire the Peculiar Amulet", complete: false },
                { id: "DiscoverArtefact", name: "Uncover the Artefact of Vorin", complete: false },
                { id: "LeaveEldoria", name: "Leave Eldoria's Outskirts", complete: true },
                { id: "VisitAncientOak", name: "Visit the Ancient Oak", complete: true },
                { id: "ExploreCrystalClearing", name: "Explore the Crystal Clearing", complete: true },
                { id: "DiscoverRuinedShrine", name: "Discover the Ruined Shrine", complete: true },
                { id: "NavigateEchoingCaves", name: "Navigate the Echoing Caves", complete: true },
                { id: "UncoverForgottenGraveyard", name: "Uncover the Secrets of the Forgotten Graveyard", complete: true },
                { id: "MasterArtifacts", name: "Master the Use of Collected Artifacts", complete: true },    
                // ... more fantasy objectives
            ],
            story: [
                {
                    part: 0,
                    objectives: [],
                    targets:  [
                        { name: "Eldoria Main Square", x: 410, y: 590, collisionType: "requirementsgated", collisiontext: "The heart of Eldoria, bustling with townsfolk and traders.", requirements: (8)},
                        { name: "Whispering Forest Edge", x: 830, y: 700, collisionType: "alert", collisiontext: "The mysterious forest that borders Eldoria. Lila feels drawn to its secrets."},
                        { name: "Serene Hills", x: 520, y: 490, collisionType: "alert", collisiontext: "Gentle hills that promise adventure beyond Eldoria. Lila often gazes here, dreaming of what lies beyond."},
                        { name: "Marketplace", x: 360, y: 560, collisionType: "alert", collisiontext: "A place of trade and gossip. Lila hears rumors of ancient artifacts here."},
                        { name: "Eldoria", x: 490, y: 420, collisionType: "storypartchange", collisiontext: "Your journey begins in the quaint town of Eldoria.", newStage: 1},
                        { name: "Old Sage's Hut", x: 600, y: 480, collisionType: "alert", collisiontext: "The home of Eldoria's oldest sage. Lila seeks his wisdom for her journey."},
                        { name: "Eldoria's Outskirts", x: 100, y: 10, collisionType: "stats", collisiontext: "Your courage grows as you step into the unknown."},
                        { name: "Tattered Map", x: 200, y: 20, collisionType: "inventory", collisiontext: "You've found a map that hints at significant locations in the Whispering Woods."},
                    ],
                },
                {
                    part: 1,
                    objectives: [],
                    targets:  [
                        { name: "Library of Eldrak", x: 620, y: 600, collisionType: "alert", collisiontext: "You discover the ancient Book of Eldrak."},
                        { name: "Meridia Market", x: 750, y: 590, collisionType: "alert", collisiontext: "A peculiar amulet catches your eye, promising to reveal the unseen."},
                        { name: "Suspicious Place", x: 810, y: 530, collisionType: "decision", collisiontext: "Do you know why you came here?"},
                        { name: "The Ancient Oak", x: 300, y: 130, collisionType: "modal", modalConfig: {
                            title: "The Ancient Oak Area",
                            content: "The Ancient Oak stands before you,",
                            actions: [
                                {label: "Talk to the Ancient Oak", action: "approachAncientOak"},
                                // ... more actions if necessary
                            ]} 
                        },
                        { name: "Magical Acorn", x: 400, y: 140, collisionType: "modal", modalConfig: {
                            title: "Magical Acorn Area",
                            content: "You are drawn to the acorn but as you near it a spirit appears",
                            actions: [
                                {label: "Talk to the spirit", action: "acquireMagicalAcorn"},
                                // ... more actions if necessary
                            ]} 
                        },
                    ],
                },
                {    
                    part: 2,
                    objectives: [],
                    targets:  [
                        { name: "Whispering Woods", x: 400, y: 300, collisionType: "modal", collisiontext: "The woods are dense and mysterious, hiding both allies and secrets."},
                        { name: "The Crystal Clearing", x: 500, y: 50, collisionType: "location", collisiontext: "Visions of potential futures flash before your eyes."},
                        { name: "The Ruined Shrine", x: 600, y: 60, collisionType: "location", collisiontext: "You discover a relic among the ruins, learning about a forgotten deity."},
                    ],
                }, 
                {
                    part: 3,
                    objectives: [],
                    targets:  [
                        { name: "Shadowed Caverns", x: 600, y: 400, collisionType: "fight", collisiontext: "The lair of the Keepers. A test of strength and wit awaits."},
                        { name: "Ancient Lore Skill", x: 370, y: 70, collisionType: "skills", collisiontext: "You've gained the skill to decipher old texts and understand magical artifacts."},
                        { name: "Shrine Relic", x: 480, y: 80, collisionType: "inventory", collisiontext: "This powerful artifact enhances your magical abilities."},
                    ],
                }, 
                {
                    part: 4,
                    objectives: [],
                    targets:  [
                    { name: "Return to Eldoria", x: 100, y: 500, collisionType: "end", collisiontext: "With the Artefact of Vorin, you return, forever changed by your journey."},
                    { name: "Echoing Cave Echoes", x: 90, y: 90, collisionType: "inventory", collisiontext: "You record the cave's whispers, a strategic item."},
                    { name: "Eavesdropping Skill", x: 100, y: 100, collisionType: "skills", collisiontext: "You learn to use the cave's acoustics to eavesdrop."},        
                    ],
                }, 
                {
                    part: 5,
                    objectives: [],
                    targets:  [
                    { name: "Stealth Skill", x: 110, y: 110, collisionType: "skills", collisiontext: "Navigating the caves, you improve your stealth."},
                    { name: "Negotiation Skill", x: 120, y: 120, collisionType: "skills", collisiontext: "You've honed your negotiation skills with the spirits."},
                    ],
                }, 
                {    
                    part: 6,
                    objectives: [],
                    targets:  [
                        { name: "Endurance Increase", x: 130, y: 130, collisionType: "stats", collisiontext: "The trials in the graveyard boost your endurance."},
                        { name: "Intelligence Increase", x: 140, y: 140, collisionType: "stats", collisiontext: "Piecing together clues, your intelligence grows."},
                    ],
                }, 
                {
                    part: 7,
                    objectives: [],
                    targets:  [
                        { name: "Artifact Mastery Skill", x: 150, y: 150, collisionType: "skills", collisiontext: "You master the use of the artifacts you've collected."},
                    ]
                },
                // ... additional story parts as needed
            ],
            actions: {
                Buybook() {
                    // Logic to slay the dragon
                },
            },
        }, 
        'Fantasy Adventure 2': {
            background: '/AutoGameBackgrounds/fantasy_background.png',
            inventory: [
                { type: "weapon", name: "Bow and Arrows", description: "A reliable ranged weapon." },
                { type: "tool", name: "Lockpicks", description: "Used for opening locked doors and chests." },
                { type: "consumable", name: "Healing Potion", description: "Restores health when consumed." },
                { type: "currency", name: "Gold Coins", description: "Used for purchasing items and services." },
            ],
            skills: [
                { branch: "Combat", name: "Archery", learned: false },
                { branch: "Stealth", name: "Lockpicking", learned: false },
                { branch: "Magic", name: "Alchemy", learned: false },
                { branch: "Social", name: "Persuasion", learned: false },
            ],
            persistentTargets: [
                { name: "Villager", x: 500, y: 500, collisionType: "alert", collisiontext: "Welcome to our village, traveler!" },
            ],
            story: [
                {
                    part: 0,
                    objectives: [
                        { id: 1, name: "Retrieve the Lost Amulet", complete: false, progress: 0, inventoryRequired: [], },
                        { id: 2, name: "Gather information about the cave", complete: false, progress: 0, inventoryRequired: [], },
                        { id: 3, name: "Obtain a map of the region", complete: false, progress: 0, inventoryRequired: [], },
                    ],
                    targets: [
                        {
                            name: "Villager 2",
                            x: 100,
                            y: 100,
                            collisionType: "modal",
                            modalConfig: {
                            title: "Conversation with Villager",
                            content: "Hello, traveler! How can I assist you today?",
                            actions: [
                                { label: "Ask for directions", action: "askDirections" },
                                { label: "Buy supplies", action: "buySupplies" },
                                { label: "Inquire about the Lost Amulet", action: "inquireAboutAmulet" },
                                { label: "Goodbye", action: "closeModal" },
                            ],
                            },
                        },
                        {
                            name: "Merchant",
                            x: 300,
                            y: 150,
                            collisionType: "modal",
                            modalConfig: {
                            title: "Merchant's Shop",
                            content: "Welcome to my humble shop! What can I interest you in?",
                            actions: [
                                { label: "Browse wares", action: "browseWares" },
                                { label: "Ask about the cave", action: "askAboutCave" },
                                { label: "Buy a map", action: "buyMap" },
                                { label: "Leave shop", action: "closeModal" },
                            ],
                            },
                        },
                        {
                            name: "Cave Entrance",
                            x: 200,
                            y: 200,
                            collisionType: "modal",
                            modalConfig: {
                            title: "Entering the Cave",
                            content: "You have reached the entrance of a dark and mysterious cave. Do you want to enter?",
                            actions: [
                                { label: "Enter the cave", action: "enterCave" },
                                { label: "Turn back", action: "closeModal" },
                            ],
                            },
                        },
                        {
                            name: "Mysterious Stranger",
                            x: 400,
                            y: 300,
                            collisionType: "modal",
                            modalConfig: {
                            title: "Encounter with a Mysterious Stranger",
                            content: "Greetings, adventurer. You seem to be searching for something. Perhaps I can be of assistance.",
                            actions: [
                                { label: "Ask about the Lost Amulet", action: "askAboutAmulet" },
                                { label: "Inquire about the cave", action: "inquireAboutCave" },
                                { label: "Ignore and walk away", action: "closeModal" },
                            ],
                            },
                        }
                    ],
                },
                {
                    part: 1,
                    objectives: [
                        { id: 11, name: "Rescue the Captured Princess", complete: false, progress: 0, inventoryRequired: [], },
                    ],
                    targets: [
                        { name: "Castle Gate", x: 400, y: 400, collisionType: "alert", collisiontext: "You've reached the castle gates!" },
                    ],
                },
                {
                    part: 2,
                    objectives: [
                    { id: 21, name: "Defeat the Evil Sorcerer", complete: false, progress: 0, inventoryRequired: [], },
                    ],
                    targets: [
                    { name: "Sorcerer's Tower", x: 600, y: 600, collisionType: "alert", collisiontext: "You've arrived at the sorcerer's tower!" },
                    ],
                },
                {
                    part: 3,
                    objectives: [
                    { id: 31, name: "Obtain the Rare Herb", complete: false, progress: 0, inventoryRequired: [], },
                    ],
                    targets: [
                    { name: "Herbalist's Hut", x: 800, y: 800, collisionType: "alert", collisiontext: "You've found the herbalist's hut!" },
                    ],
                },
            ],
            actions: {
                BuyItem(itemName) {
                    // Logic to buy an item from a vendor
                },
                inquireAboutAmulet() {
                    alert("Villager: I've heard tales of a powerful amulet hidden deep within the cave. Be cautious if you seek it.");
                },
                browseWares() {
                // Logic to browse the merchant's wares
                },
                askAboutCave() {
                    alert("Merchant: The cave to the east is known to be filled with dangerous creatures and traps. Proceed with caution.");
                },
                buyMap() {
                // Logic to buy a map from the merchant
                },
                askAboutAmulet() {
                    alert("Stranger: The Lost Amulet possesses great power. It is said to be guarded by ancient guardians within the cave.");
                },
                inquireAboutCave() {
                    alert("Stranger: The cave holds many secrets and challenges. Only the brave and resourceful can navigate its depths.");
                },
            },
        },
        'Constuction' : {
            background: '/AutoGameBackgrounds/ConstructionGameLoc.png',
            inventory: [
                {
                    type: "tool",
                    name: "Hammer",
                    description: "A sturdy hammer for various construction tasks."
                },
                {
                    type: "tool",
                    name: "Screwdriver",
                    description: "A versatile screwdriver for fastening and loosening screws."
                },
                {
                    type: "equipment",
                    name: "Safety Helmet",
                    description: "A hard hat to protect the worker's head from falling objects."
                },
                {
                    type: "equipment",
                    name: "Safety Vest",
                    description: "A high-visibility vest to ensure the worker's safety on site."
                },
                {
                    type: "consumable",
                    name: "Energy Bar",
                    description: "A snack to provide energy and sustenance during the workday."
                }
            ],
            skills: [
                {
                    branch: "Construction",
                    name: "Electrical Wiring",
                    learned: true
                },
                {
                    branch: "Construction",
                    name: "Concrete Pouring",
                    learned: true
                },
                {
                    branch: "Safety",
                    name: "Fall Protection",
                    learned: false
                },
                {
                    branch: "Safety",
                    name: "Hazard Recognition",
                    learned: true
                },
                {
                    branch: "Equipment Operation",
                    name: "Forklift Certification",
                    learned: false
                }
            ],
            persistentTargets: [
                {
                    name: "Blueprints",
                    x: 300,
                    y: 670,
                    collisionType: "alert",
                    collisiontext: "You consult the blueprints to ensure accurate construction."
                },
                {
                    name: "Water Cooler",
                    x: 490,
                    y: 650,
                    collisionType: "alert",
                    collisiontext: "You take a brief break to hydrate and chat with co-workers."
                }
            ],
            story: [
                    {
                    part: 0,
                    objectives: [
                        {
                        id: "Objective1_1",
                        name: "Attend Morning Briefing",
                        complete: false
                        },
                        {
                        id: "Objective1_2",
                        name: "Gather Required Tools",
                        complete: false
                        }
                    ],
                    targets: [
                        {
                        name: "Construction Site",
                        x: 470,
                        y: 310,
                        collisionType: "alert",
                        collisiontext: "You arrive at the construction site, ready to start the day."
                        },
                        {
                        name: "Foreman's Office",
                        x: 1270,
                        y: 690,
                        collisionType: "alert",
                        collisiontext: "You attend the morning briefing with the foreman and receive your tasks for the day."
                        },
                        {
                        name: "Tool Shed",
                        x: 430,
                        y: 540,
                        collisionType: "alert",
                        collisiontext: "You gather the necessary tools and equipment for your assigned tasks."
                        },
                        {
                        name: "Continue Construction",
                        x: 1100,
                        y: 520,
                        collisionType: "storypartchange",
                        transitionToPart: 1,
                        collisiontext: "Continue to specific tasks after arriving",
                        }
                    ]
                    },
                    {
                    part: 1,
                    objectives: [
                        {
                        id: "Objective2_1",
                        name: "Install Electrical Wiring",
                        complete: false
                        },
                        {
                        id: "Objective2_2",
                        name: "Assist with Concrete Pouring",
                        complete: false
                        },
                        {
                        id: "Objective2_3",
                        name: "Attend Safety Training",
                        complete: false
                        }
                    ],
                    targets: [
                        {
                        name: "Electrical Room",
                        x: 37,
                        y: 13,
                        collisionType: "alert",
                        collisiontext: "You begin installing electrical wiring according to the blueprints."
                        },
                        {
                        name: "Foundation Area",
                        x: 370,
                        y: 50,
                        collisionType: "alert",
                        collisiontext: "You assist the team in pouring concrete for the building's foundation."
                        },
                        {
                        name: "Safety Meeting Point",
                        x: 530,
                        y: 160,
                        collisionType: "alert",
                        collisiontext: "You attend a mandatory safety training session to ensure a secure working environment."
                        },
                        {
                        name: "Lunch Break Area",
                        x: 820,
                        y: 540,
                        collisionType: "alert",
                        collisiontext: "You take a well-deserved lunch break with your co-workers."
                        }
                    ]
                    },
                    {
                    part: 2,
                    objectives: [
                        {
                        id: "Objective3_1",
                        name: "Inspect Completed Work",
                        complete: false
                        },
                        {
                        id: "Objective3_2",
                        name: "Clean Up and Secure Site",
                        complete: false
                        }
                    ],
                    targets: [
                        {
                        name: "Inspection Point",
                        x: 90,
                        y: 600,
                        collisionType: "alert",
                        collisiontext: "You inspect the completed work to ensure it meets the required standards."
                        },
                        {
                        name: "Equipment Storage",
                        x: 220,
                        y: 800,
                        collisionType: "alert",
                        collisiontext: "You clean up your tools and equipment and store them properly."
                        },
                        {
                        name: "Site Exit",
                        x: 900,
                        y: 900,
                        collisionType: "alert",
                        collisiontext: "You secure the construction site and leave for the day, feeling accomplished."
                        }
                    ]
                }
            ]
        }   
    };

    /* src\MovingDotSpacePortfromReact.svelte generated by Svelte v3.59.2 */

    const { Object: Object_1$2, console: console_1$6 } = globals;

    const file$b = "src\\MovingDotSpacePortfromReact.svelte";

    function get_each_context$8(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[29] = list[i];
    	return child_ctx;
    }

    function get_each_context_1$3(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[32] = list[i];
    	return child_ctx;
    }

    // (286:4) {#each themeKeys as key}
    function create_each_block_1$3(ctx) {
    	let option;
    	let t_value = /*key*/ ctx[32] + "";
    	let t;

    	const block = {
    		c: function create() {
    			option = element("option");
    			t = text(t_value);
    			option.__value = /*key*/ ctx[32];
    			option.value = option.__value;
    			add_location(option, file$b, 286, 8, 11619);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, option, anchor);
    			append_dev(option, t);
    		},
    		p: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(option);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$3.name,
    		type: "each",
    		source: "(286:4) {#each themeKeys as key}",
    		ctx
    	});

    	return block;
    }

    // (298:4) {#each $targets as target (target.name)}
    function create_each_block$8(key_1, ctx) {
    	let first;
    	let target;
    	let t0;
    	let span;
    	let t1_value = /*target*/ ctx[29].name + "";
    	let t1;
    	let current;

    	target = new MovingDotTargetPortfromReact({
    			props: { position: /*target*/ ctx[29] },
    			$$inline: true
    		});

    	const block = {
    		key: key_1,
    		first: null,
    		c: function create() {
    			first = empty();
    			create_component(target.$$.fragment);
    			t0 = space();
    			span = element("span");
    			t1 = text(t1_value);
    			set_style(span, "position", "absolute");
    			set_style(span, "left", /*target*/ ctx[29].x + "px");
    			set_style(span, "top", /*target*/ ctx[29].y + "px");
    			add_location(span, file$b, 299, 8, 12755);
    			this.first = first;
    		},
    		m: function mount(target$1, anchor) {
    			insert_dev(target$1, first, anchor);
    			mount_component(target, target$1, anchor);
    			insert_dev(target$1, t0, anchor);
    			insert_dev(target$1, span, anchor);
    			append_dev(span, t1);
    			current = true;
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			const target_changes = {};
    			if (dirty[0] & /*$targets*/ 4096) target_changes.position = /*target*/ ctx[29];
    			target.$set(target_changes);
    			if ((!current || dirty[0] & /*$targets*/ 4096) && t1_value !== (t1_value = /*target*/ ctx[29].name + "")) set_data_dev(t1, t1_value);

    			if (!current || dirty[0] & /*$targets*/ 4096) {
    				set_style(span, "left", /*target*/ ctx[29].x + "px");
    			}

    			if (!current || dirty[0] & /*$targets*/ 4096) {
    				set_style(span, "top", /*target*/ ctx[29].y + "px");
    			}
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(target.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(target.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(first);
    			destroy_component(target, detaching);
    			if (detaching) detach_dev(t0);
    			if (detaching) detach_dev(span);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$8.name,
    		type: "each",
    		source: "(298:4) {#each $targets as target (target.name)}",
    		ctx
    	});

    	return block;
    }

    // (304:4) {#if isModalOpen}
    function create_if_block_1$1(ctx) {
    	let modal;
    	let current;

    	modal = new MovingDotSpaceSimpleModal({
    			props: {
    				isOpen: /*isModalOpen*/ ctx[3],
    				onClose: /*handleModalClose*/ ctx[19],
    				title: /*currentcollisiontitletext*/ ctx[5],
    				content: /*currentcollisiontext*/ ctx[6],
    				items: /*currentcollisionitems*/ ctx[7],
    				currentTheme: /*currentTheme*/ ctx[10],
    				themeActions: themes[/*currentTheme*/ ctx[10]].actions
    			},
    			$$inline: true
    		});

    	const block = {
    		c: function create() {
    			create_component(modal.$$.fragment);
    		},
    		m: function mount(target, anchor) {
    			mount_component(modal, target, anchor);
    			current = true;
    		},
    		p: function update(ctx, dirty) {
    			const modal_changes = {};
    			if (dirty[0] & /*isModalOpen*/ 8) modal_changes.isOpen = /*isModalOpen*/ ctx[3];
    			if (dirty[0] & /*currentcollisiontitletext*/ 32) modal_changes.title = /*currentcollisiontitletext*/ ctx[5];
    			if (dirty[0] & /*currentcollisiontext*/ 64) modal_changes.content = /*currentcollisiontext*/ ctx[6];
    			if (dirty[0] & /*currentcollisionitems*/ 128) modal_changes.items = /*currentcollisionitems*/ ctx[7];
    			if (dirty[0] & /*currentTheme*/ 1024) modal_changes.currentTheme = /*currentTheme*/ ctx[10];
    			if (dirty[0] & /*currentTheme*/ 1024) modal_changes.themeActions = themes[/*currentTheme*/ ctx[10]].actions;
    			modal.$set(modal_changes);
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(modal.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(modal.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			destroy_component(modal, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_1$1.name,
    		type: "if",
    		source: "(304:4) {#if isModalOpen}",
    		ctx
    	});

    	return block;
    }

    // (308:4) {#if isSMModalOpen}
    function create_if_block$4(ctx) {
    	let smmodal;
    	let current;

    	smmodal = new SimpleStateMachineModal({
    			props: {
    				isOpen: /*isSMModalOpen*/ ctx[4],
    				onClose: /*handleModalClose*/ ctx[19],
    				modalStates: /*currentstatemodalstates*/ ctx[9]
    			},
    			$$inline: true
    		});

    	const block = {
    		c: function create() {
    			create_component(smmodal.$$.fragment);
    		},
    		m: function mount(target, anchor) {
    			mount_component(smmodal, target, anchor);
    			current = true;
    		},
    		p: function update(ctx, dirty) {
    			const smmodal_changes = {};
    			if (dirty[0] & /*isSMModalOpen*/ 16) smmodal_changes.isOpen = /*isSMModalOpen*/ ctx[4];
    			if (dirty[0] & /*currentstatemodalstates*/ 512) smmodal_changes.modalStates = /*currentstatemodalstates*/ ctx[9];
    			smmodal.$set(smmodal_changes);
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(smmodal.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(smmodal.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			destroy_component(smmodal, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$4.name,
    		type: "if",
    		source: "(308:4) {#if isSMModalOpen}",
    		ctx
    	});

    	return block;
    }

    // (318:0) <SimpleCollapsible title="Some practice modal ideas - how to solve the import issue (have to import all modals all the time?)">
    function create_default_slot$1(ctx) {
    	let h10;
    	let t1;
    	let fighttest;
    	let t2;
    	let modaltest;
    	let t3;
    	let h11;
    	let t5;
    	let findtest;
    	let t6;
    	let h12;
    	let t8;
    	let ordertest;
    	let current;
    	fighttest = new MovingDotSpaceGameFight({ $$inline: true });
    	modaltest = new MovingDotSpaceModalBrainstorm({ $$inline: true });
    	findtest = new MovingDotSpaceGameFind({ $$inline: true });
    	ordertest = new MovingDotSpaceGameOrder({ $$inline: true });

    	const block = {
    		c: function create() {
    			h10 = element("h1");
    			h10.textContent = "Expand this to allow up to 100 fighters on each side";
    			t1 = space();
    			create_component(fighttest.$$.fragment);
    			t2 = space();
    			create_component(modaltest.$$.fragment);
    			t3 = space();
    			h11 = element("h1");
    			h11.textContent = "Find games are choices between similar looking items missing information with limited information (Luck = More Targets)";
    			t5 = space();
    			create_component(findtest.$$.fragment);
    			t6 = space();
    			h12 = element("h1");
    			h12.textContent = "Find out/ make sense / Resolve Conflict = order mixed up and";
    			t8 = space();
    			create_component(ordertest.$$.fragment);
    			add_location(h10, file$b, 318, 4, 13722);
    			add_location(h11, file$b, 321, 4, 13827);
    			add_location(h12, file$b, 323, 4, 13980);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h10, anchor);
    			insert_dev(target, t1, anchor);
    			mount_component(fighttest, target, anchor);
    			insert_dev(target, t2, anchor);
    			mount_component(modaltest, target, anchor);
    			insert_dev(target, t3, anchor);
    			insert_dev(target, h11, anchor);
    			insert_dev(target, t5, anchor);
    			mount_component(findtest, target, anchor);
    			insert_dev(target, t6, anchor);
    			insert_dev(target, h12, anchor);
    			insert_dev(target, t8, anchor);
    			mount_component(ordertest, target, anchor);
    			current = true;
    		},
    		p: noop,
    		i: function intro(local) {
    			if (current) return;
    			transition_in(fighttest.$$.fragment, local);
    			transition_in(modaltest.$$.fragment, local);
    			transition_in(findtest.$$.fragment, local);
    			transition_in(ordertest.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(fighttest.$$.fragment, local);
    			transition_out(modaltest.$$.fragment, local);
    			transition_out(findtest.$$.fragment, local);
    			transition_out(ordertest.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h10);
    			if (detaching) detach_dev(t1);
    			destroy_component(fighttest, detaching);
    			if (detaching) detach_dev(t2);
    			destroy_component(modaltest, detaching);
    			if (detaching) detach_dev(t3);
    			if (detaching) detach_dev(h11);
    			if (detaching) detach_dev(t5);
    			destroy_component(findtest, detaching);
    			if (detaching) detach_dev(t6);
    			if (detaching) detach_dev(h12);
    			if (detaching) detach_dev(t8);
    			destroy_component(ordertest, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_default_slot$1.name,
    		type: "slot",
    		source: "(318:0) <SimpleCollapsible title=\\\"Some practice modal ideas - how to solve the import issue (have to import all modals all the time?)\\\">",
    		ctx
    	});

    	return block;
    }

    function create_fragment$b(ctx) {
    	let t0;
    	let select;
    	let t1;
    	let button;
    	let t3;
    	let dotgamethememanager;
    	let t4;
    	let div1;
    	let canvas_1;
    	let t5;
    	let movingdot;
    	let t6;
    	let div0;
    	let t7;
    	let t8_value = /*$dotPosition*/ ctx[0].x + "";
    	let t8;
    	let t9;
    	let t10_value = /*$dotPosition*/ ctx[0].y + "";
    	let t10;
    	let t11;
    	let t12;
    	let each_blocks = [];
    	let each1_lookup = new Map();
    	let t13;
    	let t14;
    	let t15;
    	let movingdotstats;
    	let t16;
    	let h1;
    	let t18;
    	let hr;
    	let t19;
    	let simplecollapsible;
    	let current;
    	let mounted;
    	let dispose;
    	let each_value_1 = /*themeKeys*/ ctx[15];
    	validate_each_argument(each_value_1);
    	let each_blocks_1 = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks_1[i] = create_each_block_1$3(get_each_context_1$3(ctx, each_value_1, i));
    	}

    	dotgamethememanager = new MovingDotSpaceThemeManager({
    			props: {
    				ChangedContentPlaceholder: /*ChangedContentPlaceholdertoSend*/ ctx[1]
    			},
    			$$inline: true
    		});

    	let movingdot_props = {
    		position: /*$dotPosition*/ ctx[0],
    		boundaries: /*boundaries*/ ctx[14]
    	};

    	movingdot = new MovingDotPortfromReact({ props: movingdot_props, $$inline: true });
    	/*movingdot_binding*/ ctx[23](movingdot);
    	movingdot.$on("move", /*move_handler*/ ctx[24]);
    	let each_value = /*$targets*/ ctx[12];
    	validate_each_argument(each_value);
    	const get_key = ctx => /*target*/ ctx[29].name;
    	validate_each_keys(ctx, each_value, get_each_context$8, get_key);

    	for (let i = 0; i < each_value.length; i += 1) {
    		let child_ctx = get_each_context$8(ctx, each_value, i);
    		let key = get_key(child_ctx);
    		each1_lookup.set(key, each_blocks[i] = create_each_block$8(key, child_ctx));
    	}

    	let if_block0 = /*isModalOpen*/ ctx[3] && create_if_block_1$1(ctx);
    	let if_block1 = /*isSMModalOpen*/ ctx[4] && create_if_block$4(ctx);
    	movingdotstats = new MovingDotStatDisplay({ $$inline: true });

    	simplecollapsible = new SimpleCollapsible({
    			props: {
    				title: "Some practice modal ideas - how to solve the import issue (have to import all modals all the time?)",
    				$$slots: { default: [create_default_slot$1] },
    				$$scope: { ctx }
    			},
    			$$inline: true
    		});

    	const block = {
    		c: function create() {
    			t0 = text("Game Selector\r\n");
    			select = element("select");

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				each_blocks_1[i].c();
    			}

    			t1 = text("\r\n | \r\n");
    			button = element("button");
    			button.textContent = "Test load for the auto gen config";
    			t3 = space();
    			create_component(dotgamethememanager.$$.fragment);
    			t4 = space();
    			div1 = element("div");
    			canvas_1 = element("canvas");
    			t5 = space();
    			create_component(movingdot.$$.fragment);
    			t6 = space();
    			div0 = element("div");
    			t7 = text("Minor Game Events Log for player ||| Position for Developer ");
    			t8 = text(t8_value);
    			t9 = space();
    			t10 = text(t10_value);
    			t11 = text(" - TODO - Story Line / Avatars? / Clock System ||| For Job Experience focused Stats can be Emotions Stress Frustration Relief Tiredness Confidence (Percieved Skill) Experience (Actual Skill)");
    			t12 = space();

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t13 = space();
    			if (if_block0) if_block0.c();
    			t14 = space();
    			if (if_block1) if_block1.c();
    			t15 = space();
    			create_component(movingdotstats.$$.fragment);
    			t16 = space();
    			h1 = element("h1");
    			h1.textContent = "Simple Game is normally just story with fighting and traversing mechanics repeated in between videos with as heavy customisation of any part of the game as possible";
    			t18 = space();
    			hr = element("hr");
    			t19 = space();
    			create_component(simplecollapsible.$$.fragment);
    			if (/*currentTheme*/ ctx[10] === void 0) add_render_callback(() => /*select_change_handler*/ ctx[21].call(select));
    			add_location(select, file$b, 284, 0, 11521);
    			add_location(button, file$b, 290, 0, 11684);
    			set_style(canvas_1, "width", "100%");
    			set_style(canvas_1, "height", "100%");
    			attr_dev(canvas_1, "tabindex", "0");
    			add_location(canvas_1, file$b, 294, 4, 12091);
    			attr_dev(div0, "id", "overlayText");
    			attr_dev(div0, "class", "svelte-c2nwl9");
    			add_location(div0, file$b, 296, 4, 12349);
    			attr_dev(div1, "id", "game-container");
    			set_style(div1, "position", "relative");
    			set_style(div1, "width", "100%");
    			set_style(div1, "height", "100vh");
    			set_style(div1, "border", "1px solid black");
    			set_style(div1, "overflow", "hidden");
    			set_style(div1, "background-image", "url('" + /*CurrentGameBackground*/ ctx[11] + "')");
    			set_style(div1, "background-size", "cover");
    			set_style(div1, "background-position", "center");
    			add_location(div1, file$b, 293, 0, 11858);
    			add_location(h1, file$b, 314, 0, 13406);
    			add_location(hr, file$b, 315, 0, 13581);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, t0, anchor);
    			insert_dev(target, select, anchor);

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				if (each_blocks_1[i]) {
    					each_blocks_1[i].m(select, null);
    				}
    			}

    			select_option(select, /*currentTheme*/ ctx[10], true);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, button, anchor);
    			insert_dev(target, t3, anchor);
    			mount_component(dotgamethememanager, target, anchor);
    			insert_dev(target, t4, anchor);
    			insert_dev(target, div1, anchor);
    			append_dev(div1, canvas_1);
    			/*canvas_1_binding*/ ctx[22](canvas_1);
    			append_dev(div1, t5);
    			mount_component(movingdot, div1, null);
    			append_dev(div1, t6);
    			append_dev(div1, div0);
    			append_dev(div0, t7);
    			append_dev(div0, t8);
    			append_dev(div0, t9);
    			append_dev(div0, t10);
    			append_dev(div0, t11);
    			append_dev(div1, t12);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div1, null);
    				}
    			}

    			append_dev(div1, t13);
    			if (if_block0) if_block0.m(div1, null);
    			append_dev(div1, t14);
    			if (if_block1) if_block1.m(div1, null);
    			insert_dev(target, t15, anchor);
    			mount_component(movingdotstats, target, anchor);
    			insert_dev(target, t16, anchor);
    			insert_dev(target, h1, anchor);
    			insert_dev(target, t18, anchor);
    			insert_dev(target, hr, anchor);
    			insert_dev(target, t19, anchor);
    			mount_component(simplecollapsible, target, anchor);
    			current = true;

    			if (!mounted) {
    				dispose = [
    					listen_dev(select, "change", /*select_change_handler*/ ctx[21]),
    					listen_dev(select, "change", /*changeTheme*/ ctx[16], false, false, false, false),
    					listen_dev(button, "click", /*loadexperimentaltheme*/ ctx[17], false, false, false, false),
    					listen_dev(canvas_1, "click", /*handleSpaceClick*/ ctx[18], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*themeKeys*/ 32768) {
    				each_value_1 = /*themeKeys*/ ctx[15];
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$3(ctx, each_value_1, i);

    					if (each_blocks_1[i]) {
    						each_blocks_1[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_1[i] = create_each_block_1$3(child_ctx);
    						each_blocks_1[i].c();
    						each_blocks_1[i].m(select, null);
    					}
    				}

    				for (; i < each_blocks_1.length; i += 1) {
    					each_blocks_1[i].d(1);
    				}

    				each_blocks_1.length = each_value_1.length;
    			}

    			if (dirty[0] & /*currentTheme, themeKeys*/ 33792) {
    				select_option(select, /*currentTheme*/ ctx[10]);
    			}

    			const dotgamethememanager_changes = {};
    			if (dirty[0] & /*ChangedContentPlaceholdertoSend*/ 2) dotgamethememanager_changes.ChangedContentPlaceholder = /*ChangedContentPlaceholdertoSend*/ ctx[1];
    			dotgamethememanager.$set(dotgamethememanager_changes);
    			const movingdot_changes = {};
    			if (dirty[0] & /*$dotPosition*/ 1) movingdot_changes.position = /*$dotPosition*/ ctx[0];
    			movingdot.$set(movingdot_changes);
    			if ((!current || dirty[0] & /*$dotPosition*/ 1) && t8_value !== (t8_value = /*$dotPosition*/ ctx[0].x + "")) set_data_dev(t8, t8_value);
    			if ((!current || dirty[0] & /*$dotPosition*/ 1) && t10_value !== (t10_value = /*$dotPosition*/ ctx[0].y + "")) set_data_dev(t10, t10_value);

    			if (dirty[0] & /*$targets*/ 4096) {
    				each_value = /*$targets*/ ctx[12];
    				validate_each_argument(each_value);
    				group_outros();
    				validate_each_keys(ctx, each_value, get_each_context$8, get_key);
    				each_blocks = update_keyed_each(each_blocks, dirty, get_key, 1, ctx, each_value, each1_lookup, div1, outro_and_destroy_block, create_each_block$8, t13, get_each_context$8);
    				check_outros();
    			}

    			if (/*isModalOpen*/ ctx[3]) {
    				if (if_block0) {
    					if_block0.p(ctx, dirty);

    					if (dirty[0] & /*isModalOpen*/ 8) {
    						transition_in(if_block0, 1);
    					}
    				} else {
    					if_block0 = create_if_block_1$1(ctx);
    					if_block0.c();
    					transition_in(if_block0, 1);
    					if_block0.m(div1, t14);
    				}
    			} else if (if_block0) {
    				group_outros();

    				transition_out(if_block0, 1, 1, () => {
    					if_block0 = null;
    				});

    				check_outros();
    			}

    			if (/*isSMModalOpen*/ ctx[4]) {
    				if (if_block1) {
    					if_block1.p(ctx, dirty);

    					if (dirty[0] & /*isSMModalOpen*/ 16) {
    						transition_in(if_block1, 1);
    					}
    				} else {
    					if_block1 = create_if_block$4(ctx);
    					if_block1.c();
    					transition_in(if_block1, 1);
    					if_block1.m(div1, null);
    				}
    			} else if (if_block1) {
    				group_outros();

    				transition_out(if_block1, 1, 1, () => {
    					if_block1 = null;
    				});

    				check_outros();
    			}

    			if (!current || dirty[0] & /*CurrentGameBackground*/ 2048) {
    				set_style(div1, "background-image", "url('" + /*CurrentGameBackground*/ ctx[11] + "')");
    			}

    			const simplecollapsible_changes = {};

    			if (dirty[1] & /*$$scope*/ 16) {
    				simplecollapsible_changes.$$scope = { dirty, ctx };
    			}

    			simplecollapsible.$set(simplecollapsible_changes);
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(dotgamethememanager.$$.fragment, local);
    			transition_in(movingdot.$$.fragment, local);

    			for (let i = 0; i < each_value.length; i += 1) {
    				transition_in(each_blocks[i]);
    			}

    			transition_in(if_block0);
    			transition_in(if_block1);
    			transition_in(movingdotstats.$$.fragment, local);
    			transition_in(simplecollapsible.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(dotgamethememanager.$$.fragment, local);
    			transition_out(movingdot.$$.fragment, local);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				transition_out(each_blocks[i]);
    			}

    			transition_out(if_block0);
    			transition_out(if_block1);
    			transition_out(movingdotstats.$$.fragment, local);
    			transition_out(simplecollapsible.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(t0);
    			if (detaching) detach_dev(select);
    			destroy_each(each_blocks_1, detaching);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(button);
    			if (detaching) detach_dev(t3);
    			destroy_component(dotgamethememanager, detaching);
    			if (detaching) detach_dev(t4);
    			if (detaching) detach_dev(div1);
    			/*canvas_1_binding*/ ctx[22](null);
    			/*movingdot_binding*/ ctx[23](null);
    			destroy_component(movingdot);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].d();
    			}

    			if (if_block0) if_block0.d();
    			if (if_block1) if_block1.d();
    			if (detaching) detach_dev(t15);
    			destroy_component(movingdotstats, detaching);
    			if (detaching) detach_dev(t16);
    			if (detaching) detach_dev(h1);
    			if (detaching) detach_dev(t18);
    			if (detaching) detach_dev(hr);
    			if (detaching) detach_dev(t19);
    			destroy_component(simplecollapsible, detaching);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$b.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$b($$self, $$props, $$invalidate) {
    	let $dotPosition;
    	let $targets;
    	let $autogenconfigtest;
    	validate_store(targets, 'targets');
    	component_subscribe($$self, targets, $$value => $$invalidate(12, $targets = $$value));
    	validate_store(autogenconfigtest, 'autogenconfigtest');
    	component_subscribe($$self, autogenconfigtest, $$value => $$invalidate(26, $autogenconfigtest = $$value));
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('MovingDotSpacePortfromReact', slots, []);
    	let ChangedContentPlaceholdertoSend = "No changes";
    	let canvas;
    	let dotPosition = writable({ x: 900, y: 450 });
    	validate_store(dotPosition, 'dotPosition');
    	component_subscribe($$self, dotPosition, value => $$invalidate(0, $dotPosition = value));
    	let boundaries = { maxX: 1835, maxY: 890, minX: 0, minY: 0 };
    	let isModalOpen = false;
    	let isSMModalOpen = false;
    	let currentcollisiontitletext;
    	let currentcollisiontext;
    	let currentcollisionitems = [];
    	let movingDotElement;
    	let currentstatemodalstates;
    	let currentTheme = 'Default'; // default theme
    	let currentThemeStage = 0;
    	let themeKeys = Object.keys(themes);
    	let CurrentGameBackground = themes[currentTheme].background; //GameBackgrounds[0].url;
    	inventory.set(themes[currentTheme].inventory);
    	skills.set(themes[currentTheme].skills);
    	objectives.set(themes[currentTheme].story[0].objectives);

    	targets.set([
    		...themes[currentTheme].persistentTargets,
    		...themes[currentTheme].story[0].targets
    	]);

    	themeactions.set(themes[currentTheme].actions);

