{"version":3,"file":"Renderer.mjs","sources":["../src/Renderer.ts"],"sourcesContent":["import { RENDERER_TYPE } from 'pixijs/constants';\nimport { extensions, ExtensionType } from 'pixijs/extensions';\nimport { Matrix } from 'pixijs/math';\nimport { settings } from 'pixijs/settings';\nimport { deprecation, isWebGLSupported } from 'pixijs/utils';\nimport { UniformGroup } from './shader/UniformGroup';\nimport { SystemManager } from './system/SystemManager';\n\nimport type { MSAA_QUALITY } from 'pixijs/constants';\nimport type { ExtensionMetadata } from 'pixijs/extensions';\nimport type { Rectangle } from 'pixijs/math';\nimport type { ICanvas } from 'pixijs/settings';\nimport type { BackgroundSystem } from './background/BackgroundSystem';\nimport type { BatchSystem } from './batch/BatchSystem';\nimport type { ContextSystem } from './context/ContextSystem';\nimport type { FilterSystem } from './filters/FilterSystem';\nimport type { FramebufferSystem } from './framebuffer/FramebufferSystem';\nimport type { MultisampleSystem } from './framebuffer/MultisampleSystem';\nimport type { BufferSystem } from './geometry/BufferSystem';\nimport type { GeometrySystem } from './geometry/GeometrySystem';\nimport type { IRenderableObject, IRenderer, IRendererOptions, IRendererRenderOptions, IRenderingContext } from './IRenderer';\nimport type { MaskSystem } from './mask/MaskSystem';\nimport type { ScissorSystem } from './mask/ScissorSystem';\nimport type { StencilSystem } from './mask/StencilSystem';\nimport type { IRendererPlugins, PluginSystem } from './plugin/PluginSystem';\nimport type { ProjectionSystem } from './projection/ProjectionSystem';\nimport type { ObjectRendererSystem } from './render/ObjectRendererSystem';\nimport type { GenerateTextureSystem, IGenerateTextureOptions } from './renderTexture/GenerateTextureSystem';\nimport type { RenderTexture } from './renderTexture/RenderTexture';\nimport type { RenderTextureSystem } from './renderTexture/RenderTextureSystem';\nimport type { ShaderSystem } from './shader/ShaderSystem';\nimport type { StartupOptions, StartupSystem } from './startup/StartupSystem';\nimport type { StateSystem } from './state/StateSystem';\nimport type { TextureGCSystem } from './textures/TextureGCSystem';\nimport type { TextureSystem } from './textures/TextureSystem';\nimport type { TransformFeedbackSystem } from './transformFeedback/TransformFeedbackSystem';\nimport type { ViewSystem } from './view/ViewSystem';\n\n// eslint-disable-next-line @typescript-eslint/no-empty-interface\nexport interface Renderer extends GlobalMixins.Renderer {}\n\n/**\n * The Renderer draws the scene and all its content onto a WebGL enabled canvas.\n *\n * This renderer should be used for browsers that support WebGL.\n *\n * This renderer works by automatically managing WebGLBatches, so no need for Sprite Batches or Sprite Clouds.\n * Don't forget to add the view to your DOM or you will not see anything!\n *\n * Renderer is composed of systems that manage specific tasks. The following systems are added by default\n * whenever you create a renderer:\n *\n * | System                               | Description                                                                   |\n * | ------------------------------------ | ----------------------------------------------------------------------------- |\n *\n * | Generic Systems                      | Systems that manage functionality that all renderer types share               |\n * | ------------------------------------ | ----------------------------------------------------------------------------- |\n * | {@link PIXI.ViewSystem}              | This manages the main view of the renderer usually a Canvas                   |\n * | {@link PIXI.PluginSystem}            | This manages plugins for the renderer                                         |\n * | {@link PIXI.BackgroundSystem}        | This manages the main views background color and alpha                        |\n * | {@link PIXI.StartupSystem}           | Boots up a renderer and initiatives all the systems                           |\n * | {@link PIXI.EventSystem}             | This manages UI events.                                                       |\n *\n * | WebGL Core Systems                   | Provide an optimised, easy to use API to work with WebGL                      |\n * | ------------------------------------ | ----------------------------------------------------------------------------- |\n * | {@link PIXI.ContextSystem}           | This manages the WebGL context and extensions.                                |\n * | {@link PIXI.FramebufferSystem}       | This manages framebuffers, which are used for offscreen rendering.            |\n * | {@link PIXI.GeometrySystem}          | This manages geometries & buffers, which are used to draw object meshes.      |\n * | {@link PIXI.ShaderSystem}            | This manages shaders, programs that run on the GPU to calculate 'em pixels.   |\n * | {@link PIXI.StateSystem}             | This manages the WebGL state variables like blend mode, depth testing, etc.   |\n * | {@link PIXI.TextureSystem}           | This manages textures and their resources on the GPU.                         |\n * | {@link PIXI.TextureGCSystem}         | This will automatically remove textures from the GPU if they are not used.    |\n * | {@link PIXI.MultisampleSystem}       | This manages the multisample const on the WEbGL Renderer                      |\n *\n * | PixiJS High-Level Systems            | Set of specific systems designed to work with PixiJS objects                  |\n * | ------------------------------------ | ----------------------------------------------------------------------------- |\n * | {@link PIXI.RenderSystem}            | This adds the ability to render a PIXI.DisplayObject                          |\n * | {@link PIXI.GenerateTextureSystem}   | This adds the ability to generate textures from any PIXI.DisplayObject        |\n * | {@link PIXI.ProjectionSystem}        | This manages the `projectionMatrix`, used by shaders to get NDC coordinates.  |\n * | {@link PIXI.RenderTextureSystem}     | This manages render-textures, which are an abstraction over framebuffers.     |\n * | {@link PIXI.MaskSystem}              | This manages masking operations.                                              |\n * | {@link PIXI.ScissorSystem}           | This handles scissor masking, and is used internally by {@link MaskSystem}    |\n * | {@link PIXI.StencilSystem}           | This handles stencil masking, and is used internally by {@link MaskSystem}    |\n * | {@link PIXI.FilterSystem}            | This manages the filtering pipeline for post-processing effects.              |\n * | {@link PIXI.BatchSystem}             | This manages object renderers that defer rendering until a flush.             |\n * | {@link PIXI.Prepare}                 | This manages uploading assets to the GPU.                                     |\n * | {@link PIXI.Extract}                 | This extracts image data from display objects.                                |\n *\n * The breadth of the API surface provided by the renderer is contained within these systems.\n * @memberof PIXI\n */\nexport class Renderer extends SystemManager<Renderer> implements IRenderer\n{\n    /** @ignore */\n    static extension: ExtensionMetadata = {\n        type: ExtensionType.Renderer,\n        priority: 1,\n    };\n\n    /**\n     * The type of the renderer. will be PIXI.RENDERER_TYPE.CANVAS\n     * @member {number}\n     * @see PIXI.RENDERER_TYPE\n     */\n    public readonly type = RENDERER_TYPE.WEBGL;\n\n    /**\n     * Options passed to the constructor.\n     * @type {PIXI.IRendererOptions}\n     */\n    public readonly options: IRendererOptions;\n\n    /**\n     * WebGL context, set by {@link PIXI.ContextSystem this.context}.\n     * @readonly\n     * @member {WebGLRenderingContext}\n     */\n    public gl: IRenderingContext;\n\n    /**\n     * Global uniforms\n     * Add any uniforms you want shared across your shaders.\n     * the must be added before the scene is rendered for the first time\n     * as we dynamically buildcode to handle all global var per shader\n     *\n     */\n    public globalUniforms: UniformGroup;\n\n    /** Unique UID assigned to the renderer's WebGL context. */\n    public CONTEXT_UID: number;\n\n    // systems\n\n    /**\n     * Mask system instance\n     * @readonly\n     */\n    public readonly mask: MaskSystem;\n\n    /**\n     * Context system instance\n     * @readonly\n     */\n    public readonly context: ContextSystem;\n\n    /**\n     * State system instance\n     * @readonly\n     */\n    public readonly state: StateSystem;\n\n    /**\n     * Shader system instance\n     * @readonly\n     */\n    public readonly shader: ShaderSystem;\n\n    /**\n     * Texture system instance\n     * @readonly\n     */\n    public readonly texture: TextureSystem;\n\n    /**\n     * Buffer system instance\n     * @readonly\n     */\n    public readonly buffer: BufferSystem;\n\n    /**\n     * TransformFeedback system instance\n     * @readonly\n     */\n    