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963 lines
21 KiB
963 lines
21 KiB
import { GPUIndexFormat, GPUTextureFormat, GPUStoreOp } from './constants.js'; |
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import WebGPUObjects from './WebGPUObjects.js'; |
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import WebGPUAttributes from './WebGPUAttributes.js'; |
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import WebGPUGeometries from './WebGPUGeometries.js'; |
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import WebGPUInfo from './WebGPUInfo.js'; |
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import WebGPUProperties from './WebGPUProperties.js'; |
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import WebGPURenderPipelines from './WebGPURenderPipelines.js'; |
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import WebGPUComputePipelines from './WebGPUComputePipelines.js'; |
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import WebGPUBindings from './WebGPUBindings.js'; |
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import WebGPURenderLists from './WebGPURenderLists.js'; |
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import WebGPUTextures from './WebGPUTextures.js'; |
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import WebGPUBackground from './WebGPUBackground.js'; |
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import WebGPUNodes from './nodes/WebGPUNodes.js'; |
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import { Frustum, Matrix4, Vector3, Color, LinearEncoding } from 'three'; |
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console.info( 'THREE.WebGPURenderer: Modified Matrix4.makePerspective() and Matrix4.makeOrtographic() to work with WebGPU, see https://github.com/mrdoob/three.js/issues/20276.' ); |
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Matrix4.prototype.makePerspective = function ( left, right, top, bottom, near, far ) { |
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const te = this.elements; |
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const x = 2 * near / ( right - left ); |
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const y = 2 * near / ( top - bottom ); |
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const a = ( right + left ) / ( right - left ); |
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const b = ( top + bottom ) / ( top - bottom ); |
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const c = - far / ( far - near ); |
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const d = - far * near / ( far - near ); |
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te[ 0 ] = x; te[ 4 ] = 0; te[ 8 ] = a; te[ 12 ] = 0; |
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te[ 1 ] = 0; te[ 5 ] = y; te[ 9 ] = b; te[ 13 ] = 0; |
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te[ 2 ] = 0; te[ 6 ] = 0; te[ 10 ] = c; te[ 14 ] = d; |
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te[ 3 ] = 0; te[ 7 ] = 0; te[ 11 ] = - 1; te[ 15 ] = 0; |
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return this; |
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}; |
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Matrix4.prototype.makeOrthographic = function ( left, right, top, bottom, near, far ) { |
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const te = this.elements; |
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const w = 1.0 / ( right - left ); |
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const h = 1.0 / ( top - bottom ); |
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const p = 1.0 / ( far - near ); |
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const x = ( right + left ) * w; |
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const y = ( top + bottom ) * h; |
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const z = near * p; |
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te[ 0 ] = 2 * w; te[ 4 ] = 0; te[ 8 ] = 0; te[ 12 ] = - x; |
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te[ 1 ] = 0; te[ 5 ] = 2 * h; te[ 9 ] = 0; te[ 13 ] = - y; |
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te[ 2 ] = 0; te[ 6 ] = 0; te[ 10 ] = - 1 * p; te[ 14 ] = - z; |
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te[ 3 ] = 0; te[ 7 ] = 0; te[ 11 ] = 0; te[ 15 ] = 1; |
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return this; |
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}; |
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const _frustum = new Frustum(); |
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const _projScreenMatrix = new Matrix4(); |
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const _vector3 = new Vector3(); |
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class WebGPURenderer { |
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constructor( parameters = {} ) { |
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// public |
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this.domElement = ( parameters.canvas !== undefined ) ? parameters.canvas : this._createCanvasElement(); |
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this.autoClear = true; |
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this.autoClearColor = true; |
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this.autoClearDepth = true; |
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this.autoClearStencil = true; |
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this.outputEncoding = LinearEncoding; |
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this.sortObjects = true; |
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// internals |
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this._parameters = Object.assign( {}, parameters ); |
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this._pixelRatio = 1; |
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this._width = this.domElement.width; |
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this._height = this.domElement.height; |
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this._viewport = null; |
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this._scissor = null; |
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this._adapter = null; |
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this._device = null; |
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this._context = null; |
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this._swapChain = null; |
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this._colorBuffer = null; |
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this._depthBuffer = null; |
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this._info = null; |
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this._properties = null; |
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this._attributes = null; |
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this._geometries = null; |
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this._nodes = null; |
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this._bindings = null; |
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this._objects = null; |
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this._renderPipelines = null; |
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this._computePipelines = null; |
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this._renderLists = null; |
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this._textures = null; |
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this._background = null; |
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this._renderPassDescriptor = null; |
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this._currentRenderList = null; |
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this._opaqueSort = null; |
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this._transparentSort = null; |
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this._clearAlpha = 1; |
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this._clearColor = new Color( 0x000000 ); |