    	//$: console.log($themeactions)    
    	// objectives.set(themes[currentTheme].objectives);
    	// targets.set(themes[currentTheme].storyparttargets[0])
    	// function changeTheme(event) {
    	//     currentTheme = event.target.value;
    	//     const theme = themes[currentTheme];
    	//     inventory.set(theme.inventory);
    	//     skills.set(theme.skills);
    	//     objectives.set(theme.objectives);
    	//     currentThemeStage = 0; // Resetting currentThemeStage to 0
    	//     targets.set(theme.storyparttargets[0]);
    	//     CurrentGameBackground = theme.background
    	//     ChangedContentPlaceholdertoSend = "TODO is all other variables to change"
    	// }
    	function changeTheme(event) {
    		$$invalidate(10, currentTheme = event.target.value);
    		console.log(currentTheme);
    		const theme = themes[currentTheme];
    		console.log(theme);
    		inventory.set(theme.inventory);
    		skills.set(theme.skills);
    		themeactions.set(themes.actions);
    		currentThemeStage = 0;
    		const initialStory = theme.story.find(part => part.part === 0);

    		if (initialStory) {
    			objectives.set(initialStory.objectives);

    			const uniqueTargets = [
    				...theme.persistentTargets,
    				...initialStory.targets.filter(target => !theme.persistentTargets.some(persistentTarget => persistentTarget.name === target.name))
    			];

    			targets.set(uniqueTargets);
    		} else {
    			// Handle the case when no initial story part is found
    			objectives.set([]);

    			targets.set([...theme.persistentTargets]);
    		}

    		$$invalidate(11, CurrentGameBackground = theme.background);
    		$$invalidate(1, ChangedContentPlaceholdertoSend = "TODO is all other variables to change");
    	}

    	function loadexperimentaltheme() {
    		if ($autogenconfigtest.story) {
    			inventory.set($autogenconfigtest.inventory);
    			skills.set($autogenconfigtest.skills);
    			themeactions.set($autogenconfigtest.actions);
    			currentThemeStage = 0;
    			const initialStory = $autogenconfigtest.story.find(part => part.part === 0);

    			if (initialStory) {
    				objectives.set(initialStory.objectives);

    				const uniqueTargets = [
    					...$autogenconfigtest.persistentTargets,
    					...initialStory.targets.filter(target => !$autogenconfigtest.persistentTargets.some(persistentTarget => persistentTarget.name === target.name))
    				];

    				targets.set(uniqueTargets);
    			} else {
    				// Handle the case when no initial story part is found
    				objectives.set([]);

    				targets.set([...$autogenconfigtest.persistentTargets]);
    			}

    			$$invalidate(11, CurrentGameBackground = $autogenconfigtest.background);
    			$$invalidate(1, ChangedContentPlaceholdertoSend = "TODO is all other variables to change");
    		} else {
    			alert("Merge not performed");
    		}
    	}

    	function handleSpaceClick() {
    		//console.log('Container clicked!', event);
    		movingDotElement.focusDot();
    	}

    	function handleModalClose() {
    		$$invalidate(3, isModalOpen = false);
    		$$invalidate(4, isSMModalOpen = false);
    		movingDotElement.focusDot();
    	}

    	function updateDotPosition(newX, newY) {
    		dotPosition.set({ x: newX, y: newY });
    	}

    	// Collision check function
    	const checkCollision = dotPos => {
    		$targets.forEach(target => {
    			if (dotPos.x < target.x + 10 && dotPos.x + 10 > target.x && dotPos.y < target.y + 10 && dotPos.y + 10 > target.y) {
    				handleCollision(target);
    			}
    		});
    	};

    	// Handle collision based on the target object
    	const handleCollision = target => {
    		if (target.subtargets) {
    			alert("Subtargets found. Can be used as discovered locations or just splitting one target into a self contained set of targets. (variable logged in console)");
    			console.log(target.subtargets);
    		} //eventually use to temporarily act as the all targets in the map which can each all have smmodals

    		switch (target.collisionType) {
    			case "":
    				console.log("Nothing Happenedddd");
    				break;
    			case "alert":
    				alert(target.collisiontext);
    				break;
    			case "decision":
    				if (confirm(target.collisiontext)) {
    					alert("You said yes");
    				} else {
    					alert("You said no");
    				}
    				break;
    			case "modal":
    				$$invalidate(3, isModalOpen = true);
    				$$invalidate(5, currentcollisiontitletext = target.modalConfig.title);
    				$$invalidate(6, currentcollisiontext = target.modalConfig.content);
    				$$invalidate(7, currentcollisionitems = target.modalConfig.actions);
    				break;
    			case "smmodal":
    				$$invalidate(4, isSMModalOpen = true);
    				console.log('smmodal');
    				console.log(target.modalStates);
    				$$invalidate(9, currentstatemodalstates = target.modalStates);
    				//currentcollisiontitletext = target.modalConfig.title;
    				//currentcollisiontext = target.modalConfig.content;
    				//currentcollisionitems = target.modalConfig.actions;
    				break;
    			case "storypartchange":
    				currentThemeStage = target.transitionToPart;
    				const newStoryPart = themes[currentTheme].story.find(part => part.part === currentThemeStage);
    				if (newStoryPart) {
    					objectives.set(newStoryPart.objectives);
    					targets.set([...themes[currentTheme].persistentTargets, ...newStoryPart.targets]);
    				}
    				// currentThemeStage = target.newStage;
    				// targets.set(themes[currentTheme].storyparttargets[currentThemeStage])
    				break;
    			case "requirementsgated":
    				const currentObjectives = themes[currentTheme].story[currentThemeStage].objectives;
    				const allObjectivesCompleted = currentObjectives.every(objective => objective.complete);
    				if (allObjectivesCompleted && target.requirements > 5) {
    					//if (target.requirements > 5){
    					alert(target.collisiontext);
    				} else {
    					alert("You have not journeyed enough to explore this area yet (Stats required: and an inventory item)");
    				}
    				break;
    		} // Handle other permanent UI elements here
    	}; // ...
    	//ChatGPT Suggested Options
    	// Change the background color of the canvas or a specific element.
    	// case "changeBackgroundColor":

    	const writable_props = [];

    	Object_1$2.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$6.warn(`<MovingDotSpacePortfromReact> was created with unknown prop '${key}'`);
    	});

    	function select_change_handler() {
    		currentTheme = select_value(this);
    		$$invalidate(10, currentTheme);
    		$$invalidate(15, themeKeys);
    	}

    	function canvas_1_binding($$value) {
    		binding_callbacks[$$value ? 'unshift' : 'push'](() => {
    			canvas = $$value;
    			$$invalidate(2, canvas);
    		});
    	}

    	function movingdot_binding($$value) {
    		binding_callbacks[$$value ? 'unshift' : 'push'](() => {
    			movingDotElement = $$value;
    			$$invalidate(8, movingDotElement);
    		});
    	}

    	const move_handler = e => updateDotPosition(e.detail.x, e.detail.y);

    	$$self.$capture_state = () => ({
    		onMount,
    		writable,
    		MovingDot: MovingDotPortfromReact,
    		Target: MovingDotTargetPortfromReact,
    		Modal: MovingDotSpaceSimpleModal,
    		SMModal: SimpleStateMachineModal,
    		MovingDotStats: MovingDotStatDisplay,
    		DotGameThemeManager: MovingDotSpaceThemeManager,
    		FightTest: MovingDotSpaceGameFight,
    		ModalTest: MovingDotSpaceModalBrainstorm,
    		FindTest: MovingDotSpaceGameFind,
    		OrderTest: MovingDotSpaceGameOrder,
    		SimpleCollapsible,
    		themes,
    		inventory,
    		skills,
    		objectives,
    		targets,
    		themeactions,
    		autogenconfigtest,
    		ChangedContentPlaceholdertoSend,
    		canvas,
    		dotPosition,
    		boundaries,
    		isModalOpen,
    		isSMModalOpen,
    		currentcollisiontitletext,
    		currentcollisiontext,
    		currentcollisionitems,
    		movingDotElement,
    		currentstatemodalstates,
    		currentTheme,
    		currentThemeStage,
    		themeKeys,
    		CurrentGameBackground,
    		changeTheme,
    		loadexperimentaltheme,
    		handleSpaceClick,
    		handleModalClose,
    		updateDotPosition,
    		checkCollision,
    		handleCollision,
    		$dotPosition,
    		$targets,
    		$autogenconfigtest
    	});

    	$$self.$inject_state = $$props => {
    		if ('ChangedContentPlaceholdertoSend' in $$props) $$invalidate(1, ChangedContentPlaceholdertoSend = $$props.ChangedContentPlaceholdertoSend);
    		if ('canvas' in $$props) $$invalidate(2, canvas = $$props.canvas);
    		if ('dotPosition' in $$props) $$invalidate(13, dotPosition = $$props.dotPosition);
    		if ('boundaries' in $$props) $$invalidate(14, boundaries = $$props.boundaries);
    		if ('isModalOpen' in $$props) $$invalidate(3, isModalOpen = $$props.isModalOpen);
    		if ('isSMModalOpen' in $$props) $$invalidate(4, isSMModalOpen = $$props.isSMModalOpen);
    		if ('currentcollisiontitletext' in $$props) $$invalidate(5, currentcollisiontitletext = $$props.currentcollisiontitletext);
    		if ('currentcollisiontext' in $$props) $$invalidate(6, currentcollisiontext = $$props.currentcollisiontext);
    		if ('currentcollisionitems' in $$props) $$invalidate(7, currentcollisionitems = $$props.currentcollisionitems);
    		if ('movingDotElement' in $$props) $$invalidate(8, movingDotElement = $$props.movingDotElement);
    		if ('currentstatemodalstates' in $$props) $$invalidate(9, currentstatemodalstates = $$props.currentstatemodalstates);
    		if ('currentTheme' in $$props) $$invalidate(10, currentTheme = $$props.currentTheme);
    		if ('currentThemeStage' in $$props) currentThemeStage = $$props.currentThemeStage;
    		if ('themeKeys' in $$props) $$invalidate(15, themeKeys = $$props.themeKeys);
    		if ('CurrentGameBackground' in $$props) $$invalidate(11, CurrentGameBackground = $$props.CurrentGameBackground);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	$$self.$$.update = () => {
    		if ($$self.$$.dirty[0] & /*$dotPosition*/ 1) {
    			//     document.body.style.backgroundColor = target.color;
    			//     break;
    			// Play a sound effect. You'll need to pre-load these sounds.
    			// case "playSound":
    			//     new Audio(target.soundUrl).play();
    			//     break;
    			// Redirect the user to a different URL.
    			// case "redirect":
    			//     window.location.href = target.url;
    			//     break;
    			// Increase the size of the dot.
    			// case "enlargeDot":
    			//     dotElement.style.transform = "scale(1.5)";
    			//     break;
    			// Decrease the size of the dot.
    			// case "shrinkDot":
    			//     dotElement.style.transform = "scale(0.5)";
    			//     break;
    			// Apply a rotation to the dot.
    			// case "rotateDot":
    			//     dotElement.style.transform = "rotate(45deg)";
    			//     break;
    			// Toggle the visibility of a specific element on the page.
    			// case "toggleVisibility":
    			//     let elem = document.getElementById(target.elementId);
    			//     elem.style.display = elem.style.display === 'none' ? 'block' : 'none';
    			//     break;
    			// Trigger a CSS animation on a specific element.
    			// case "startAnimation":
    			//     let animElem = document.getElementById(target.elementId);
    			//     animElem.classList.add(target.animationClass);
    			//     break;
    			// Increase a score or counter displayed on the screen.
    			// case "incrementScore":
    			//     score += target.incrementValue;
    			//     updateScoreDisplay(); // Assuming you have a function to update the score display
    			//     break;
    			// Change the color of the dot.
    			// case "changeDotColor":
    			//     dotElement.style.backgroundColor = target.color;
    			//     break;
    			// Reactive statement to check collision whenever dotPosition changes
    			$dotPosition && checkCollision($dotPosition);
    		}
    	};

    	return [
    		$dotPosition,
    		ChangedContentPlaceholdertoSend,
    		canvas,
    		isModalOpen,
    		isSMModalOpen,
    		currentcollisiontitletext,
    		currentcollisiontext,
    		currentcollisionitems,
    		movingDotElement,
    		currentstatemodalstates,
    		currentTheme,
    		CurrentGameBackground,
    		$targets,
    		dotPosition,
    		boundaries,
    		themeKeys,
    		changeTheme,
    		loadexperimentaltheme,
    		handleSpaceClick,
    		handleModalClose,
    		updateDotPosition,
    		select_change_handler,
    		canvas_1_binding,
    		movingdot_binding,
    		move_handler
    	];
    }

    class MovingDotSpacePortfromReact extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$b, create_fragment$b, safe_not_equal, {}, null, [-1, -1]);

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "MovingDotSpacePortfromReact",
    			options,
    			id: create_fragment$b.name
    		});
    	}
    }

    /* src\YoutubeIframeAPICustomInterface.svelte generated by Svelte v3.59.2 */

    const { console: console_1$5 } = globals;

    const file$a = "src\\YoutubeIframeAPICustomInterface.svelte";

    function get_each_context$7(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[76] = list[i];
    	child_ctx[78] = i;
    	return child_ctx;
    }

    // (518:8) {#each YTIDitems as item, index}
    function create_each_block$7(ctx) {
    	let button;
    	let t0_value = /*item*/ ctx[76] + "";
    	let t0;
    	let t1;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[43](/*index*/ ctx[78]);
    	}

    	const block = {
    		c: function create() {
    			button = element("button");
    			t0 = text(t0_value);
    			t1 = space();
    			add_location(button, file$a, 518, 12, 18828);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t0);
    			append_dev(button, t1);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty[0] & /*YTIDitems*/ 65536 && t0_value !== (t0_value = /*item*/ ctx[76] + "")) set_data_dev(t0, t0_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$7.name,
    		type: "each",
    		source: "(518:8) {#each YTIDitems as item, index}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$a(ctx) {
    	let h10;
    	let t1;
    	let h20;
    	let t3;
    	let h3;
    	let t4;
    	let b;
    	let t6;
    	let h11;
    	let t7;
    	let t8;
    	let t9;
    	let div1;
    	let label;
    	let br0;
    	let t11;
    	let input0;
    	let t12;
    	let button0;
    	let t14;
    	let button1;
    	let t16;
    	let br1;
    	let t17;
    	let textarea0;
    	let br2;
    	let t18;
    	let div0;
    	let t19;
    	let div2;
    	let input1;
    	let t20;
    	let input2;
    	let t21;
    	let textarea1;
    	let t22;
    	let button2;
    	let t24;
    	let pre;
    	let t25;
    	let t26;
    	let div7;
    	let div3;
    	let t27;
    	let div4;
    	let t28;
    	let t29_value = /*currentTime*/ ctx[4].toFixed(2) + "";
    	let t29;
    	let t30;
    	let t31;
    	let div5;
    	let t32;
    	let t33;
    	let br3;
    	let t34;
    	let t35;
    	let t36;
    	let br4;
    	let t37;
    	let div6;
    	let t38;
    	let t39;
    	let t40;
    	let div8;
    	let t41;
    	let t42;
    	let t43;
    	let br5;
    	let t44;
    	let input3;
    	let t45;
    	let button3;
    	let t47;
    	let t48;
    	let t49;
    	let button4;
    	let t51;
    	let textarea2;
    	let t52;
    	let button5;
    	let t56;
    	let button6;
    	let t60;
    	let t61;
    	let t62;
    	let t63_value = /*timestamps*/ ctx[11].length + "";
    	let t63;
    	let t64;
    	let br6;
    	let t65;
    	let button7;
    	let t67;
    	let button8;
    	let t68;
    	let button8_class_value;
    	let button8_disabled_value;
    	let t69;
    	let button9;
    	let t70;
    	let button9_class_value;
    	let button9_disabled_value;
    	let t71;
    	let button10;
    	let t72;
    	let button10_class_value;
    	let button10_disabled_value;
    	let t73;
    	let t74;
    	let t75;
    	let t76_value = /*userTimestamps*/ ctx[1].length + "";
    	let t76;
    	let t77;
    	let br7;
    	let t78;
    	let t79;
    	let t80;
    	let t81_value = /*r2userTimestamps*/ ctx[12].length + "";
    	let t81;
    	let t82;
    	let br8;
    	let t83;
    	let br9;
    	let t84;
    	let button11;
    	let t86;
    	let button12;
    	let t88;
    	let input4;
    	let t89;
    	let br10;
    	let t90;
    	let input5;
    	let t91;
    	let input6;
    	let t92;
    	let input7;
    	let t93;
    	let input8;
    	let t94;
    	let div9;
    	let h21;
    	let t96;
    	let h22;
    	let t98;
    	let hr;
    	let t99;
    	let div10;
    	let t100;
    	let br11;
    	let mounted;
    	let dispose;
    	let each_value = /*YTIDitems*/ ctx[16];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$7(get_each_context$7(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			h10 = element("h1");
    			h10.textContent = "Custom Youtube Player for learning Video and music";
    			t1 = space();
    			h20 = element("h2");
    			h20.textContent = "Next Step for social media is to build in education blocks eg. App lets you watch next short uninterrupted if you get answer right, app forces you to see the correction as overlay if you get it wrong";
    			t3 = space();
    			h3 = element("h3");
    			t4 = text("End Goal is special subtitles - Nouns Verbs and images of them in sync with video AND ");
    			b = element("b");
    			b.textContent = "NB NB NB random repitition of items over video Reading as you watch any video NB NB NB";
    			t6 = space();
    			h11 = element("h1");
    			t7 = text("Debug subs = ");
    			t8 = text(/*$ytsubcurrenttext*/ ctx[22]);
    			t9 = space();
    			div1 = element("div");
    			label = element("label");
    			label.textContent = "Manage Multiple Videos";
    			br0 = element("br");
    			t11 = text("\r\n    Import ");
    			input0 = element("input");
    			t12 = space();
    			button0 = element("button");
    			button0.textContent = "Add Items";
    			t14 = space();
    			button1 = element("button");
    			button1.textContent = "Download List as Text File";
    			t16 = space();
    			br1 = element("br");
    			t17 = space();
    			textarea0 = element("textarea");
    			br2 = element("br");
    			t18 = space();
    			div0 = element("div");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t19 = space();
    			div2 = element("div");
    			input1 = element("input");
    			t20 = text("\r\n    Start/Stop Word Update (Dummy Transcript as default)\r\n    ");
    			input2 = element("input");
    			t21 = space();
    			textarea1 = element("textarea");
    			t22 = space();
    			button2 = element("button");
    			button2.textContent = "Convert YT Transcript to JSON Test";
    			t24 = space();
    			pre = element("pre");
    			t25 = text(/*jsonOutput*/ ctx[6]);
    			t26 = space();
    			div7 = element("div");
    			div3 = element("div");
    			t27 = space();
    			div4 = element("div");
    			t28 = text("Current Time: ");
    			t29 = text(t29_value);
    			t30 = text(" seconds");
    			t31 = space();
    			div5 = element("div");
    			t32 = text(/*line*/ ctx[8]);
    			t33 = space();
    			br3 = element("br");
    			t34 = space();
    			t35 = text(/*currentWord*/ ctx[7]);
    			t36 = space();
    			br4 = element("br");
    			t37 = space();
    			div6 = element("div");
    			t38 = text("Debug subs (Hide = '') = ");
    			t39 = text(/*$ytsubcurrenttext*/ ctx[22]);
    			t40 = space();
    			div8 = element("div");
    			t41 = text("Note Taking Section based on auto gen timestamp (currently ");
    			t42 = text(/*interval*/ ctx[23]);
    			t43 = text("s) (caution - all changes saved) --- ");
    			br5 = element("br");
    			t44 = space();
    			input3 = element("input");
    			t45 = space();
    			button3 = element("button");
    			button3.textContent = "create note Segments";
    			t47 = text(" | Current index of Note: ");
    			t48 = text(/*currentIndex*/ ctx[10]);
    			t49 = text(" | ");
    			button4 = element("button");
    			button4.textContent = "Save Notes to File";
    			t51 = text("  Overlay notes on screen check box | AI analysis generate button |\r\n    ");
    			textarea2 = element("textarea");
    			t52 = space();
    			button5 = element("button");
    			button5.textContent = `Previous Auto Timestamp - ${/*interval*/ ctx[23]}s`;
    			t56 = space();
    			button6 = element("button");
    			button6.textContent = `Next Auto Timestamp - ${/*interval*/ ctx[23]}s`;
    			t60 = text("\r\nAuto Timestamps: ");
    			t61 = text(/*currentIndex*/ ctx[10]);
    			t62 = text(" / ");
    			t63 = text(t63_value);
    			t64 = space();
    			br6 = element("br");
    			t65 = space();
    			button7 = element("button");
    			button7.textContent = "Add Timestamp";
    			t67 = space();
    			button8 = element("button");
    			t68 = text("Current User Timestamp (incomplete)");
    			t69 = space();
    			button9 = element("button");
    			t70 = text("Previous User Timestamp");
    			t71 = space();
    			button10 = element("button");
    			t72 = text("Next User Timestamp");
    			t73 = text("\r\nUser Timestamps: ");
    			t74 = text(/*currentuserIndex*/ ctx[0]);
    			t75 = text(" / ");
    			t76 = text(t76_value);
    			t77 = space();
    			br7 = element("br");
    			t78 = text(" Round 2 (/n) User Timestamps: ");
    			t79 = text(/*currentuserIndex*/ ctx[0]);
    			t80 = text(" / ");
    			t81 = text(t81_value);
    			t82 = space();
    			br8 = element("br");
    			t83 = text("A list of one messes up the logic for the counter in conjuction with the user timestamp button reactivity ");
    			br9 = element("br");
    			t84 = space();
    			button11 = element("button");
    			button11.textContent = "Export Timestamps";
    			t86 = space();
    			button12 = element("button");
    			button12.textContent = "Export Round 2 Timestamps";
    			t88 = text(" Import Timestamps (Incomplete) ");
    			input4 = element("input");
    			t89 = space();
    			br10 = element("br");
    			t90 = text(" Interval Repeat ");
    			input5 = element("input");
    			t91 = text(" ||| Start ");
    			input6 = element("input");
    			t92 = text(" End ");
    			input7 = element("input");
    			t93 = text(" Reps ");
    			input8 = element("input");
    			t94 = space();
    			div9 = element("div");
    			h21 = element("h2");
    			h21.textContent = "Anticipation Training? -- Verbs in subtitle order known before interval repitition?";
    			t96 = space();
    			h22 = element("h2");
    			h22.textContent = "Stateful Video - Reverse Interval Repeat aka parts of the video you know == Autoskip sections";
    			t98 = space();
    			hr = element("hr");
    			t99 = space();
    			div10 = element("div");
    			t100 = text("Skip Interval Button sections\r\n    ");
    			br11 = element("br");
    			add_location(h10, file$a, 504, 0, 17783);
    			add_location(h20, file$a, 505, 0, 17844);
    			add_location(b, file$a, 506, 90, 18144);
    			add_location(h3, file$a, 506, 0, 18054);
    			add_location(h11, file$a, 508, 0, 18246);
    			attr_dev(label, "for", "ytid-input");
    			add_location(label, file$a, 511, 4, 18304);
    			add_location(br0, file$a, 511, 58, 18358);
    			attr_dev(input0, "type", "file");
    			attr_dev(input0, "id", "file-import");
    			add_location(input0, file$a, 512, 11, 18375);
    			add_location(button0, file$a, 513, 4, 18452);
    			add_location(button1, file$a, 514, 4, 18508);
    			add_location(br1, file$a, 514, 76, 18580);
    			attr_dev(textarea0, "id", "ytid-input");
    			attr_dev(textarea0, "rows", "4");
    			set_style(textarea0, "width", "35%");
    			attr_dev(textarea0, "placeholder", "Add multiple Youtube IDs separated by new lines to make buttons");
    			add_location(textarea0, file$a, 515, 4, 18590);
    			add_location(br2, file$a, 515, 171, 18757);
    			add_location(div0, file$a, 516, 4, 18767);
    			add_location(div1, file$a, 510, 0, 18293);
    			attr_dev(input1, "type", "text");
    			add_location(input1, file$a, 527, 4, 18974);
    			attr_dev(input2, "type", "checkbox");
    			add_location(input2, file$a, 529, 4, 19086);
    			attr_dev(textarea1, "placeholder", "Enter transcript here...");
    			add_location(textarea1, file$a, 534, 4, 19409);
    			add_location(button2, file$a, 535, 4, 19499);
    			attr_dev(pre, "class", "transcriptpre svelte-udvqea");
    			add_location(pre, file$a, 536, 4, 19584);
    			add_location(div2, file$a, 526, 0, 18963);
    			attr_dev(div3, "id", "youtube-player");
    			set_style(div3, "height", "90vh");
    			set_style(div3, "width", "90%");
    			add_location(div3, file$a, 540, 4, 19680);
    			set_style(div4, "position", "absolute");
    			set_style(div4, "top", "0%");
    			set_style(div4, "left", "40%");
    			set_style(div4, "color", "white");
    			set_style(div4, "background-color", "rgba(0, 0, 0, 0.5)");
    			add_location(div4, file$a, 541, 4, 19750);
    			add_location(br3, file$a, 545, 15, 20070);
    			add_location(br4, file$a, 546, 22, 20098);
    			set_style(div5, "position", "absolute");
    			set_style(div5, "top", "50%");
    			set_style(div5, "left", "20%");
    			set_style(div5, "color", "white");
    			set_style(div5, "background-color", "rgba(0, 0, 0, 0.5)");
    			set_style(div5, "font-size", "100px");
    			add_location(div5, file$a, 544, 4, 19929);
    			set_style(div6, "position", "absolute");
    			set_style(div6, "top", "25%");
    			set_style(div6, "left", "30%");
    			set_style(div6, "color", "white");
    			set_style(div6, "background-color", "rgba(0, 0, 0, 0.5)");
    			set_style(div6, "font-size", "100px");
    			add_location(div6, file$a, 548, 4, 20120);
    			set_style(div7, "position", "relative");
    			add_location(div7, file$a, 539, 0, 19641);
    			add_location(br5, file$a, 554, 110, 20442);
    			attr_dev(input3, "type", "file");
    			add_location(input3, file$a, 555, 4, 20452);
    			add_location(button3, file$a, 555, 59, 20507);
    			add_location(button4, file$a, 555, 169, 20617);
    			attr_dev(textarea2, "name", "notesubtitles");
    			attr_dev(textarea2, "id", "notestextarea");
    			attr_dev(textarea2, "rows", "2");
    			set_style(textarea2, "width", "100%");
    			add_location(textarea2, file$a, 556, 4, 20759);
    			add_location(div8, file$a, 553, 0, 20325);
    			add_location(button5, file$a, 560, 0, 20986);
    			add_location(button6, file$a, 561, 0, 21079);
    			add_location(br6, file$a, 564, 0, 21221);
    			add_location(button7, file$a, 565, 0, 21227);
    			attr_dev(button8, "class", button8_class_value = "" + (null_to_empty(/*currentindexButtonClass*/ ctx[19]) + " svelte-udvqea"));
    			button8.disabled = button8_disabled_value = /*currentuserIndex*/ ctx[0] <= 0;
    			add_location(button8, file$a, 566, 0, 21287);
    			attr_dev(button9, "class", button9_class_value = "" + (null_to_empty(/*previousindexButtonClass*/ ctx[20]) + " svelte-udvqea"));
    			button9.disabled = button9_disabled_value = /*currentuserIndex*/ ctx[0] <= 0;
    			add_location(button9, file$a, 567, 0, 21442);
    			attr_dev(button10, "class", button10_class_value = "" + (null_to_empty(/*nextindexButtonClass*/ ctx[21]) + " svelte-udvqea"));
    			button10.disabled = button10_disabled_value = /*currentuserIndex*/ ctx[0] >= /*userTimestamps*/ ctx[1].length - 1;
    			add_location(button10, file$a, 568, 0, 21587);
    			add_location(br7, file$a, 571, 0, 21810);
    			add_location(br8, file$a, 571, 82, 21892);
    			add_location(br9, file$a, 571, 192, 22002);
    			add_location(button11, file$a, 572, 0, 22008);
    			add_location(button12, file$a, 572, 63, 22071);
    			attr_dev(input4, "type", "file");
    			attr_dev(input4, "accept", ".json");
    			add_location(input4, file$a, 572, 167, 22175);
    			add_location(br10, file$a, 573, 0, 22240);
    			attr_dev(input5, "type", "checkbox");
    			add_location(input5, file$a, 573, 21, 22261);
    			attr_dev(input6, "type", "number");
    			attr_dev(input6, "class", "numberinput svelte-udvqea");
    			attr_dev(input6, "min", "0");
    			add_location(input6, file$a, 573, 82, 22322);
    			attr_dev(input7, "type", "number");
    			attr_dev(input7, "class", "numberinput svelte-udvqea");
    			attr_dev(input7, "min", "0");
    			add_location(input7, file$a, 573, 162, 22402);
    			attr_dev(input8, "type", "number");
    			attr_dev(input8, "class", "numberinput svelte-udvqea");
    			attr_dev(input8, "min", "0");
    			add_location(input8, file$a, 573, 241, 22481);
    			add_location(h21, file$a, 577, 4, 22594);
    			add_location(h22, file$a, 578, 4, 22692);
    			attr_dev(div9, "class", "imagesubtitle svelte-udvqea");
    			add_location(div9, file$a, 576, 0, 22561);
    			add_location(hr, file$a, 582, 0, 22808);
    			add_location(br11, file$a, 585, 4, 22860);
    			add_location(div10, file$a, 583, 0, 22814);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h10, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, h20, anchor);
    			insert_dev(target, t3, anchor);
    			insert_dev(target, h3, anchor);
    			append_dev(h3, t4);
    			append_dev(h3, b);
    			insert_dev(target, t6, anchor);
    			insert_dev(target, h11, anchor);
    			append_dev(h11, t7);
    			append_dev(h11, t8);
    			insert_dev(target, t9, anchor);
    			insert_dev(target, div1, anchor);
    			append_dev(div1, label);
    			append_dev(div1, br0);
    			append_dev(div1, t11);
    			append_dev(div1, input0);
    			append_dev(div1, t12);
    			append_dev(div1, button0);
    			append_dev(div1, t14);
    			append_dev(div1, button1);
    			append_dev(div1, t16);
    			append_dev(div1, br1);
    			append_dev(div1, t17);
    			append_dev(div1, textarea0);
    			set_input_value(textarea0, /*YTIDinput*/ ctx[17]);
    			append_dev(div1, br2);
    			append_dev(div1, t18);
    			append_dev(div1, div0);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div0, null);
    				}
    			}

    			insert_dev(target, t19, anchor);
    			insert_dev(target, div2, anchor);
    			append_dev(div2, input1);
    			set_input_value(input1, /*$ytsubcurrentID*/ ctx[3]);
    			append_dev(div2, t20);
    			append_dev(div2, input2);
    			input2.checked = /*isUpdating*/ ctx[9];
    			append_dev(div2, t21);
    			append_dev(div2, textarea1);
    			set_input_value(textarea1, /*transcript*/ ctx[5]);
    			append_dev(div2, t22);
    			append_dev(div2, button2);
    			append_dev(div2, t24);
    			append_dev(div2, pre);
    			append_dev(pre, t25);
    			insert_dev(target, t26, anchor);
    			insert_dev(target, div7, anchor);
    			append_dev(div7, div3);
    			append_dev(div7, t27);
    			append_dev(div7, div4);
    			append_dev(div4, t28);
    			append_dev(div4, t29);
    			append_dev(div4, t30);
    			append_dev(div7, t31);
    			append_dev(div7, div5);
    			append_dev(div5, t32);
    			append_dev(div5, t33);
    			append_dev(div5, br3);
    			append_dev(div5, t34);
    			append_dev(div5, t35);
    			append_dev(div5, t36);
    			append_dev(div5, br4);
    			append_dev(div7, t37);
    			append_dev(div7, div6);
    			append_dev(div6, t38);
    			append_dev(div6, t39);
    			insert_dev(target, t40, anchor);
    			insert_dev(target, div8, anchor);
    			append_dev(div8, t41);
    			append_dev(div8, t42);
    			append_dev(div8, t43);
    			append_dev(div8, br5);
    			append_dev(div8, t44);
    			append_dev(div8, input3);
    			append_dev(div8, t45);
    			append_dev(div8, button3);
    			append_dev(div8, t47);
    			append_dev(div8, t48);
    			append_dev(div8, t49);
    			append_dev(div8, button4);
    			append_dev(div8, t51);
    			append_dev(div8, textarea2);
    			set_input_value(textarea2, /*notesegments*/ ctx[18][/*currentIndex*/ ctx[10]]['notes']);
    			insert_dev(target, t52, anchor);
    			insert_dev(target, button5, anchor);
    			insert_dev(target, t56, anchor);
    			insert_dev(target, button6, anchor);
    			insert_dev(target, t60, anchor);
    			insert_dev(target, t61, anchor);
    			insert_dev(target, t62, anchor);
    			insert_dev(target, t63, anchor);
    			insert_dev(target, t64, anchor);
    			insert_dev(target, br6, anchor);
    			insert_dev(target, t65, anchor);
    			insert_dev(target, button7, anchor);
    			insert_dev(target, t67, anchor);
    			insert_dev(target, button8, anchor);
    			append_dev(button8, t68);
    			insert_dev(target, t69, anchor);
    			insert_dev(target, button9, anchor);
    			append_dev(button9, t70);
    			insert_dev(target, t71, anchor);
    			insert_dev(target, button10, anchor);
    			append_dev(button10, t72);
    			insert_dev(target, t73, anchor);
    			insert_dev(target, t74, anchor);
    			insert_dev(target, t75, anchor);
    			insert_dev(target, t76, anchor);
    			insert_dev(target, t77, anchor);
    			insert_dev(target, br7, anchor);
    			insert_dev(target, t78, anchor);
    			insert_dev(target, t79, anchor);
    			insert_dev(target, t80, anchor);
    			insert_dev(target, t81, anchor);
    			insert_dev(target, t82, anchor);
    			insert_dev(target, br8, anchor);
    			insert_dev(target, t83, anchor);
    			insert_dev(target, br9, anchor);
    			insert_dev(target, t84, anchor);
    			insert_dev(target, button11, anchor);
    			insert_dev(target, t86, anchor);
    			insert_dev(target, button12, anchor);
    			insert_dev(target, t88, anchor);
    			insert_dev(target, input4, anchor);
    			insert_dev(target, t89, anchor);
    			insert_dev(target, br10, anchor);
    			insert_dev(target, t90, anchor);
    			insert_dev(target, input5, anchor);
    			input5.checked = /*isRepeating*/ ctx[2];
    			insert_dev(target, t91, anchor);
    			insert_dev(target, input6, anchor);
    			set_input_value(input6, /*repstartTime*/ ctx[13]);
    			insert_dev(target, t92, anchor);
    			insert_dev(target, input7, anchor);
    			set_input_value(input7, /*rependTime*/ ctx[14]);
    			insert_dev(target, t93, anchor);
    			insert_dev(target, input8, anchor);
    			set_input_value(input8, /*repetitions*/ ctx[15]);
    			insert_dev(target, t94, anchor);
    			insert_dev(target, div9, anchor);
    			append_dev(div9, h21);
    			append_dev(div9, t96);
    			append_dev(div9, h22);
    			insert_dev(target, t98, anchor);
    			insert_dev(target, hr, anchor);
    			insert_dev(target, t99, anchor);
    			insert_dev(target, div10, anchor);
    			append_dev(div10, t100);
    			append_dev(div10, br11);

    			if (!mounted) {
    				dispose = [
    					listen_dev(input0, "change", /*YTIDhandleFileImport*/ ctx[39], false, false, false, false),
    					listen_dev(button0, "click", /*YTIDaddItems*/ ctx[36], false, false, false, false),
    					listen_dev(button1, "click", /*YTIDdownloadList*/ ctx[38], false, false, false, false),
    					listen_dev(textarea0, "input", /*textarea0_input_handler*/ ctx[42]),
    					listen_dev(input1, "input", /*input1_input_handler*/ ctx[44]),
    					listen_dev(input2, "change", /*input2_change_handler*/ ctx[45]),
    					listen_dev(input2, "click", /*toggleUpdate*/ ctx[25], false, false, false, false),
    					listen_dev(textarea1, "input", /*textarea1_input_handler*/ ctx[46]),
    					listen_dev(button2, "click", /*transcriptToJson*/ ctx[35], false, false, false, false),
    					listen_dev(input3, "change", /*loadnotesegmentstofile*/ ctx[41], false, false, false, false),
    					listen_dev(button3, "click", /*createNoteSegments*/ ctx[24], false, false, false, false),
    					listen_dev(button4, "click", /*savenoteSegmentstofile*/ ctx[40], false, false, false, false),
    					listen_dev(textarea2, "input", /*textarea2_input_handler*/ ctx[47]),
    					listen_dev(button5, "click", /*goToPreviousAutoTimestamp*/ ctx[27], false, false, false, false),
    					listen_dev(button6, "click", /*goToNextAutoTimestamp*/ ctx[26], false, false, false, false),
    					listen_dev(button7, "click", /*addUserTimestamp*/ ctx[28], false, false, false, false),
    					listen_dev(button8, "click", /*goToCurrentUserTimestamp*/ ctx[29], false, false, false, false),
    					listen_dev(button9, "click", /*goToPreviousUserTimestamp*/ ctx[31], false, false, false, false),
    					listen_dev(button10, "click", /*goToNextUserTimestamp*/ ctx[30], false, false, false, false),
    					listen_dev(button11, "click", /*exportTimestamps*/ ctx[32], false, false, false, false),
    					listen_dev(button12, "click", /*exportr2Timestamps*/ ctx[33], false, false, false, false),
    					listen_dev(input4, "change", /*importTimestamps*/ ctx[34], false, false, false, false),
    					listen_dev(input5, "change", /*input5_change_handler*/ ctx[48]),
    					listen_dev(input6, "input", /*input6_input_handler*/ ctx[49]),
    					listen_dev(input7, "input", /*input7_input_handler*/ ctx[50]),
    					listen_dev(input8, "input", /*input8_input_handler*/ ctx[51])
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty[0] & /*$ytsubcurrenttext*/ 4194304) set_data_dev(t8, /*$ytsubcurrenttext*/ ctx[22]);

    			if (dirty[0] & /*YTIDinput*/ 131072) {
    				set_input_value(textarea0, /*YTIDinput*/ ctx[17]);
    			}

    			if (dirty[0] & /*YTIDitems*/ 65536 | dirty[1] & /*YTIDupdateItem*/ 64) {
    				each_value = /*YTIDitems*/ ctx[16];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$7(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$7(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(div0, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}

    			if (dirty[0] & /*$ytsubcurrentID*/ 8 && input1.value !== /*$ytsubcurrentID*/ ctx[3]) {
    				set_input_value(input1, /*$ytsubcurrentID*/ ctx[3]);
    			}

    			if (dirty[0] & /*isUpdating*/ 512) {
    				input2.checked = /*isUpdating*/ ctx[9];
    			}

    			if (dirty[0] & /*transcript*/ 32) {
    				set_input_value(textarea1, /*transcript*/ ctx[5]);
    			}