public transformFeedback: TransformFeedbackSystem;\n\n    /**\n     * Geometry system instance\n     * @readonly\n     */\n    public readonly geometry: GeometrySystem;\n\n    /**\n     * Framebuffer system instance\n     * @readonly\n     */\n    public readonly framebuffer: FramebufferSystem;\n\n    /**\n     * Scissor system instance\n     * @readonly\n     */\n    public readonly scissor: ScissorSystem;\n\n    /**\n     * Stencil system instance\n     * @readonly\n     */\n    public readonly stencil: StencilSystem;\n\n    /**\n     * Projection system instance\n     * @readonly\n     */\n    public readonly projection: ProjectionSystem;\n\n    /**\n     * Texture garbage collector system instance\n     * @readonly\n     */\n    public readonly textureGC: TextureGCSystem;\n\n    /**\n     * Filter system instance\n     * @readonly\n     */\n    public readonly filter: FilterSystem;\n\n    /**\n     * RenderTexture system instance\n     * @readonly\n     */\n    public readonly renderTexture: RenderTextureSystem;\n\n    /**\n     * Batch system instance\n     * @readonly\n     */\n    public readonly batch: BatchSystem;\n\n    /**\n     * plugin system instance\n     * @readonly\n     */\n    public readonly _plugin: PluginSystem;\n\n    /**\n     * _multisample system instance\n     * @readonly\n     */\n    public readonly _multisample: MultisampleSystem;\n\n    /**\n     * textureGenerator system instance\n     * @readonly\n     */\n    public readonly textureGenerator: GenerateTextureSystem;\n\n    /**\n     * background system instance\n     * @readonly\n     */\n    public readonly background: BackgroundSystem;\n\n    /**\n     * _view system instance\n     * @readonly\n     */\n    public readonly _view: ViewSystem;\n\n    /**\n     * _render system instance\n     * @readonly\n     */\n    public readonly objectRenderer: ObjectRendererSystem;\n\n    /**\n     * startup system instance\n     * @readonly\n     */\n    public readonly startup: StartupSystem;\n\n    /**\n     * Create renderer if WebGL is available. Overrideable\n     * by the **pixijs/renderer/canvas** package to allow fallback.\n     * throws error if WebGL is not available.\n     * @param options\n     * @private\n     */\n    static test(options?: IRendererOptions): boolean\n    {\n        if (options?.forceCanvas)\n        {\n            return false;\n        }\n\n        return isWebGLSupported();\n    }\n\n    /**\n     * @param {PIXI.IRendererOptions} [options] - The optional renderer parameters.\n     * @param {boolean} [options.antialias=false] -\n     *  **WebGL Only.** Whether to enable anti-aliasing. This may affect performance.\n     * @param {boolean} [options.autoDensity=false] -\n     *  Whether the CSS dimensions of the renderer's view should be resized automatically.\n     * @param {number|string} [options.background] - Alias for `options.backgroundColor`.\n     * @param {number} [options.backgroundAlpha=1] -\n     *  Transparency of the background color, value from `0` (fully transparent) to `1` (fully opaque).\n     * @param {number|string} [options.backgroundColor=0x000000] -\n     *  The background color used to clear the canvas. It accepts hex numbers (e.g. `0xff0000`),\n     *  hex strings (e.g. `'#f00'` or `'#ff0000'`) or color names (e.g. `'red'`).\n     * @param {boolean} [options.clearBeforeRender=true] - Whether to clear the canvas before new render passes.\n     * @param {PIXI.IRenderingContext} [options.context] - **WebGL Only.** User-provided WebGL rendering context object.\n     * @param {number} [options.height=600] - The height of the renderer's view.\n     * @param {boolean} [options.hello=false] - Whether to log the version and type information of renderer to console.\n     * @param {string} [options.powerPreference] -\n     *  **WebGL Only.** A hint indicating what configuration of GPU is suitable for the WebGL context,\n     *  can be `'default'`, `'high-performance'` or `'low-power'`.\n     *  Setting to `'high-performance'` will prioritize rendering performance over power consumption,\n     *  while setting to `'low-power'` will prioritize power saving over rendering performance.\n     * @param {boolean} [options.premultipliedAlpha=true] -\n     *  **WebGL Only.** Whether the compositor will assume the drawing buffer contains colors with premultiplied alpha.\n     * @param {boolean} [options.preserveDrawingBuffer=false] -\n     *  **WebGL Only.** Whether to enable drawing buffer preservation. If enabled, the drawing buffer will preserve\n     *  its value until cleared or overwritten. Enable this if you need to call `toDataUrl` on the WebGL context.