    			if (dirty[0] & /*jsonOutput*/ 64) set_data_dev(t25, /*jsonOutput*/ ctx[6]);
    			if (dirty[0] & /*currentTime*/ 16 && t29_value !== (t29_value = /*currentTime*/ ctx[4].toFixed(2) + "")) set_data_dev(t29, t29_value);
    			if (dirty[0] & /*line*/ 256) set_data_dev(t32, /*line*/ ctx[8]);
    			if (dirty[0] & /*currentWord*/ 128) set_data_dev(t35, /*currentWord*/ ctx[7]);
    			if (dirty[0] & /*$ytsubcurrenttext*/ 4194304) set_data_dev(t39, /*$ytsubcurrenttext*/ ctx[22]);
    			if (dirty[0] & /*currentIndex*/ 1024) set_data_dev(t48, /*currentIndex*/ ctx[10]);

    			if (dirty[0] & /*notesegments, currentIndex*/ 263168) {
    				set_input_value(textarea2, /*notesegments*/ ctx[18][/*currentIndex*/ ctx[10]]['notes']);
    			}

    			if (dirty[0] & /*currentIndex*/ 1024) set_data_dev(t61, /*currentIndex*/ ctx[10]);
    			if (dirty[0] & /*timestamps*/ 2048 && t63_value !== (t63_value = /*timestamps*/ ctx[11].length + "")) set_data_dev(t63, t63_value);

    			if (dirty[0] & /*currentindexButtonClass*/ 524288 && button8_class_value !== (button8_class_value = "" + (null_to_empty(/*currentindexButtonClass*/ ctx[19]) + " svelte-udvqea"))) {
    				attr_dev(button8, "class", button8_class_value);
    			}

    			if (dirty[0] & /*currentuserIndex*/ 1 && button8_disabled_value !== (button8_disabled_value = /*currentuserIndex*/ ctx[0] <= 0)) {
    				prop_dev(button8, "disabled", button8_disabled_value);
    			}

    			if (dirty[0] & /*previousindexButtonClass*/ 1048576 && button9_class_value !== (button9_class_value = "" + (null_to_empty(/*previousindexButtonClass*/ ctx[20]) + " svelte-udvqea"))) {
    				attr_dev(button9, "class", button9_class_value);
    			}

    			if (dirty[0] & /*currentuserIndex*/ 1 && button9_disabled_value !== (button9_disabled_value = /*currentuserIndex*/ ctx[0] <= 0)) {
    				prop_dev(button9, "disabled", button9_disabled_value);
    			}

    			if (dirty[0] & /*nextindexButtonClass*/ 2097152 && button10_class_value !== (button10_class_value = "" + (null_to_empty(/*nextindexButtonClass*/ ctx[21]) + " svelte-udvqea"))) {
    				attr_dev(button10, "class", button10_class_value);
    			}

    			if (dirty[0] & /*currentuserIndex, userTimestamps*/ 3 && button10_disabled_value !== (button10_disabled_value = /*currentuserIndex*/ ctx[0] >= /*userTimestamps*/ ctx[1].length - 1)) {
    				prop_dev(button10, "disabled", button10_disabled_value);
    			}

    			if (dirty[0] & /*currentuserIndex*/ 1) set_data_dev(t74, /*currentuserIndex*/ ctx[0]);
    			if (dirty[0] & /*userTimestamps*/ 2 && t76_value !== (t76_value = /*userTimestamps*/ ctx[1].length + "")) set_data_dev(t76, t76_value);
    			if (dirty[0] & /*currentuserIndex*/ 1) set_data_dev(t79, /*currentuserIndex*/ ctx[0]);
    			if (dirty[0] & /*r2userTimestamps*/ 4096 && t81_value !== (t81_value = /*r2userTimestamps*/ ctx[12].length + "")) set_data_dev(t81, t81_value);

    			if (dirty[0] & /*isRepeating*/ 4) {
    				input5.checked = /*isRepeating*/ ctx[2];
    			}

    			if (dirty[0] & /*repstartTime*/ 8192 && to_number(input6.value) !== /*repstartTime*/ ctx[13]) {
    				set_input_value(input6, /*repstartTime*/ ctx[13]);
    			}

    			if (dirty[0] & /*rependTime*/ 16384 && to_number(input7.value) !== /*rependTime*/ ctx[14]) {
    				set_input_value(input7, /*rependTime*/ ctx[14]);
    			}

    			if (dirty[0] & /*repetitions*/ 32768 && to_number(input8.value) !== /*repetitions*/ ctx[15]) {
    				set_input_value(input8, /*repetitions*/ ctx[15]);
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h10);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(h20);
    			if (detaching) detach_dev(t3);
    			if (detaching) detach_dev(h3);
    			if (detaching) detach_dev(t6);
    			if (detaching) detach_dev(h11);
    			if (detaching) detach_dev(t9);
    			if (detaching) detach_dev(div1);
    			destroy_each(each_blocks, detaching);
    			if (detaching) detach_dev(t19);
    			if (detaching) detach_dev(div2);
    			if (detaching) detach_dev(t26);
    			if (detaching) detach_dev(div7);
    			if (detaching) detach_dev(t40);
    			if (detaching) detach_dev(div8);
    			if (detaching) detach_dev(t52);
    			if (detaching) detach_dev(button5);
    			if (detaching) detach_dev(t56);
    			if (detaching) detach_dev(button6);
    			if (detaching) detach_dev(t60);
    			if (detaching) detach_dev(t61);
    			if (detaching) detach_dev(t62);
    			if (detaching) detach_dev(t63);
    			if (detaching) detach_dev(t64);
    			if (detaching) detach_dev(br6);
    			if (detaching) detach_dev(t65);
    			if (detaching) detach_dev(button7);
    			if (detaching) detach_dev(t67);
    			if (detaching) detach_dev(button8);
    			if (detaching) detach_dev(t69);
    			if (detaching) detach_dev(button9);
    			if (detaching) detach_dev(t71);
    			if (detaching) detach_dev(button10);
    			if (detaching) detach_dev(t73);
    			if (detaching) detach_dev(t74);
    			if (detaching) detach_dev(t75);
    			if (detaching) detach_dev(t76);
    			if (detaching) detach_dev(t77);
    			if (detaching) detach_dev(br7);
    			if (detaching) detach_dev(t78);
    			if (detaching) detach_dev(t79);
    			if (detaching) detach_dev(t80);
    			if (detaching) detach_dev(t81);
    			if (detaching) detach_dev(t82);
    			if (detaching) detach_dev(br8);
    			if (detaching) detach_dev(t83);
    			if (detaching) detach_dev(br9);
    			if (detaching) detach_dev(t84);
    			if (detaching) detach_dev(button11);
    			if (detaching) detach_dev(t86);
    			if (detaching) detach_dev(button12);
    			if (detaching) detach_dev(t88);
    			if (detaching) detach_dev(input4);
    			if (detaching) detach_dev(t89);
    			if (detaching) detach_dev(br10);
    			if (detaching) detach_dev(t90);
    			if (detaching) detach_dev(input5);
    			if (detaching) detach_dev(t91);
    			if (detaching) detach_dev(input6);
    			if (detaching) detach_dev(t92);
    			if (detaching) detach_dev(input7);
    			if (detaching) detach_dev(t93);
    			if (detaching) detach_dev(input8);
    			if (detaching) detach_dev(t94);
    			if (detaching) detach_dev(div9);
    			if (detaching) detach_dev(t98);
    			if (detaching) detach_dev(hr);
    			if (detaching) detach_dev(t99);
    			if (detaching) detach_dev(div10);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$a.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function getRandomWord(line) {
    	let words = line.split(" ");
    	return words[Math.floor(Math.random() * words.length)];
    }

    function instance$a($$self, $$props, $$invalidate) {
    	let nextindexButtonClass;
    	let previousindexButtonClass;
    	let currentindexButtonClass;
    	let $ytsubcurrentID;
    	let $ytsubcurrenttext;
    	validate_store(ytsubcurrentID, 'ytsubcurrentID');
    	component_subscribe($$self, ytsubcurrentID, $$value => $$invalidate(3, $ytsubcurrentID = $$value));
    	validate_store(ytsubcurrenttext, 'ytsubcurrenttext');
    	component_subscribe($$self, ytsubcurrenttext, $$value => $$invalidate(22, $ytsubcurrenttext = $$value));
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('YoutubeIframeAPICustomInterface', slots, []);
    	let player;
    	let interval = 20; // Define your interval
    	let currentTime = 0;
    	let timeUpdateInterval;

    	// Assuming 'transcript' contains your video transcript
    	let transcript = `Line 1 of the transcript.
    Line 2 of the transcript.
    Line 3 food
    Line 4 foodest
    Line 5 foods
    Line 6 fooder
    Line 7 foodz
    Line 8 fooding
    ...`; // Replace with your actual transcript

    	let jsonOutput = '';
    	let lines = transcript.split("\n");
    	let currentWord = "";
    	let line = "";
    	let isUpdating = false;
    	let updateInterval;
    	let currentIndex = 0; // Assuming this is initialized appropriately
    	let currentuserIndex = 0; // Assuming this is initialized appropriately
    	let timestamps = []; // Array of timestamps
    	let userTimestamps = []; // Array of user timestamps
    	let r2userTimestamps = []; // Array of user timestamps

    	//let currentvideoId = 'IVJkOHTBPn0';
    	let youTubeApiLoaded = false;

    	let currentvideoduration;
    	let regeneratedautotimestamps = false;
    	let repstartTime = 10;
    	let rependTime = 20;
    	let repetitions = 20;
    	let intervalId;
    	let isRepeating = false;
    	let YTIDitems = ['mwO6v4BlgZQ', 'IVJkOHTBPn0'];
    	let YTIDinput = '';
    	let skipIntervals = [];
    	let intervalstartTime = 0;
    	let intervalendTime = 0;

    	let notesegments = [
    		{ start: 0, end: 20, notes: 'Test' },
    		{ start: 21, end: 40, notes: 'For if' },
    		{
    			start: 41,
    			end: 60,
    			notes: 'Correct text loads (Inititalise)'
    		}
    	];

    	window.onYouTubeIframeAPIReady = function () {
    		youTubeApiLoaded = true;
    		initYouTubePlayer();
    	};

    	// Function to initialize the YouTube player
    	function initYouTubePlayer() {
    		if (!youTubeApiLoaded) {
    			console.error("YouTube API is not ready yet.");
    			return;
    		}

    		regeneratedautotimestamps = false;

    		// Clear existing interval
    		clearInterval(timeUpdateInterval);

    		// Reinitialize player with new video ID
    		if (player) {
    			player.loadVideoById($ytsubcurrentID);
    		} else {
    			player = new YT.Player('youtube-player',
    			{
    					height: '360',
    					width: '640',
    					videoId: $ytsubcurrentID,
    					events: {
    						'onReady': onPlayerReady,
    						'onStateChange': onPlayerStateChange
    					}
    				});
    		}

    		// Reset and start the interval to update current time
    		timeUpdateInterval = setInterval(updateCurrentTime, 1000);
    	}

    	onMount(() => {
    		// Load the YouTube IFrame Player API
    		const tag = document.createElement('script');

    		tag.src = "https://www.youtube.com/iframe_api";
    		const firstScriptTag = document.getElementsByTagName('script')[0];
    		firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);

    		// Update the current time every second
    		timeUpdateInterval = setInterval(updateCurrentTime, 1000);
    	});

    	function autogeneratedtimestamps() {
    		currentvideoduration = player.getDuration();

    		//console.log("Video Duration: ", currentvideoduration);
    		const generatedTimestamps = [];

    		for (let i = interval; i < currentvideoduration; i += interval) {
    			generatedTimestamps.push(i);
    		}

    		$$invalidate(11, timestamps = generatedTimestamps);

    		// Do something with the timestamps
    		//console.log("Generated Timestamps: ", generatedTimestamps);
    		regeneratedautotimestamps = true;
    	}

    	function createNoteSegments() {
    		// console.log("Video duration: " + currentvideoduration);
    		// console.log("Timestamps: " + timestamps);
    		$$invalidate(18, notesegments = []); // Clear existing segments

    		let start = 0;

    		timestamps.forEach((end, index) => {
    			if (index === 0) {
    				notesegments.push({ start: 0, end, notes: "" });
    			} else {
    				start = timestamps[index - 1] + 1;
    				notesegments.push({ start, end, notes: "" });
    			}
    		});

    		// Add a final segment if the last timestamp is less than the video duration
    		if (timestamps[timestamps.length - 1] < currentvideoduration) {
    			notesegments.push({
    				start: timestamps[timestamps.length - 1] + 1,
    				end: currentvideoduration,
    				notes: ""
    			});
    		}
    	}

    	// Event handler for when the player is ready
    	function onPlayerReady(event) {
    		autogeneratedtimestamps();
    		createNoteSegments();
    	}

    	function onPlayerStateChange(event) {
    		if (event.data === YT.PlayerState.PLAYING || event.data === YT.PlayerState.PAUSED) {
    			updateCurrentIndex();
    		}

    		// Check if the video has just started playing
    		if (event.data === YT.PlayerState.PLAYING && !regeneratedautotimestamps) {
    			autogeneratedtimestamps();
    			createNoteSegments();
    		}
    	}

    	function updateCurrentIndex() {
    		const currentTime = player.getCurrentTime();

    		// Find the closest timestamp
    		let closest = timestamps.reduce((prev, curr) => Math.abs(curr - currentTime) < Math.abs(prev - currentTime)
    		? curr
    		: prev);

    		$$invalidate(10, currentIndex = timestamps.indexOf(closest));
    	}

    	function updateCurrentTime() {
    		if (player && player.getCurrentTime) {
    			$$invalidate(4, currentTime = player.getCurrentTime());
    		}
    	}

    	onDestroy(() => {
    		clearInterval(timeUpdateInterval);
    	});

    	function updateWord() {
    		if (isUpdating) {
    			$$invalidate(8, line = lines[Math.floor(Math.random() * lines.length)]);
    			$$invalidate(7, currentWord = getRandomWord(line));
    		}
    	}

    	function toggleUpdate() {
    		lines = transcript.split("\n");
    		$$invalidate(9, isUpdating = !isUpdating);

    		if (isUpdating) {
    			updateWord(); // Immediately update once
    			updateInterval = setInterval(updateWord, 3000); // Update every 3 seconds
    		} else {
    			clearInterval(updateInterval);
    			$$invalidate(8, line = '');
    			$$invalidate(7, currentWord = '');
    		}
    	}

    	function goToNextAutoTimestamp() {
    		if (currentIndex < timestamps.length - 1) {
    			$$invalidate(10, currentIndex += 1);
    			player.seekTo(timestamps[currentIndex], true);
    		}
    	}

    	function goToPreviousAutoTimestamp() {
    		if (currentIndex > 0) {
    			$$invalidate(10, currentIndex -= 1);
    			player.seekTo(timestamps[currentIndex], true);
    		}
    	}

    	function addUserTimestamp() {
    		const currentTime = Math.floor(player.getCurrentTime());
    		$$invalidate(1, userTimestamps = [...userTimestamps, currentTime].sort((a, b) => a - b));
    	}

    	function addr2UserTimestamp() {
    		const currentTime = Math.floor(player.getCurrentTime());
    		$$invalidate(12, r2userTimestamps = [...r2userTimestamps, currentTime].sort((a, b) => a - b));
    	}

    	function goToCurrentUserTimestamp() {
    		if (currentuserIndex === 0 && currentIndex < 0) {
    			player.seekTo(userTimestamps[currentIndex], true);
    		} else if (currentuserIndex < 0) {
    			player.seekTo(userTimestamps[currentuserIndex], true);
    		} else {
    			// Handle the end of the list here
    			console.log("No selected user timestamp.");
    		} // You can also disable the "next" button or loop to the start if needed.
    	}

    	function goToNextUserTimestamp() {
    		if (currentuserIndex < userTimestamps.length - 1) {
    			$$invalidate(0, currentuserIndex += 1);
    			player.seekTo(userTimestamps[currentuserIndex], true);
    		} else {
    			// Handle the end of the list here
    			console.log("Reached the end of user timestamps.");
    		} // You can also disable the "next" button or loop to the start if needed.
    	}

    	function goToPreviousUserTimestamp() {
    		if (currentuserIndex > 0) {
    			$$invalidate(0, currentuserIndex -= 1);
    			player.seekTo(userTimestamps[currentuserIndex], true);
    		} else {
    			// Handle the beginning of the list here
    			console.log("Reached the start of user timestamps.");
    		} // You can also disable the "previous" button or loop to the end if needed.
    	}

    	function exportTimestamps() {
    		const data = JSON.stringify({
    			$ytsubcurrentID,
    			timestamps: userTimestamps
    		});

    		const blob = new Blob([data], { type: 'application/json' });
    		const url = URL.createObjectURL(blob);
    		const a = document.createElement('a');
    		a.style.display = 'none';
    		const filename = `${$ytsubcurrentID}_timestamps.json`;
    		a.href = url;
    		a.download = filename;
    		document.body.appendChild(a);
    		a.click();
    		window.URL.revokeObjectURL(url);
    	}

    	function exportr2Timestamps() {
    		const data = JSON.stringify({
    			$ytsubcurrentID,
    			timestamps: r2userTimestamps
    		});

    		const blob = new Blob([data], { type: 'application/json' });
    		const url = URL.createObjectURL(blob);
    		const a = document.createElement('a');
    		a.style.display = 'none';
    		const filename = `${$ytsubcurrentID}_round2timestamps.json`;
    		a.href = url;
    		a.download = filename;
    		document.body.appendChild(a);
    		a.click();
    		window.URL.revokeObjectURL(url);
    	}

    	function importTimestamps(event) {
    		// Check if the file input is not empty
    		const file = event.target.files[0];

    		if (!event.target.files || event.target.files.length === 0) {
    			alert('No file selected.');
    			return;
    		}

    		// Check if the file is a Blob (File objects inherit from Blob)
    		if (!(file instanceof Blob)) {
    			alert('Selected item is not a file.');
    			return;
    		}

    		const reader = new FileReader();

    		reader.onload = e => {
    			try {
    				const data = JSON.parse(e.target.result);

    				if (!Array.isArray(data.timestamps)) {
    					alert('Invalid file structure: timestamps should be an array.');
    					return;
    				}

    				set_store_value(ytsubcurrentID, $ytsubcurrentID = data.$ytsubcurrentID || '', $ytsubcurrentID);
    				$$invalidate(1, userTimestamps = data.timestamps);
    			} catch(error) {
    				alert('An error occurred while importing timestamps.'); //regeneratedautotimestamps = false; = true
    			}
    		};

    		reader.readAsText(file);
    	}

    	function transcriptToJson() {
    		const lines = transcript.split('\n').filter(line => line.trim() !== '');
    		const result = [];

    		for (let i = 0; i < lines.length; i += 2) {
    			const timestampLine = lines[i];
    			const textLine = lines[i + 1] || ''; // Ensure there's a line for text
    			const timestampParts = timestampLine.split(' ');
    			const timestamp = timestampParts.shift();
    			const timeParts = timestamp.split(':');
    			const seconds = parseInt(timeParts[0], 10) * 60 + parseInt(timeParts[1], 10);
    			result.push({ time: seconds, text: textLine.trim() });
    		}

    		$$invalidate(6, jsonOutput = JSON.stringify(result, null, 2));
    	}

    	function startRepetition() {
    		let count = 0;
    		player.seekTo(repstartTime, true);
    		player.playVideo();

    		intervalId = setInterval(
    			() => {
    				if (count < repetitions) {
    					player.seekTo(repstartTime, true);
    					count++;
    				} else {
    					stopRepetition();
    				}
    			},
    			(rependTime - repstartTime) * 1000
    		);
    	}

    	function stopRepetition() {
    		clearInterval(intervalId);
    	} //player.pauseVideo();

    	// Function to handle button click for adding items
    	function YTIDaddItems() {
    		const newItems = YTIDinput.split('\n').filter(item => item.trim() !== '');
    		YTIDitems.push(...newItems);
    		$$invalidate(17, YTIDinput = ''); // Clear textarea after adding
    		$$invalidate(16, YTIDitems = YTIDitems.slice());
    	}

    	function YTIDupdateItem(index) {
    		$$invalidate(16, YTIDitems[index] = `${YTIDitems[index]}`, YTIDitems); //(updated)`;
    		set_store_value(ytsubcurrentID, $ytsubcurrentID = YTIDitems[index], $ytsubcurrentID);
    		$$invalidate(16, YTIDitems = YTIDitems.slice());
    	}

    	function YTIDdownloadList() {
    		const blob = new Blob([YTIDitems.join('\n')], { type: 'text/plain' });
    		const url = URL.createObjectURL(blob);
    		const a = document.createElement('a');
    		a.href = url;
    		a.download = 'YTIDlist.txt'; // Name of the file to be downloaded
    		document.body.appendChild(a);
    		a.click();
    		document.body.removeChild(a);
    		URL.revokeObjectURL(url);
    	}

    	function YTIDhandleFileImport(event) {
    		const file = event.target.files[0];

    		if (file) {
    			const reader = new FileReader();

    			reader.onload = e => {
    				const fileContents = e.target.result;
    				$$invalidate(16, YTIDitems = fileContents.split('\n').filter(line => line.trim() !== ''));
    			};

    			reader.readAsText(file);
    		}
    	}

    	function checkSkipIntervals() {
    		const currentTime = player.getCurrentTime();

    		for (const interval of skipIntervals) {
    			if (currentTime >= interval.start && currentTime < interval.end) {
    				player.seekTo(interval.end);
    				break;
    			}
    		}
    	}

    	function addSkipInterval() {
    		skipIntervals.push({
    			start: intervalstartTime,
    			end: intervalendTime
    		});

    		skipIntervals = skipIntervals;
    		intervalstartTime = 0;
    		intervalendTime = 0;
    	}

    	function removeSkipInterval(index) {
    		skipIntervals.splice(index, 1);
    		skipIntervals = skipIntervals;
    	}

    	// function createnoteSegments() {
    	//     console.log(currentvideoduration)
    	//     console.log(timestamps)
    	//     notesegments = []; // Clear existing segments
    	//     for (let start = 0; start < currentvideoduration; start += timestamps) {
    	//         let end = start + timestamps - 1;
    	//         if (end > currentvideoduration) end = currentvideoduration; // Adjust last segment to not exceed video duration
    	//         notesegments.push({ start: start, end: end, notes: "" });
    	//     }
    	//     console.log(notesegments)
    	// }
    	// function createNoteSegments() {
    	//     console.log("Video duration: " + currentvideoduration);
    	//     console.log("Timestamps: " + timestamps);
    	//     notesegments = []; // Clear existing segments
    	//     let start = 0;
    	//     timestamps.forEach((end, index) => {
    	//         if (index === 0) {
    	//             notesegments.push({ start: 0, end: end, notes: "" });
    	//         } else {
    	//             start = timestamps[index - 1] + 1;
    	//             notesegments.push({ start: start, end: end, notes: "" });
    	//         }
    	//     });
    	//     // Add a final segment if the last timestamp is less than the video duration
    	//     if (timestamps[timestamps.length - 1] < currentvideoduration) {
    	//         notesegments.push({
    	//             start: timestamps[timestamps.length - 1] + 1,
    	//             end: currentvideoduration,
    	//             notes: ""
    	//         });
    	//     }
    	//     console.log(notesegments);
    	// }
    	function savenoteSegmentstofile() {
    		const dataStr = JSON.stringify(notesegments);
    		const blob = new Blob([dataStr], { type: "application/json" });

    		// Getting current date and time for filename
    		const now = new Date();

    		const dateTimeStamp = `${now.getFullYear()}-${(now.getMonth() + 1).toString().padStart(2, '0')}-${now.getDate().toString().padStart(2, '0')}_${now.getHours().toString().padStart(2, '0')}-${now.getMinutes().toString().padStart(2, '0')}-${now.getSeconds().toString().padStart(2, '0')}`;
    		const filename = `noteSegments_${$ytsubcurrentID}_${dateTimeStamp}.json`;
    		const url = URL.createObjectURL(blob);
    		const link = document.createElement('a');
    		link.href = url;
    		link.download = filename; //"notesegments.json";
    		document.body.appendChild(link);
    		link.click();
    		document.body.removeChild(link);
    		URL.revokeObjectURL(url);
    	}

    	function loadnotesegmentstofile(event) {
    		const file = event.target.files[0];

    		if (file) {
    			const reader = new FileReader();

    			reader.onload = e => {
    				$$invalidate(18, notesegments = JSON.parse(e.target.result));
    				console.log("Notes loaded:", notesegments);
    			};

    			reader.readAsText(file);
    		}
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$5.warn(`<YoutubeIframeAPICustomInterface> was created with unknown prop '${key}'`);
    	});

    	function textarea0_input_handler() {
    		YTIDinput = this.value;
    		$$invalidate(17, YTIDinput);
    	}

    	const click_handler = index => YTIDupdateItem(index);

    	function input1_input_handler() {
    		$ytsubcurrentID = this.value;
    		ytsubcurrentID.set($ytsubcurrentID);
    	}

    	function input2_change_handler() {
    		isUpdating = this.checked;
    		$$invalidate(9, isUpdating);
    	}

    	function textarea1_input_handler() {
    		transcript = this.value;
    		$$invalidate(5, transcript);
    	}

    	function textarea2_input_handler() {
    		notesegments[currentIndex]['notes'] = this.value;
    		$$invalidate(18, notesegments);
    	}

    	function input5_change_handler() {
    		isRepeating = this.checked;
    		$$invalidate(2, isRepeating);
    	}

    	function input6_input_handler() {
    		repstartTime = to_number(this.value);
    		$$invalidate(13, repstartTime);
    	}

    	function input7_input_handler() {
    		rependTime = to_number(this.value);
    		$$invalidate(14, rependTime);
    	}

    	function input8_input_handler() {
    		repetitions = to_number(this.value);
    		$$invalidate(15, repetitions);
    	}

    	$$self.$capture_state = () => ({
    		onMount,
    		onDestroy,
    		ytsubcurrenttext,
    		ytsubcurrentID,
    		ytsubuse,
    		ytsubuseplayer,
    		player,
    		interval,
    		currentTime,
    		timeUpdateInterval,
    		transcript,
    		jsonOutput,
    		lines,
    		currentWord,
    		line,
    		isUpdating,
    		updateInterval,
    		currentIndex,
    		currentuserIndex,
    		timestamps,
    		userTimestamps,
    		r2userTimestamps,
    		youTubeApiLoaded,
    		currentvideoduration,
    		regeneratedautotimestamps,
    		repstartTime,
    		rependTime,
    		repetitions,
    		intervalId,
    		isRepeating,
    		YTIDitems,
    		YTIDinput,
    		skipIntervals,
    		intervalstartTime,
    		intervalendTime,
    		notesegments,
    		initYouTubePlayer,
    		autogeneratedtimestamps,
    		createNoteSegments,
    		onPlayerReady,
    		onPlayerStateChange,
    		updateCurrentIndex,
    		updateCurrentTime,
    		getRandomWord,
    		updateWord,
    		toggleUpdate,
    		goToNextAutoTimestamp,
    		goToPreviousAutoTimestamp,
    		addUserTimestamp,
    		addr2UserTimestamp,
    		goToCurrentUserTimestamp,
    		goToNextUserTimestamp,
    		goToPreviousUserTimestamp,
    		exportTimestamps,
    		exportr2Timestamps,
    		importTimestamps,
    		transcriptToJson,
    		startRepetition,
    		stopRepetition,
    		YTIDaddItems,
    		YTIDupdateItem,
    		YTIDdownloadList,
    		YTIDhandleFileImport,
    		checkSkipIntervals,
    		addSkipInterval,
    		removeSkipInterval,
    		savenoteSegmentstofile,
    		loadnotesegmentstofile,
    		currentindexButtonClass,
    		previousindexButtonClass,
    		nextindexButtonClass,
    		$ytsubcurrentID,
    		$ytsubcurrenttext
    	});

    	$$self.$inject_state = $$props => {
    		if ('player' in $$props) player = $$props.player;
    		if ('interval' in $$props) $$invalidate(23, interval = $$props.interval);
    		if ('currentTime' in $$props) $$invalidate(4, currentTime = $$props.currentTime);
    		if ('timeUpdateInterval' in $$props) timeUpdateInterval = $$props.timeUpdateInterval;
    		if ('transcript' in $$props) $$invalidate(5, transcript = $$props.transcript);
    		if ('jsonOutput' in $$props) $$invalidate(6, jsonOutput = $$props.jsonOutput);
    		if ('lines' in $$props) lines = $$props.lines;
    		if ('currentWord' in $$props) $$invalidate(7, currentWord = $$props.currentWord);
    		if ('line' in $$props) $$invalidate(8, line = $$props.line);
    		if ('isUpdating' in $$props) $$invalidate(9, isUpdating = $$props.isUpdating);
    		if ('updateInterval' in $$props) updateInterval = $$props.updateInterval;
    		if ('currentIndex' in $$props) $$invalidate(10, currentIndex = $$props.currentIndex);
    		if ('currentuserIndex' in $$props) $$invalidate(0, currentuserIndex = $$props.currentuserIndex);
    		if ('timestamps' in $$props) $$invalidate(11, timestamps = $$props.timestamps);
    		if ('userTimestamps' in $$props) $$invalidate(1, userTimestamps = $$props.userTimestamps);
    		if ('r2userTimestamps' in $$props) $$invalidate(12, r2userTimestamps = $$props.r2userTimestamps);
    		if ('youTubeApiLoaded' in $$props) youTubeApiLoaded = $$props.youTubeApiLoaded;
    		if ('currentvideoduration' in $$props) currentvideoduration = $$props.currentvideoduration;
    		if ('regeneratedautotimestamps' in $$props) regeneratedautotimestamps = $$props.regeneratedautotimestamps;
    		if ('repstartTime' in $$props) $$invalidate(13, repstartTime = $$props.repstartTime);
    		if ('rependTime' in $$props) $$invalidate(14, rependTime = $$props.rependTime);
    		if ('repetitions' in $$props) $$invalidate(15, repetitions = $$props.repetitions);
    		if ('intervalId' in $$props) intervalId = $$props.intervalId;
    		if ('isRepeating' in $$props) $$invalidate(2, isRepeating = $$props.isRepeating);
    		if ('YTIDitems' in $$props) $$invalidate(16, YTIDitems = $$props.YTIDitems);
    		if ('YTIDinput' in $$props) $$invalidate(17, YTIDinput = $$props.YTIDinput);
    		if ('skipIntervals' in $$props) skipIntervals = $$props.skipIntervals;
    		if ('intervalstartTime' in $$props) intervalstartTime = $$props.intervalstartTime;
    		if ('intervalendTime' in $$props) intervalendTime = $$props.intervalendTime;
    		if ('notesegments' in $$props) $$invalidate(18, notesegments = $$props.notesegments);
    		if ('currentindexButtonClass' in $$props) $$invalidate(19, currentindexButtonClass = $$props.currentindexButtonClass);
    		if ('previousindexButtonClass' in $$props) $$invalidate(20, previousindexButtonClass = $$props.previousindexButtonClass);
    		if ('nextindexButtonClass' in $$props) $$invalidate(21, nextindexButtonClass = $$props.nextindexButtonClass);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	$$self.$$.update = () => {
    		if ($$self.$$.dirty[0] & /*$ytsubcurrentID*/ 8) {
    			if ($ytsubcurrentID) {
    				initYouTubePlayer();
    			}
    		}

    		if ($$self.$$.dirty[0] & /*currentuserIndex, userTimestamps*/ 3) {
    			$$invalidate(21, nextindexButtonClass = currentuserIndex >= userTimestamps.length - 1
    			? 'button-at-end'
    			: 'button');
    		}

    		if ($$self.$$.dirty[0] & /*currentuserIndex*/ 1) {
    			$$invalidate(20, previousindexButtonClass = currentuserIndex <= 0 ? 'button-at-end' : 'button');
    		}

    		if ($$self.$$.dirty[0] & /*currentuserIndex*/ 1) {
    			$$invalidate(19, currentindexButtonClass = currentuserIndex <= 0 ? 'button-at-end' : 'button');
    		}

    		if ($$self.$$.dirty[0] & /*isRepeating*/ 4) {
    			if (isRepeating) {
    				startRepetition();
    			} else {
    				stopRepetition();
    			}
    		}
    	};

    	return [
    		currentuserIndex,
    		userTimestamps,
    		isRepeating,
    		$ytsubcurrentID,
    		currentTime,
    		transcript,
    		jsonOutput,
    		currentWord,
    		line,
    		isUpdating,
    		currentIndex,
    		timestamps,
    		r2userTimestamps,
    		repstartTime,
    		rependTime,
    		repetitions,
    		YTIDitems,
    		YTIDinput,
    		notesegments,
    		currentindexButtonClass,
    		previousindexButtonClass,
    		nextindexButtonClass,
    		$ytsubcurrenttext,
    		interval,
    		createNoteSegments,
    		toggleUpdate,
    		goToNextAutoTimestamp,
    		goToPreviousAutoTimestamp,
    		addUserTimestamp,
    		goToCurrentUserTimestamp,
    		goToNextUserTimestamp,
    		goToPreviousUserTimestamp,
    		exportTimestamps,
    		exportr2Timestamps,
    		importTimestamps,
    		transcriptToJson,
    		YTIDaddItems,
    		YTIDupdateItem,
    		YTIDdownloadList,
    		YTIDhandleFileImport,
    		savenoteSegmentstofile,
    		loadnotesegmentstofile,
    		textarea0_input_handler,
    		click_handler,
    		input1_input_handler,
    		input2_change_handler,
    		textarea1_input_handler,
    		textarea2_input_handler,
    		input5_change_handler,
    		input6_input_handler,
    		input7_input_handler,
    		input8_input_handler
    	];
    }

    class YoutubeIframeAPICustomInterface extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$a, create_fragment$a, safe_not_equal, {}, null, [-1, -1, -1]);

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "YoutubeIframeAPICustomInterface",
    			options,
    			id: create_fragment$a.name
    		});
    	}
    }

    // Unique ID creation requires a high quality random # generator. In the browser we therefore
    // require the crypto API and do not support built-in fallback to lower quality random number
    // generators (like Math.random()).
    let getRandomValues;
    const rnds8 = new Uint8Array(16);
    function rng() {
      // lazy load so that environments that need to polyfill have a chance to do so
      if (!getRandomValues) {
        // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation.
        getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto);

        if (!getRandomValues) {
          throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported');
        }
      }

      return getRandomValues(rnds8);
    }

    /**
     * Convert array of 16 byte values to UUID string format of the form:
     * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
     */

    const byteToHex = [];

    for (let i = 0; i < 256; ++i) {
      byteToHex.push((i + 0x100).toString(16).slice(1));
    }

    function unsafeStringify(arr, offset = 0) {
      // Note: Be careful editing this code!  It's been tuned for performance
      // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434
      return byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]];
    }

    const randomUUID = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto);
    var native = {
      randomUUID
    };

    function v4(options, buf, offset) {
      if (native.randomUUID && !buf && !options) {
        return native.randomUUID();
      }

      options = options || {};
      const rnds = options.random || (options.rng || rng)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`

      rnds[6] = rnds[6] & 0x0f | 0x40;
      rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided

      if (buf) {
        offset = offset || 0;

        for (let i = 0; i < 16; ++i) {
          buf[offset + i] = rnds[i];
        }

        return buf;
      }

      return unsafeStringify(rnds);
    }

    /* src\RecursiveNestedCommentsElement.svelte generated by Svelte v3.59.2 */

    const { console: console_1$4 } = globals;
    const file$9 = "src\\RecursiveNestedCommentsElement.svelte";

    function get_each_context$6(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[15] = list[i];
    	child_ctx[16] = list;
    	child_ctx[17] = i;
    	return child_ctx;
    }

    // (126:16) {#if showReplyInput[comment.id]}
    function create_if_block$3(ctx) {
    	let div;
    	let input;
    	let t0;
    	let button;
    	let mounted;
    	let dispose;

    	function input_input_handler() {
    		/*input_input_handler*/ ctx[12].call(input, /*comment*/ ctx[15]);
    	}

    	function click_handler_1() {
    		return /*click_handler_1*/ ctx[13](/*comment*/ ctx[15]);
    	}

    	const block = {
    		c: function create() {
    			div = element("div");
    			input = element("input");
    			t0 = space();
    			button = element("button");
    			button.textContent = "Post Reply";
    			attr_dev(input, "placeholder", "Write a reply...");
    			add_location(input, file$9, 127, 24, 5188);
    			add_location(button, file$9, 128, 24, 5289);
    			attr_dev(div, "class", "reply-input");
    			add_location(div, file$9, 126, 20, 5137);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, input);
    			set_input_value(input, /*replyText*/ ctx[2][/*comment*/ ctx[15].id]);
    			append_dev(div, t0);
    			append_dev(div, button);

    			if (!mounted) {
    				dispose = [
    					listen_dev(input, "input", input_input_handler),
    					listen_dev(button, "click", click_handler_1, false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;

    			if (dirty & /*replyText, flattenedComments*/ 6 && input.value !== /*replyText*/ ctx[2][/*comment*/ ctx[15].id]) {
    				set_input_value(input, /*replyText*/ ctx[2][/*comment*/ ctx[15].id]);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$3.name,
    		type: "if",
    		source: "(126:16) {#if showReplyInput[comment.id]}",
    		ctx
    	});

    	return block;
    }

    // (122:8) {#each flattenedComments as comment}
    function create_each_block$6(ctx) {
    	let div;
    	let span;
    	let t0_value = /*comment*/ ctx[15].title + "";
    	let t0;
    	let t1;
    	let button;
    	let t3;
    	let t4;
    	let div_class_value;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[11](/*comment*/ ctx[15]);
    	}

    	let if_block = /*showReplyInput*/ ctx[3][/*comment*/ ctx[15].id] && create_if_block$3(ctx);

    	const block = {
    		c: function create() {
    			div = element("div");
    			span = element("span");
    			t0 = text(t0_value);
    			t1 = space();
    			button = element("button");
    			button.textContent = "Reply";
    			t3 = space();
    			if (if_block) if_block.c();
    			t4 = space();
    			add_location(span, file$9, 123, 16, 4951);
    			add_location(button, file$9, 124, 16, 4997);

    			attr_dev(div, "class", div_class_value = "" + (null_to_empty(/*comment*/ ctx[15].level === 0
    			? 'top-level-comment'
    			: 'comment') + " svelte-bsj1sx"));

    			set_style(div, "margin-left", /*comment*/ ctx[15].level * 20 + "px");
    			add_location(div, file$9, 122, 12, 4821);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, span);
    			append_dev(span, t0);
    			append_dev(div, t1);
    			append_dev(div, button);
    			append_dev(div, t3);
    			if (if_block) if_block.m(div, null);
    			append_dev(div, t4);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty & /*flattenedComments*/ 2 && t0_value !== (t0_value = /*comment*/ ctx[15].title + "")) set_data_dev(t0, t0_value);

    			if (/*showReplyInput*/ ctx[3][/*comment*/ ctx[15].id]) {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block$3(ctx);
    					if_block.c();
    					if_block.m(div, t4);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}

    			if (dirty & /*flattenedComments*/ 2 && div_class_value !== (div_class_value = "" + (null_to_empty(/*comment*/ ctx[15].level === 0
    			? 'top-level-comment'
    			: 'comment') + " svelte-bsj1sx"))) {
    				attr_dev(div, "class", div_class_value);
    			}

    			if (dirty & /*flattenedComments*/ 2) {
    				set_style(div, "margin-left", /*comment*/ ctx[15].level * 20 + "px");
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			if (if_block) if_block.d();
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$6.name,
    		type: "each",
    		source: "(122:8) {#each flattenedComments as comment}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$9(ctx) {
    	let h1;
    	let t1;
    	let h4;
    	let t3;
    	let simpleiframe;
    	let t4;
    	let div2;
    	let div0;
    	let button0;
    	let t6;
    	let input0;
    	let t7;
    	let input1;
    	let t8;
    	let button1;
    	let t10;
    	let br;
    	let t11;
    	let div1;
    	let current;
    	let mounted;
    	let dispose;

    	simpleiframe = new SimpleIFrame({
    			props: { webpages: /*LLMforassit*/ ctx[4] },
    			$$inline: true
    		});

    	let each_value = /*flattenedComments*/ ctx[1];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$6(get_each_context$6(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			h1 = element("h1");
    			h1.textContent = "Reddit based Nested Comments Idea for LMM responses that need further branching responses";
    			t1 = space();
    			h4 = element("h4");
    			h4.textContent = "Inspired by Vijay Bhati - https://github.com/vj98/Frontend-Machine-Coding/tree/main/nested-comments https://youtu.be/a4OA7QbHEho?list=PLBygUld3s6x8sI_H8UYROVMIVcuxUre1e";
    			t3 = text("\r\nLLM: ");
    			create_component(simpleiframe.$$.fragment);
    			t4 = space();
    			div2 = element("div");
    			div0 = element("div");
    			button0 = element("button");
    			button0.textContent = "Export Comments";
    			t6 = text("\r\n        | Import Exported Comments \r\n        ");
    			input0 = element("input");
    			t7 = text("\r\n        | \r\n        ");
    			input1 = element("input");
    			t8 = space();
    			button1 = element("button");
    			button1.textContent = "Post Comment";
    			t10 = space();
    			br = element("br");
    			t11 = space();
    			div1 = element("div");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h1, file$9, 106, 0, 3964);
    			add_location(h4, file$9, 107, 0, 4066);
    			add_location(button0, file$9, 111, 8, 4395);
    			attr_dev(input0, "type", "file");
    			add_location(input0, file$9, 113, 8, 4498);
    			attr_dev(input1, "placeholder", "Add a comment...");
    			add_location(input1, file$9, 115, 8, 4570);
    			add_location(button1, file$9, 116, 8, 4644);
    			add_location(div0, file$9, 110, 4, 4380);
    			add_location(br, file$9, 119, 4, 4723);
    			attr_dev(div1, "id", "comment-container");
    			add_location(div1, file$9, 120, 4, 4733);
    			attr_dev(div2, "class", "component-containter svelte-bsj1sx");
    			set_style(div2, "border", "1px solid black");
    			set_style(div2, "padding", "4px");
    			add_location(div2, file$9, 109, 0, 4293);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h1, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, h4, anchor);
    			insert_dev(target, t3, anchor);
    			mount_component(simpleiframe, target, anchor);
    			insert_dev(target, t4, anchor);
    			insert_dev(target, div2, anchor);
    			append_dev(div2, div0);
    			append_dev(div0, button0);
    			append_dev(div0, t6);
    			append_dev(div0, input0);
    			append_dev(div0, t7);
    			append_dev(div0, input1);
    			set_input_value(input1, /*newComment*/ ctx[0]);
    			append_dev(div0, t8);
    			append_dev(div0, button1);
    			append_dev(div2, t10);
    			append_dev(div2, br);
    			append_dev(div2, t11);
    			append_dev(div2, div1);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div1, null);
    				}
    			}

    			current = true;

    			if (!mounted) {
    				dispose = [
    					listen_dev(button0, "click", /*exportToJson*/ ctx[8], false, false, false, false),
    					listen_dev(input0, "change", /*handleFileUpload*/ ctx[9], false, false, false, false),
    					listen_dev(input1, "input", /*input1_input_handler*/ ctx[10]),
    					listen_dev(button1, "click", /*addComment*/ ctx[5], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*newComment*/ 1 && input1.value !== /*newComment*/ ctx[0]) {
    				set_input_value(input1, /*newComment*/ ctx[0]);
    			}

    			if (dirty & /*flattenedComments, addReply, replyText, toggleReplyInput, showReplyInput*/ 206) {
    				each_value = /*flattenedComments*/ ctx[1];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$6(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$6(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(div1, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(simpleiframe.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(simpleiframe.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h1);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(h4);
    			if (detaching) detach_dev(t3);
    			destroy_component(simpleiframe, detaching);
    			if (detaching) detach_dev(t4);
    			if (detaching) detach_dev(div2);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$9.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function flattenStructure(items, level = 0, parentId = null, processedIds = new Set()) {
    	let result = [];

    	items.forEach(item => {
    		if (processedIds.has(item.id)) return;
    		result.push({ ...item, level, parentId });
    		processedIds.add(item.id);

    		if (item.items && Array.isArray(item.items)) {
    			const childItems = flattenStructure(item.items, level + 1, item.id, processedIds);
    			result = result.concat(childItems);
    		}
    	});

    	return result;
    }

    function instance$9($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('RecursiveNestedCommentsElement', slots, []);

    	let LLMforassit = [
    		{
    			name: 'CohereForAI/c4ai-command-r-plus',
    			url: 'https://cohereforai-c4ai-command-r-plus.hf.space'
    		},
    		{
    			name: 'ysharma/Chat_with_Meta_llama3_8b',
    			url: 'https://ysharma-chat-with-meta-llama3-8b.hf.space'
    		},
    		{
    			name: 'Qwen/Qwen1.5-110B-Chat-demo',
    			url: 'https://qwen-qwen1-5-110b-chat-demo.hf.space'
    		}
    	]; //List of models with system prompt available //{ name: '', url: '' },

    	let comments = [];
    	let newComment = '';
    	let flattenedComments = [];
    	let replyText = {};
    	let showReplyInput = {};

    	const addComment = () => {
    		comments = [
    			...comments,
    			{
    				id: v4(),
    				title: newComment,
    				items: []
    			}
    		];

    		$$invalidate(0, newComment = '');
    		$$invalidate(1, flattenedComments = flattenStructure(comments));
    	};

    	const addReply = (parentId, replyText) => {
    		const findAndAddReply = (items, id) => {
    			for (let item of items) {
    				if (item.id === id) {
    					item.items.push({
    						id: v4(),
    						title: replyText,
    						items: []
    					});

    					return true;
    				}

    				if (item.items.length && findAndAddReply(item.items, id)) {
    					return true;
    				}
    			}

    			return false;
    		};

    		findAndAddReply(comments, parentId);
    		$$invalidate(1, flattenedComments = flattenStructure(comments));
    	};

    	// Function to toggle reply input
    	function toggleReplyInput(commentId) {
    		$$invalidate(3, showReplyInput[commentId] = !showReplyInput[commentId], showReplyInput);
    	}

    	function exportToJson() {
    		const dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(comments));
    		const downloadAnchorNode = document.createElement('a');
    		downloadAnchorNode.setAttribute("href", dataStr);
    		downloadAnchorNode.setAttribute("download", "comments.json");
    		document.body.appendChild(downloadAnchorNode);
    		downloadAnchorNode.click();
    		downloadAnchorNode.remove();
    	}

    	function handleFileUpload(event) {
    		const file = event.target.files[0];
    		if (!file) return;
    		const reader = new FileReader();

    		reader.onload = e => {
    			const text = e.target.result;

    			try {
    				comments = JSON.parse(text);
    				$$invalidate(1, flattenedComments = flattenStructure(comments));
    			} catch(error) {
    				console.error("Error parsing JSON:", error);
    			}
    		};

    		reader.readAsText(file);
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$4.warn(`<RecursiveNestedCommentsElement> was created with unknown prop '${key}'`);
    	});

    	function input1_input_handler() {
    		newComment = this.value;
    		$$invalidate(0, newComment);
    	}

    	const click_handler = comment => toggleReplyInput(comment.id);

    	function input_input_handler(comment) {
    		replyText[comment.id] = this.value;
    		$$invalidate(2, replyText);
    	}

    	const click_handler_1 = comment => {
    		addReply(comment.id, replyText[comment.id]);
    		toggleReplyInput(comment.id);
    	};

    	$$self.$capture_state = () => ({
    		uuidv4: v4,
    		SimpleIFrame,
    		LLMforassit,
    		comments,
    		newComment,
    		flattenedComments,
    		replyText,
    		showReplyInput,
    		flattenStructure,
    		addComment,
    		addReply,
    		toggleReplyInput,
    		exportToJson,
    		handleFileUpload
    	});

    	$$self.$inject_state = $$props => {
    		if ('LLMforassit' in $$props) $$invalidate(4, LLMforassit = $$props.LLMforassit);
    		if ('comments' in $$props) comments = $$props.comments;
    		if ('newComment' in $$props) $$invalidate(0, newComment = $$props.newComment);
    		if ('flattenedComments' in $$props) $$invalidate(1, flattenedComments = $$props.flattenedComments);
    		if ('replyText' in $$props) $$invalidate(2, replyText = $$props.replyText);
    		if ('showReplyInput' in $$props) $$invalidate(3, showReplyInput = $$props.showReplyInput);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		newComment,
    		flattenedComments,
    		replyText,
    		showReplyInput,
    		LLMforassit,
    		addComment,
    		addReply,
    		toggleReplyInput,
    		exportToJson,
    		handleFileUpload,
    		input1_input_handler,
    		click_handler,
    		input_input_handler,
    		click_handler_1
    	];
    }

    class RecursiveNestedCommentsElement extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$9, create_fragment$9, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "RecursiveNestedCommentsElement",
    			options,
    			id: create_fragment$9.name
    		});
    	}
    }

    /* src\CopyandRemoveListComponent.svelte generated by Svelte v3.59.2 */

    const { console: console_1$3 } = globals;
    const file$8 = "src\\CopyandRemoveListComponent.svelte";

    function get_each_context$5(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[6] = list[i];
    	return child_ctx;
    }

    // (26:0) {:else}
    function create_else_block(ctx) {
    	let each_blocks = [];
    	let each_1_lookup = new Map();
    	let each_1_anchor;
    	let each_value = /*items*/ ctx[1];
    	validate_each_argument(each_value);
    	const get_key = ctx => /*item*/ ctx[6].id;
    	validate_each_keys(ctx, each_value, get_each_context$5, get_key);

    	for (let i = 0; i < each_value.length; i += 1) {
    		let child_ctx = get_each_context$5(ctx, each_value, i);
    		let key = get_key(child_ctx);
    		each_1_lookup.set(key, each_blocks[i] = create_each_block$5(key, child_ctx));
    	}

    	const block = {
    		c: function create() {
    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			each_1_anchor = empty();
    		},
    		m: function mount(target, anchor) {
    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(target, anchor);
    				}
    			}

    			insert_dev(target, each_1_anchor, anchor);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*copyAndRemoveItem, items*/ 10) {
    				each_value = /*items*/ ctx[1];
    				validate_each_argument(each_value);
    				validate_each_keys(ctx, each_value, get_each_context$5, get_key);
    				each_blocks = update_keyed_each(each_blocks, dirty, get_key, 1, ctx, each_value, each_1_lookup, each_1_anchor.parentNode, destroy_block, create_each_block$5, each_1_anchor, get_each_context$5);
    			}
    		},
    		d: function destroy(detaching) {
    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].d(detaching);
    			}

    			if (detaching) detach_dev(each_1_anchor);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_else_block.name,
    		type: "else",
    		source: "(26:0) {:else}",
    		ctx
    	});

    	return block;
    }

    // (24:0) {#if items.length === 0}
    function create_if_block$2(ctx) {
    	let p;

    	const block = {
    		c: function create() {
    			p = element("p");
    			p.textContent = "All items have been copied! (or none entered yet)";
    			add_location(p, file$8, 24, 4, 732);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, p, anchor);
    		},
    		p: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(p);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$2.name,
    		type: "if",
    		source: "(24:0) {#if items.length === 0}",
    		ctx
    	});

    	return block;
    }

    // (27:4) {#each items as item (item.id)}
    function create_each_block$5(key_1, ctx) {
    	let button;
    	let t0_value = /*item*/ ctx[6].text + "";
    	let t0;
    	let t1;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[5](/*item*/ ctx[6]);
    	}

    	const block = {
    		key: key_1,
    		first: null,
    		c: function create() {
    			button = element("button");
    			t0 = text(t0_value);
    			t1 = space();
    			attr_dev(button, "class", "item svelte-13m3fab");
    			add_location(button, file$8, 27, 8, 844);
    			this.first = button;
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t0);
    			append_dev(button, t1);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty & /*items*/ 2 && t0_value !== (t0_value = /*item*/ ctx[6].text + "")) set_data_dev(t0, t0_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$5.name,
    		type: "each",
    		source: "(27:4) {#each items as item (item.id)}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$8(ctx) {
    	let h1;
    	let t1;
    	let textarea;
    	let t2;
    	let if_block_anchor;
    	let mounted;
    	let dispose;

    	function select_block_type(ctx, dirty) {
    		if (/*items*/ ctx[1].length === 0) return create_if_block$2;
    		return create_else_block;
    	}

    	let current_block_type = select_block_type(ctx);
    	let if_block = current_block_type(ctx);

    	const block = {
    		c: function create() {
    			h1 = element("h1");
    			h1.textContent = "Copy items for prompts by clicking buttons below";
    			t1 = space();
    			textarea = element("textarea");
    			t2 = space();
    			if_block.c();
    			if_block_anchor = empty();
    			add_location(h1, file$8, 19, 0, 537);
    			attr_dev(textarea, "placeholder", "Enter text here...");
    			attr_dev(textarea, "class", "svelte-13m3fab");
    			add_location(textarea, file$8, 21, 0, 598);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h1, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, textarea, anchor);
    			set_input_value(textarea, /*textInput*/ ctx[0]);
    			insert_dev(target, t2, anchor);
    			if_block.m(target, anchor);
    			insert_dev(target, if_block_anchor, anchor);

    			if (!mounted) {
    				dispose = [
    					listen_dev(textarea, "input", /*textarea_input_handler*/ ctx[4]),
    					listen_dev(textarea, "input", /*updateItems*/ ctx[2], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*textInput*/ 1) {
    				set_input_value(textarea, /*textInput*/ ctx[0]);
    			}

    			if (current_block_type === (current_block_type = select_block_type(ctx)) && if_block) {
    				if_block.p(ctx, dirty);
    			} else {
    				if_block.d(1);
    				if_block = current_block_type(ctx);

    				if (if_block) {
    					if_block.c();
    					if_block.m(if_block_anchor.parentNode, if_block_anchor);
    				}
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h1);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(textarea);
    			if (detaching) detach_dev(t2);
    			if_block.d(detaching);
    			if (detaching) detach_dev(if_block_anchor);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$8.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$8($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('CopyandRemoveListComponent', slots, []);
    	let textInput = '';
    	let items = [];

    	function updateItems() {
    		$$invalidate(1, items = textInput.split('\n').filter(line => line.trim() !== '').map((line, index) => ({ id: index + line, text: line })));
    	}

    	async function copyAndRemoveItem(item) {
    		try {
    			await navigator.clipboard.writeText(item.text);
    			$$invalidate(1, items = items.filter(i => i.id !== item.id));
    		} catch(err) {
    			console.error('Failed to copy text: ', err);
    		}
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$3.warn(`<CopyandRemoveListComponent> was created with unknown prop '${key}'`);
    	});

    	function textarea_input_handler() {
    		textInput = this.value;
    		$$invalidate(0, textInput);
    	}

    	const click_handler = item => copyAndRemoveItem(item);

    	$$self.$capture_state = () => ({
    		textInput,
    		items,
    		updateItems,
    		copyAndRemoveItem
    	});

    	$$self.$inject_state = $$props => {
    		if ('textInput' in $$props) $$invalidate(0, textInput = $$props.textInput);
    		if ('items' in $$props) $$invalidate(1, items = $$props.items);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		textInput,
    		items,
    		updateItems,
    		copyAndRemoveItem,
    		textarea_input_handler,
    		click_handler
    	];
    }

    class CopyandRemoveListComponent extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$8, create_fragment$8, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "CopyandRemoveListComponent",
    			options,
    			id: create_fragment$8.name
    		});
    	}
    }

    /* src\ReadingStateCounter.svelte generated by Svelte v3.59.2 */

    const file$7 = "src\\ReadingStateCounter.svelte";

    function get_each_context$4(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[8] = list[i];
    	child_ctx[10] = i;
    	return child_ctx;
    }

    // (67:4) {#each words as wordObj, index (index)}
    function create_each_block$4(key_1, ctx) {
    	let button;
    	let t0_value = /*wordObj*/ ctx[8].word + "";
    	let t0;
    	let t1;
    	let t2_value = /*wordObj*/ ctx[8].count + "";
    	let t2;
    	let t3;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[7](/*index*/ ctx[10]);
    	}

    	const block = {
    		key: key_1,
    		first: null,
    		c: function create() {
    			button = element("button");
    			t0 = text(t0_value);
    			t1 = text(" (");
    			t2 = text(t2_value);
    			t3 = text(")\r\n        ");
    			attr_dev(button, "class", "word-button svelte-13vjncp");
    			set_style(button, "background-color", getColor(/*wordObj*/ ctx[8].count));
    			add_location(button, file$7, 67, 8, 1994);
    			this.first = button;
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t0);
    			append_dev(button, t1);
    			append_dev(button, t2);
    			append_dev(button, t3);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty & /*words*/ 2 && t0_value !== (t0_value = /*wordObj*/ ctx[8].word + "")) set_data_dev(t0, t0_value);
    			if (dirty & /*words*/ 2 && t2_value !== (t2_value = /*wordObj*/ ctx[8].count + "")) set_data_dev(t2, t2_value);

    			if (dirty & /*words*/ 2) {
    				set_style(button, "background-color", getColor(/*wordObj*/ ctx[8].count));
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$4.name,
    		type: "each",
    		source: "(67:4) {#each words as wordObj, index (index)}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$7(ctx) {
    	let div0;
    	let h1;
    	let t1;
    	let input0;
    	let t2;
    	let button0;
    	let t4;
    	let button1;
    	let t6;
    	let input1;
    	let t7;
    	let div1;
    	let each_blocks = [];
    	let each_1_lookup = new Map();
    	let mounted;
    	let dispose;
    	let each_value = /*words*/ ctx[1];
    	validate_each_argument(each_value);
    	const get_key = ctx => /*index*/ ctx[10];
    	validate_each_keys(ctx, each_value, get_each_context$4, get_key);

    	for (let i = 0; i < each_value.length; i += 1) {
    		let child_ctx = get_each_context$4(ctx, each_value, i);
    		let key = get_key(child_ctx);
    		each_1_lookup.set(key, each_blocks[i] = create_each_block$4(key, child_ctx));
    	}

    	const block = {
    		c: function create() {
    			div0 = element("div");
    			h1 = element("h1");
    			h1.textContent = "Stateful Reader Brainstorm";
    			t1 = space();
    			input0 = element("input");
    			t2 = space();
    			button0 = element("button");
    			button0.textContent = "Submit Text";
    			t4 = space();
    			button1 = element("button");
    			button1.textContent = "Export to JSON";
    			t6 = space();
    			input1 = element("input");
    			t7 = space();
    			div1 = element("div");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h1, file$7, 57, 4, 1576);
    			attr_dev(input0, "type", "text");
    			attr_dev(input0, "placeholder", "Enter text here");
    			attr_dev(input0, "class", "svelte-13vjncp");
    			add_location(input0, file$7, 58, 4, 1617);
    			attr_dev(button0, "class", "svelte-13vjncp");
    			add_location(button0, file$7, 59, 4, 1696);
    			attr_dev(button1, "class", "svelte-13vjncp");
    			add_location(button1, file$7, 60, 4, 1752);
    			attr_dev(input1, "type", "file");
    			attr_dev(input1, "class", "svelte-13vjncp");
    			add_location(input1, file$7, 61, 4, 1813);
    			add_location(div0, file$7, 56, 0, 1565);
    			add_location(div1, file$7, 64, 0, 1873);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div0, anchor);
    			append_dev(div0, h1);
    			append_dev(div0, t1);
    			append_dev(div0, input0);
    			set_input_value(input0, /*inputText*/ ctx[0]);
    			append_dev(div0, t2);
    			append_dev(div0, button0);
    			append_dev(div0, t4);
    			append_dev(div0, button1);
    			append_dev(div0, t6);
    			append_dev(div0, input1);
    			insert_dev(target, t7, anchor);
    			insert_dev(target, div1, anchor);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div1, null);
    				}
    			}

    			if (!mounted) {
    				dispose = [
    					listen_dev(input0, "input", /*input0_input_handler*/ ctx[6]),
    					listen_dev(button0, "click", /*submitText*/ ctx[2], false, false, false, false),
    					listen_dev(button1, "click", /*exportToJson*/ ctx[4], false, false, false, false),
    					listen_dev(input1, "change", /*importFromJson*/ ctx[5], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*inputText*/ 1 && input0.value !== /*inputText*/ ctx[0]) {
    				set_input_value(input0, /*inputText*/ ctx[0]);
    			}

    			if (dirty & /*getColor, words, handleClick*/ 10) {
    				each_value = /*words*/ ctx[1];
    				validate_each_argument(each_value);
    				validate_each_keys(ctx, each_value, get_each_context$4, get_key);
    				each_blocks = update_keyed_each(each_blocks, dirty, get_key, 1, ctx, each_value, each_1_lookup, div1, destroy_block, create_each_block$4, null, get_each_context$4);
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div0);
    			if (detaching) detach_dev(t7);
    			if (detaching) detach_dev(div1);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].d();
    			}

    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$7.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function getColor(count) {
    	const colors = [
    		'#1a1a1a',
    		'#333333',
    		'#4d4d4d',
    		'#666666',
    		'#808080',
    		'#999999',
    		'#b3b3b3',
    		'#cccccc',
    		'#e6e6e6',
    		'#ffffff'
    	];

    	return colors[Math.min(Math.floor(count / 10), 9)];
    }

    function instance$7($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('ReadingStateCounter', slots, []);
    	let inputText = "";
    	let words = [];

    	function submitText() {
    		$$invalidate(1, words = inputText.split(/\s+/).map(word => ({ word, count: 0 })));
    	}

    	function handleClick(index) {
    		$$invalidate(1, words[index].count += 1, words);
    		$$invalidate(1, words = [...words]); // Ensures Svelte detects the change
    	}

    	// Function to export data to JSON
    	function exportToJson() {
    		const jsonData = JSON.stringify(words);
    		const blob = new Blob([jsonData], { type: "application/json" });
    		const url = URL.createObjectURL(blob);
    		const a = document.createElement('a');
    		a.href = url;
    		a.download = 'statefulwords.json';
    		a.click();
    		URL.revokeObjectURL(url);
    	}

    	// Function to handle file import
    	function importFromJson(event) {
    		const file = event.target.files[0];

    		if (file) {
    			const reader = new FileReader();

    			reader.onload = e => {
    				const json = e.target.result;
    				$$invalidate(1, words = JSON.parse(json));
    			};

    			reader.readAsText(file);
    		}
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<ReadingStateCounter> was created with unknown prop '${key}'`);
    	});

    	function input0_input_handler() {
    		inputText = this.value;
    		$$invalidate(0, inputText);
    	}

    	const click_handler = index => handleClick(index);

    	$$self.$capture_state = () => ({
    		inputText,
    		words,
    		submitText,
    		handleClick,
    		getColor,
    		exportToJson,
    		importFromJson
    	});

    	$$self.$inject_state = $$props => {
    		if ('inputText' in $$props) $$invalidate(0, inputText = $$props.inputText);
    		if ('words' in $$props) $$invalidate(1, words = $$props.words);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		inputText,
    		words,
    		submitText,
    		handleClick,
    		exportToJson,
    		importFromJson,
    		input0_input_handler,
    		click_handler
    	];
    }

    class ReadingStateCounter extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$7, create_fragment$7, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "ReadingStateCounter",
    			options,
    			id: create_fragment$7.name
    		});
    	}
    }

    /* src\DeliberateSubconciousRepititionPractice.svelte generated by Svelte v3.59.2 */

    const { Object: Object_1$1, console: console_1$2 } = globals;
    const file$6 = "src\\DeliberateSubconciousRepititionPractice.svelte";

    // (156:0) {#if selectedItem}
    function create_if_block_1(ctx) {
    	let div;
    	let strong0;
    	let t1;
    	let t2_value = /*selectedItem*/ ctx[1].text + "";
    	let t2;
    	let t3;
    	let strong1;
    	let t5;
    	let t6_value = /*counts*/ ctx[2][/*selectedItem*/ ctx[1].id] + "";
    	let t6;

    	const block = {
    		c: function create() {
    			div = element("div");
    			strong0 = element("strong");
    			strong0.textContent = "Current Word:";
    			t1 = space();
    			t2 = text(t2_value);
    			t3 = space();
    			strong1 = element("strong");
    			strong1.textContent = "Count:";
    			t5 = space();
    			t6 = text(t6_value);
    			add_location(strong0, file$6, 157, 8, 5744);
    			add_location(strong1, file$6, 158, 8, 5805);
    			add_location(div, file$6, 156, 4, 5729);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, strong0);
    			append_dev(div, t1);
    			append_dev(div, t2);
    			append_dev(div, t3);
    			append_dev(div, strong1);
    			append_dev(div, t5);
    			append_dev(div, t6);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*selectedItem*/ 2 && t2_value !== (t2_value = /*selectedItem*/ ctx[1].text + "")) set_data_dev(t2, t2_value);
    			if (dirty & /*counts, selectedItem*/ 6 && t6_value !== (t6_value = /*counts*/ ctx[2][/*selectedItem*/ ctx[1].id] + "")) set_data_dev(t6, t6_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block_1.name,
    		type: "if",
    		source: "(156:0) {#if selectedItem}",
    		ctx
    	});

    	return block;
    }

    // (163:0) {#if allWordsLimitReached}
    function create_if_block$1(ctx) {
    	let div;

    	const block = {
    		c: function create() {
    			div = element("div");
    			div.textContent = "All words have reached the count limit.";
    			attr_dev(div, "class", "alert svelte-fb2ql8");
    			add_location(div, file$6, 163, 4, 5910);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block$1.name,
    		type: "if",
    		source: "(163:0) {#if allWordsLimitReached}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$6(ctx) {
    	let h1;
    	let t1;
    	let input0;
    	let t2;
    	let button0;
    	let t4;
    	let br;
    	let t5;
    	let textarea0;
    	let t6;
    	let hr0;
    	let t7;
    	let div;
    	let label;
    	let t9;
    	let input1;
    	let t10;
    	let t11;
    	let t12;
    	let button1;
    	let t14;
    	let button2;
    	let t16;
    	let hr1;
    	let t17;
    	let button3;
    	let t19;
    	let textarea1;
    	let mounted;
    	let dispose;
    	let if_block0 = /*selectedItem*/ ctx[1] && create_if_block_1(ctx);
    	let if_block1 = /*allWordsLimitReached*/ ctx[4] && create_if_block$1(ctx);

    	const block = {
    		c: function create() {
    			h1 = element("h1");
    			h1.textContent = "Random Word till appearance count reached for TTS";
    			t1 = space();
    			input0 = element("input");
    			t2 = space();
    			button0 = element("button");
    			button0.textContent = "Export Counts";
    			t4 = space();
    			br = element("br");
    			t5 = space();
    			textarea0 = element("textarea");
    			t6 = space();
    			hr0 = element("hr");
    			t7 = space();
    			div = element("div");
    			label = element("label");
    			label.textContent = "Total Count Limit:";
    			t9 = space();
    			input1 = element("input");
    			t10 = space();
    			if (if_block0) if_block0.c();
    			t11 = space();
    			if (if_block1) if_block1.c();
    			t12 = space();
    			button1 = element("button");
    			button1.textContent = "Start";
    			t14 = space();
    			button2 = element("button");
    			button2.textContent = "Stop";
    			t16 = space();
    			hr1 = element("hr");
    			t17 = space();
    			button3 = element("button");
    			button3.textContent = "Simulate one hour or limit Counts";
    			t19 = space();
    			textarea1 = element("textarea");
    			add_location(h1, file$6, 141, 0, 5255);
    			attr_dev(input0, "type", "file");
    			add_location(input0, file$6, 143, 0, 5317);
    			add_location(button0, file$6, 144, 0, 5365);
    			add_location(br, file$6, 145, 0, 5421);
    			attr_dev(textarea0, "placeholder", "Enter text here...");
    			add_location(textarea0, file$6, 146, 0, 5427);
    			add_location(hr0, file$6, 148, 0, 5531);
    			attr_dev(label, "for", "totalCountLimit");
    			add_location(label, file$6, 151, 4, 5550);
    			attr_dev(input1, "type", "number");
    			attr_dev(input1, "min", "1");
    			attr_dev(input1, "id", "totalCountLimit");
    			add_location(input1, file$6, 152, 4, 5612);
    			add_location(div, file$6, 150, 0, 5539);
    			add_location(button1, file$6, 168, 0, 6001);
    			add_location(button2, file$6, 169, 0, 6042);
    			add_location(hr1, file$6, 171, 0, 6083);
    			add_location(button3, file$6, 173, 0, 6091);
    			textarea1.readOnly = true;
    			attr_dev(textarea1, "placeholder", "Simulation result will be shown here...");
    			add_location(textarea1, file$6, 174, 0, 6168);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h1, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, input0, anchor);
    			insert_dev(target, t2, anchor);
    			insert_dev(target, button0, anchor);
    			insert_dev(target, t4, anchor);
    			insert_dev(target, br, anchor);
    			insert_dev(target, t5, anchor);
    			insert_dev(target, textarea0, anchor);
    			set_input_value(textarea0, /*textInput*/ ctx[0]);
    			insert_dev(target, t6, anchor);
    			insert_dev(target, hr0, anchor);
    			insert_dev(target, t7, anchor);
    			insert_dev(target, div, anchor);
    			append_dev(div, label);
    			append_dev(div, t9);
    			append_dev(div, input1);
    			set_input_value(input1, /*totalCountLimit*/ ctx[3]);
    			insert_dev(target, t10, anchor);
    			if (if_block0) if_block0.m(target, anchor);
    			insert_dev(target, t11, anchor);
    			if (if_block1) if_block1.m(target, anchor);
    			insert_dev(target, t12, anchor);
    			insert_dev(target, button1, anchor);
    			insert_dev(target, t14, anchor);
    			insert_dev(target, button2, anchor);
    			insert_dev(target, t16, anchor);
    			insert_dev(target, hr1, anchor);
    			insert_dev(target, t17, anchor);
    			insert_dev(target, button3, anchor);
    			insert_dev(target, t19, anchor);
    			insert_dev(target, textarea1, anchor);
    			set_input_value(textarea1, /*simulationResult*/ ctx[5]);

    			if (!mounted) {
    				dispose = [
    					listen_dev(input0, "change", /*importCounts*/ ctx[10], false, false, false, false),
    					listen_dev(button0, "click", /*exportCounts*/ ctx[9], false, false, false, false),
    					listen_dev(textarea0, "input", /*textarea0_input_handler*/ ctx[12]),
    					listen_dev(textarea0, "input", /*updateItems*/ ctx[6], false, false, false, false),
    					listen_dev(input1, "input", /*input1_input_handler*/ ctx[13]),
    					listen_dev(button1, "click", /*start*/ ctx[7], false, false, false, false),
    					listen_dev(button2, "click", /*stop*/ ctx[8], false, false, false, false),
    					listen_dev(button3, "click", /*simulateCount*/ ctx[11], false, false, false, false),
    					listen_dev(textarea1, "input", /*textarea1_input_handler*/ ctx[14])
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*textInput*/ 1) {
    				set_input_value(textarea0, /*textInput*/ ctx[0]);
    			}

    			if (dirty & /*totalCountLimit*/ 8 && to_number(input1.value) !== /*totalCountLimit*/ ctx[3]) {
    				set_input_value(input1, /*totalCountLimit*/ ctx[3]);
    			}

    			if (/*selectedItem*/ ctx[1]) {
    				if (if_block0) {
    					if_block0.p(ctx, dirty);
    				} else {
    					if_block0 = create_if_block_1(ctx);
    					if_block0.c();
    					if_block0.m(t11.parentNode, t11);
    				}
    			} else if (if_block0) {
    				if_block0.d(1);
    				if_block0 = null;
    			}

    			if (/*allWordsLimitReached*/ ctx[4]) {
    				if (if_block1) ; else {
    					if_block1 = create_if_block$1(ctx);
    					if_block1.c();
    					if_block1.m(t12.parentNode, t12);
    				}
    			} else if (if_block1) {
    				if_block1.d(1);
    				if_block1 = null;
    			}

    			if (dirty & /*simulationResult*/ 32) {
    				set_input_value(textarea1, /*simulationResult*/ ctx[5]);
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h1);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(input0);
    			if (detaching) detach_dev(t2);
    			if (detaching) detach_dev(button0);
    			if (detaching) detach_dev(t4);
    			if (detaching) detach_dev(br);
    			if (detaching) detach_dev(t5);
    			if (detaching) detach_dev(textarea0);
    			if (detaching) detach_dev(t6);
    			if (detaching) detach_dev(hr0);
    			if (detaching) detach_dev(t7);
    			if (detaching) detach_dev(div);
    			if (detaching) detach_dev(t10);
    			if (if_block0) if_block0.d(detaching);
    			if (detaching) detach_dev(t11);
    			if (if_block1) if_block1.d(detaching);
    			if (detaching) detach_dev(t12);
    			if (detaching) detach_dev(button1);
    			if (detaching) detach_dev(t14);
    			if (detaching) detach_dev(button2);
    			if (detaching) detach_dev(t16);
    			if (detaching) detach_dev(hr1);
    			if (detaching) detach_dev(t17);
    			if (detaching) detach_dev(button3);
    			if (detaching) detach_dev(t19);
    			if (detaching) detach_dev(textarea1);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$6.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$6($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('DeliberateSubconciousRepititionPractice', slots, []);
    	let textInput = '';
    	let items = [];
    	let running = false;
    	let selectedItem = null;
    	let intervalId = null;
    	let counts = {};
    	let totalCountLimit = 10; // Default limit, can be changed by the user
    	let allWordsLimitReached = false;
    	let simulationResult = ''; // Variable to hold the result of the simulation

    	function updateItems() {
    		items = textInput.split(/\W+/).filter(word => word.trim() !== '').map(word => ({ id: word, text: word })); // Use word itself as the ID
    		$$invalidate(2, counts = items.reduce((acc, item) => ({ ...acc, [item.id]: 0 }), {}));
    	}

    	function start() {
    		if (!running && items.length > 0) {
    			running = true;

    			intervalId = setInterval(
    				() => {
    					// Filter out items that have reached the totalCountLimit
    					const eligibleItems = items.filter(item => counts[item.id] < totalCountLimit);

    					// If there are no eligible items left, stop the timer
    					if (eligibleItems.length === 0) {
    						stop();
    						$$invalidate(4, allWordsLimitReached = true); // Set when all words reach the limit
    						return;
    					}

    					// Select a random item from the eligible items
    					const randomIndex = Math.floor(Math.random() * eligibleItems.length);

    					$$invalidate(1, selectedItem = eligibleItems[randomIndex]);
    					$$invalidate(2, counts[selectedItem.id]++, counts);
    				},
    				1000
    			);
    		}
    	}

    	function stop() {
    		if (running) {
    			clearInterval(intervalId);
    			running = false;
    			intervalId = null;
    		}
    	}

    	function exportCounts() {
    		const dataStr = JSON.stringify(counts);
    		const blob = new Blob([dataStr], { type: "application/json" });
    		const url = URL.createObjectURL(blob);
    		const link = document.createElement("a");
    		link.download = "counts.json";
    		link.href = url;
    		link.click();
    	}

    	function importCounts(event) {
    		const fileReader = new FileReader();

    		fileReader.onload = e => {
    			const data = JSON.parse(e.target.result);
    			$$invalidate(2, counts = { ...counts, ...data });

    			items = Object.keys(data).map((word, index) => ({
    				id: word, // Use word itself as the ID
    				text: word
    			}));

    			// Ensure existing items are updated if they are not in the imported data
    			items.forEach(item => {
    				if (!counts[item.id]) {
    					$$invalidate(2, counts[item.id] = 0, counts);
    				}
    			});
    		};

    		fileReader.readAsText(event.target.files[0]);
    	}

    	// ... (other variables and functions remain unchanged)
    	function simulateCount() {
    		let simulatedTime = 0;
    		let maxSimulatedSeconds = 3600; // 3600 seconds = 1 hour
    		let simulationOutput = ""; // Accumulate output here

    		// Reset the allWordsLimitReached flag and simulationResult
    		$$invalidate(4, allWordsLimitReached = false);

    		$$invalidate(5, simulationResult = '');

    		// Simulate until max time is reached or all words hit the limit
    		while (simulatedTime < maxSimulatedSeconds && !allWordsLimitReached) {
    			const eligibleItems = items.filter(item => counts[item.id] < totalCountLimit);

    			if (eligibleItems.length === 0) {
    				$$invalidate(4, allWordsLimitReached = true); // Set when all words reach the limit
    				break; // Exit the loop if all words hit the limit
    			}

    			// Select a random item and increment its count
    			const randomIndex = Math.floor(Math.random() * eligibleItems.length);

    			$$invalidate(1, selectedItem = eligibleItems[randomIndex]);
    			$$invalidate(2, counts[selectedItem.id]++, counts);
    			simulationOutput += selectedItem.text + " "; // Append selected word to output

    			// Increment simulated time (equivalent to the time between iterations in the real scenario)
    			simulatedTime++;
    		}

    		// Update simulationResult with a message
    		if (allWordsLimitReached) {
    			$$invalidate(5, simulationResult = "All words have reached the count limit during simulation.");
    		} else {
    			$$invalidate(5, simulationResult = `Simulation finished after ${simulatedTime} seconds.`);
    		}

    		// Export the simulation output to a text file
    		exportSimulationOutput(simulationOutput);
    	}

    	function exportSimulationOutput(output) {
    		if (output) {
    			const blob = new Blob([output], { type: "text/plain" });
    			const url = URL.createObjectURL(blob);
    			const link = document.createElement("a");
    			link.download = "simulation_output.txt";
    			link.href = url;
    			link.click();
    		} else {
    			console.error("No simulation output to export.");
    			$$invalidate(5, simulationResult = "No simulation output to export.");
    		}
    	}

    	onDestroy(() => {
    		if (intervalId) {
    			clearInterval(intervalId);
    		}
    	});

    	const writable_props = [];

    	Object_1$1.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$2.warn(`<DeliberateSubconciousRepititionPractice> was created with unknown prop '${key}'`);
    	});

    	function textarea0_input_handler() {
    		textInput = this.value;
    		$$invalidate(0, textInput);
    	}

    	function input1_input_handler() {
    		totalCountLimit = to_number(this.value);
    		$$invalidate(3, totalCountLimit);
    	}

    	function textarea1_input_handler() {
    		simulationResult = this.value;
    		$$invalidate(5, simulationResult);
    	}

    	$$self.$capture_state = () => ({
    		onDestroy,
    		textInput,
    		items,
    		running,
    		selectedItem,
    		intervalId,
    		counts,
    		totalCountLimit,
    		allWordsLimitReached,
    		simulationResult,
    		updateItems,
    		start,
    		stop,
    		exportCounts,
    		importCounts,
    		simulateCount,
    		exportSimulationOutput
    	});

    	$$self.$inject_state = $$props => {
    		if ('textInput' in $$props) $$invalidate(0, textInput = $$props.textInput);
    		if ('items' in $$props) items = $$props.items;
    		if ('running' in $$props) running = $$props.running;
    		if ('selectedItem' in $$props) $$invalidate(1, selectedItem = $$props.selectedItem);
    		if ('intervalId' in $$props) intervalId = $$props.intervalId;
    		if ('counts' in $$props) $$invalidate(2, counts = $$props.counts);
    		if ('totalCountLimit' in $$props) $$invalidate(3, totalCountLimit = $$props.totalCountLimit);
    		if ('allWordsLimitReached' in $$props) $$invalidate(4, allWordsLimitReached = $$props.allWordsLimitReached);
    		if ('simulationResult' in $$props) $$invalidate(5, simulationResult = $$props.simulationResult);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		textInput,
    		selectedItem,
    		counts,
    		totalCountLimit,
    		allWordsLimitReached,
    		simulationResult,
    		updateItems,
    		start,
    		stop,
    		exportCounts,
    		importCounts,
    		simulateCount,
    		textarea0_input_handler,
    		input1_input_handler,
    		textarea1_input_handler
    	];
    }

    class DeliberateSubconciousRepititionPractice extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$6, create_fragment$6, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "DeliberateSubconciousRepititionPractice",
    			options,
    			id: create_fragment$6.name
    		});
    	}
    }