\n     * @param {number} [options.resolution=PIXI.settings.RESOLUTION] -\n     *  The resolution / device pixel ratio of the renderer.\n     * @param {boolean|'notMultiplied'} [options.useContextAlpha=true] -\n     *  **Deprecated since 7.0.0, use `premultipliedAlpha` and `backgroundAlpha` instead.** \\\n     *  Pass-through value for canvas' context attribute `alpha`. This option is for cases where the\n     *  canvas needs to be opaque, possibly for performance reasons on some older devices.\n     *  If you want to set transparency, please use `backgroundAlpha`. \\\n     *  **WebGL Only:** When set to `'notMultiplied'`, the canvas' context attribute `alpha` will be\n     *  set to `true` and `premultipliedAlpha` will be to `false`.\n     * @param {PIXI.ICanvas} [options.view=null] -\n     *  The canvas to use as the view. If omitted, a new canvas will be created.\n     * @param {number} [options.width=800] - The width of the renderer's view.\n     */\n    constructor(options?: IRendererOptions)\n    {\n        super();\n\n        // Add the default render options\n        options = Object.assign({}, settings.RENDER_OPTIONS, options);\n\n        this.gl = null;\n\n        this.CONTEXT_UID = 0;\n\n        this.globalUniforms = new UniformGroup({\n            projectionMatrix: new Matrix(),\n        }, true);\n\n        const systemConfig = {\n            runners: [\n                'init',\n                'destroy',\n                'contextChange',\n                'resolutionChange',\n                'reset',\n                'update',\n                'postrender',\n                'prerender',\n                'resize'\n            ],\n            systems: Renderer.__systems,\n            priority: [\n                '_view',\n                'textureGenerator',\n                'background',\n                '_plugin',\n                'startup',\n                // low level WebGL systems\n                'context',\n                'state',\n                'texture',\n                'buffer',\n                'geometry',\n                'framebuffer',\n                'transformFeedback',\n                // high level pixi specific rendering\n                'mask',\n                'scissor',\n                'stencil',\n                'projection',\n                'textureGC',\n                'filter',\n                'renderTexture',\n                'batch',\n                'objectRenderer',\n                '_multisample'\n            ],\n        };\n\n        this.setup(systemConfig);\n\n        if ('useContextAlpha' in options)\n        {\n            // #if _DEBUG\n            // eslint-disable-next-line max-len\n            deprecation('7.0.0', 'options.useContextAlpha is deprecated, use options.premultipliedAlpha and options.backgroundAlpha instead');\n            // #endif\n            options.premultipliedAlpha = options.useContextAlpha && options.useContextAlpha !== 'notMultiplied';\n            options.backgroundAlpha = options.useContextAlpha === false ? 1 : options.backgroundAlpha;\n        }\n\n        // new options!\n        const startupOptions: StartupOptions = {\n            hello: options.hello,\n            _plugin: Renderer.__plugins,\n            background: {\n                alpha: options.backgroundAlpha,\n                color: options.background ?? options.backgroundColor,\n                clearBeforeRender: options.clearBeforeRender,\n            },\n            _view: {\n                height: options.height,\n                width: options.width,\n                autoDensity: options.autoDensity,\n                resolution: options.resolution,\n                view: options.view,\n            },\n            context: {\n                antialias: options.antialias,\n                context: options.context,\n                powerPreference: options.powerPreference,\n                premultipliedAlpha: options.premultipliedAlpha,\n                preserveDrawingBuffer: options.preserveDrawingBuffer,\n            },\n        };\n\n        this.options = options;\n        this.startup.run(startupOptions);\n    }\n\n    /**\n     * Renders the object to its WebGL view.\n     * @param displayObject - The object to be rendered.\n     * @param {object} [options] - Object to use for render options.\n     * @param {PIXI.RenderTexture} [options.renderTexture] - The render texture to render to.\n     * @param {boolean} [options.clear=true] - Should the canvas be cleared before the new render.