    /* src\LLMWorkflowTest.svelte generated by Svelte v3.59.2 */

    const { Object: Object_1, console: console_1$1 } = globals;
    const file$5 = "src\\LLMWorkflowTest.svelte";

    function get_each_context$3(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[10] = list[i];
    	child_ctx[11] = list;
    	child_ctx[12] = i;
    	return child_ctx;
    }

    function get_each_context_1$2(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[13] = list[i];
    	return child_ctx;
    }

    // (87:4) {#each Object.keys(workflows) as workflow}
    function create_each_block_1$2(ctx) {
    	let option;
    	let t_value = /*workflow*/ ctx[13] + "";
    	let t;

    	const block = {
    		c: function create() {
    			option = element("option");
    			t = text(t_value);
    			option.__value = /*workflow*/ ctx[13];
    			option.value = option.__value;
    			add_location(option, file$5, 87, 6, 2693);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, option, anchor);
    			append_dev(option, t);
    		},
    		p: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(option);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$2.name,
    		type: "each",
    		source: "(87:4) {#each Object.keys(workflows) as workflow}",
    		ctx
    	});

    	return block;
    }

    // (92:2) {#each placeholderInputs as placeholder}
    function create_each_block$3(ctx) {
    	let div;
    	let label;
    	let t0;
    	let t1_value = /*placeholder*/ ctx[10] + "";
    	let t1;
    	let t2;
    	let t3;
    	let input;
    	let mounted;
    	let dispose;

    	function input_input_handler() {
    		/*input_input_handler*/ ctx[8].call(input, /*placeholder*/ ctx[10]);
    	}

    	const block = {
    		c: function create() {
    			div = element("div");
    			label = element("label");
    			t0 = text("Enter word for <");
    			t1 = text(t1_value);
    			t2 = text(">");
    			t3 = space();
    			input = element("input");
    			add_location(label, file$5, 93, 6, 2828);
    			attr_dev(input, "type", "text");
    			add_location(input, file$5, 94, 6, 2887);
    			add_location(div, file$5, 92, 4, 2815);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, label);
    			append_dev(label, t0);
    			append_dev(label, t1);
    			append_dev(label, t2);
    			append_dev(div, t3);
    			append_dev(div, input);
    			set_input_value(input, /*placeholderValues*/ ctx[1][/*placeholder*/ ctx[10]]);

    			if (!mounted) {
    				dispose = [
    					listen_dev(input, "input", input_input_handler),
    					listen_dev(input, "input", /*updateInputs*/ ctx[6], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty & /*placeholderInputs*/ 4 && t1_value !== (t1_value = /*placeholder*/ ctx[10] + "")) set_data_dev(t1, t1_value);

    			if (dirty & /*placeholderValues, placeholderInputs*/ 6 && input.value !== /*placeholderValues*/ ctx[1][/*placeholder*/ ctx[10]]) {
    				set_input_value(input, /*placeholderValues*/ ctx[1][/*placeholder*/ ctx[10]]);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$3.name,
    		type: "each",
    		source: "(92:2) {#each placeholderInputs as placeholder}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$5(ctx) {
    	let div1;
    	let h1;
    	let t1;
    	let select;
    	let t2;
    	let t3;
    	let div0;
    	let t4;
    	let button;
    	let mounted;
    	let dispose;
    	let each_value_1 = Object.keys(/*workflows*/ ctx[3]);
    	validate_each_argument(each_value_1);
    	let each_blocks_1 = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks_1[i] = create_each_block_1$2(get_each_context_1$2(ctx, each_value_1, i));
    	}

    	let each_value = /*placeholderInputs*/ ctx[2];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$3(get_each_context$3(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			div1 = element("div");
    			h1 = element("h1");
    			h1.textContent = "Incompelete Workflow Interface";
    			t1 = space();
    			select = element("select");

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				each_blocks_1[i].c();
    			}

    			t2 = space();

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t3 = space();
    			div0 = element("div");
    			t4 = space();
    			button = element("button");
    			button.textContent = "Submit";
    			add_location(h1, file$5, 84, 2, 2523);
    			if (/*selectedWorkflow*/ ctx[0] === void 0) add_render_callback(() => /*select_change_handler*/ ctx[7].call(select));
    			add_location(select, file$5, 85, 2, 2566);
    			attr_dev(div0, "id", "input-group");
    			add_location(div0, file$5, 102, 2, 3039);
    			add_location(button, file$5, 104, 2, 3073);
    			add_location(div1, file$5, 83, 0, 2514);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div1, anchor);
    			append_dev(div1, h1);
    			append_dev(div1, t1);
    			append_dev(div1, select);

    			for (let i = 0; i < each_blocks_1.length; i += 1) {
    				if (each_blocks_1[i]) {
    					each_blocks_1[i].m(select, null);
    				}
    			}

    			select_option(select, /*selectedWorkflow*/ ctx[0], true);
    			append_dev(div1, t2);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div1, null);
    				}
    			}

    			append_dev(div1, t3);
    			append_dev(div1, div0);
    			append_dev(div1, t4);
    			append_dev(div1, button);

    			if (!mounted) {
    				dispose = [
    					listen_dev(select, "change", /*select_change_handler*/ ctx[7]),
    					listen_dev(select, "change", /*handleWorkflowChange*/ ctx[4], false, false, false, false),
    					listen_dev(button, "click", /*processInputs*/ ctx[5], false, false, false, false)
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*Object, workflows*/ 8) {
    				each_value_1 = Object.keys(/*workflows*/ ctx[3]);
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$2(ctx, each_value_1, i);

    					if (each_blocks_1[i]) {
    						each_blocks_1[i].p(child_ctx, dirty);
    					} else {
    						each_blocks_1[i] = create_each_block_1$2(child_ctx);
    						each_blocks_1[i].c();
    						each_blocks_1[i].m(select, null);
    					}
    				}

    				for (; i < each_blocks_1.length; i += 1) {
    					each_blocks_1[i].d(1);
    				}

    				each_blocks_1.length = each_value_1.length;
    			}

    			if (dirty & /*selectedWorkflow, Object, workflows*/ 9) {
    				select_option(select, /*selectedWorkflow*/ ctx[0]);
    			}

    			if (dirty & /*placeholderValues, placeholderInputs, updateInputs*/ 70) {
    				each_value = /*placeholderInputs*/ ctx[2];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$3(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$3(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(div1, t3);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div1);
    			destroy_each(each_blocks_1, detaching);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$5.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$5($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('LLMWorkflowTest', slots, []);

    	let workflows = {
    		"Merged Spelling": {
    			steps: [
    				"Please make an image description the meaning of the word <word1>",
    				"next please find english words close in spelling to <word2>",
    				"great, next make an image description using those words",
    				"Thanks lets now merge the two seperate image descriptions together"
    			],
    			placeholders: { "<word1>": "much", "<word2>": "henduo" },
    			timeline: [[], 1, [1], [0, 2]]
    		},
    		"Another Workflow": {
    			steps: [
    				"Do something with <placeholder1>",
    				"Then do something else with <placeholder2>"
    			],
    			placeholders: {
    				"<placeholder1>": "value1",
    				"<placeholder2>": "value2"
    			},
    			timeline: [[], 1]
    		}
    	};

    	let selectedWorkflow = "Merged Spelling";
    	let placeholderValues = workflows[selectedWorkflow].placeholders;
    	let placeholderInputs = Object.keys(placeholderValues);
    	let timeline = workflows[selectedWorkflow].timeline;

    	function handleWorkflowChange() {
    		$$invalidate(1, placeholderValues = workflows[selectedWorkflow].placeholders);
    		$$invalidate(2, placeholderInputs = Object.keys(placeholderValues));
    		timeline = workflows[selectedWorkflow].timeline;
    		updateInputs();
    	}

    	function processInputs() {
    		const inputs = document.querySelectorAll('input[type="text"]');
    		console.log(`Workflow: ${selectedWorkflow}`);

    		inputs.forEach((input, i) => {
    			console.log(`Step ${i + 1}: ${input.value}`);
    		});
    	}

    	onMount(() => {
    		handleWorkflowChange();
    		updateInputs();
    	});

    	function updateInputs() {
    		const inputGroup = document.getElementById('input-group');
    		inputGroup.innerHTML = '';
    		const steps = workflows[selectedWorkflow].steps;

    		steps.forEach((step, i) => {
    			const label = placeholderInputs.reduce((updatedStep, placeholder) => updatedStep.replace(new RegExp(placeholder, 'g'), placeholderValues[placeholder]), step);

    			const dependencyText = Array.isArray(timeline[i])
    			? timeline[i].join(', ')
    			: timeline[i];

    			const inputBox = `
        <div>
          <label>${label}</label>
          <input type="text" />
          ${timeline[i].length > 0
			? `<span>Output depends on: ${dependencyText}</span>`
			: ''}
        </div>
      `;

    			inputGroup.innerHTML += inputBox;
    		});
    	}

    	const writable_props = [];

    	Object_1.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1$1.warn(`<LLMWorkflowTest> was created with unknown prop '${key}'`);
    	});

    	function select_change_handler() {
    		selectedWorkflow = select_value(this);
    		$$invalidate(0, selectedWorkflow);
    		$$invalidate(3, workflows);
    	}

    	function input_input_handler(placeholder) {
    		placeholderValues[placeholder] = this.value;
    		$$invalidate(1, placeholderValues);
    	}

    	$$self.$capture_state = () => ({
    		onMount,
    		workflows,
    		selectedWorkflow,
    		placeholderValues,
    		placeholderInputs,
    		timeline,
    		handleWorkflowChange,
    		processInputs,
    		updateInputs
    	});

    	$$self.$inject_state = $$props => {
    		if ('workflows' in $$props) $$invalidate(3, workflows = $$props.workflows);
    		if ('selectedWorkflow' in $$props) $$invalidate(0, selectedWorkflow = $$props.selectedWorkflow);
    		if ('placeholderValues' in $$props) $$invalidate(1, placeholderValues = $$props.placeholderValues);
    		if ('placeholderInputs' in $$props) $$invalidate(2, placeholderInputs = $$props.placeholderInputs);
    		if ('timeline' in $$props) timeline = $$props.timeline;
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		selectedWorkflow,
    		placeholderValues,
    		placeholderInputs,
    		workflows,
    		handleWorkflowChange,
    		processInputs,
    		updateInputs,
    		select_change_handler,
    		input_input_handler
    	];
    }

    class LLMWorkflowTest extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$5, create_fragment$5, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "LLMWorkflowTest",
    			options,
    			id: create_fragment$5.name
    		});
    	}
    }

    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

    function getDefaultExportFromCjs (x) {
    	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
    }

    function commonjsRequire(path) {
    	throw new Error('Could not dynamically require "' + path + '". Please configure the dynamicRequireTargets or/and ignoreDynamicRequires option of @rollup/plugin-commonjs appropriately for this require call to work.');
    }

    var jszip_min = {exports: {}};

    /*!

    JSZip v3.10.1 - A JavaScript class for generating and reading zip files
    <http://stuartk.com/jszip>

    (c) 2009-2016 Stuart Knightley <stuart [at] stuartk.com>
    Dual licenced under the MIT license or GPLv3. See https://raw.github.com/Stuk/jszip/main/LICENSE.markdown.

    JSZip uses the library pako released under the MIT license :
    https://github.com/nodeca/pako/blob/main/LICENSE
    */

    (function (module, exports) {
    	!function(e){module.exports=e();}(function(){return function s(a,o,h){function u(r,e){if(!o[r]){if(!a[r]){var t="function"==typeof commonjsRequire&&commonjsRequire;if(!e&&t)return t(r,!0);if(l)return l(r,!0);var n=new Error("Cannot find module '"+r+"'");throw n.code="MODULE_NOT_FOUND",n}var i=o[r]={exports:{}};a[r][0].call(i.exports,function(e){var t=a[r][1][e];return u(t||e)},i,i.exports,s,a,o,h);}return o[r].exports}for(var l="function"==typeof commonjsRequire&&commonjsRequire,e=0;e<h.length;e++)u(h[e]);return u}({1:[function(e,t,r){var d=e("./utils"),c=e("./support"),p="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";r.encode=function(e){for(var t,r,n,i,s,a,o,h=[],u=0,l=e.length,f=l,c="string"!==d.getTypeOf(e);u<e.length;)f=l-u,n=c?(t=e[u++],r=u<l?e[u++]:0,u<l?e[u++]:0):(t=e.charCodeAt(u++),r=u<l?e.charCodeAt(u++):0,u<l?e.charCodeAt(u++):0),i=t>>2,s=(3&t)<<4|r>>4,a=1<f?(15&r)<<2|n>>6:64,o=2<f?63&n:64,h.push(p.charAt(i)+p.charAt(s)+p.charAt(a)+p.charAt(o));return h.join("")},r.decode=function(e){var t,r,n,i,s,a,o=0,h=0,u="data:";if(e.substr(0,u.length)===u)throw new Error("Invalid base64 input, it looks like a data url.");var l,f=3*(e=e.replace(/[^A-Za-z0-9+/=]/g,"")).length/4;if(e.charAt(e.length-1)===p.charAt(64)&&f--,e.charAt(e.length-2)===p.charAt(64)&&f--,f%1!=0)throw new Error("Invalid base64 input, bad content length.");for(l=c.uint8array?new Uint8Array(0|f):new Array(0|f);o<e.length;)t=p.indexOf(e.charAt(o++))<<2|(i=p.indexOf(e.charAt(o++)))>>4,r=(15&i)<<4|(s=p.indexOf(e.charAt(o++)))>>2,n=(3&s)<<6|(a=p.indexOf(e.charAt(o++))),l[h++]=t,64!==s&&(l[h++]=r),64!==a&&(l[h++]=n);return l};},{"./support":30,"./utils":32}],2:[function(e,t,r){var n=e("./external"),i=e("./stream/DataWorker"),s=e("./stream/Crc32Probe"),a=e("./stream/DataLengthProbe");function o(e,t,r,n,i){this.compressedSize=e,this.uncompressedSize=t,this.crc32=r,this.compression=n,this.compressedContent=i;}o.prototype={getContentWorker:function(){var e=new i(n.Promise.resolve(this.compressedContent)).pipe(this.compression.uncompressWorker()).pipe(new a("data_length")),t=this;return e.on("end",function(){if(this.streamInfo.data_length!==t.uncompressedSize)throw new Error("Bug : uncompressed data size mismatch")}),e},getCompressedWorker:function(){return new i(n.Promise.resolve(this.compressedContent)).withStreamInfo("compressedSize",this.compressedSize).withStreamInfo("uncompressedSize",this.uncompressedSize).withStreamInfo("crc32",this.crc32).withStreamInfo("compression",this.compression)}},o.createWorkerFrom=function(e,t,r){return e.pipe(new s).pipe(new a("uncompressedSize")).pipe(t.compressWorker(r)).pipe(new a("compressedSize")).withStreamInfo("compression",t)},t.exports=o;},{"./external":6,"./stream/Crc32Probe":25,"./stream/DataLengthProbe":26,"./stream/DataWorker":27}],3:[function(e,t,r){var n=e("./stream/GenericWorker");r.STORE={magic:"\0\0",compressWorker:function(){return new n("STORE compression")},uncompressWorker:function(){return new n("STORE decompression")}},r.DEFLATE=e("./flate");},{"./flate":7,"./stream/GenericWorker":28}],4:[function(e,t,r){var n=e("./utils");var o=function(){for(var e,t=[],r=0;r<256;r++){e=r;for(var n=0;n<8;n++)e=1&e?3988292384^e>>>1:e>>>1;t[r]=e;}return t}();t.exports=function(e,t){return void 0!==e&&e.length?"string"!==n.getTypeOf(e)?function(e,t,r,n){var i=o,s=n+r;e^=-1;for(var a=n;a<s;a++)e=e>>>8^i[255&(e^t[a])];return -1^e}(0|t,e,e.length,0):function(e,t,r,n){var i=o,s=n+r;e^=-1;for(var a=n;a<s;a++)e=e>>>8^i[255&(e^t.charCodeAt(a))];return -1^e}(0|t,e,e.length,0):0};},{"./utils":32}],5:[function(e,t,r){r.base64=!1,r.binary=!1,r.dir=!1,r.createFolders=!0,r.date=null,r.compression=null,r.compressionOptions=null,r.comment=null,r.unixPermissions=null,r.dosPermissions=null;},{}],6:[function(e,t,r){var n=null;n="undefined"!=typeof Promise?Promise:e("lie"),t.exports={Promise:n};},{lie:37}],7:[function(e,t,r){var n="undefined"!=typeof Uint8Array&&"undefined"!=typeof Uint16Array&&"undefined"!=typeof Uint32Array,i=e("pako"),s=e("./utils"),a=e("./stream/GenericWorker"),o=n?"uint8array":"array";function h(e,t){a.call(this,"FlateWorker/"+e),this._pako=null,this._pakoAction=e,this._pakoOptions=t,this.meta={};}r.magic="\b\0",s.inherits(h,a),h.prototype.processChunk=function(e){this.meta=e.meta,null===this._pako&&this._createPako(),this._pako.push(s.transformTo(o,e.data),!1);},h.prototype.flush=function(){a.prototype.flush.call(this),null===this._pako&&this._createPako(),this._pako.push([],!0);},h.prototype.cleanUp=function(){a.prototype.cleanUp.call(this),this._pako=null;},h.prototype._createPako=function(){this._pako=new i[this._pakoAction]({raw:!0,level:this._pakoOptions.level||-1});var t=this;this._pako.onData=function(e){t.push({data:e,meta:t.meta});};},r.compressWorker=function(e){return new h("Deflate",e)},r.uncompressWorker=function(){return new h("Inflate",{})};},{"./stream/GenericWorker":28,"./utils":32,pako:38}],8:[function(e,t,r){function A(e,t){var r,n="";for(r=0;r<t;r++)n+=String.fromCharCode(255&e),e>>>=8;return n}function n(e,t,r,n,i,s){var a,o,h=e.file,u=e.compression,l=s!==O.utf8encode,f=I.transformTo("string",s(h.name)),c=I.transformTo("string",O.utf8encode(h.name)),d=h.comment,p=I.transformTo("string",s(d)),m=I.transformTo("string",O.utf8encode(d)),_=c.length!==h.name.length,g=m.length!==d.length,b="",v="",y="",w=h.dir,k=h.date,x={crc32:0,compressedSize:0,uncompressedSize:0};t&&!r||(x.crc32=e.crc32,x.compressedSize=e.compressedSize,x.uncompressedSize=e.uncompressedSize);var S=0;t&&(S|=8),l||!_&&!g||(S|=2048);var z=0,C=0;w&&(z|=16),"UNIX"===i?(C=798,z|=function(e,t){var r=e;return e||(r=t?16893:33204),(65535&r)<<16}(h.unixPermissions,w)):(C=20,z|=function(e){return 63&(e||0)}(h.dosPermissions)),a=k.getUTCHours(),a<<=6,a|=k.getUTCMinutes(),a<<=5,a|=k.getUTCSeconds()/2,o=k.getUTCFullYear()-1980,o<<=4,o|=k.getUTCMonth()+1,o<<=5,o|=k.getUTCDate(),_&&(v=A(1,1)+A(B(f),4)+c,b+="up"+A(v.length,2)+v),g&&(y=A(1,1)+A(B(p),4)+m,b+="uc"+A(y.length,2)+y);var E="";return E+="\n\0",E+=A(S,2),E+=u.magic,E+=A(a,2),E+=A(o,2),E+=A(x.crc32,4),E+=A(x.compressedSize,4),E+=A(x.uncompressedSize,4),E+=A(f.length,2),E+=A(b.length,2),{fileRecord:R.LOCAL_FILE_HEADER+E+f+b,dirRecord:R.CENTRAL_FILE_HEADER+A(C,2)+E+A(p.length,2)+"\0\0\0\0"+A(z,4)+A(n,4)+f+b+p}}var I=e("../utils"),i=e("../stream/GenericWorker"),O=e("../utf8"),B=e("../crc32"),R=e("../signature");function s(e,t,r,n){i.call(this,"ZipFileWorker"),this.bytesWritten=0,this.zipComment=t,this.zipPlatform=r,this.encodeFileName=n,this.streamFiles=e,this.accumulate=!1,this.contentBuffer=[],this.dirRecords=[],this.currentSourceOffset=0,this.entriesCount=0,this.currentFile=null,this._sources=[];}I.inherits(s,i),s.prototype.push=function(e){var t=e.meta.percent||0,r=this.entriesCount,n=this._sources.length;this.accumulate?this.contentBuffer.push(e):(this.bytesWritten+=e.data.length,i.prototype.push.call(this,{data:e.data,meta:{currentFile:this.currentFile,percent:r?(t+100*(r-n-1))/r:100}}));},s.prototype.openedSource=function(e){this.currentSourceOffset=this.bytesWritten,this.currentFile=e.file.name;var t=this.streamFiles&&!e.file.dir;if(t){var r=n(e,t,!1,this.currentSourceOffset,this.zipPlatform,this.encodeFileName);this.push({data:r.fileRecord,meta:{percent:0}});}else this.accumulate=!0;},s.prototype.closedSource=function(e){this.accumulate=!1;var t=this.streamFiles&&!e.file.dir,r=n(e,t,!0,this.currentSourceOffset,this.zipPlatform,this.encodeFileName);if(this.dirRecords.push(r.dirRecord),t)this.push({data:function(e){return R.DATA_DESCRIPTOR+A(e.crc32,4)+A(e.compressedSize,4)+A(e.uncompressedSize,4)}(e),meta:{percent:100}});else for(this.push({data:r.fileRecord,meta:{percent:0}});this.contentBuffer.length;)this.push(this.contentBuffer.shift());this.currentFile=null;},s.prototype.flush=function(){for(var e=this.bytesWritten,t=0;t<this.dirRecords.length;t++)this.push({data:this.dirRecords[t],meta:{percent:100}});var r=this.bytesWritten-e,n=function(e,t,r,n,i){var s=I.transformTo("string",i(n));return R.CENTRAL_DIRECTORY_END+"\0\0\0\0"+A(e,2)+A(e,2)+A(t,4)+A(r,4)+A(s.length,2)+s}(this.dirRecords.length,r,e,this.zipComment,this.encodeFileName);this.push({data:n,meta:{percent:100}});},s.prototype.prepareNextSource=function(){this.previous=this._sources.shift(),this.openedSource(this.previous.streamInfo),this.isPaused?this.previous.pause():this.previous.resume();},s.prototype.registerPrevious=function(e){this._sources.push(e);var t=this;return e.on("data",function(e){t.processChunk(e);}),e.on("end",function(){t.closedSource(t.previous.streamInfo),t._sources.length?t.prepareNextSource():t.end();}),e.on("error",function(e){t.error(e);}),this},s.prototype.resume=function(){return !!i.prototype.resume.call(this)&&(!this.previous&&this._sources.length?(this.prepareNextSource(),!0):this.previous||this._sources.length||this.generatedError?void 0:(this.end(),!0))},s.prototype.error=function(e){var t=this._sources;if(!i.prototype.error.call(this,e))return !1;for(var r=0;r<t.length;r++)try{t[r].error(e);}catch(e){}return !0},s.prototype.lock=function(){i.prototype.lock.call(this);for(var e=this._sources,t=0;t<e.length;t++)e[t].lock();},t.exports=s;},{"../crc32":4,"../signature":23,"../stream/GenericWorker":28,"../utf8":31,"../utils":32}],9:[function(e,t,r){var u=e("../compressions"),n=e("./ZipFileWorker");r.generateWorker=function(e,a,t){var o=new n(a.streamFiles,t,a.platform,a.encodeFileName),h=0;try{e.forEach(function(e,t){h++;var r=function(e,t){var r=e||t,n=u[r];if(!n)throw new Error(r+" is not a valid compression method !");return n}(t.options.compression,a.compression),n=t.options.compressionOptions||a.compressionOptions||{},i=t.dir,s=t.date;t._compressWorker(r,n).withStreamInfo("file",{name:e,dir:i,date:s,comment:t.comment||"",unixPermissions:t.unixPermissions,dosPermissions:t.dosPermissions}).pipe(o);}),o.entriesCount=h;}catch(e){o.error(e);}return o};},{"../compressions":3,"./ZipFileWorker":8}],10:[function(e,t,r){function n(){if(!(this instanceof n))return new n;if(arguments.length)throw new Error("The constructor with parameters has been removed in JSZip 3.0, please check the upgrade guide.");this.files=Object.create(null),this.comment=null,this.root="",this.clone=function(){var e=new n;for(var t in this)"function"!=typeof this[t]&&(e[t]=this[t]);return e};}(n.prototype=e("./object")).loadAsync=e("./load"),n.support=e("./support"),n.defaults=e("./defaults"),n.version="3.10.1",n.loadAsync=function(e,t){return (new n).loadAsync(e,t)},n.external=e("./external"),t.exports=n;},{"./defaults":5,"./external":6,"./load":11,"./object":15,"./support":30}],11:[function(e,t,r){var u=e("./utils"),i=e("./external"),n=e("./utf8"),s=e("./zipEntries"),a=e("./stream/Crc32Probe"),l=e("./nodejsUtils");function f(n){return new i.Promise(function(e,t){var r=n.decompressed.getContentWorker().pipe(new a);r.on("error",function(e){t(e);}).on("end",function(){r.streamInfo.crc32!==n.decompressed.crc32?t(new Error("Corrupted zip : CRC32 mismatch")):e();}).resume();})}t.exports=function(e,o){var h=this;return o=u.extend(o||{},{base64:!1,checkCRC32:!1,optimizedBinaryString:!1,createFolders:!1,decodeFileName:n.utf8decode}),l.isNode&&l.isStream(e)?i.Promise.reject(new Error("JSZip can't accept a stream when loading a zip file.")):u.prepareContent("the loaded zip file",e,!0,o.optimizedBinaryString,o.base64).then(function(e){var t=new s(o);return t.load(e),t}).then(function(e){var t=[i.Promise.resolve(e)],r=e.files;if(o.checkCRC32)for(var n=0;n<r.length;n++)t.push(f(r[n]));return i.Promise.all(t)}).then(function(e){for(var t=e.shift(),r=t.files,n=0;n<r.length;n++){var i=r[n],s=i.fileNameStr,a=u.resolve(i.fileNameStr);h.file(a,i.decompressed,{binary:!0,optimizedBinaryString:!0,date:i.date,dir:i.dir,comment:i.fileCommentStr.length?i.fileCommentStr:null,unixPermissions:i.unixPermissions,dosPermissions:i.dosPermissions,createFolders:o.createFolders}),i.dir||(h.file(a).unsafeOriginalName=s);}return t.zipComment.length&&(h.comment=t.zipComment),h})};},{"./external":6,"./nodejsUtils":14,"./stream/Crc32Probe":25,"./utf8":31,"./utils":32,"./zipEntries":33}],12:[function(e,t,r){var n=e("../utils"),i=e("../stream/GenericWorker");function s(e,t){i.call(this,"Nodejs stream input adapter for "+e),this._upstreamEnded=!1,this._bindStream(t);}n.inherits(s,i),s.prototype._bindStream=function(e){var t=this;(this._stream=e).pause(),e.on("data",function(e){t.push({data:e,meta:{percent:0}});}).on("error",function(e){t.isPaused?this.generatedError=e:t.error(e);}).on("end",function(){t.isPaused?t._upstreamEnded=!0:t.end();});},s.prototype.pause=function(){return !!i.prototype.pause.call(this)&&(this._stream.pause(),!0)},s.prototype.resume=function(){return !!i.prototype.resume.call(this)&&(this._upstreamEnded?this.end():this._stream.resume(),!0)},t.exports=s;},{"../stream/GenericWorker":28,"../utils":32}],13:[function(e,t,r){var i=e("readable-stream").Readable;function n(e,t,r){i.call(this,t),this._helper=e;var n=this;e.on("data",function(e,t){n.push(e)||n._helper.pause(),r&&r(t);}).on("error",function(e){n.emit("error",e);}).on("end",function(){n.push(null);});}e("../utils").inherits(n,i),n.prototype._read=function(){this._helper.resume();},t.exports=n;},{"../utils":32,"readable-stream":16}],14:[function(e,t,r){t.exports={isNode:"undefined"!=typeof Buffer,newBufferFrom:function(e,t){if(Buffer.from&&Buffer.from!==Uint8Array.from)return Buffer.from(e,t);if("number"==typeof e)throw new Error('The "data" argument must not be a number');return new Buffer(e,t)},allocBuffer:function(e){if(Buffer.alloc)return Buffer.alloc(e);var t=new Buffer(e);return t.fill(0),t},isBuffer:function(e){return Buffer.isBuffer(e)},isStream:function(e){return e&&"function"==typeof e.on&&"function"==typeof e.pause&&"function"==typeof e.resume}};},{}],15:[function(e,t,r){function s(e,t,r){var n,i=u.getTypeOf(t),s=u.extend(r||{},f);s.date=s.date||new Date,null!==s.compression&&(s.compression=s.compression.toUpperCase()),"string"==typeof s.unixPermissions&&(s.unixPermissions=parseInt(s.unixPermissions,8)),s.unixPermissions&&16384&s.unixPermissions&&(s.dir=!0),s.dosPermissions&&16&s.dosPermissions&&(s.dir=!0),s.dir&&(e=g(e)),s.createFolders&&(n=_(e))&&b.call(this,n,!0);var a="string"===i&&!1===s.binary&&!1===s.base64;r&&void 0!==r.binary||(s.binary=!a),(t instanceof c&&0===t.uncompressedSize||s.dir||!t||0===t.length)&&(s.base64=!1,s.binary=!0,t="",s.compression="STORE",i="string");var o=null;o=t instanceof c||t instanceof l?t:p.isNode&&p.isStream(t)?new m(e,t):u.prepareContent(e,t,s.binary,s.optimizedBinaryString,s.base64);var h=new d(e,o,s);this.files[e]=h;}var i=e("./utf8"),u=e("./utils"),l=e("./stream/GenericWorker"),a=e("./stream/StreamHelper"),f=e("./defaults"),c=e("./compressedObject"),d=e("./zipObject"),o=e("./generate"),p=e("./nodejsUtils"),m=e("./nodejs/NodejsStreamInputAdapter"),_=function(e){"/"===e.slice(-1)&&(e=e.substring(0,e.length-1));var t=e.lastIndexOf("/");return 0<t?e.substring(0,t):""},g=function(e){return "/"!==e.slice(-1)&&(e+="/"),e},b=function(e,t){return t=void 0!==t?t:f.createFolders,e=g(e),this.files[e]||s.call(this,e,null,{dir:!0,createFolders:t}),this.files[e]};function h(e){return "[object RegExp]"===Object.prototype.toString.call(e)}var n={load:function(){throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.")},forEach:function(e){var t,r,n;for(t in this.files)n=this.files[t],(r=t.slice(this.root.length,t.length))&&t.slice(0,this.root.length)===this.root&&e(r,n);},filter:function(r){var n=[];return this.forEach(function(e,t){r(e,t)&&n.push(t);}),n},file:function(e,t,r){if(1!==arguments.length)return e=this.root+e,s.call(this,e,t,r),this;if(h(e)){var n=e;return this.filter(function(e,t){return !t.dir&&n.test(e)})}var i=this.files[this.root+e];return i&&!i.dir?i:null},folder:function(r){if(!r)return this;if(h(r))return this.filter(function(e,t){return t.dir&&r.test(e)});var e=this.root+r,t=b.call(this,e),n=this.clone();return n.root=t.name,n},remove:function(r){r=this.root+r;var e=this.files[r];if(e||("/"!==r.slice(-1)&&(r+="/"),e=this.files[r]),e&&!e.dir)delete this.files[r];else for(var t=this.filter(function(e,t){return t.name.slice(0,r.length)===r}),n=0;n<t.length;n++)delete this.files[t[n].name];return this},generate:function(){throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.")},generateInternalStream:function(e){var t,r={};try{if((r=u.extend(e||{},{streamFiles:!1,compression:"STORE",compressionOptions:null,type:"",platform:"DOS",comment:null,mimeType:"application/zip",encodeFileName:i.utf8encode})).type=r.type.toLowerCase(),r.compression=r.compression.toUpperCase(),"binarystring"===r.type&&(r.type="string"),!r.type)throw new Error("No output type specified.");u.checkSupport(r.type),"darwin"!==r.platform&&"freebsd"!==r.platform&&"linux"!==r.platform&&"sunos"!==r.platform||(r.platform="UNIX"),"win32"===r.platform&&(r.platform="DOS");var n=r.comment||this.comment||"";t=o.generateWorker(this,r,n);}catch(e){(t=new l("error")).error(e);}return new a(t,r.type||"string",r.mimeType)},generateAsync:function(e,t){return this.generateInternalStream(e).accumulate(t)},generateNodeStream:function(e,t){return (e=e||{}).type||(e.type="nodebuffer"),this.generateInternalStream(e).toNodejsStream(t)}};t.exports=n;},{"./compressedObject":2,"./defaults":5,"./generate":9,"./nodejs/NodejsStreamInputAdapter":12,"./nodejsUtils":14,"./stream/GenericWorker":28,"./stream/StreamHelper":29,"./utf8":31,"./utils":32,"./zipObject":35}],16:[function(e,t,r){t.exports=e("stream");},{stream:void 0}],17:[function(e,t,r){var n=e("./DataReader");function i(e){n.call(this,e);for(var t=0;t<this.data.length;t++)e[t]=255&e[t];}e("../utils").inherits(i,n),i.prototype.byteAt=function(e){return this.data[this.zero+e]},i.prototype.lastIndexOfSignature=function(e){for(var t=e.charCodeAt(0),r=e.charCodeAt(1),n=e.charCodeAt(2),i=e.charCodeAt(3),s=this.length-4;0<=s;--s)if(this.data[s]===t&&this.data[s+1]===r&&this.data[s+2]===n&&this.data[s+3]===i)return s-this.zero;return -1},i.prototype.readAndCheckSignature=function(e){var t=e.charCodeAt(0),r=e.charCodeAt(1),n=e.charCodeAt(2),i=e.charCodeAt(3),s=this.readData(4);return t===s[0]&&r===s[1]&&n===s[2]&&i===s[3]},i.prototype.readData=function(e){if(this.checkOffset(e),0===e)return [];var t=this.data.slice(this.zero+this.index,this.zero+this.index+e);return this.index+=e,t},t.exports=i;},{"../utils":32,"./DataReader":18}],18:[function(e,t,r){var n=e("../utils");function i(e){this.data=e,this.length=e.length,this.index=0,this.zero=0;}i.prototype={checkOffset:function(e){this.checkIndex(this.index+e);},checkIndex:function(e){if(this.length<this.zero+e||e<0)throw new Error("End of data reached (data length = "+this.length+", asked index = "+e+"). Corrupted zip ?")},setIndex:function(e){this.checkIndex(e),this.index=e;},skip:function(e){this.setIndex(this.index+e);},byteAt:function(){},readInt:function(e){var t,r=0;for(this.checkOffset(e),t=this.index+e-1;t>=this.index;t--)r=(r<<8)+this.byteAt(t);return this.index+=e,r},readString:function(e){return n.transformTo("string",this.readData(e))},readData:function(){},lastIndexOfSignature:function(){},readAndCheckSignature:function(){},readDate:function(){var e=this.readInt(4);return new Date(Date.UTC(1980+(e>>25&127),(e>>21&15)-1,e>>16&31,e>>11&31,e>>5&63,(31&e)<<1))}},t.exports=i;},{"../utils":32}],19:[function(e,t,r){var n=e("./Uint8ArrayReader");function i(e){n.call(this,e);}e("../utils").inherits(i,n),i.prototype.readData=function(e){this.checkOffset(e);var t=this.data.slice(this.zero+this.index,this.zero+this.index+e);return this.index+=e,t},t.exports=i;},{"../utils":32,"./Uint8ArrayReader":21}],20:[function(e,t,r){var n=e("./DataReader");function i(e){n.call(this,e);}e("../utils").inherits(i,n),i.prototype.byteAt=function(e){return this.data.charCodeAt(this.zero+e)},i.prototype.lastIndexOfSignature=function(e){return this.data.lastIndexOf(e)-this.zero},i.prototype.readAndCheckSignature=function(e){return e===this.readData(4)},i.prototype.readData=function(e){this.checkOffset(e);var t=this.data.slice(this.zero+this.index,this.zero+this.index+e);return this.index+=e,t},t.exports=i;},{"../utils":32,"./DataReader":18}],21:[function(e,t,r){var n=e("./ArrayReader");function i(e){n.call(this,e);}e("../utils").inherits(i,n),i.prototype.readData=function(e){if(this.checkOffset(e),0===e)return new Uint8Array(0);var t=this.data.subarray(this.zero+this.index,this.zero+this.index+e);return this.index+=e,t},t.exports=i;},{"../utils":32,"./ArrayReader":17}],22:[function(e,t,r){var n=e("../utils"),i=e("../support"),s=e("./ArrayReader"),a=e("./StringReader"),o=e("./NodeBufferReader"),h=e("./Uint8ArrayReader");t.exports=function(e){var t=n.getTypeOf(e);return n.checkSupport(t),"string"!==t||i.uint8array?"nodebuffer"===t?new o(e):i.uint8array?new h(n.transformTo("uint8array",e)):new s(n.transformTo("array",e)):new a(e)};},{"../support":30,"../utils":32,"./ArrayReader":17,"./NodeBufferReader":19,"./StringReader":20,"./Uint8ArrayReader":21}],23:[function(e,t,r){r.LOCAL_FILE_HEADER="PK",r.CENTRAL_FILE_HEADER="PK
",r.CENTRAL_DIRECTORY_END="PK",r.ZIP64_CENTRAL_DIRECTORY_LOCATOR="PK",r.ZIP64_CENTRAL_DIRECTORY_END="PK",r.DATA_DESCRIPTOR="PK\b";},{}],24:[function(e,t,r){var n=e("./GenericWorker"),i=e("../utils");function s(e){n.call(this,"ConvertWorker to "+e),this.destType=e;}i.inherits(s,n),s.prototype.processChunk=function(e){this.push({data:i.transformTo(this.destType,e.data),meta:e.meta});},t.exports=s;},{"../utils":32,"./GenericWorker":28}],25:[function(e,t,r){var n=e("./GenericWorker"),i=e("../crc32");function s(){n.call(this,"Crc32Probe"),this.withStreamInfo("crc32",0);}e("../utils").inherits(s,n),s.prototype.processChunk=function(e){this.streamInfo.crc32=i(e.data,this.streamInfo.crc32||0),this.push(e);},t.exports=s;},{"../crc32":4,"../utils":32,"./GenericWorker":28}],26:[function(e,t,r){var n=e("../utils"),i=e("./GenericWorker");function s(e){i.call(this,"DataLengthProbe for "+e),this.propName=e,this.withStreamInfo(e,0);}n.inherits(s,i),s.prototype.processChunk=function(e){if(e){var t=this.streamInfo[this.propName]||0;this.streamInfo[this.propName]=t+e.data.length;}i.prototype.processChunk.call(this,e);},t.exports=s;},{"../utils":32,"./GenericWorker":28}],27:[function(e,t,r){var n=e("../utils"),i=e("./GenericWorker");function s(e){i.call(this,"DataWorker");var t=this;this.dataIsReady=!1,this.index=0,this.max=0,this.data=null,this.type="",this._tickScheduled=!1,e.then(function(e){t.dataIsReady=!0,t.data=e,t.max=e&&e.length||0,t.type=n.getTypeOf(e),t.isPaused||t._tickAndRepeat();},function(e){t.error(e);});}n.inherits(s,i),s.prototype.cleanUp=function(){i.prototype.cleanUp.call(this),this.data=null;},s.prototype.resume=function(){return !!i.prototype.resume.call(this)&&(!this._tickScheduled&&this.dataIsReady&&(this._tickScheduled=!0,n.delay(this._tickAndRepeat,[],this)),!0)},s.prototype._tickAndRepeat=function(){this._tickScheduled=!1,this.isPaused||this.isFinished||(this._tick(),this.isFinished||(n.delay(this._tickAndRepeat,[],this),this._tickScheduled=!0));},s.prototype._tick=function(){if(this.isPaused||this.isFinished)return !1;var e=null,t=Math.min(this.max,this.index+16384);if(this.index>=this.max)return this.end();switch(this.type){case"string":e=this.data.substring(this.index,t);break;case"uint8array":e=this.data.subarray(this.index,t);break;case"array":case"nodebuffer":e=this.data.slice(this.index,t);}return this.index=t,this.push({data:e,meta:{percent:this.max?this.index/this.max*100:0}})},t.exports=s;},{"../utils":32,"./GenericWorker":28}],28:[function(e,t,r){function n(e){this.name=e||"default",this.streamInfo={},this.generatedError=null,this.extraStreamInfo={},this.isPaused=!0,this.isFinished=!1,this.isLocked=!1,this._listeners={data:[],end:[],error:[]},this.previous=null;}n.prototype={push:function(e){this.emit("data",e);},end:function(){if(this.isFinished)return !1;this.flush();try{this.emit("end"),this.cleanUp(),this.isFinished=!0;}catch(e){this.emit("error",e);}return !0},error:function(e){return !this.isFinished&&(this.isPaused?this.generatedError=e:(this.isFinished=!0,this.emit("error",e),this.previous&&this.previous.error(e),this.cleanUp()),!0)},on:function(e,t){return this._listeners[e].push(t),this},cleanUp:function(){this.streamInfo=this.generatedError=this.extraStreamInfo=null,this._listeners=[];},emit:function(e,t){if(this._listeners[e])for(var r=0;r<this._listeners[e].length;r++)this._listeners[e][r].call(this,t);},pipe:function(e){return e.registerPrevious(this)},registerPrevious:function(e){if(this.isLocked)throw new Error("The stream '"+this+"' has already been used.");this.streamInfo=e.streamInfo,this.mergeStreamInfo(),this.previous=e;var t=this;return e.on("data",function(e){t.processChunk(e);}),e.on("end",function(){t.end();}),e.on("error",function(e){t.error(e);}),this},pause:function(){return !this.isPaused&&!this.isFinished&&(this.isPaused=!0,this.previous&&this.previous.pause(),!0)},resume:function(){if(!this.isPaused||this.isFinished)return !1;var e=this.isPaused=!1;return this.generatedError&&(this.error(this.generatedError),e=!0),this.previous&&this.previous.resume(),!e},flush:function(){},processChunk:function(e){this.push(e);},withStreamInfo:function(e,t){return this.extraStreamInfo[e]=t,this.mergeStreamInfo(),this},mergeStreamInfo:function(){for(var e in this.extraStreamInfo)Object.prototype.hasOwnProperty.call(this.extraStreamInfo,e)&&(this.streamInfo[e]=this.extraStreamInfo[e]);},lock:function(){if(this.isLocked)throw new Error("The stream '"+this+"' has already been used.");this.isLocked=!0,this.previous&&this.previous.lock();},toString:function(){var e="Worker "+this.name;return this.previous?this.previous+" -> "+e:e}},t.exports=n;},{}],29:[function(e,t,r){var h=e("../utils"),i=e("./ConvertWorker"),s=e("./GenericWorker"),u=e("../base64"),n=e("../support"),a=e("../external"),o=null;if(n.nodestream)try{o=e("../nodejs/NodejsStreamOutputAdapter");}catch(e){}function l(e,o){return new a.Promise(function(t,r){var n=[],i=e._internalType,s=e._outputType,a=e._mimeType;e.on("data",function(e,t){n.push(e),o&&o(t);}).on("error",function(e){n=[],r(e);}).on("end",function(){try{var e=function(e,t,r){switch(e){case"blob":return h.newBlob(h.transformTo("arraybuffer",t),r);case"base64":return u.encode(t);default:return h.transformTo(e,t)}}(s,function(e,t){var r,n=0,i=null,s=0;for(r=0;r<t.length;r++)s+=t[r].length;switch(e){case"string":return t.join("");case"array":return Array.prototype.concat.apply([],t);case"uint8array":for(i=new Uint8Array(s),r=0;r<t.length;r++)i.set(t[r],n),n+=t[r].length;return i;case"nodebuffer":return Buffer.concat(t);default:throw new Error("concat : unsupported type '"+e+"'")}}(i,n),a);t(e);}catch(e){r(e);}n=[];}).resume();})}function f(e,t,r){var n=t;switch(t){case"blob":case"arraybuffer":n="uint8array";break;case"base64":n="string";}try{this._internalType=n,this._outputType=t,this._mimeType=r,h.checkSupport(n),this._worker=e.pipe(new i(n)),e.lock();}catch(e){this._worker=new s("error"),this._worker.error(e);}}f.prototype={accumulate:function(e){return l(this,e)},on:function(e,t){var r=this;return "data"===e?this._worker.on(e,function(e){t.call(r,e.data,e.meta);}):this._worker.on(e,function(){h.delay(t,arguments,r);}),this},resume:function(){return h.delay(this._worker.resume,[],this._worker),this},pause:function(){return this._worker.pause(),this},toNodejsStream:function(e){if(h.checkSupport("nodestream"),"nodebuffer"!==this._outputType)throw new Error(this._outputType+" is not supported by this method");return new o(this,{objectMode:"nodebuffer"!==this._outputType},e)}},t.exports=f;},{"../base64":1,"../external":6,"../nodejs/NodejsStreamOutputAdapter":13,"../support":30,"../utils":32,"./ConvertWorker":24,"./GenericWorker":28}],30:[function(e,t,r){if(r.base64=!0,r.array=!0,r.string=!0,r.arraybuffer="undefined"!=typeof ArrayBuffer&&"undefined"!=typeof Uint8Array,r.nodebuffer="undefined"!=typeof Buffer,r.uint8array="undefined"!=typeof Uint8Array,"undefined"==typeof ArrayBuffer)r.blob=!1;else {var n=new ArrayBuffer(0);try{r.blob=0===new Blob([n],{type:"application/zip"}).size;}catch(e){try{var i=new(self.BlobBuilder||self.WebKitBlobBuilder||self.MozBlobBuilder||self.MSBlobBuilder);i.append(n),r.blob=0===i.getBlob("application/zip").size;}catch(e){r.blob=!1;}}}try{r.nodestream=!!e("readable-stream").Readable;}catch(e){r.nodestream=!1;}},{"readable-stream":16}],31:[function(e,t,s){for(var o=e("./utils"),h=e("./support"),r=e("./nodejsUtils"),n=e("./stream/GenericWorker"),u=new Array(256),i=0;i<256;i++)u[i]=252<=i?6:248<=i?5:240<=i?4:224<=i?3:192<=i?2:1;u[254]=u[254]=1;function a(){n.call(this,"utf-8 decode"),this.leftOver=null;}function l(){n.call(this,"utf-8 encode");}s.utf8encode=function(e){return h.nodebuffer?r.newBufferFrom(e,"utf-8"):function(e){var t,r,n,i,s,a=e.length,o=0;for(i=0;i<a;i++)55296==(64512&(r=e.charCodeAt(i)))&&i+1<a&&56320==(64512&(n=e.charCodeAt(i+1)))&&(r=65536+(r-55296<<10)+(n-56320),i++),o+=r<128?1:r<2048?2:r<65536?3:4;for(t=h.uint8array?new Uint8Array(o):new Array(o),i=s=0;s<o;i++)55296==(64512&(r=e.charCodeAt(i)))&&i+1<a&&56320==(64512&(n=e.charCodeAt(i+1)))&&(r=65536+(r-55296<<10)+(n-56320),i++),r<128?t[s++]=r:(r<2048?t[s++]=192|r>>>6:(r<65536?t[s++]=224|r>>>12:(t[s++]=240|r>>>18,t[s++]=128|r>>>12&63),t[s++]=128|r>>>6&63),t[s++]=128|63&r);return t}(e)},s.utf8decode=function(e){return h.nodebuffer?o.transformTo("nodebuffer",e).toString("utf-8"):function(e){var t,r,n,i,s=e.length,a=new Array(2*s);for(t=r=0;t<s;)if((n=e[t++])<128)a[r++]=n;else if(4<(i=u[n]))a[r++]=65533,t+=i-1;else {for(n&=2===i?31:3===i?15:7;1<i&&t<s;)n=n<<6|63&e[t++],i--;1<i?a[r++]=65533:n<65536?a[r++]=n:(n-=65536,a[r++]=55296|n>>10&1023,a[r++]=56320|1023&n);}return a.length!==r&&(a.subarray?a=a.subarray(0,r):a.length=r),o.applyFromCharCode(a)}(e=o.transformTo(h.uint8array?"uint8array":"array",e))},o.inherits(a,n),a.prototype.processChunk=function(e){var t=o.transformTo(h.uint8array?"uint8array":"array",e.data);if(this.leftOver&&this.leftOver.length){if(h.uint8array){var r=t;(t=new Uint8Array(r.length+this.leftOver.length)).set(this.leftOver,0),t.set(r,this.leftOver.length);}else t=this.leftOver.concat(t);this.leftOver=null;}var n=function(e,t){var r;for((t=t||e.length)>e.length&&(t=e.length),r=t-1;0<=r&&128==(192&e[r]);)r--;return r<0?t:0===r?t:r+u[e[r]]>t?r:t}(t),i=t;n!==t.length&&(h.uint8array?(i=t.subarray(0,n),this.leftOver=t.subarray(n,t.length)):(i=t.slice(0,n),this.leftOver=t.slice(n,t.length))),this.push({data:s.utf8decode(i),meta:e.meta});},a.prototype.flush=function(){this.leftOver&&this.leftOver.length&&(this.push({data:s.utf8decode(this.leftOver),meta:{}}),this.leftOver=null);},s.Utf8DecodeWorker=a,o.inherits(l,n),l.prototype.processChunk=function(e){this.push({data:s.utf8encode(e.data),meta:e.meta});},s.Utf8EncodeWorker=l;},{"./nodejsUtils":14,"./stream/GenericWorker":28,"./support":30,"./utils":32}],32:[function(e,t,a){var o=e("./support"),h=e("./base64"),r=e("./nodejsUtils"),u=e("./external");function n(e){return e}function l(e,t){for(var r=0;r<e.length;++r)t[r]=255&e.charCodeAt(r);return t}e("setimmediate"),a.newBlob=function(t,r){a.checkSupport("blob");try{return new Blob([t],{type:r})}catch(e){try{var n=new(self.BlobBuilder||self.WebKitBlobBuilder||self.MozBlobBuilder||self.MSBlobBuilder);return n.append(t),n.getBlob(r)}catch(e){throw new Error("Bug : can't construct the Blob.")}}};var i={stringifyByChunk:function(e,t,r){var n=[],i=0,s=e.length;if(s<=r)return String.fromCharCode.apply(null,e);for(;i<s;)"array"===t||"nodebuffer"===t?n.push(String.fromCharCode.apply(null,e.slice(i,Math.min(i+r,s)))):n.push(String.fromCharCode.apply(null,e.subarray(i,Math.min(i+r,s)))),i+=r;return n.join("")},stringifyByChar:function(e){for(var t="",r=0;r<e.length;r++)t+=String.fromCharCode(e[r]);return t},applyCanBeUsed:{uint8array:function(){try{return o.uint8array&&1===String.fromCharCode.apply(null,new Uint8Array(1)).length}catch(e){return !1}}(),nodebuffer:function(){try{return o.nodebuffer&&1===String.fromCharCode.apply(null,r.allocBuffer(1)).length}catch(e){return !1}}()}};function s(e){var t=65536,r=a.getTypeOf(e),n=!0;if("uint8array"===r?n=i.applyCanBeUsed.uint8array:"nodebuffer"===r&&(n=i.applyCanBeUsed.nodebuffer),n)for(;1<t;)try{return i.stringifyByChunk(e,r,t)}catch(e){t=Math.floor(t/2);}return i.stringifyByChar(e)}function f(e,t){for(var r=0;r<e.length;r++)t[r]=e[r];return t}a.applyFromCharCode=s;var c={};c.string={string:n,array:function(e){return l(e,new Array(e.length))},arraybuffer:function(e){return c.string.uint8array(e).buffer},uint8array:function(e){return l(e,new Uint8Array(e.length))},nodebuffer:function(e){return l(e,r.allocBuffer(e.length))}},c.array={string:s,array:n,arraybuffer:function(e){return new Uint8Array(e).buffer},uint8array:function(e){return new Uint8Array(e)},nodebuffer:function(e){return r.newBufferFrom(e)}},c.arraybuffer={string:function(e){return s(new Uint8Array(e))},array:function(e){return f(new Uint8Array(e),new Array(e.byteLength))},arraybuffer:n,uint8array:function(e){return new Uint8Array(e)},nodebuffer:function(e){return r.newBufferFrom(new Uint8Array(e))}},c.uint8array={string:s,array:function(e){return f(e,new Array(e.length))},arraybuffer:function(e){return e.buffer},uint8array:n,nodebuffer:function(e){return r.newBufferFrom(e)}},c.nodebuffer={string:s,array:function(e){return f(e,new Array(e.length))},arraybuffer:function(e){return c.nodebuffer.uint8array(e).buffer},uint8array:function(e){return f(e,new Uint8Array(e.length))},nodebuffer:n},a.transformTo=function(e,t){if(t=t||"",!e)return t;a.checkSupport(e);var r=a.getTypeOf(t);return c[r][e](t)},a.resolve=function(e){for(var t=e.split("/"),r=[],n=0;n<t.length;n++){var i=t[n];"."===i||""===i&&0!==n&&n!==t.length-1||(".."===i?r.pop():r.push(i));}return r.join("/")},a.getTypeOf=function(e){return "string"==typeof e?"string":"[object Array]"===Object.prototype.toString.call(e)?"array":o.nodebuffer&&r.isBuffer(e)?"nodebuffer":o.uint8array&&e instanceof Uint8Array?"uint8array":o.arraybuffer&&e instanceof ArrayBuffer?"arraybuffer":void 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Is it in a supported JavaScript type (String, Blob, ArrayBuffer, etc) ?"))})};},{"./base64":1,"./external":6,"./nodejsUtils":14,"./support":30,setimmediate:54}],33:[function(e,t,r){var n=e("./reader/readerFor"),i=e("./utils"),s=e("./signature"),a=e("./zipEntry"),o=e("./support");function h(e){this.files=[],this.loadOptions=e;}h.prototype={checkSignature:function(e){if(!this.reader.readAndCheckSignature(e)){this.reader.index-=4;var t=this.reader.readString(4);throw new Error("Corrupted zip or bug: unexpected signature ("+i.pretty(t)+", expected "+i.pretty(e)+")")}},isSignature:function(e,t){var r=this.reader.index;this.reader.setIndex(e);var n=this.reader.readString(4)===t;return this.reader.setIndex(r),n},readBlockEndOfCentral:function(){this.diskNumber=this.reader.readInt(2),this.diskWithCentralDirStart=this.reader.readInt(2),this.centralDirRecordsOnThisDisk=this.reader.readInt(2),this.centralDirRecords=this.reader.readInt(2),this.centralDirSize=this.reader.readInt(4),this.centralDirOffset=this.reader.readInt(4),this.zipCommentLength=this.reader.readInt(2);var e=this.reader.readData(this.zipCommentLength),t=o.uint8array?"uint8array":"array",r=i.transformTo(t,e);this.zipComment=this.loadOptions.decodeFileName(r);},readBlockZip64EndOfCentral:function(){this.zip64EndOfCentralSize=this.reader.readInt(8),this.reader.skip(4),this.diskNumber=this.reader.readInt(4),this.diskWithCentralDirStart=this.reader.readInt(4),this.centralDirRecordsOnThisDisk=this.reader.readInt(8),this.centralDirRecords=this.reader.readInt(8),this.centralDirSize=this.reader.readInt(8),this.centralDirOffset=this.reader.readInt(8),this.zip64ExtensibleData={};for(var e,t,r,n=this.zip64EndOfCentralSize-44;0<n;)e=this.reader.readInt(2),t=this.reader.readInt(4),r=this.reader.readData(t),this.zip64ExtensibleData[e]={id:e,length:t,value:r};},readBlockZip64EndOfCentralLocator:function(){if(this.diskWithZip64CentralDirStart=this.reader.readInt(4),this.relativeOffsetEndOfZip64CentralDir=this.reader.readInt(8),this.disksCount=this.reader.readInt(4),1<this.disksCount)throw new Error("Multi-volumes zip are not supported")},readLocalFiles:function(){var e,t;for(e=0;e<this.files.length;e++)t=this.files[e],this.reader.setIndex(t.localHeaderOffset),this.checkSignature(s.LOCAL_FILE_HEADER),t.readLocalPart(this.reader),t.handleUTF8(),t.processAttributes();},readCentralDir:function(){var e;for(this.reader.setIndex(this.centralDirOffset);this.reader.readAndCheckSignature(s.CENTRAL_FILE_HEADER);)(e=new a({zip64:this.zip64},this.loadOptions)).readCentralPart(this.reader),this.files.push(e);if(this.centralDirRecords!==this.files.length&&0!==this.centralDirRecords&&0===this.files.length)throw new Error("Corrupted zip or bug: expected "+this.centralDirRecords+" records in central dir, got "+this.files.length)},readEndOfCentral:function(){var e=this.reader.lastIndexOfSignature(s.CENTRAL_DIRECTORY_END);if(e<0)throw !this.isSignature(0,s.LOCAL_FILE_HEADER)?new Error("Can't find end of central directory : is this a zip file ? If it is, see https://stuk.github.io/jszip/documentation/howto/read_zip.html"):new Error("Corrupted zip: can't find end of central directory");this.reader.setIndex(e);var t=e;if(this.checkSignature(s.CENTRAL_DIRECTORY_END),this.readBlockEndOfCentral(),this.diskNumber===i.MAX_VALUE_16BITS||this.diskWithCentralDirStart===i.MAX_VALUE_16BITS||this.centralDirRecordsOnThisDisk===i.MAX_VALUE_16BITS||this.centralDirRecords===i.MAX_VALUE_16BITS||this.centralDirSize===i.MAX_VALUE_32BITS||this.centralDirOffset===i.MAX_VALUE_32BITS){if(this.zip64=!0,(e=this.reader.lastIndexOfSignature(s.ZIP64_CENTRAL_DIRECTORY_LOCATOR))<0)throw new Error("Corrupted zip: can't find the ZIP64 end of central directory locator");if(this.reader.setIndex(e),this.checkSignature(s.ZIP64_CENTRAL_DIRECTORY_LOCATOR),this.readBlockZip64EndOfCentralLocator(),!this.isSignature(this.relativeOffsetEndOfZip64CentralDir,s.ZIP64_CENTRAL_DIRECTORY_END)&&(this.relativeOffsetEndOfZip64CentralDir=this.reader.lastIndexOfSignature(s.ZIP64_CENTRAL_DIRECTORY_END),this.relativeOffsetEndOfZip64CentralDir<0))throw new Error("Corrupted zip: can't find the ZIP64 end of central directory");this.reader.setIndex(this.relativeOffsetEndOfZip64CentralDir),this.checkSignature(s.ZIP64_CENTRAL_DIRECTORY_END),this.readBlockZip64EndOfCentral();}var r=this.centralDirOffset+this.centralDirSize;this.zip64&&(r+=20,r+=12+this.zip64EndOfCentralSize);var n=t-r;if(0<n)this.isSignature(t,s.CENTRAL_FILE_HEADER)||(this.reader.zero=n);else if(n<0)throw new Error("Corrupted zip: missing "+Math.abs(n)+" bytes.")},prepareReader:function(e){this.reader=n(e);},load:function(e){this.prepareReader(e),this.readEndOfCentral(),this.readCentralDir(),this.readLocalFiles();}},t.exports=h;},{"./reader/readerFor":22,"./signature":23,"./support":30,"./utils":32,"./zipEntry":34}],34:[function(e,t,r){var n=e("./reader/readerFor"),s=e("./utils"),i=e("./compressedObject"),a=e("./crc32"),o=e("./utf8"),h=e("./compressions"),u=e("./support");function l(e,t){this.options=e,this.loadOptions=t;}l.prototype={isEncrypted:function(){return 1==(1&this.bitFlag)},useUTF8:function(){return 2048==(2048&this.bitFlag)},readLocalPart:function(e){var t,r;if(e.skip(22),this.fileNameLength=e.readInt(2),r=e.readInt(2),this.fileName=e.readData(this.fileNameLength),e.skip(r),-1===this.compressedSize||-1===this.uncompressedSize)throw new Error("Bug or corrupted zip : didn't get enough information from the central directory (compressedSize === -1 || uncompressedSize === -1)");if(null===(t=function(e){for(var t in h)if(Object.prototype.hasOwnProperty.call(h,t)&&h[t].magic===e)return h[t];return null}(this.compressionMethod)))throw new Error("Corrupted zip : compression "+s.pretty(this.compressionMethod)+" unknown (inner file : "+s.transformTo("string",this.fileName)+")");this.decompressed=new i(this.compressedSize,this.uncompressedSize,this.crc32,t,e.readData(this.compressedSize));},readCentralPart:function(e){this.versionMadeBy=e.readInt(2),e.skip(2),this.bitFlag=e.readInt(2),this.compressionMethod=e.readString(2),this.date=e.readDate(),this.crc32=e.readInt(4),this.compressedSize=e.readInt(4),this.uncompressedSize=e.readInt(4);var t=e.readInt(2);if(this.extraFieldsLength=e.readInt(2),this.fileCommentLength=e.readInt(2),this.diskNumberStart=e.readInt(2),this.internalFileAttributes=e.readInt(2),this.externalFileAttributes=e.readInt(4),this.localHeaderOffset=e.readInt(4),this.isEncrypted())throw new Error("Encrypted zip are not supported");e.skip(t),this.readExtraFields(e),this.parseZIP64ExtraField(e),this.fileComment=e.readData(this.fileCommentLength);},processAttributes:function(){this.unixPermissions=null,this.dosPermissions=null;var e=this.versionMadeBy>>8;this.dir=!!(16&this.externalFileAttributes),0==e&&(this.dosPermissions=63&this.externalFileAttributes),3==e&&(this.unixPermissions=this.externalFileAttributes>>16&65535),this.dir||"/"!==this.fileNameStr.slice(-1)||(this.dir=!0);},parseZIP64ExtraField:function(){if(this.extraFields[1]){var e=n(this.extraFields[1].value);this.uncompressedSize===s.MAX_VALUE_32BITS&&(this.uncompressedSize=e.readInt(8)),this.compressedSize===s.MAX_VALUE_32BITS&&(this.compressedSize=e.readInt(8)),this.localHeaderOffset===s.MAX_VALUE_32BITS&&(this.localHeaderOffset=e.readInt(8)),this.diskNumberStart===s.MAX_VALUE_32BITS&&(this.diskNumberStart=e.readInt(4));}},readExtraFields:function(e){var t,r,n,i=e.index+this.extraFieldsLength;for(this.extraFields||(this.extraFields={});e.index+4<i;)t=e.readInt(2),r=e.readInt(2),n=e.readData(r),this.extraFields[t]={id:t,length:r,value:n};e.setIndex(i);},handleUTF8:function(){var e=u.uint8array?"uint8array":"array";if(this.useUTF8())this.fileNameStr=o.utf8decode(this.fileName),this.fileCommentStr=o.utf8decode(this.fileComment);else {var t=this.findExtraFieldUnicodePath();if(null!==t)this.fileNameStr=t;else {var r=s.transformTo(e,this.fileName);this.fileNameStr=this.loadOptions.decodeFileName(r);}var n=this.findExtraFieldUnicodeComment();if(null!==n)this.fileCommentStr=n;else {var i=s.transformTo(e,this.fileComment);this.fileCommentStr=this.loadOptions.decodeFileName(i);}}},findExtraFieldUnicodePath:function(){var e=this.extraFields[28789];if(e){var t=n(e.value);return 1!==t.readInt(1)?null:a(this.fileName)!==t.readInt(4)?null:o.utf8decode(t.readData(e.length-5))}return null},findExtraFieldUnicodeComment:function(){var e=this.extraFields[25461];if(e){var t=n(e.value);return 1!==t.readInt(1)?null:a(this.fileComment)!==t.readInt(4)?null:o.utf8decode(t.readData(e.length-5))}return null}},t.exports=l;},{"./compressedObject":2,"./compressions":3,"./crc32":4,"./reader/readerFor":22,"./support":30,"./utf8":31,"./utils":32}],35:[function(e,t,r){function n(e,t,r){this.name=e,this.dir=r.dir,this.date=r.date,this.comment=r.comment,this.unixPermissions=r.unixPermissions,this.dosPermissions=r.dosPermissions,this._data=t,this._dataBinary=r.binary,this.options={compression:r.compression,compressionOptions:r.compressionOptions};}var s=e("./stream/StreamHelper"),i=e("./stream/DataWorker"),a=e("./utf8"),o=e("./compressedObject"),h=e("./stream/GenericWorker");n.prototype={internalStream:function(e){var t=null,r="string";try{if(!e)throw new Error("No output type specified.");var n="string"===(r=e.toLowerCase())||"text"===r;"binarystring"!==r&&"text"!==r||(r="string"),t=this._decompressWorker();var i=!this._dataBinary;i&&!n&&(t=t.pipe(new a.Utf8EncodeWorker)),!i&&n&&(t=t.pipe(new a.Utf8DecodeWorker));}catch(e){(t=new h("error")).error(e);}return new s(t,r,"")},async:function(e,t){return this.internalStream(e).accumulate(t)},nodeStream:function(e,t){return this.internalStream(e||"nodebuffer").toNodejsStream(t)},_compressWorker:function(e,t){if(this._data instanceof o&&this._data.compression.magic===e.magic)return this._data.getCompressedWorker();var r=this._decompressWorker();return this._dataBinary||(r=r.pipe(new a.Utf8EncodeWorker)),o.createWorkerFrom(r,e,t)},_decompressWorker:function(){return this._data instanceof o?this._data.getContentWorker():this._data instanceof h?this._data:new i(this._data)}};for(var u=["asText","asBinary","asNodeBuffer","asUint8Array","asArrayBuffer"],l=function(){throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.")},f=0;f<u.length;f++)n.prototype[u[f]]=l;t.exports=n;},{"./compressedObject":2,"./stream/DataWorker":27,"./stream/GenericWorker":28,"./stream/StreamHelper":29,"./utf8":31}],36:[function(e,l,t){(function(t){var r,n,e=t.MutationObserver||t.WebKitMutationObserver;if(e){var i=0,s=new e(u),a=t.document.createTextNode("");s.observe(a,{characterData:!0}),r=function(){a.data=i=++i%2;};}else if(t.setImmediate||void 0===t.MessageChannel)r="document"in t&&"onreadystatechange"in t.document.createElement("script")?function(){var e=t.document.createElement("script");e.onreadystatechange=function(){u(),e.onreadystatechange=null,e.parentNode.removeChild(e),e=null;},t.document.documentElement.appendChild(e);}:function(){setTimeout(u,0);};else {var o=new t.MessageChannel;o.port1.onmessage=u,r=function(){o.port2.postMessage(0);};}var h=[];function u(){var e,t;n=!0;for(var r=h.length;r;){for(t=h,h=[],e=-1;++e<r;)t[e]();r=h.length;}n=!1;}l.exports=function(e){1!==h.push(e)||n||r();};}).call(this,"undefined"!=typeof commonjsGlobal?commonjsGlobal:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{});},{}],37:[function(e,t,r){var i=e("immediate");function u(){}var l={},s=["REJECTED"],a=["FULFILLED"],n=["PENDING"];function o(e){if("function"!=typeof e)throw new TypeError("resolver must be a function");this.state=n,this.queue=[],this.outcome=void 0,e!==u&&d(this,e);}function h(e,t,r){this.promise=e,"function"==typeof t&&(this.onFulfilled=t,this.callFulfilled=this.otherCallFulfilled),"function"==typeof r&&(this.onRejected=r,this.callRejected=this.otherCallRejected);}function f(t,r,n){i(function(){var e;try{e=r(n);}catch(e){return l.reject(t,e)}e===t?l.reject(t,new TypeError("Cannot resolve promise with itself")):l.resolve(t,e);});}function c(e){var t=e&&e.then;if(e&&("object"==typeof e||"function"==typeof e)&&"function"==typeof t)return function(){t.apply(e,arguments);}}function d(t,e){var r=!1;function n(e){r||(r=!0,l.reject(t,e));}function i(e){r||(r=!0,l.resolve(t,e));}var s=p(function(){e(i,n);});"error"===s.status&&n(s.value);}function p(e,t){var r={};try{r.value=e(t),r.status="success";}catch(e){r.status="error",r.value=e;}return r}(t.exports=o).prototype.finally=function(t){if("function"!=typeof t)return this;var r=this.constructor;return this.then(function(e){return r.resolve(t()).then(function(){return e})},function(e){return r.resolve(t()).then(function(){throw e})})},o.prototype.catch=function(e){return this.then(null,e)},o.prototype.then=function(e,t){if("function"!=typeof e&&this.state===a||"function"!=typeof t&&this.state===s)return this;var r=new this.constructor(u);this.state!==n?f(r,this.state===a?e:t,this.outcome):this.queue.push(new h(r,e,t));return r},h.prototype.callFulfilled=function(e){l.resolve(this.promise,e);},h.prototype.otherCallFulfilled=function(e){f(this.promise,this.onFulfilled,e);},h.prototype.callRejected=function(e){l.reject(this.promise,e);},h.prototype.otherCallRejected=function(e){f(this.promise,this.onRejected,e);},l.resolve=function(e,t){var r=p(c,t);if("error"===r.status)return l.reject(e,r.value);var n=r.value;if(n)d(e,n);else {e.state=a,e.outcome=t;for(var i=-1,s=e.queue.length;++i<s;)e.queue[i].callFulfilled(t);}return e},l.reject=function(e,t){e.state=s,e.outcome=t;for(var r=-1,n=e.queue.length;++r<n;)e.queue[r].callRejected(t);return e},o.resolve=function(e){if(e instanceof this)return e;return l.resolve(new this(u),e)},o.reject=function(e){var t=new this(u);return l.reject(t,e)},o.all=function(e){var r=this;if("[object Array]"!==Object.prototype.toString.call(e))return this.reject(new TypeError("must be an array"));var n=e.length,i=!1;if(!n)return this.resolve([]);var s=new Array(n),a=0,t=-1,o=new this(u);for(;++t<n;)h(e[t],t);return o;function h(e,t){r.resolve(e).then(function(e){s[t]=e,++a!==n||i||(i=!0,l.resolve(o,s));},function(e){i||(i=!0,l.reject(o,e));});}},o.race=function(e){var t=this;if("[object Array]"!==Object.prototype.toString.call(e))return this.reject(new TypeError("must be an array"));var r=e.length,n=!1;if(!r)return this.resolve([]);var i=-1,s=new this(u);for(;++i<r;)a=e[i],t.resolve(a).then(function(e){n||(n=!0,l.resolve(s,e));},function(e){n||(n=!0,l.reject(s,e));});var a;return s};},{immediate:36}],38:[function(e,t,r){var n={};(0, e("./lib/utils/common").assign)(n,e("./lib/deflate"),e("./lib/inflate"),e("./lib/zlib/constants")),t.exports=n;},{"./lib/deflate":39,"./lib/inflate":40,"./lib/utils/common":41,"./lib/zlib/constants":44}],39:[function(e,t,r){var a=e("./zlib/deflate"),o=e("./utils/common"),h=e("./utils/strings"),i=e("./zlib/messages"),s=e("./zlib/zstream"),u=Object.prototype.toString,l=0,f=-1,c=0,d=8;function p(e){if(!(this instanceof p))return new p(e);this.options=o.assign({level:f,method:d,chunkSize:16384,windowBits:15,memLevel:8,strategy:c,to:""},e||{});var t=this.options;t.raw&&0<t.windowBits?t.windowBits=-t.windowBits:t.gzip&&0<t.windowBits&&t.windowBits<16&&(t.windowBits+=16),this.err=0,this.msg="",this.ended=!1,this.chunks=[],this.strm=new s,this.strm.avail_out=0;var r=a.deflateInit2(this.strm,t.level,t.method,t.windowBits,t.memLevel,t.strategy);if(r!==l)throw new Error(i[r]);if(t.header&&a.deflateSetHeader(this.strm,t.header),t.dictionary){var n;if(n="string"==typeof t.dictionary?h.string2buf(t.dictionary):"[object ArrayBuffer]"===u.call(t.dictionary)?new Uint8Array(t.dictionary):t.dictionary,(r=a.deflateSetDictionary(this.strm,n))!==l)throw new Error(i[r]);this._dict_set=!0;}}function n(e,t){var r=new p(t);if(r.push(e,!0),r.err)throw r.msg||i[r.err];return r.result}p.prototype.push=function(e,t){var r,n,i=this.strm,s=this.options.chunkSize;if(this.ended)return !1;n=t===~~t?t:!0===t?4:0,"string"==typeof e?i.input=h.string2buf(e):"[object ArrayBuffer]"===u.call(e)?i.input=new Uint8Array(e):i.input=e,i.next_in=0,i.avail_in=i.input.length;do{if(0===i.avail_out&&(i.output=new o.Buf8(s),i.next_out=0,i.avail_out=s),1!==(r=a.deflate(i,n))&&r!==l)return this.onEnd(r),!(this.ended=!0);0!==i.avail_out&&(0!==i.avail_in||4!==n&&2!==n)||("string"===this.options.to?this.onData(h.buf2binstring(o.shrinkBuf(i.output,i.next_out))):this.onData(o.shrinkBuf(i.output,i.next_out)));}while((0<i.avail_in||0===i.avail_out)&&1!==r);return 4===n?(r=a.deflateEnd(this.strm),this.onEnd(r),this.ended=!0,r===l):2!==n||(this.onEnd(l),!(i.avail_out=0))},p.prototype.onData=function(e){this.chunks.push(e);},p.prototype.onEnd=function(e){e===l&&("string"===this.options.to?this.result=this.chunks.join(""):this.result=o.flattenChunks(this.chunks)),this.chunks=[],this.err=e,this.msg=this.strm.msg;},r.Deflate=p,r.deflate=n,r.deflateRaw=function(e,t){return (t=t||{}).raw=!0,n(e,t)},r.gzip=function(e,t){return (t=t||{}).gzip=!0,n(e,t)};},{"./utils/common":41,"./utils/strings":42,"./zlib/deflate":46,"./zlib/messages":51,"./zlib/zstream":53}],40:[function(e,t,r){var c=e("./zlib/inflate"),d=e("./utils/common"),p=e("./utils/strings"),m=e("./zlib/constants"),n=e("./zlib/messages"),i=e("./zlib/zstream"),s=e("./zlib/gzheader"),_=Object.prototype.toString;function a(e){if(!(this instanceof a))return new a(e);this.options=d.assign({chunkSize:16384,windowBits:0,to:""},e||{});var t=this.options;t.raw&&0<=t.windowBits&&t.windowBits<16&&(t.windowBits=-t.windowBits,0===t.windowBits&&(t.windowBits=-15)),!(0<=t.windowBits&&t.windowBits<16)||e&&e.windowBits||(t.windowBits+=32),15<t.windowBits&&t.windowBits<48&&0==(15&t.windowBits)&&(t.windowBits|=15),this.err=0,this.msg="",this.ended=!1,this.chunks=[],this.strm=new i,this.strm.avail_out=0;var r=c.inflateInit2(this.strm,t.windowBits);if(r!==m.Z_OK)throw new Error(n[r]);this.header=new s,c.inflateGetHeader(this.strm,this.header);}function o(e,t){var r=new a(t);if(r.push(e,!0),r.err)throw r.msg||n[r.err];return r.result}a.prototype.push=function(e,t){var r,n,i,s,a,o,h=this.strm,u=this.options.chunkSize,l=this.options.dictionary,f=!1;if(this.ended)return !1;n=t===~~t?t:!0===t?m.Z_FINISH:m.Z_NO_FLUSH,"string"==typeof e?h.input=p.binstring2buf(e):"[object ArrayBuffer]"===_.call(e)?h.input=new Uint8Array(e):h.input=e,h.next_in=0,h.avail_in=h.input.length;do{if(0===h.avail_out&&(h.output=new d.Buf8(u),h.next_out=0,h.avail_out=u),(r=c.inflate(h,m.Z_NO_FLUSH))===m.Z_NEED_DICT&&l&&(o="string"==typeof l?p.string2buf(l):"[object ArrayBuffer]"===_.call(l)?new Uint8Array(l):l,r=c.inflateSetDictionary(this.strm,o)),r===m.Z_BUF_ERROR&&!0===f&&(r=m.Z_OK,f=!1),r!==m.Z_STREAM_END&&r!==m.Z_OK)return this.onEnd(r),!(this.ended=!0);h.next_out&&(0!==h.avail_out&&r!==m.Z_STREAM_END&&(0!==h.avail_in||n!==m.Z_FINISH&&n!==m.Z_SYNC_FLUSH)||("string"===this.options.to?(i=p.utf8border(h.output,h.next_out),s=h.next_out-i,a=p.buf2string(h.output,i),h.next_out=s,h.avail_out=u-s,s&&d.arraySet(h.output,h.output,i,s,0),this.onData(a)):this.onData(d.shrinkBuf(h.output,h.next_out)))),0===h.avail_in&&0===h.avail_out&&(f=!0);}while((0<h.avail_in||0===h.avail_out)&&r!==m.Z_STREAM_END);return r===m.Z_STREAM_END&&(n=m.Z_FINISH),n===m.Z_FINISH?(r=c.inflateEnd(this.strm),this.onEnd(r),this.ended=!0,r===m.Z_OK):n!==m.Z_SYNC_FLUSH||(this.onEnd(m.Z_OK),!(h.avail_out=0))},a.prototype.onData=function(e){this.chunks.push(e);},a.prototype.onEnd=function(e){e===m.Z_OK&&("string"===this.options.to?this.result=this.chunks.join(""):this.result=d.flattenChunks(this.chunks)),this.chunks=[],this.err=e,this.msg=this.strm.msg;},r.Inflate=a,r.inflate=o,r.inflateRaw=function(e,t){return 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a=v+(n.w_bits-8<<4)<<8;a|=(2<=n.strategy||n.level<2?0:n.level<6?1:6===n.level?2:3)<<6,0!==n.strstart&&(a|=32),a+=31-a%31,n.status=E,P(n,a),0!==n.strstart&&(P(n,e.adler>>>16),P(n,65535&e.adler)),e.adler=1;}if(69===n.status)if(n.gzhead.extra){for(i=n.pending;n.gzindex<(65535&n.gzhead.extra.length)&&(n.pending!==n.pending_buf_size||(n.gzhead.hcrc&&n.pending>i&&(e.adler=p(e.adler,n.pending_buf,n.pending-i,i)),F(e),i=n.pending,n.pending!==n.pending_buf_size));)U(n,255&n.gzhead.extra[n.gzindex]),n.gzindex++;n.gzhead.hcrc&&n.pending>i&&(e.adler=p(e.adler,n.pending_buf,n.pending-i,i)),n.gzindex===n.gzhead.extra.length&&(n.gzindex=0,n.status=73);}else n.status=73;if(73===n.status)if(n.gzhead.name){i=n.pending;do{if(n.pending===n.pending_buf_size&&(n.gzhead.hcrc&&n.pending>i&&(e.adler=p(e.adler,n.pending_buf,n.pending-i,i)),F(e),i=n.pending,n.pending===n.pending_buf_size)){s=1;break}s=n.gzindex<n.gzhead.name.length?255&n.gzhead.name.charCodeAt(n.gzindex++):0,U(n,s);}while(0!==s);n.gzhead.hcrc&&n.pending>i&&(e.adler=p(e.adler,n.pending_buf,n.pending-i,i)),0===s&&(n.gzindex=0,n.status=91);}else n.status=91;if(91===n.status)if(n.gzhead.comment){i=n.pending;do{if(n.pending===n.pending_buf_size&&(n.gzhead.hcrc&&n.pending>i&&(e.adler=p(e.adler,n.pending_buf,n.pending-i,i)),F(e),i=n.pending,n.pending===n.pending_buf_size)){s=1;break}s=n.gzindex<n.gzhead.comment.length?255&n.gzhead.comment.charCodeAt(n.gzindex++):0,U(n,s);}while(0!==s);n.gzhead.hcrc&&n.pending>i&&(e.adler=p(e.adler,n.pending_buf,n.pending-i,i)),0===s&&(n.status=103);}else n.status=103;if(103===n.status&&(n.gzhead.hcrc?(n.pending+2>n.pending_buf_size&&F(e),n.pending+2<=n.pending_buf_size&&(U(n,255&e.adler),U(n,e.adler>>8&255),e.adler=0,n.status=E)):n.status=E),0!==n.pending){if(F(e),0===e.avail_out)return n.last_flush=-1,m}else if(0===e.avail_in&&T(t)<=T(r)&&t!==f)return R(e,-5);if(666===n.status&&0!==e.avail_in)return R(e,-5);if(0!==e.avail_in||0!==n.lookahead||t!==l&&666!==n.status){var o=2===n.strategy?function(e,t){for(var r;;){if(0===e.lookahead&&(j(e),0===e.lookahead)){if(t===l)return A;break}if(e.match_length=0,r=u._tr_tally(e,0,e.window[e.strstart]),e.lookahead--,e.strstart++,r&&(N(e,!1),0===e.strm.avail_out))return A}return e.insert=0,t===f?(N(e,!0),0===e.strm.avail_out?O:B):e.last_lit&&(N(e,!1),0===e.strm.avail_out)?A:I}(n,t):3===n.strategy?function(e,t){for(var r,n,i,s,a=e.window;;){if(e.lookahead<=S){if(j(e),e.lookahead<=S&&t===l)return A;if(0===e.lookahead)break}if(e.match_length=0,e.lookahead>=x&&0<e.strstart&&(n=a[i=e.strstart-1])===a[++i]&&n===a[++i]&&n===a[++i]){s=e.strstart+S;do{}while(n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&i<s);e.match_length=S-(s-i),e.match_length>e.lookahead&&(e.match_length=e.lookahead);}if(e.match_length>=x?(r=u._tr_tally(e,1,e.match_length-x),e.lookahead-=e.match_length,e.strstart+=e.match_length,e.match_length=0):(r=u._tr_tally(e,0,e.window[e.strstart]),e.lookahead--,e.strstart++),r&&(N(e,!1),0===e.strm.avail_out))return A}return e.insert=0,t===f?(N(e,!0),0===e.strm.avail_out?O:B):e.last_lit&&(N(e,!1),0===e.strm.avail_out)?A:I}(n,t):h[n.level].func(n,t);if(o!==O&&o!==B||(n.status=666),o===A||o===O)return 0===e.avail_out&&(n.last_flush=-1),m;if(o===I&&(1===t?u._tr_align(n):5!==t&&(u._tr_stored_block(n,0,0,!1),3===t&&(D(n.head),0===n.lookahead&&(n.strstart=0,n.block_start=0,n.insert=0))),F(e),0===e.avail_out))return n.last_flush=-1,m}return t!==f?m:n.wrap<=0?1:(2===n.wrap?(U(n,255&e.adler),U(n,e.adler>>8&255),U(n,e.adler>>16&255),U(n,e.adler>>24&255),U(n,255&e.total_in),U(n,e.total_in>>8&255),U(n,e.total_in>>16&255),U(n,e.total_in>>24&255)):(P(n,e.adler>>>16),P(n,65535&e.adler)),F(e),0<n.wrap&&(n.wrap=-n.wrap),0!==n.pending?m:1)},r.deflateEnd=function(e){var t;return e&&e.state?(t=e.state.status)!==C&&69!==t&&73!==t&&91!==t&&103!==t&&t!==E&&666!==t?R(e,_):(e.state=null,t===E?R(e,-3):m):_},r.deflateSetDictionary=function(e,t){var r,n,i,s,a,o,h,u,l=t.length;if(!e||!e.state)return _;if(2===(s=(r=e.state).wrap)||1===s&&r.status!==C||r.lookahead)return _;for(1===s&&(e.adler=d(e.adler,t,l,0)),r.wrap=0,l>=r.w_size&&(0===s&&(D(r.head),r.strstart=0,r.block_start=0,r.insert=0),u=new c.Buf8(r.w_size),c.arraySet(u,t,l-r.w_size,r.w_size,0),t=u,l=r.w_size),a=e.avail_in,o=e.next_in,h=e.input,e.avail_in=l,e.next_in=0,e.input=t,j(r);r.lookahead>=x;){for(n=r.strstart,i=r.lookahead-(x-1);r.ins_h=(r.ins_h<<r.hash_shift^r.window[n+x-1])&r.hash_mask,r.prev[n&r.w_mask]=r.head[r.ins_h],r.head[r.ins_h]=n,n++,--i;);r.strstart=n,r.lookahead=x-1,j(r);}return r.strstart+=r.lookahead,r.block_start=r.strstart,r.insert=r.lookahead,r.lookahead=0,r.match_length=r.prev_length=x-1,r.match_available=0,e.next_in=o,e.input=h,e.avail_in=a,r.wrap=s,m},r.deflateInfo="pako deflate (from Nodeca project)";},{"../utils/common":41,"./adler32":43,"./crc32":45,"./messages":51,"./trees":52}],47:[function(e,t,r){t.exports=function(){this.text=0,this.time=0,this.xflags=0,this.os=0,this.extra=null,this.extra_len=0,this.name="",this.comment="",this.hcrc=0,this.done=!1;};},{}],48:[function(e,t,r){t.exports=function(e,t){var r,n,i,s,a,o,h,u,l,f,c,d,p,m,_,g,b,v,y,w,k,x,S,z,C;r=e.state,n=e.next_in,z=e.input,i=n+(e.avail_in-5),s=e.next_out,C=e.output,a=s-(t-e.avail_out),o=s+(e.avail_out-257),h=r.dmax,u=r.wsize,l=r.whave,f=r.wnext,c=r.window,d=r.hold,p=r.bits,m=r.lencode,_=r.distcode,g=(1<<r.lenbits)-1,b=(1<<r.distbits)-1;e:do{p<15&&(d+=z[n++]<<p,p+=8,d+=z[n++]<<p,p+=8),v=m[d&g];t:for(;;){if(d>>>=y=v>>>24,p-=y,0===(y=v>>>16&255))C[s++]=65535&v;else {if(!(16&y)){if(0==(64&y)){v=m[(65535&v)+(d&(1<<y)-1)];continue t}if(32&y){r.mode=12;break e}e.msg="invalid literal/length code",r.mode=30;break e}w=65535&v,(y&=15)&&(p<y&&(d+=z[n++]<<p,p+=8),w+=d&(1<<y)-1,d>>>=y,p-=y),p<15&&(d+=z[n++]<<p,p+=8,d+=z[n++]<<p,p+=8),v=_[d&b];r:for(;;){if(d>>>=y=v>>>24,p-=y,!(16&(y=v>>>16&255))){if(0==(64&y)){v=_[(65535&v)+(d&(1<<y)-1)];continue r}e.msg="invalid distance code",r.mode=30;break e}if(k=65535&v,p<(y&=15)&&(d+=z[n++]<<p,(p+=8)<y&&(d+=z[n++]<<p,p+=8)),h<(k+=d&(1<<y)-1)){e.msg="invalid distance too far back",r.mode=30;break 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e&&e.state?(n=e.state,t<0?(r=0,t=-t):(r=1+(t>>4),t<48&&(t&=15)),t&&(t<8||15<t)?U:(null!==n.window&&n.wbits!==t&&(n.window=null),n.wrap=r,n.wbits=t,o(e))):U}function u(e,t){var r,n;return e?(n=new s,(e.state=n).window=null,(r=h(e,t))!==N&&(e.state=null),r):U}var l,f,c=!0;function j(e){if(c){var t;for(l=new I.Buf32(512),f=new I.Buf32(32),t=0;t<144;)e.lens[t++]=8;for(;t<256;)e.lens[t++]=9;for(;t<280;)e.lens[t++]=7;for(;t<288;)e.lens[t++]=8;for(T(D,e.lens,0,288,l,0,e.work,{bits:9}),t=0;t<32;)e.lens[t++]=5;T(F,e.lens,0,32,f,0,e.work,{bits:5}),c=!1;}e.lencode=l,e.lenbits=9,e.distcode=f,e.distbits=5;}function Z(e,t,r,n){var i,s=e.state;return null===s.window&&(s.wsize=1<<s.wbits,s.wnext=0,s.whave=0,s.window=new I.Buf8(s.wsize)),n>=s.wsize?(I.arraySet(s.window,t,r-s.wsize,s.wsize,0),s.wnext=0,s.whave=s.wsize):(n<(i=s.wsize-s.wnext)&&(i=n),I.arraySet(s.window,t,r-n,i,s.wnext),(n-=i)?(I.arraySet(s.window,t,r-n,n,0),s.wnext=n,s.whave=s.wsize):(s.wnext+=i,s.wnext===s.wsize&&(s.wnext=0),s.whave<s.wsize&&(s.whave+=i))),0}r.inflateReset=o,r.inflateReset2=h,r.inflateResetKeep=a,r.inflateInit=function(e){return u(e,15)},r.inflateInit2=u,r.inflate=function(e,t){var r,n,i,s,a,o,h,u,l,f,c,d,p,m,_,g,b,v,y,w,k,x,S,z,C=0,E=new I.Buf8(4),A=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];if(!e||!e.state||!e.output||!e.input&&0!==e.avail_in)return U;12===(r=e.state).mode&&(r.mode=13),a=e.next_out,i=e.output,h=e.avail_out,s=e.next_in,n=e.input,o=e.avail_in,u=r.hold,l=r.bits,f=o,c=h,x=N;e:for(;;)switch(r.mode){case P:if(0===r.wrap){r.mode=13;break}for(;l<16;){if(0===o)break 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e;o--,u+=n[s++]<<l,l+=8;}r.head&&(r.head.time=u),512&r.flags&&(E[0]=255&u,E[1]=u>>>8&255,E[2]=u>>>16&255,E[3]=u>>>24&255,r.check=B(r.check,E,4,0)),l=u=0,r.mode=4;case 4:for(;l<16;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}r.head&&(r.head.xflags=255&u,r.head.os=u>>8),512&r.flags&&(E[0]=255&u,E[1]=u>>>8&255,r.check=B(r.check,E,2,0)),l=u=0,r.mode=5;case 5:if(1024&r.flags){for(;l<16;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}r.length=u,r.head&&(r.head.extra_len=u),512&r.flags&&(E[0]=255&u,E[1]=u>>>8&255,r.check=B(r.check,E,2,0)),l=u=0;}else r.head&&(r.head.extra=null);r.mode=6;case 6:if(1024&r.flags&&(o<(d=r.length)&&(d=o),d&&(r.head&&(k=r.head.extra_len-r.length,r.head.extra||(r.head.extra=new Array(r.head.extra_len)),I.arraySet(r.head.extra,n,s,d,k)),512&r.flags&&(r.check=B(r.check,n,d,s)),o-=d,s+=d,r.length-=d),r.length))break e;r.length=0,r.mode=7;case 7:if(2048&r.flags){if(0===o)break e;for(d=0;k=n[s+d++],r.head&&k&&r.length<65536&&(r.head.name+=String.fromCharCode(k)),k&&d<o;);if(512&r.flags&&(r.check=B(r.check,n,d,s)),o-=d,s+=d,k)break e}else r.head&&(r.head.name=null);r.length=0,r.mode=8;case 8:if(4096&r.flags){if(0===o)break e;for(d=0;k=n[s+d++],r.head&&k&&r.length<65536&&(r.head.comment+=String.fromCharCode(k)),k&&d<o;);if(512&r.flags&&(r.check=B(r.check,n,d,s)),o-=d,s+=d,k)break e}else r.head&&(r.head.comment=null);r.mode=9;case 9:if(512&r.flags){for(;l<16;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}if(u!==(65535&r.check)){e.msg="header crc mismatch",r.mode=30;break}l=u=0;}r.head&&(r.head.hcrc=r.flags>>9&1,r.head.done=!0),e.adler=r.check=0,r.mode=12;break;case 10:for(;l<32;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}e.adler=r.check=L(u),l=u=0,r.mode=11;case 11:if(0===r.havedict)return e.next_out=a,e.avail_out=h,e.next_in=s,e.avail_in=o,r.hold=u,r.bits=l,2;e.adler=r.check=1,r.mode=12;case 12:if(5===t||6===t)break e;case 13:if(r.last){u>>>=7&l,l-=7&l,r.mode=27;break}for(;l<3;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}switch(r.last=1&u,l-=1,3&(u>>>=1)){case 0:r.mode=14;break;case 1:if(j(r),r.mode=20,6!==t)break;u>>>=2,l-=2;break e;case 2:r.mode=17;break;case 3:e.msg="invalid block type",r.mode=30;}u>>>=2,l-=2;break;case 14:for(u>>>=7&l,l-=7&l;l<32;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}if((65535&u)!=(u>>>16^65535)){e.msg="invalid stored block lengths",r.mode=30;break}if(r.length=65535&u,l=u=0,r.mode=15,6===t)break e;case 15:r.mode=16;case 16:if(d=r.length){if(o<d&&(d=o),h<d&&(d=h),0===d)break e;I.arraySet(i,n,s,d,a),o-=d,s+=d,h-=d,a+=d,r.length-=d;break}r.mode=12;break;case 17:for(;l<14;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}if(r.nlen=257+(31&u),u>>>=5,l-=5,r.ndist=1+(31&u),u>>>=5,l-=5,r.ncode=4+(15&u),u>>>=4,l-=4,286<r.nlen||30<r.ndist){e.msg="too many length or distance symbols",r.mode=30;break}r.have=0,r.mode=18;case 18:for(;r.have<r.ncode;){for(;l<3;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}r.lens[A[r.have++]]=7&u,u>>>=3,l-=3;}for(;r.have<19;)r.lens[A[r.have++]]=0;if(r.lencode=r.lendyn,r.lenbits=7,S={bits:r.lenbits},x=T(0,r.lens,0,19,r.lencode,0,r.work,S),r.lenbits=S.bits,x){e.msg="invalid code lengths set",r.mode=30;break}r.have=0,r.mode=19;case 19:for(;r.have<r.nlen+r.ndist;){for(;g=(C=r.lencode[u&(1<<r.lenbits)-1])>>>16&255,b=65535&C,!((_=C>>>24)<=l);){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}if(b<16)u>>>=_,l-=_,r.lens[r.have++]=b;else {if(16===b){for(z=_+2;l<z;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}if(u>>>=_,l-=_,0===r.have){e.msg="invalid bit length repeat",r.mode=30;break}k=r.lens[r.have-1],d=3+(3&u),u>>>=2,l-=2;}else if(17===b){for(z=_+3;l<z;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}l-=_,k=0,d=3+(7&(u>>>=_)),u>>>=3,l-=3;}else {for(z=_+7;l<z;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}l-=_,k=0,d=11+(127&(u>>>=_)),u>>>=7,l-=7;}if(r.have+d>r.nlen+r.ndist){e.msg="invalid bit length repeat",r.mode=30;break}for(;d--;)r.lens[r.have++]=k;}}if(30===r.mode)break;if(0===r.lens[256]){e.msg="invalid code -- missing end-of-block",r.mode=30;break}if(r.lenbits=9,S={bits:r.lenbits},x=T(D,r.lens,0,r.nlen,r.lencode,0,r.work,S),r.lenbits=S.bits,x){e.msg="invalid literal/lengths set",r.mode=30;break}if(r.distbits=6,r.distcode=r.distdyn,S={bits:r.distbits},x=T(F,r.lens,r.nlen,r.ndist,r.distcode,0,r.work,S),r.distbits=S.bits,x){e.msg="invalid distances set",r.mode=30;break}if(r.mode=20,6===t)break e;case 20:r.mode=21;case 21:if(6<=o&&258<=h){e.next_out=a,e.avail_out=h,e.next_in=s,e.avail_in=o,r.hold=u,r.bits=l,R(e,c),a=e.next_out,i=e.output,h=e.avail_out,s=e.next_in,n=e.input,o=e.avail_in,u=r.hold,l=r.bits,12===r.mode&&(r.back=-1);break}for(r.back=0;g=(C=r.lencode[u&(1<<r.lenbits)-1])>>>16&255,b=65535&C,!((_=C>>>24)<=l);){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}if(g&&0==(240&g)){for(v=_,y=g,w=b;g=(C=r.lencode[w+((u&(1<<v+y)-1)>>v)])>>>16&255,b=65535&C,!(v+(_=C>>>24)<=l);){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}u>>>=v,l-=v,r.back+=v;}if(u>>>=_,l-=_,r.back+=_,r.length=b,0===g){r.mode=26;break}if(32&g){r.back=-1,r.mode=12;break}if(64&g){e.msg="invalid literal/length code",r.mode=30;break}r.extra=15&g,r.mode=22;case 22:if(r.extra){for(z=r.extra;l<z;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}r.length+=u&(1<<r.extra)-1,u>>>=r.extra,l-=r.extra,r.back+=r.extra;}r.was=r.length,r.mode=23;case 23:for(;g=(C=r.distcode[u&(1<<r.distbits)-1])>>>16&255,b=65535&C,!((_=C>>>24)<=l);){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}if(0==(240&g)){for(v=_,y=g,w=b;g=(C=r.distcode[w+((u&(1<<v+y)-1)>>v)])>>>16&255,b=65535&C,!(v+(_=C>>>24)<=l);){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}u>>>=v,l-=v,r.back+=v;}if(u>>>=_,l-=_,r.back+=_,64&g){e.msg="invalid distance code",r.mode=30;break}r.offset=b,r.extra=15&g,r.mode=24;case 24:if(r.extra){for(z=r.extra;l<z;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}r.offset+=u&(1<<r.extra)-1,u>>>=r.extra,l-=r.extra,r.back+=r.extra;}if(r.offset>r.dmax){e.msg="invalid distance too far back",r.mode=30;break}r.mode=25;case 25:if(0===h)break e;if(d=c-h,r.offset>d){if((d=r.offset-d)>r.whave&&r.sane){e.msg="invalid distance too far back",r.mode=30;break}p=d>r.wnext?(d-=r.wnext,r.wsize-d):r.wnext-d,d>r.length&&(d=r.length),m=r.window;}else m=i,p=a-r.offset,d=r.length;for(h<d&&(d=h),h-=d,r.length-=d;i[a++]=m[p++],--d;);0===r.length&&(r.mode=21);break;case 26:if(0===h)break e;i[a++]=r.length,h--,r.mode=21;break;case 27:if(r.wrap){for(;l<32;){if(0===o)break e;o--,u|=n[s++]<<l,l+=8;}if(c-=h,e.total_out+=c,r.total+=c,c&&(e.adler=r.check=r.flags?B(r.check,i,c,a-c):O(r.check,i,c,a-c)),c=h,(r.flags?u:L(u))!==r.check){e.msg="incorrect data check",r.mode=30;break}l=u=0;}r.mode=28;case 28:if(r.wrap&&r.flags){for(;l<32;){if(0===o)break e;o--,u+=n[s++]<<l,l+=8;}if(u!==(4294967295&r.total)){e.msg="incorrect length check",r.mode=30;break}l=u=0;}r.mode=29;case 29:x=1;break e;case 30:x=-3;break e;case 31:return -4;case 32:default:return U}return e.next_out=a,e.avail_out=h,e.next_in=s,e.avail_in=o,r.hold=u,r.bits=l,(r.wsize||c!==e.avail_out&&r.mode<30&&(r.mode<27||4!==t))&&Z(e,e.output,e.next_out,c-e.avail_out)?(r.mode=31,-4):(f-=e.avail_in,c-=e.avail_out,e.total_in+=f,e.total_out+=c,r.total+=c,r.wrap&&c&&(e.adler=r.check=r.flags?B(r.check,i,c,e.next_out-c):O(r.check,i,c,e.next_out-c)),e.data_type=r.bits+(r.last?64:0)+(12===r.mode?128:0)+(20===r.mode||15===r.mode?256:0),(0==f&&0===c||4===t)&&x===N&&(x=-5),x)},r.inflateEnd=function(e){if(!e||!e.state)return U;var t=e.state;return t.window&&(t.window=null),e.state=null,N},r.inflateGetHeader=function(e,t){var r;return e&&e.state?0==(2&(r=e.state).wrap)?U:((r.head=t).done=!1,N):U},r.inflateSetDictionary=function(e,t){var r,n=t.length;return e&&e.state?0!==(r=e.state).wrap&&11!==r.mode?U:11===r.mode&&O(1,t,n,0)!==r.check?-3:Z(e,t,n,n)?(r.mode=31,-4):(r.havedict=1,N):U},r.inflateInfo="pako inflate (from Nodeca project)";},{"../utils/common":41,"./adler32":43,"./crc32":45,"./inffast":48,"./inftrees":50}],50:[function(e,t,r){var D=e("../utils/common"),F=[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,0,0],N=[16,16,16,16,16,16,16,16,17,17,17,17,18,18,18,18,19,19,19,19,20,20,20,20,21,21,21,21,16,72,78],U=[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0],P=[16,16,16,16,17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,64,64];t.exports=function(e,t,r,n,i,s,a,o){var h,u,l,f,c,d,p,m,_,g=o.bits,b=0,v=0,y=0,w=0,k=0,x=0,S=0,z=0,C=0,E=0,A=null,I=0,O=new D.Buf16(16),B=new D.Buf16(16),R=null,T=0;for(b=0;b<=15;b++)O[b]=0;for(v=0;v<n;v++)O[t[r+v]]++;for(k=g,w=15;1<=w&&0===O[w];w--);if(w<k&&(k=w),0===w)return i[s++]=20971520,i[s++]=20971520,o.bits=1,0;for(y=1;y<w&&0===O[y];y++);for(k<y&&(k=y),b=z=1;b<=15;b++)if(z<<=1,(z-=O[b])<0)return -1;if(0<z&&(0===e||1!==w))return -1;for(B[1]=0,b=1;b<15;b++)B[b+1]=B[b]+O[b];for(v=0;v<n;v++)0!==t[r+v]&&(a[B[t[r+v]]++]=v);if(d=0===e?(A=R=a,19):1===e?(A=F,I-=257,R=N,T-=257,256):(A=U,R=P,-1),b=y,c=s,S=v=E=0,l=-1,f=(C=1<<(x=k))-1,1===e&&852<C||2===e&&592<C)return 1;for(;;){for(p=b-S,_=a[v]<d?(m=0,a[v]):a[v]>d?(m=R[T+a[v]],A[I+a[v]]):(m=96,0),h=1<<b-S,y=u=1<<x;i[c+(E>>S)+(u-=h)]=p<<24|m<<16|_|0,0!==u;);for(h=1<<b-1;E&h;)h>>=1;if(0!==h?(E&=h-1,E+=h):E=0,v++,0==--O[b]){if(b===w)break;b=t[r+a[v]];}if(k<b&&(E&f)!==l){for(0===S&&(S=k),c+=y,z=1<<(x=b-S);x+S<w&&!((z-=O[x+S])<=0);)x++,z<<=1;if(C+=1<<x,1===e&&852<C||2===e&&592<C)return 1;i[l=E&f]=k<<24|x<<16|c-s|0;}}return 0!==E&&(i[c+E]=b-S<<24|64<<16|0),o.bits=k,0};},{"../utils/common":41}],51:[function(e,t,r){t.exports={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream error","-3":"data error","-4":"insufficient memory","-5":"buffer error","-6":"incompatible version"};},{}],52:[function(e,t,r){var i=e("../utils/common"),o=0,h=1;function n(e){for(var t=e.length;0<=--t;)e[t]=0;}var s=0,a=29,u=256,l=u+1+a,f=30,c=19,_=2*l+1,g=15,d=16,p=7,m=256,b=16,v=17,y=18,w=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0],k=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13],x=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7],S=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],z=new Array(2*(l+2));n(z);var C=new Array(2*f);n(C);var E=new Array(512);n(E);var A=new Array(256);n(A);var I=new Array(a);n(I);var O,B,R,T=new Array(f);function D(e,t,r,n,i){this.static_tree=e,this.extra_bits=t,this.extra_base=r,this.elems=n,this.max_length=i,this.has_stree=e&&e.length;}function F(e,t){this.dyn_tree=e,this.max_code=0,this.stat_desc=t;}function N(e){return e<256?E[e]:E[256+(e>>>7)]}function U(e,t){e.pending_buf[e.pending++]=255&t,e.pending_buf[e.pending++]=t>>>8&255;}function P(e,t,r){e.bi_valid>d-r?(e.bi_buf|=t<<e.bi_valid&65535,U(e,e.bi_buf),e.bi_buf=t>>d-e.bi_valid,e.bi_valid+=r-d):(e.bi_buf|=t<<e.bi_valid&65535,e.bi_valid+=r);}function L(e,t,r){P(e,r[2*t],r[2*t+1]);}function j(e,t){for(var r=0;r|=1&e,e>>>=1,r<<=1,0<--t;);return r>>>1}function Z(e,t,r){var n,i,s=new Array(g+1),a=0;for(n=1;n<=g;n++)s[n]=a=a+r[n-1]<<1;for(i=0;i<=t;i++){var o=e[2*i+1];0!==o&&(e[2*i]=j(s[o]++,o));}}function W(e){var t;for(t=0;t<l;t++)e.dyn_ltree[2*t]=0;for(t=0;t<f;t++)e.dyn_dtree[2*t]=0;for(t=0;t<c;t++)e.bl_tree[2*t]=0;e.dyn_ltree[2*m]=1,e.opt_len=e.static_len=0,e.last_lit=e.matches=0;}function M(e){8<e.bi_valid?U(e,e.bi_buf):0<e.bi_valid&&(e.pending_buf[e.pending++]=e.bi_buf),e.bi_buf=0,e.bi_valid=0;}function H(e,t,r,n){var i=2*t,s=2*r;return e[i]<e[s]||e[i]===e[s]&&n[t]<=n[r]}function G(e,t,r){for(var n=e.heap[r],i=r<<1;i<=e.heap_len&&(i<e.heap_len&&H(t,e.heap[i+1],e.heap[i],e.depth)&&i++,!H(t,n,e.heap[i],e.depth));)e.heap[r]=e.heap[i],r=i,i<<=1;e.heap[r]=n;}function K(e,t,r){var n,i,s,a,o=0;if(0!==e.last_lit)for(;n=e.pending_buf[e.d_buf+2*o]<<8|e.pending_buf[e.d_buf+2*o+1],i=e.pending_buf[e.l_buf+o],o++,0===n?L(e,i,t):(L(e,(s=A[i])+u+1,t),0!==(a=w[s])&&P(e,i-=I[s],a),L(e,s=N(--n),r),0!==(a=k[s])&&P(e,n-=T[s],a)),o<e.last_lit;);L(e,m,t);}function Y(e,t){var r,n,i,s=t.dyn_tree,a=t.stat_desc.static_tree,o=t.stat_desc.has_stree,h=t.stat_desc.elems,u=-1;for(e.heap_len=0,e.heap_max=_,r=0;r<h;r++)0!==s[2*r]?(e.heap[++e.heap_len]=u=r,e.depth[r]=0):s[2*r+1]=0;for(;e.heap_len<2;)s[2*(i=e.heap[++e.heap_len]=u<2?++u:0)]=1,e.depth[i]=0,e.opt_len--,o&&(e.static_len-=a[2*i+1]);for(t.max_code=u,r=e.heap_len>>1;1<=r;r--)G(e,s,r);for(i=h;r=e.heap[1],e.heap[1]=e.heap[e.heap_len--],G(e,s,1),n=e.heap[1],e.heap[--e.heap_max]=r,e.heap[--e.heap_max]=n,s[2*i]=s[2*r]+s[2*n],e.depth[i]=(e.depth[r]>=e.depth[n]?e.depth[r]:e.depth[n])+1,s[2*r+1]=s[2*n+1]=i,e.heap[1]=i++,G(e,s,1),2<=e.heap_len;);e.heap[--e.heap_max]=e.heap[1],function(e,t){var r,n,i,s,a,o,h=t.dyn_tree,u=t.max_code,l=t.stat_desc.static_tree,f=t.stat_desc.has_stree,c=t.stat_desc.extra_bits,d=t.stat_desc.extra_base,p=t.stat_desc.max_length,m=0;for(s=0;s<=g;s++)e.bl_count[s]=0;for(h[2*e.heap[e.heap_max]+1]=0,r=e.heap_max+1;r<_;r++)p<(s=h[2*h[2*(n=e.heap[r])+1]+1]+1)&&(s=p,m++),h[2*n+1]=s,u<n||(e.bl_count[s]++,a=0,d<=n&&(a=c[n-d]),o=h[2*n],e.opt_len+=o*(s+a),f&&(e.static_len+=o*(l[2*n+1]+a)));if(0!==m){do{for(s=p-1;0===e.bl_count[s];)s--;e.bl_count[s]--,e.bl_count[s+1]+=2,e.bl_count[p]--,m-=2;}while(0<m);for(s=p;0!==s;s--)for(n=e.bl_count[s];0!==n;)u<(i=e.heap[--r])||(h[2*i+1]!==s&&(e.opt_len+=(s-h[2*i+1])*h[2*i],h[2*i+1]=s),n--);}}(e,t),Z(s,u,e.bl_count);}function X(e,t,r){var n,i,s=-1,a=t[1],o=0,h=7,u=4;for(0===a&&(h=138,u=3),t[2*(r+1)+1]=65535,n=0;n<=r;n++)i=a,a=t[2*(n+1)+1],++o<h&&i===a||(o<u?e.bl_tree[2*i]+=o:0!==i?(i!==s&&e.bl_tree[2*i]++,e.bl_tree[2*b]++):o<=10?e.bl_tree[2*v]++:e.bl_tree[2*y]++,s=i,u=(o=0)===a?(h=138,3):i===a?(h=6,3):(h=7,4));}function 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    } (jszip_min));