\n     * @param {PIXI.Matrix} [options.transform] - A transform to apply to the render texture before rendering.\n     * @param {boolean} [options.skipUpdateTransform=false] - Should we skip the update transform pass?\n     */\n    render(displayObject: IRenderableObject, options?: IRendererRenderOptions): void\n    {\n        this.objectRenderer.render(displayObject, options);\n    }\n\n    /**\n     * Resizes the WebGL view to the specified width and height.\n     * @param desiredScreenWidth - The desired width of the screen.\n     * @param desiredScreenHeight - The desired height of the screen.\n     */\n    resize(desiredScreenWidth: number, desiredScreenHeight: number): void\n    {\n        this._view.resizeView(desiredScreenWidth, desiredScreenHeight);\n    }\n\n    /**\n     * Resets the WebGL state so you can render things however you fancy!\n     * @returns Returns itself.\n     */\n    reset(): this\n    {\n        this.runners.reset.emit();\n\n        return this;\n    }\n\n    /** Clear the frame buffer. */\n    clear(): void\n    {\n        this.renderTexture.bind();\n        this.renderTexture.clear();\n    }\n\n    /**\n     * Removes everything from the renderer (event listeners, spritebatch, etc...)\n     * @param [removeView=false] - Removes the Canvas element from the DOM.\n     *  See: https://github.com/pixijs/pixijs/issues/2233\n     */\n    destroy(removeView = false): void\n    {\n        this.runners.destroy.items.reverse();\n\n        this.emitWithCustomOptions(this.runners.destroy, {\n            _view: removeView,\n        });\n\n        super.destroy();\n    }\n\n    /** Collection of plugins */\n    get plugins(): IRendererPlugins\n    {\n        return this._plugin.plugins;\n    }\n\n    /** The number of msaa samples of the canvas. */\n    get multisample(): MSAA_QUALITY\n    {\n        return this._multisample.multisample;\n    }\n\n    /**\n     * Same as view.width, actual number of pixels in the canvas by horizontal.\n     * @member {number}\n     * @readonly\n     * @default 800\n     */\n    get width(): number\n    {\n        return this._view.element.width;\n    }\n\n    /**\n     * Same as view.height, actual number of pixels in the canvas by vertical.\n     * @default 600\n     */\n    get height(): number\n    {\n        return this._view.element.height;\n    }\n\n    /** The resolution / device pixel ratio of the renderer. */\n    get resolution(): number\n    {\n        return this._view.resolution;\n    }\n    set resolution(value: number)\n    {\n        this._view.resolution = value;\n        this.runners.resolutionChange.emit(value);\n    }\n\n    /** Whether CSS dimensions of canvas view should be resized to screen dimensions automatically. */\n    get autoDensity(): boolean\n    {\n        return this._view.autoDensity;\n    }\n\n    /** The canvas element that everything is drawn to.*/\n    get view(): ICanvas\n    {\n        return this._view.element;\n    }\n\n    /**\n     * Measurements of the screen. (0, 0, screenWidth, screenHeight).\n     *\n     * Its safe to use as filterArea or hitArea for the whole stage.\n     * @member {PIXI.Rectangle}\n     */\n    get screen(): Rectangle\n    {\n        return this._view.screen;\n    }\n\n    /** the last object rendered by the renderer. Useful for other plugins like interaction managers */\n    get lastObjectRendered(): IRenderableObject\n    {\n        return this.objectRenderer.lastObjectRendered;\n    }\n\n    /** Flag if we are rendering to the screen vs renderTexture */\n    get renderingToScreen(): boolean\n    {\n        return this.objectRenderer.renderingToScreen;\n    }\n\n    /** When logging Pixi to the console, this is the name we will show */\n    get rendererLogId(): string\n    {\n        return `WebGL ${this.context.webGLVersion}`;\n    }\n\n    /**\n     * This sets weather the screen is totally cleared between each frame withthe background color and alpha\n     * @deprecated since 7.0.0\n     */\n    get clearBeforeRender(): boolean\n    {\n        // #if _DEBUG\n        // eslint-disable-next-line max-len\n        deprecation('7.0.0', 'renderer.clearBeforeRender has been deprecated, please use renderer.background.clearBeforeRender instead.');\n        // #endif\n\n        return this.background.clearBeforeRender;\n    }\n\n    /**\n     * Pass-thru setting for the canvas' context `alpha` property. This is typically\n     * not something you need to fiddle with. If you want transparency, use `backgroundAlpha`.