    var jszip_minExports = jszip_min.exports;
    var JSZip = /*@__PURE__*/getDefaultExportFromCjs(jszip_minExports);

    /* src\PictureSubtitlesbasedonYTTranscript.svelte generated by Svelte v3.59.2 */

    const { console: console_1 } = globals;

    const file$4 = "src\\PictureSubtitlesbasedonYTTranscript.svelte";

    function get_each_context$2(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[25] = list[i];
    	return child_ctx;
    }

    function get_each_context_1$1(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[28] = list[i];
    	return child_ctx;
    }

    // (168:6) {#each subtitleData.images as image}
    function create_each_block_1$1(ctx) {
    	let img;
    	let img_src_value;

    	const block = {
    		c: function create() {
    			img = element("img");
    			if (!src_url_equal(img.src, img_src_value = /*image*/ ctx[28])) attr_dev(img, "src", img_src_value);
    			attr_dev(img, "alt", "Subtitle Image");
    			add_location(img, file$4, 168, 8, 5640);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, img, anchor);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*subtitlesOutput*/ 2 && !src_url_equal(img.src, img_src_value = /*image*/ ctx[28])) {
    				attr_dev(img, "src", img_src_value);
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(img);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1$1.name,
    		type: "each",
    		source: "(168:6) {#each subtitleData.images as image}",
    		ctx
    	});

    	return block;
    }

    // (165:2) {#each subtitlesOutput as subtitleData}
    function create_each_block$2(ctx) {
    	let div;
    	let p;
    	let t0_value = /*subtitleData*/ ctx[25].text + "";
    	let t0;
    	let t1;
    	let t2;
    	let each_value_1 = /*subtitleData*/ ctx[25].images;
    	validate_each_argument(each_value_1);
    	let each_blocks = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks[i] = create_each_block_1$1(get_each_context_1$1(ctx, each_value_1, i));
    	}

    	const block = {
    		c: function create() {
    			div = element("div");
    			p = element("p");
    			t0 = text(t0_value);
    			t1 = space();

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t2 = space();
    			add_location(p, file$4, 166, 6, 5560);
    			add_location(div, file$4, 165, 4, 5547);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, p);
    			append_dev(p, t0);
    			append_dev(div, t1);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div, null);
    				}
    			}

    			append_dev(div, t2);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*subtitlesOutput*/ 2 && t0_value !== (t0_value = /*subtitleData*/ ctx[25].text + "")) set_data_dev(t0, t0_value);

    			if (dirty & /*subtitlesOutput*/ 2) {
    				each_value_1 = /*subtitleData*/ ctx[25].images;
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1$1(ctx, each_value_1, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block_1$1(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(div, t2);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value_1.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			destroy_each(each_blocks, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$2.name,
    		type: "each",
    		source: "(165:2) {#each subtitlesOutput as subtitleData}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$4(ctx) {
    	let div;
    	let p;
    	let t1;
    	let label0;
    	let input0;
    	let t2;
    	let br0;
    	let t3;
    	let input1;
    	let t4;
    	let button0;
    	let t6;
    	let progress_1;
    	let t7;
    	let span;
    	let t8_value = Math.round(/*progress*/ ctx[2]) + "";
    	let t8;
    	let t9;
    	let t10;
    	let t11;
    	let t12;
    	let button1;
    	let t13_value = (/*$paused*/ ctx[8] ? 'Resume' : 'Pause') + "";
    	let t13;
    	let t14;
    	let button2;
    	let t16;
    	let label1;
    	let input2;
    	let t17;
    	let t18;
    	let t19;
    	let t20;
    	let t21;
    	let t22;
    	let br1;
    	let t23;
    	let t24;
    	let t25;
    	let mounted;
    	let dispose;
    	let each_value = /*subtitlesOutput*/ ctx[1];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$2(get_each_context$2(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			div = element("div");
    			p = element("p");
    			p.textContent = "Picture + Formatted Subtitles ||| Figure out how to use ella to make collages";
    			t1 = space();
    			label0 = element("label");
    			input0 = element("input");
    			t2 = text("\r\n    Load and play video in Youtube player (tick before load subtitles)\r\n  ");
    			br0 = element("br");
    			t3 = space();
    			input1 = element("input");
    			t4 = space();
    			button0 = element("button");
    			button0.textContent = "Load Subtitles";
    			t6 = space();
    			progress_1 = element("progress");
    			t7 = space();
    			span = element("span");
    			t8 = text(t8_value);
    			t9 = text("%");
    			t10 = text("\r\n  | ");
    			t11 = text(/*totalDuration*/ ctx[3]);
    			t12 = space();
    			button1 = element("button");
    			t13 = text(t13_value);
    			t14 = space();
    			button2 = element("button");
    			button2.textContent = "Restart";
    			t16 = space();
    			label1 = element("label");
    			input2 = element("input");
    			t17 = text("\r\n    Show only current subtitle");
    			t18 = text("\r\n  Title: ");
    			t19 = text(/*subtitleVideoTitle*/ ctx[6]);
    			t20 = text(" Video Time: ");
    			t21 = text(/*uiTimeStatus*/ ctx[5]);
    			t22 = space();
    			br1 = element("br");
    			t23 = text(" | ");
    			t24 = text(/*uistatusupdate*/ ctx[4]);
    			t25 = space();

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(p, file$4, 146, 2, 4674);
    			attr_dev(input0, "type", "checkbox");
    			add_location(input0, file$4, 148, 4, 4775);
    			add_location(label0, file$4, 147, 2, 4762);
    			add_location(br0, file$4, 150, 10, 4915);
    			attr_dev(input1, "type", "file");
    			attr_dev(input1, "accept", ".zip");
    			add_location(input1, file$4, 151, 2, 4923);
    			add_location(button0, file$4, 152, 2, 5007);
    			progress_1.value = /*progress*/ ctx[2];
    			attr_dev(progress_1, "max", "100");
    			add_location(progress_1, file$4, 153, 2, 5070);
    			add_location(span, file$4, 154, 2, 5122);
    			add_location(button1, file$4, 156, 2, 5183);
    			add_location(button2, file$4, 157, 2, 5251);
    			attr_dev(input2, "type", "checkbox");
    			add_location(input2, file$4, 159, 4, 5309);
    			add_location(label1, file$4, 158, 2, 5296);
    			add_location(br1, file$4, 162, 57, 5473);
    			attr_dev(div, "class", "borderdiv svelte-gwzbee");
    			add_location(div, file$4, 145, 0, 4647);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, p);
    			append_dev(div, t1);
    			append_dev(div, label0);
    			append_dev(label0, input0);
    			input0.checked = /*$ytsubuseplayer*/ ctx[9];
    			append_dev(label0, t2);
    			append_dev(div, br0);
    			append_dev(div, t3);
    			append_dev(div, input1);
    			append_dev(div, t4);
    			append_dev(div, button0);
    			append_dev(div, t6);
    			append_dev(div, progress_1);
    			append_dev(div, t7);
    			append_dev(div, span);
    			append_dev(span, t8);
    			append_dev(span, t9);
    			append_dev(div, t10);
    			append_dev(div, t11);
    			append_dev(div, t12);
    			append_dev(div, button1);
    			append_dev(button1, t13);
    			append_dev(div, t14);
    			append_dev(div, button2);
    			append_dev(div, t16);
    			append_dev(div, label1);
    			append_dev(label1, input2);
    			input2.checked = /*$onlyCurrentSubtitle*/ ctx[7];
    			append_dev(label1, t17);
    			append_dev(div, t18);
    			append_dev(div, t19);
    			append_dev(div, t20);
    			append_dev(div, t21);
    			append_dev(div, t22);
    			append_dev(div, br1);
    			append_dev(div, t23);
    			append_dev(div, t24);
    			append_dev(div, t25);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div, null);
    				}
    			}

    			if (!mounted) {
    				dispose = [
    					listen_dev(input0, "change", /*input0_change_handler*/ ctx[16]),
    					listen_dev(input1, "change", /*change_handler*/ ctx[17], false, false, false, false),
    					listen_dev(button0, "click", /*handleFileUpload*/ ctx[13], false, false, false, false),
    					listen_dev(button1, "click", /*pause*/ ctx[14], false, false, false, false),
    					listen_dev(button2, "click", /*reset*/ ctx[15], false, false, false, false),
    					listen_dev(input2, "change", /*input2_change_handler*/ ctx[18])
    				];

    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*$ytsubuseplayer*/ 512) {
    				input0.checked = /*$ytsubuseplayer*/ ctx[9];
    			}

    			if (dirty & /*progress*/ 4) {
    				prop_dev(progress_1, "value", /*progress*/ ctx[2]);
    			}

    			if (dirty & /*progress*/ 4 && t8_value !== (t8_value = Math.round(/*progress*/ ctx[2]) + "")) set_data_dev(t8, t8_value);
    			if (dirty & /*totalDuration*/ 8) set_data_dev(t11, /*totalDuration*/ ctx[3]);
    			if (dirty & /*$paused*/ 256 && t13_value !== (t13_value = (/*$paused*/ ctx[8] ? 'Resume' : 'Pause') + "")) set_data_dev(t13, t13_value);

    			if (dirty & /*$onlyCurrentSubtitle*/ 128) {
    				input2.checked = /*$onlyCurrentSubtitle*/ ctx[7];
    			}

    			if (dirty & /*subtitleVideoTitle*/ 64) set_data_dev(t19, /*subtitleVideoTitle*/ ctx[6]);
    			if (dirty & /*uiTimeStatus*/ 32) set_data_dev(t21, /*uiTimeStatus*/ ctx[5]);
    			if (dirty & /*uistatusupdate*/ 16) set_data_dev(t24, /*uistatusupdate*/ ctx[4]);

    			if (dirty & /*subtitlesOutput*/ 2) {
    				each_value = /*subtitlesOutput*/ ctx[1];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$2(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$2(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(div, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			run_all(dispose);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$4.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$4($$self, $$props, $$invalidate) {
    	let $onlyCurrentSubtitle;
    	let $restart;
    	let $paused;
    	let $ytsubcurrenttext;
    	let $ytsubcurrentID;
    	let $ytsubuseplayer;
    	validate_store(ytsubcurrenttext, 'ytsubcurrenttext');
    	component_subscribe($$self, ytsubcurrenttext, $$value => $$invalidate(21, $ytsubcurrenttext = $$value));
    	validate_store(ytsubcurrentID, 'ytsubcurrentID');
    	component_subscribe($$self, ytsubcurrentID, $$value => $$invalidate(22, $ytsubcurrentID = $$value));
    	validate_store(ytsubuseplayer, 'ytsubuseplayer');
    	component_subscribe($$self, ytsubuseplayer, $$value => $$invalidate(9, $ytsubuseplayer = $$value));
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('PictureSubtitlesbasedonYTTranscript', slots, []);
    	let zipFile;
    	let subtitlesOutput = []; //writable([]);
    	let currentTime = writable(0); // Track current time
    	let paused = writable(false); // Control pause state
    	validate_store(paused, 'paused');
    	component_subscribe($$self, paused, value => $$invalidate(8, $paused = value));
    	let restart = writable(false); // Signal to restart
    	validate_store(restart, 'restart');
    	component_subscribe($$self, restart, value => $$invalidate(20, $restart = value));
    	let onlyCurrentSubtitle = writable(false); // Control subtitle display mode
    	validate_store(onlyCurrentSubtitle, 'onlyCurrentSubtitle');
    	component_subscribe($$self, onlyCurrentSubtitle, value => $$invalidate(7, $onlyCurrentSubtitle = value));
    	let progress = 0;
    	let totalDuration = 0;

    	//let useYTPlayer = writable(false);
    	let uistatusupdate = null;

    	let uiTimeStatus = 0;
    	let subtitleVideoDetailsFileData = null;
    	let subtitleVideoTitle = null;

    	async function handleFileUpload() {
    		// Reset the component state
    		$$invalidate(1, subtitlesOutput = []);

    		currentTime.set(0);
    		paused.set(false);
    		restart.set(false);
    		onlyCurrentSubtitle.set(false);
    		$$invalidate(2, progress = 0);
    		$$invalidate(3, totalDuration = 0);

    		if (!zipFile) {
    			console.log('No zip file selected');
    			return;
    		}

    		const zip = new JSZip();
    		const contents = await zip.loadAsync(zipFile);
    		console.log('Zip file loaded');
    		const subtitlesFile = await contents.file('preprocessed_subtitles.json').async('text');
    		const subtitlesVideoDetailsFile = await contents.file('YTTVideoInfo.txt');

    		if (subtitlesVideoDetailsFile) {
    			const textContent = await subtitlesVideoDetailsFile.async('text');

    			try {
    				subtitleVideoDetailsFileData = JSON.parse(textContent);
    				console.log(subtitleVideoDetailsFileData["video_id"]);

    				if ($ytsubuseplayer) {
    					set_store_value(ytsubcurrentID, $ytsubcurrentID = subtitleVideoDetailsFileData["video_id"], $ytsubcurrentID);
    				}

    				$$invalidate(6, subtitleVideoTitle = subtitleVideoDetailsFileData["title"]);
    			} catch(error) {
    				console.error('Error parsing JSON:', error);
    			}
    		} else {
    			console.error('Text file not found in the ZIP file.');
    		}

    		const preprocessedSubtitles = JSON.parse(subtitlesFile);
    		preprocessedSubtitles.sort((a, b) => a.start - b.start);
    		console.log('Subtitles parsed and sorted');
    		$$invalidate(4, uistatusupdate = 'Subtitles parsed and sorted - Syncing to time has started');
    		let localTime = 0;
    		let i = 0;

    		const displayNextSubtitle = async () => {
    			console.log('Starting displayNextSubtitle');
    			$$invalidate(3, totalDuration = preprocessedSubtitles.reduce((total, subtitle) => total + subtitle.duration, 0));

    			while (i < preprocessedSubtitles.length) {
    				const subtitle = preprocessedSubtitles[i];
    				console.log('Current subtitle:', subtitle);
    				set_store_value(ytsubcurrenttext, $ytsubcurrenttext = subtitle.text, $ytsubcurrenttext);

    				if (localTime < subtitle.start) {
    					await new Promise(resolve => setTimeout(resolve, (subtitle.start - localTime) * 1000));
    					console.log('Waited for subtitle start time');
    				}

    				if ($paused) {
    					await new Promise(resolve => paused.subscribe(value => !value && resolve()));
    					console.log('Resumed from pause');
    				}

    				if ($restart) {
    					localTime = 0;
    					i = 0;
    					$$invalidate(1, subtitlesOutput = []);
    					restart.set(false);
    					console.log('Restarted subtitles');
    					continue;
    				}

    				const images = await Promise.all(subtitle.image_paths.map(async path => URL.createObjectURL(await contents.file(path).async('blob'))));

    				if ($onlyCurrentSubtitle) {
    					$$invalidate(1, subtitlesOutput = [{ text: subtitle.text, images }]);
    				} else {
    					$$invalidate(1, subtitlesOutput = [...subtitlesOutput, { text: subtitle.text, images }]);
    				}

    				$$invalidate(2, progress = localTime / totalDuration * 100);
    				await tick();
    				console.log('Subtitle added to output:', subtitlesOutput);
    				await new Promise(resolve => setTimeout(resolve, subtitle.duration * 1000));
    				console.log('Waited for subtitle duration');
    				($$invalidate(4, uistatusupdate = 'Waited for subtitle duration'));
    				$$invalidate(5, uiTimeStatus = localTime);
    				localTime += subtitle.duration;
    				i++;
    			}

    			console.log('Finished displaying subtitles');
    		};

    		await displayNextSubtitle();
    		console.log('Finished handleFileUpload');
    	}

    	function pause() {
    		paused.update(value => !value);
    	}

    	function reset() {
    		restart.set(true);
    	}

    	function toggleSubtitleMode() {
    		onlyCurrentSubtitle.update(value => !value);
    	}

    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console_1.warn(`<PictureSubtitlesbasedonYTTranscript> was created with unknown prop '${key}'`);
    	});

    	function input0_change_handler() {
    		$ytsubuseplayer = this.checked;
    		ytsubuseplayer.set($ytsubuseplayer);
    	}

    	const change_handler = e => $$invalidate(0, zipFile = e.target.files[0]);

    	function input2_change_handler() {
    		$onlyCurrentSubtitle = this.checked;
    		onlyCurrentSubtitle.set($onlyCurrentSubtitle);
    	}

    	$$self.$capture_state = () => ({
    		onMount,
    		tick,
    		writable,
    		JSZip,
    		ytsubcurrenttext,
    		ytsubcurrentID,
    		ytsubuseplayer,
    		ytsubuse,
    		zipFile,
    		subtitlesOutput,
    		currentTime,
    		paused,
    		restart,
    		onlyCurrentSubtitle,
    		progress,
    		totalDuration,
    		uistatusupdate,
    		uiTimeStatus,
    		subtitleVideoDetailsFileData,
    		subtitleVideoTitle,
    		handleFileUpload,
    		pause,
    		reset,
    		toggleSubtitleMode,
    		$onlyCurrentSubtitle,
    		$restart,
    		$paused,
    		$ytsubcurrenttext,
    		$ytsubcurrentID,
    		$ytsubuseplayer
    	});

    	$$self.$inject_state = $$props => {
    		if ('zipFile' in $$props) $$invalidate(0, zipFile = $$props.zipFile);
    		if ('subtitlesOutput' in $$props) $$invalidate(1, subtitlesOutput = $$props.subtitlesOutput);
    		if ('currentTime' in $$props) currentTime = $$props.currentTime;
    		if ('paused' in $$props) $$invalidate(10, paused = $$props.paused);
    		if ('restart' in $$props) $$invalidate(11, restart = $$props.restart);
    		if ('onlyCurrentSubtitle' in $$props) $$invalidate(12, onlyCurrentSubtitle = $$props.onlyCurrentSubtitle);
    		if ('progress' in $$props) $$invalidate(2, progress = $$props.progress);
    		if ('totalDuration' in $$props) $$invalidate(3, totalDuration = $$props.totalDuration);
    		if ('uistatusupdate' in $$props) $$invalidate(4, uistatusupdate = $$props.uistatusupdate);
    		if ('uiTimeStatus' in $$props) $$invalidate(5, uiTimeStatus = $$props.uiTimeStatus);
    		if ('subtitleVideoDetailsFileData' in $$props) subtitleVideoDetailsFileData = $$props.subtitleVideoDetailsFileData;
    		if ('subtitleVideoTitle' in $$props) $$invalidate(6, subtitleVideoTitle = $$props.subtitleVideoTitle);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [
    		zipFile,
    		subtitlesOutput,
    		progress,
    		totalDuration,
    		uistatusupdate,
    		uiTimeStatus,
    		subtitleVideoTitle,
    		$onlyCurrentSubtitle,
    		$paused,
    		$ytsubuseplayer,
    		paused,
    		restart,
    		onlyCurrentSubtitle,
    		handleFileUpload,
    		pause,
    		reset,
    		input0_change_handler,
    		change_handler,
    		input2_change_handler
    	];
    }

    class PictureSubtitlesbasedonYTTranscript extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$4, create_fragment$4, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "PictureSubtitlesbasedonYTTranscript",
    			options,
    			id: create_fragment$4.name
    		});
    	}
    }

    /* src\PSWSasspellingpractice.svelte generated by Svelte v3.59.2 */

    const file$3 = "src\\PSWSasspellingpractice.svelte";

    function get_each_context$1(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[3] = list[i];
    	child_ctx[5] = i;
    	return child_ctx;
    }

    function get_each_context_1(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[6] = list[i];
    	return child_ctx;
    }

    function get_each_context_2(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[9] = list[i];
    	return child_ctx;
    }

    // (25:8) {#if sentence}
    function create_if_block(ctx) {
    	let h4;
    	let t1;
    	let div;
    	let table;
    	let each_value_1 = extractLetters(/*sentence*/ ctx[3]);
    	validate_each_argument(each_value_1);
    	let each_blocks = [];

    	for (let i = 0; i < each_value_1.length; i += 1) {
    		each_blocks[i] = create_each_block_1(get_each_context_1(ctx, each_value_1, i));
    	}

    	const block = {
    		c: function create() {
    			h4 = element("h4");
    			h4.textContent = "Extracted Letters:";
    			t1 = space();
    			div = element("div");
    			table = element("table");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(h4, file$3, 25, 10, 918);
    			add_location(table, file$3, 27, 12, 1058);
    			set_style(div, "max-height", "275px");
    			set_style(div, "max-width", "97%");
    			set_style(div, "overflow", "auto");
    			set_style(div, "display", "inline-block");
    			add_location(div, file$3, 26, 10, 957);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h4, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, div, anchor);
    			append_dev(div, table);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(table, null);
    				}
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*extractLetters, sentences*/ 2) {
    				each_value_1 = extractLetters(/*sentence*/ ctx[3]);
    				validate_each_argument(each_value_1);
    				let i;

    				for (i = 0; i < each_value_1.length; i += 1) {
    					const child_ctx = get_each_context_1(ctx, each_value_1, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block_1(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(table, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value_1.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h4);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(div);
    			destroy_each(each_blocks, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_if_block.name,
    		type: "if",
    		source: "(25:8) {#if sentence}",
    		ctx
    	});

    	return block;
    }

    // (31:18) {#each row as cell}
    function create_each_block_2(ctx) {
    	let td;
    	let t_value = /*cell*/ ctx[9] + "";
    	let t;

    	const block = {
    		c: function create() {
    			td = element("td");
    			t = text(t_value);
    			add_location(td, file$3, 31, 20, 1203);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, td, anchor);
    			append_dev(td, t);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*sentences*/ 2 && t_value !== (t_value = /*cell*/ ctx[9] + "")) set_data_dev(t, t_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(td);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_2.name,
    		type: "each",
    		source: "(31:18) {#each row as cell}",
    		ctx
    	});

    	return block;
    }

    // (29:14) {#each extractLetters(sentence) as row}
    function create_each_block_1(ctx) {
    	let tr;
    	let each_value_2 = /*row*/ ctx[6];
    	validate_each_argument(each_value_2);
    	let each_blocks = [];

    	for (let i = 0; i < each_value_2.length; i += 1) {
    		each_blocks[i] = create_each_block_2(get_each_context_2(ctx, each_value_2, i));
    	}

    	const block = {
    		c: function create() {
    			tr = element("tr");

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			add_location(tr, file$3, 29, 16, 1138);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, tr, anchor);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(tr, null);
    				}
    			}
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*extractLetters, sentences*/ 2) {
    				each_value_2 = /*row*/ ctx[6];
    				validate_each_argument(each_value_2);
    				let i;

    				for (i = 0; i < each_value_2.length; i += 1) {
    					const child_ctx = get_each_context_2(ctx, each_value_2, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block_2(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(tr, null);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value_2.length;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(tr);
    			destroy_each(each_blocks, detaching);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block_1.name,
    		type: "each",
    		source: "(29:14) {#each extractLetters(sentence) as row}",
    		ctx
    	});

    	return block;
    }

    // (21:4) {#each sentences as sentence, index}
    function create_each_block$1(ctx) {
    	let div;
    	let h3;
    	let t0;
    	let t1_value = /*index*/ ctx[5] + 1 + "";
    	let t1;
    	let t2;
    	let t3;
    	let p;
    	let t4_value = /*sentence*/ ctx[3] + "";
    	let t4;
    	let t5;
    	let if_block = /*sentence*/ ctx[3] && create_if_block(ctx);

    	const block = {
    		c: function create() {
    			div = element("div");
    			h3 = element("h3");
    			t0 = text("Sentence ");
    			t1 = text(t1_value);
    			t2 = text(":");
    			t3 = space();
    			p = element("p");
    			t4 = text(t4_value);
    			t5 = space();
    			if (if_block) if_block.c();
    			add_location(h3, file$3, 22, 8, 825);
    			add_location(p, file$3, 23, 8, 865);
    			add_location(div, file$3, 21, 6, 810);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, h3);
    			append_dev(h3, t0);
    			append_dev(h3, t1);
    			append_dev(h3, t2);
    			append_dev(div, t3);
    			append_dev(div, p);
    			append_dev(p, t4);
    			append_dev(div, t5);
    			if (if_block) if_block.m(div, null);
    		},
    		p: function update(ctx, dirty) {
    			if (dirty & /*sentences*/ 2 && t4_value !== (t4_value = /*sentence*/ ctx[3] + "")) set_data_dev(t4, t4_value);

    			if (/*sentence*/ ctx[3]) {
    				if (if_block) {
    					if_block.p(ctx, dirty);
    				} else {
    					if_block = create_if_block(ctx);
    					if_block.c();
    					if_block.m(div, null);
    				}
    			} else if (if_block) {
    				if_block.d(1);
    				if_block = null;
    			}
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			if (if_block) if_block.d();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block$1.name,
    		type: "each",
    		source: "(21:4) {#each sentences as sentence, index}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$3(ctx) {
    	let div;
    	let h2;
    	let t1;
    	let textarea;
    	let t2;
    	let t3;
    	let p;
    	let mounted;
    	let dispose;
    	let each_value = /*sentences*/ ctx[1];
    	validate_each_argument(each_value);
    	let each_blocks = [];

    	for (let i = 0; i < each_value.length; i += 1) {
    		each_blocks[i] = create_each_block$1(get_each_context$1(ctx, each_value, i));
    	}

    	const block = {
    		c: function create() {
    			div = element("div");
    			h2 = element("h2");
    			h2.textContent = "Sentence Letter Extractor";
    			t1 = space();
    			textarea = element("textarea");
    			t2 = space();

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			t3 = space();
    			p = element("p");
    			p.textContent = "Example rough prompt to claude/gpt 4 to generate image prompt - The output of a random sentence brought R b N C I f L r t n f b r, please try and make a sentence where each letter is used to make a sentence with as many nouns adjectives in it while using as few words as possible";
    			add_location(h2, file$3, 18, 4, 541);
    			set_style(textarea, "width", "95%");
    			set_style(textarea, "height", "100px");
    			attr_dev(textarea, "placeholder", "Enter sentences separated by full stops, question marks, exclamation marks, or colons");
    			add_location(textarea, file$3, 19, 4, 581);
    			add_location(p, file$3, 40, 4, 1379);
    			add_location(div, file$3, 17, 2, 530);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    			append_dev(div, h2);
    			append_dev(div, t1);
    			append_dev(div, textarea);
    			set_input_value(textarea, /*inputText*/ ctx[0]);
    			append_dev(div, t2);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(div, null);
    				}
    			}

    			append_dev(div, t3);
    			append_dev(div, p);

    			if (!mounted) {
    				dispose = listen_dev(textarea, "input", /*textarea_input_handler*/ ctx[2]);
    				mounted = true;
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*inputText*/ 1) {
    				set_input_value(textarea, /*inputText*/ ctx[0]);
    			}

    			if (dirty & /*extractLetters, sentences*/ 2) {
    				each_value = /*sentences*/ ctx[1];
    				validate_each_argument(each_value);
    				let i;

    				for (i = 0; i < each_value.length; i += 1) {
    					const child_ctx = get_each_context$1(ctx, each_value, i);

    					if (each_blocks[i]) {
    						each_blocks[i].p(child_ctx, dirty);
    					} else {
    						each_blocks[i] = create_each_block$1(child_ctx);
    						each_blocks[i].c();
    						each_blocks[i].m(div, t3);
    					}
    				}

    				for (; i < each_blocks.length; i += 1) {
    					each_blocks[i].d(1);
    				}

    				each_blocks.length = each_value.length;
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    			destroy_each(each_blocks, detaching);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$3.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function extractLetters(sentence) {
    	const words = sentence.split(' ');
    	const maxLength = Math.max(...words.map(word => word.length));
    	const result = [];

    	for (let i = 0; i < maxLength; i++) {
    		const letters = words.map(word => word[i] || '');
    		result.push(letters);
    	}

    	return result;
    }

    function instance$3($$self, $$props, $$invalidate) {
    	let sentences;
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('PSWSasspellingpractice', slots, []);
    	let inputText = '';
    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<PSWSasspellingpractice> was created with unknown prop '${key}'`);
    	});

    	function textarea_input_handler() {
    		inputText = this.value;
    		$$invalidate(0, inputText);
    	}

    	$$self.$capture_state = () => ({ inputText, extractLetters, sentences });

    	$$self.$inject_state = $$props => {
    		if ('inputText' in $$props) $$invalidate(0, inputText = $$props.inputText);
    		if ('sentences' in $$props) $$invalidate(1, sentences = $$props.sentences);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	$$self.$$.update = () => {
    		if ($$self.$$.dirty & /*inputText*/ 1) {
    			$$invalidate(1, sentences = inputText.split(/[.?!:]/).map(sentence => sentence.trim()).filter(sentence => sentence !== ''));
    		}
    	};

    	return [inputText, sentences, textarea_input_handler];
    }

    class PSWSasspellingpractice extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$3, create_fragment$3, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "PSWSasspellingpractice",
    			options,
    			id: create_fragment$3.name
    		});
    	}
    }

    /* src\ListeningPracticeandSyllableStudy.svelte generated by Svelte v3.59.2 */

    const file$2 = "src\\ListeningPracticeandSyllableStudy.svelte";

    function get_each_context(ctx, list, i) {
    	const child_ctx = ctx.slice();
    	child_ctx[6] = list[i];
    	child_ctx[8] = i;
    	return child_ctx;
    }

    // (25:4) {#each syllableLists as syllables, index (index)}
    function create_each_block(key_1, ctx) {
    	let button;
    	let t0_value = /*displayTexts*/ ctx[1][/*index*/ ctx[8]] + "";
    	let t0;
    	let t1;
    	let mounted;
    	let dispose;

    	function click_handler() {
    		return /*click_handler*/ ctx[3](/*index*/ ctx[8]);
    	}

    	const block = {
    		key: key_1,
    		first: null,
    		c: function create() {
    			button = element("button");
    			t0 = text(t0_value);
    			t1 = space();
    			set_style(button, "cursor", "pointer");
    			add_location(button, file$2, 25, 8, 874);
    			this.first = button;
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, button, anchor);
    			append_dev(button, t0);
    			append_dev(button, t1);

    			if (!mounted) {
    				dispose = listen_dev(button, "click", click_handler, false, false, false, false);
    				mounted = true;
    			}
    		},
    		p: function update(new_ctx, dirty) {
    			ctx = new_ctx;
    			if (dirty & /*displayTexts, syllableLists*/ 3 && t0_value !== (t0_value = /*displayTexts*/ ctx[1][/*index*/ ctx[8]] + "")) set_data_dev(t0, t0_value);
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(button);
    			mounted = false;
    			dispose();
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_each_block.name,
    		type: "each",
    		source: "(25:4) {#each syllableLists as syllables, index (index)}",
    		ctx
    	});

    	return block;
    }

    function create_fragment$2(ctx) {
    	let main;
    	let div;
    	let t1;
    	let each_blocks = [];
    	let each_1_lookup = new Map();
    	let each_value = /*syllableLists*/ ctx[0];
    	validate_each_argument(each_value);
    	const get_key = ctx => /*index*/ ctx[8];
    	validate_each_keys(ctx, each_value, get_each_context, get_key);

    	for (let i = 0; i < each_value.length; i += 1) {
    		let child_ctx = get_each_context(ctx, each_value, i);
    		let key = get_key(child_ctx);
    		each_1_lookup.set(key, each_blocks[i] = create_each_block(key, child_ctx));
    	}

    	const block = {
    		c: function create() {
    			main = element("main");
    			div = element("div");
    			div.textContent = "On click will Show Next Syllable";
    			t1 = space();

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].c();
    			}

    			attr_dev(div, "class", "svelte-18he4oy");
    			add_location(div, file$2, 23, 4, 766);
    			add_location(main, file$2, 22, 0, 754);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, main, anchor);
    			append_dev(main, div);
    			append_dev(main, t1);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				if (each_blocks[i]) {
    					each_blocks[i].m(main, null);
    				}
    			}
    		},
    		p: function update(ctx, [dirty]) {
    			if (dirty & /*nextSyllable, syllableLists, displayTexts*/ 7) {
    				each_value = /*syllableLists*/ ctx[0];
    				validate_each_argument(each_value);
    				validate_each_keys(ctx, each_value, get_each_context, get_key);
    				each_blocks = update_keyed_each(each_blocks, dirty, get_key, 1, ctx, each_value, each_1_lookup, main, destroy_block, create_each_block, null, get_each_context);
    			}
    		},
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(main);

    			for (let i = 0; i < each_blocks.length; i += 1) {
    				each_blocks[i].d();
    			}
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$2.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$2($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('ListeningPracticeandSyllableStudy', slots, []);
    	let { syllableLists = [] } = $$props;
    	let currentSyllableIndices = Array(syllableLists.length).fill(0);
    	let displayTexts = syllableLists.map((list, index) => list[0]);

    	function nextSyllable(wordIndex) {
    		if (currentSyllableIndices[wordIndex] < syllableLists[wordIndex].length - 1) {
    			currentSyllableIndices[wordIndex]++;
    		} else {
    			currentSyllableIndices[wordIndex] = 0;
    		}

    		updateDisplayText(wordIndex);
    	}

    	function updateDisplayText(wordIndex) {
    		$$invalidate(1, displayTexts[wordIndex] = syllableLists[wordIndex].slice(0, currentSyllableIndices[wordIndex] + 1).join(''), displayTexts);
    	}

    	const writable_props = ['syllableLists'];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<ListeningPracticeandSyllableStudy> was created with unknown prop '${key}'`);
    	});

    	const click_handler = index => nextSyllable(index);

    	$$self.$$set = $$props => {
    		if ('syllableLists' in $$props) $$invalidate(0, syllableLists = $$props.syllableLists);
    	};

    	$$self.$capture_state = () => ({
    		syllableLists,
    		currentSyllableIndices,
    		displayTexts,
    		nextSyllable,
    		updateDisplayText
    	});

    	$$self.$inject_state = $$props => {
    		if ('syllableLists' in $$props) $$invalidate(0, syllableLists = $$props.syllableLists);
    		if ('currentSyllableIndices' in $$props) currentSyllableIndices = $$props.currentSyllableIndices;
    		if ('displayTexts' in $$props) $$invalidate(1, displayTexts = $$props.displayTexts);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [syllableLists, displayTexts, nextSyllable, click_handler];
    }

    class ListeningPracticeandSyllableStudy extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$2, create_fragment$2, safe_not_equal, { syllableLists: 0 });

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "ListeningPracticeandSyllableStudy",
    			options,
    			id: create_fragment$2.name
    		});
    	}

    	get syllableLists() {
    		throw new Error("<ListeningPracticeandSyllableStudy>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set syllableLists(value) {
    		throw new Error("<ListeningPracticeandSyllableStudy>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    /* src\Testspace.svelte generated by Svelte v3.59.2 */

    const file$1 = "src\\Testspace.svelte";

    function create_fragment$1(ctx) {
    	let div;

    	const block = {
    		c: function create() {
    			div = element("div");
    			add_location(div, file$1, 0, 0, 0);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, div, anchor);
    		},
    		p: noop,
    		i: noop,
    		o: noop,
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(div);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment$1.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance$1($$self, $$props) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('Testspace', slots, []);
    	const writable_props = [];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<Testspace> was created with unknown prop '${key}'`);
    	});

    	return [];
    }

    class Testspace extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance$1, create_fragment$1, safe_not_equal, {});

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "Testspace",
    			options,
    			id: create_fragment$1.name
    		});
    	}
    }

    /* src\App.svelte generated by Svelte v3.59.2 */
    const file = "src\\App.svelte";

    // (46:1) <SimpleCollapsible title='Random Text Idea Tests'>
    function create_default_slot(ctx) {
    	let h3;
    	let t1;
    	let div6;
    	let div0;
    	let copyremove;
    	let t2;
    	let div1;
    	let llmwf;
    	let t3;
    	let div2;
    	let subrepprac;
    	let t4;
    	let div3;
    	let readingstatecounter;
    	let t5;
    	let div4;
    	let t6;
    	let br;
    	let t7;
    	let orderaspractice;
    	let t8;
    	let div5;
    	let firstsyllable;
    	let current;
    	copyremove = new CopyandRemoveListComponent({ $$inline: true });
    	llmwf = new LLMWorkflowTest({ $$inline: true });
    	subrepprac = new DeliberateSubconciousRepititionPractice({ $$inline: true });
    	readingstatecounter = new ReadingStateCounter({ $$inline: true });
    	orderaspractice = new PSWSasspellingpractice({ $$inline: true });

    	firstsyllable = new ListeningPracticeandSyllableStudy({
    			props: { syllableLists: /*wordList*/ ctx[1] },
    			$$inline: true
    		});

    	const block = {
    		c: function create() {
    			h3 = element("h3");
    			h3.textContent = "(Through Gradio and Custom Components)";
    			t1 = space();
    			div6 = element("div");
    			div0 = element("div");
    			create_component(copyremove.$$.fragment);
    			t2 = space();
    			div1 = element("div");
    			create_component(llmwf.$$.fragment);
    			t3 = space();
    			div2 = element("div");
    			create_component(subrepprac.$$.fragment);
    			t4 = space();
    			div3 = element("div");
    			create_component(readingstatecounter.$$.fragment);
    			t5 = space();
    			div4 = element("div");
    			t6 = text("Works well with this prompt + gemini: (Please seperate the words into a list and have the roman and english in brackets next to each word:) ");
    			br = element("br");
    			t7 = text(" Current Practice flow plan User steps:  1) get lyrics (youtube/genius/whisper/other) 2) send to gemini with prompt 3)Enter into new component which starts with scramble spelling with dropdowns then scramble spelling using typing  then moves to  \n\t\t\t\t");
    			create_component(orderaspractice.$$.fragment);
    			t8 = space();
    			div5 = element("div");
    			create_component(firstsyllable.$$.fragment);
    			add_location(h3, file, 46, 2, 1835);
    			attr_dev(div0, "class", "componentborder svelte-192gzri");
    			add_location(div0, file, 49, 3, 1934);
    			attr_dev(div1, "class", "componentborder svelte-192gzri");
    			add_location(div1, file, 50, 3, 1987);
    			attr_dev(div2, "class", "componentborder svelte-192gzri");
    			add_location(div2, file, 51, 3, 2035);
    			attr_dev(div3, "class", "componentborder svelte-192gzri");
    			add_location(div3, file, 52, 3, 2088);
    			add_location(br, file, 54, 144, 2324);
    			attr_dev(div4, "class", "componentborder svelte-192gzri");
    			add_location(div4, file, 53, 3, 2150);
    			attr_dev(div5, "class", "componentborder svelte-192gzri");
    			add_location(div5, file, 57, 3, 2611);
    			attr_dev(div6, "class", "grid-MultiComponentContainer svelte-192gzri");
    			add_location(div6, file, 48, 2, 1888);
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, h3, anchor);
    			insert_dev(target, t1, anchor);
    			insert_dev(target, div6, anchor);
    			append_dev(div6, div0);
    			mount_component(copyremove, div0, null);
    			append_dev(div6, t2);
    			append_dev(div6, div1);
    			mount_component(llmwf, div1, null);
    			append_dev(div6, t3);
    			append_dev(div6, div2);
    			mount_component(subrepprac, div2, null);
    			append_dev(div6, t4);
    			append_dev(div6, div3);
    			mount_component(readingstatecounter, div3, null);
    			append_dev(div6, t5);
    			append_dev(div6, div4);
    			append_dev(div4, t6);
    			append_dev(div4, br);
    			append_dev(div4, t7);
    			mount_component(orderaspractice, div4, null);
    			append_dev(div6, t8);
    			append_dev(div6, div5);
    			mount_component(firstsyllable, div5, null);
    			current = true;
    		},
    		p: noop,
    		i: function intro(local) {
    			if (current) return;
    			transition_in(copyremove.$$.fragment, local);
    			transition_in(llmwf.$$.fragment, local);
    			transition_in(subrepprac.$$.fragment, local);
    			transition_in(readingstatecounter.$$.fragment, local);
    			transition_in(orderaspractice.$$.fragment, local);
    			transition_in(firstsyllable.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(copyremove.$$.fragment, local);
    			transition_out(llmwf.$$.fragment, local);
    			transition_out(subrepprac.$$.fragment, local);
    			transition_out(readingstatecounter.$$.fragment, local);
    			transition_out(orderaspractice.$$.fragment, local);
    			transition_out(firstsyllable.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(h3);
    			if (detaching) detach_dev(t1);
    			if (detaching) detach_dev(div6);
    			destroy_component(copyremove);
    			destroy_component(llmwf);
    			destroy_component(subrepprac);
    			destroy_component(readingstatecounter);
    			destroy_component(orderaspractice);
    			destroy_component(firstsyllable);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_default_slot.name,
    		type: "slot",
    		source: "(46:1) <SimpleCollapsible title='Random Text Idea Tests'>",
    		ctx
    	});

    	return block;
    }

    function create_fragment(ctx) {
    	let main;
    	let testspace;
    	let t0;
    	let h10;
    	let t1;
    	let t2;
    	let t3;
    	let t4;
    	let h20;
    	let t6;
    	let p;
    	let t7;
    	let a;
    	let t9;
    	let t10;
    	let h11;
    	let t12;
    	let simplecollapsible;
    	let t13;
    	let nestedcommentssvelte;
    	let t14;
    	let myyoutube;
    	let t15;
    	let ytpicsubs;
    	let t16;
    	let h12;
    	let t18;
    	let h21;
    	let t20;
    	let dotgame;
    	let current;
    	testspace = new Testspace({ $$inline: true });

    	simplecollapsible = new SimpleCollapsible({
    			props: {
    				title: "Random Text Idea Tests",
    				$$slots: { default: [create_default_slot] },
    				$$scope: { ctx }
    			},
    			$$inline: true
    		});

    	nestedcommentssvelte = new RecursiveNestedCommentsElement({ $$inline: true });
    	myyoutube = new YoutubeIframeAPICustomInterface({ $$inline: true });
    	ytpicsubs = new PictureSubtitlesbasedonYTTranscript({ $$inline: true });
    	dotgame = new MovingDotSpacePortfromReact({ $$inline: true });

    	const block = {
    		c: function create() {
    			main = element("main");
    			create_component(testspace.$$.fragment);
    			t0 = space();
    			h10 = element("h1");
    			t1 = text("LLM Assisted Hello ");
    			t2 = text(/*name*/ ctx[0]);
    			t3 = text("!");
    			t4 = space();
    			h20 = element("h2");
    			h20.textContent = "(I forgot to log how many prompts to make the whole page. As most of code is from llms, a planning LLM could have made this in 1 day. Prompts to app should be a benchmark)";
    			t6 = space();
    			p = element("p");
    			t7 = text("Visit the ");
    			a = element("a");
    			a.textContent = "Svelte tutorial";
    			t9 = text(" to learn how to build Svelte apps. (or ask Claude / GPT4 for help)");
    			t10 = space();
    			h11 = element("h1");
    			h11.textContent = "Brainstorm for Educational Interfaces to add LLM and other models into";
    			t12 = space();
    			create_component(simplecollapsible.$$.fragment);
    			t13 = space();
    			create_component(nestedcommentssvelte.$$.fragment);
    			t14 = space();
    			create_component(myyoutube.$$.fragment);
    			t15 = space();
    			create_component(ytpicsubs.$$.fragment);
    			t16 = space();
    			h12 = element("h1");
    			h12.textContent = "Themeable Game Brainstorm - Image + Lists - Game as Universal Translator for any subject";
    			t18 = space();
    			h21 = element("h2");
    			h21.textContent = "Also bridge to testing on low pc before auto refactor pipeline to unreal engine = truly multiplatform game";
    			t20 = space();
    			create_component(dotgame.$$.fragment);
    			attr_dev(h10, "class", "svelte-192gzri");
    			add_location(h10, file, 38, 1, 1213);
    			add_location(h20, file, 39, 1, 1250);
    			attr_dev(a, "href", "https://svelte.dev/tutorial");
    			add_location(a, file, 40, 14, 1445);
    			add_location(p, file, 40, 1, 1432);
    			attr_dev(h11, "class", "svelte-192gzri");
    			add_location(h11, file, 44, 1, 1699);
    			attr_dev(h12, "class", "svelte-192gzri");
    			add_location(h12, file, 67, 1, 2829);
    			add_location(h21, file, 68, 1, 2930);
    			attr_dev(main, "class", "svelte-192gzri");
    			add_location(main, file, 36, 0, 1190);
    		},
    		l: function claim(nodes) {
    			throw new Error("options.hydrate only works if the component was compiled with the `hydratable: true` option");
    		},
    		m: function mount(target, anchor) {
    			insert_dev(target, main, anchor);
    			mount_component(testspace, main, null);
    			append_dev(main, t0);
    			append_dev(main, h10);
    			append_dev(h10, t1);
    			append_dev(h10, t2);
    			append_dev(h10, t3);
    			append_dev(main, t4);
    			append_dev(main, h20);
    			append_dev(main, t6);
    			append_dev(main, p);
    			append_dev(p, t7);
    			append_dev(p, a);
    			append_dev(p, t9);
    			append_dev(main, t10);
    			append_dev(main, h11);
    			append_dev(main, t12);
    			mount_component(simplecollapsible, main, null);
    			append_dev(main, t13);
    			mount_component(nestedcommentssvelte, main, null);
    			append_dev(main, t14);
    			mount_component(myyoutube, main, null);
    			append_dev(main, t15);
    			mount_component(ytpicsubs, main, null);
    			append_dev(main, t16);
    			append_dev(main, h12);
    			append_dev(main, t18);
    			append_dev(main, h21);
    			append_dev(main, t20);
    			mount_component(dotgame, main, null);
    			current = true;
    		},
    		p: function update(ctx, [dirty]) {
    			if (!current || dirty & /*name*/ 1) set_data_dev(t2, /*name*/ ctx[0]);
    			const simplecollapsible_changes = {};

    			if (dirty & /*$$scope*/ 64) {
    				simplecollapsible_changes.$$scope = { dirty, ctx };
    			}

    			simplecollapsible.$set(simplecollapsible_changes);
    		},
    		i: function intro(local) {
    			if (current) return;
    			transition_in(testspace.$$.fragment, local);
    			transition_in(simplecollapsible.$$.fragment, local);
    			transition_in(nestedcommentssvelte.$$.fragment, local);
    			transition_in(myyoutube.$$.fragment, local);
    			transition_in(ytpicsubs.$$.fragment, local);
    			transition_in(dotgame.$$.fragment, local);
    			current = true;
    		},
    		o: function outro(local) {
    			transition_out(testspace.$$.fragment, local);
    			transition_out(simplecollapsible.$$.fragment, local);
    			transition_out(nestedcommentssvelte.$$.fragment, local);
    			transition_out(myyoutube.$$.fragment, local);
    			transition_out(ytpicsubs.$$.fragment, local);
    			transition_out(dotgame.$$.fragment, local);
    			current = false;
    		},
    		d: function destroy(detaching) {
    			if (detaching) detach_dev(main);
    			destroy_component(testspace);
    			destroy_component(simplecollapsible);
    			destroy_component(nestedcommentssvelte);
    			destroy_component(myyoutube);
    			destroy_component(ytpicsubs);
    			destroy_component(dotgame);
    		}
    	};

    	dispatch_dev("SvelteRegisterBlock", {
    		block,
    		id: create_fragment.name,
    		type: "component",
    		source: "",
    		ctx
    	});

    	return block;
    }

    function instance($$self, $$props, $$invalidate) {
    	let { $$slots: slots = {}, $$scope } = $$props;
    	validate_slots('App', slots, []);
    	let { name } = $$props;
    	let showModal = false;

    	function openModal() {
    		showModal = true;
    	}

    	function closeModal() {
    		showModal = false;
    	}

    	let word = 'extraordinary';

    	let wordList = [
    		['ex', 'tra', 'or', 'di', 'nar', 'y'],
    		['sub', 'stan', 'tial'],
    		['pro', 'gres', 'sion']
    	];

    	$$self.$$.on_mount.push(function () {
    		if (name === undefined && !('name' in $$props || $$self.$$.bound[$$self.$$.props['name']])) {
    			console.warn("<App> was created without expected prop 'name'");
    		}
    	});

    	const writable_props = ['name'];

    	Object.keys($$props).forEach(key => {
    		if (!~writable_props.indexOf(key) && key.slice(0, 2) !== '$$' && key !== 'slot') console.warn(`<App> was created with unknown prop '${key}'`);
    	});

    	$$self.$$set = $$props => {
    		if ('name' in $$props) $$invalidate(0, name = $$props.name);
    	};

    	$$self.$capture_state = () => ({
    		name,
    		VideoGradioComponentBrainstorming,
    		DotGame: MovingDotSpacePortfromReact,
    		MyYoutube: YoutubeIframeAPICustomInterface,
    		NestedCommentsSvelte: RecursiveNestedCommentsElement,
    		CopyRemove: CopyandRemoveListComponent,
    		ReadingStateCounter,
    		SubRepPrac: DeliberateSubconciousRepititionPractice,
    		LLMWF: LLMWorkflowTest,
    		YTPicSubs: PictureSubtitlesbasedonYTTranscript,
    		OrderasPractice: PSWSasspellingpractice,
    		FirstSyllable: ListeningPracticeandSyllableStudy,
    		Testspace,
    		SimpleCollapsible,
    		showModal,
    		openModal,
    		closeModal,
    		word,
    		wordList
    	});

    	$$self.$inject_state = $$props => {
    		if ('name' in $$props) $$invalidate(0, name = $$props.name);
    		if ('showModal' in $$props) showModal = $$props.showModal;
    		if ('word' in $$props) word = $$props.word;
    		if ('wordList' in $$props) $$invalidate(1, wordList = $$props.wordList);
    	};

    	if ($$props && "$$inject" in $$props) {
    		$$self.$inject_state($$props.$$inject);
    	}

    	return [name, wordList];
    }

    class App extends SvelteComponentDev {
    	constructor(options) {
    		super(options);
    		init(this, options, instance, create_fragment, safe_not_equal, { name: 0 });

    		dispatch_dev("SvelteRegisterComponent", {
    			component: this,
    			tagName: "App",
    			options,
    			id: create_fragment.name
    		});
    	}

    	get name() {
    		throw new Error("<App>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}

    	set name(value) {
    		throw new Error("<App>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
    	}
    }

    const app = new App({
    	target: document.body,
    	props: {
    		name: 'world'
    	}
    });

    return app;

})();
//# sourceMappingURL=bundle.js.map