\n     * @deprecated since 7.0.0\n     * @member {boolean}\n     */\n    get useContextAlpha(): boolean | 'notMultiplied'\n    {\n        // #if _DEBUG\n        // eslint-disable-next-line max-len\n        deprecation('7.0.0', 'renderer.useContextAlpha has been deprecated, please use renderer.context.premultipliedAlpha instead.');\n        // #endif\n\n        return this.context.useContextAlpha;\n    }\n\n    /**\n     * readonly drawing buffer preservation\n     * we can only know this if Pixi created the context\n     * @deprecated since 7.0.0\n     */\n    get preserveDrawingBuffer(): boolean\n    {\n        // #if _DEBUG\n        // eslint-disable-next-line max-len\n        deprecation('7.0.0', 'renderer.preserveDrawingBuffer has been deprecated, we cannot truly know this unless pixi created the context');\n        // #endif\n\n        return this.context.preserveDrawingBuffer;\n    }\n\n    /**\n     * The background color to fill if not transparent\n     * @member {number}\n     * @deprecated since 7.0.0\n     */\n    get backgroundColor(): number\n    {\n        // #if _DEBUG\n        // eslint-disable-next-line max-len\n        deprecation('7.0.0', 'renderer.backgroundColor has been deprecated, use renderer.background.color instead.');\n        // #endif\n\n        return this.background.color;\n    }\n\n    set backgroundColor(value: number)\n    {\n        // #if _DEBUG\n        deprecation('7.0.0', 'renderer.backgroundColor has been deprecated, use renderer.background.color instead.');\n        // #endif\n\n        this.background.color = value;\n    }\n\n    /**\n     * The background color alpha. Setting this to 0 will make the canvas transparent.\n     * @member {number}\n     * @deprecated since 7.0.0\n     */\n    get backgroundAlpha(): number\n    {\n        // #if _DEBUG\n        // eslint-disable-next-line max-len\n        deprecation('7.0.0', 'renderer.backgroundAlpha has been deprecated, use renderer.background.alpha instead.');\n        // #endif\n\n        return this.background.color;\n    }\n\n    /**\n     * @deprecated since 7.0.0\n     */\n    set backgroundAlpha(value: number)\n    {\n        // #if _DEBUG\n        // eslint-disable-next-line max-len\n        deprecation('7.0.0', 'renderer.backgroundAlpha has been deprecated, use renderer.background.alpha instead.');\n        // #endif\n\n        this.background.alpha = value;\n    }\n\n    /**\n     * @deprecated since 7.0.0\n     */\n    get powerPreference(): WebGLPowerPreference\n    {\n        // #if _DEBUG\n        // eslint-disable-next-line max-len\n        deprecation('7.0.0', 'renderer.powerPreference has been deprecated, we can only know this if pixi creates the context');\n        // #endif\n\n        return this.context.powerPreference;\n    }\n\n    /**\n     * Useful function that returns a texture of the display object that can then be used to create sprites\n     * This can be quite useful if your displayObject is complicated and needs to be reused multiple times.\n     * @param displayObject - The displayObject the object will be generated from.\n     * @param {object} options - Generate texture options.\n     * @param {PIXI.SCALE_MODES} options.scaleMode - The scale mode of the texture.\n     * @param {number} options.resolution - The resolution / device pixel ratio of the texture being generated.\n     * @param {PIXI.Rectangle} options.region - The region of the displayObject, that shall be rendered,\n     *        if no region is specified, defaults to the local bounds of the displayObject.\n     * @param {PIXI.MSAA_QUALITY} options.multisample - The number of samples of the frame buffer.\n     * @returns A texture of the graphics object.\n     */\n    generateTexture(displayObject: IRenderableObject, options?: IGenerateTextureOptions): RenderTexture\n    {\n        return this.textureGenerator.generateTexture(displayObject, options);\n    }\n\n    /**\n     * Collection of installed plugins. These are included by default in PIXI, but can be excluded\n     * by creating a custom build. Consult the README for more information about creating custom\n     * builds and excluding plugins.\n     * @private\n     */\n    static readonly __plugins: IRendererPlugins = {};\n\n    /**\n     * The collection of installed systems.\n     * @private\n     */\n    static readonly __systems: Record<string, any> = {};\n}\n\n// Handle registration of extensions\nextensions.handleByMap(ExtensionType.RendererPlugin, Renderer.__plugins);\nextensions.handleByMap(ExtensionType.RendererSystem, 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