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this._clearDepth = 1; |
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this._clearStencil = 0; |
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this._renderTarget = null; |
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// some parameters require default values other than "undefined" |
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this._parameters.antialias = ( parameters.antialias === true ); |
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if ( this._parameters.antialias === true ) { |
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this._parameters.sampleCount = ( parameters.sampleCount === undefined ) ? 4 : parameters.sampleCount; |
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} else { |
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this._parameters.sampleCount = 1; |
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} |
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this._parameters.requiredFeatures = ( parameters.requiredFeatures === undefined ) ? [] : parameters.requiredFeatures; |
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this._parameters.requiredLimits = ( parameters.requiredLimits === undefined ) ? {} : parameters.requiredLimits; |
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} |
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async init() { |
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const parameters = this._parameters; |
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const adapterOptions = { |
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powerPreference: parameters.powerPreference |
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}; |
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const adapter = await navigator.gpu.requestAdapter( adapterOptions ); |
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if ( adapter === null ) { |
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throw new Error( 'WebGPURenderer: Unable to create WebGPU adapter.' ); |
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} |
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const deviceDescriptor = { |
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requiredFeatures: parameters.requiredFeatures, |
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requiredLimits: parameters.requiredLimits |
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}; |
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const device = await adapter.requestDevice( deviceDescriptor ); |
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const context = ( parameters.context !== undefined ) ? parameters.context : this.domElement.getContext( 'webgpu' ); |
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const swapChain = context.configure( { |
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device: device, |
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format: GPUTextureFormat.BGRA8Unorm // this is the only valid swap chain format right now (r121) |
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} ); |
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this._adapter = adapter; |
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this._device = device; |
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this._context = context; |
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this._swapChain = swapChain; |
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this._info = new WebGPUInfo(); |
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this._properties = new WebGPUProperties(); |
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this._attributes = new WebGPUAttributes( device ); |
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this._geometries = new WebGPUGeometries( this._attributes, this._info ); |
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this._textures = new WebGPUTextures( device, this._properties, this._info ); |
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this._objects = new WebGPUObjects( this._geometries, this._info ); |
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this._nodes = new WebGPUNodes( this ); |
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this._computePipelines = new WebGPUComputePipelines( device ); |
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this._renderPipelines = new WebGPURenderPipelines( this, device, parameters.sampleCount, this._nodes ); |
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this._bindings = this._renderPipelines.bindings = new WebGPUBindings( device, this._info, this._properties, this._textures, this._renderPipelines, this._computePipelines, this._attributes, this._nodes ); |
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this._renderLists = new WebGPURenderLists(); |
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this._background = new WebGPUBackground( this ); |
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// |
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this._renderPassDescriptor = { |
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colorAttachments: [ { |
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view: null |
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} ], |
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depthStencilAttachment: { |
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view: null, |
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depthStoreOp: GPUStoreOp.Store, |
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stencilStoreOp: GPUStoreOp.Store |
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} |
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}; |
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this._setupColorBuffer(); |
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this._setupDepthBuffer(); |
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} |
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render( scene, camera ) { |
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// @TODO: move this to animation loop |
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this._nodes.updateFrame(); |
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// |
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if ( scene.autoUpdate === true ) scene.updateMatrixWorld(); |
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if ( camera.parent === null ) camera.updateMatrixWorld(); |
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if ( this._info.autoReset === true ) this._info.reset(); |
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_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse ); |
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_frustum.setFromProjectionMatrix( _projScreenMatrix ); |
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this._currentRenderList = this._renderLists.get( scene, camera ); |
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this._currentRenderList.init(); |
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this._projectObject( scene, camera, 0 ); |
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this._currentRenderList.finish(); |
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if ( this.sortObjects === true ) { |
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this._currentRenderList.sort( this._opaqueSort, this._transparentSort ); |
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} |
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// prepare render pass descriptor |
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const colorAttachment = this._renderPassDescriptor.colorAttachments[ 0 ]; |
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const depthStencilAttachment = this._renderPassDescriptor.depthStencilAttachment; |
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const renderTarget = this._renderTarget; |
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if ( renderTarget !== null ) { |
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// @TODO: Support RenderTarget with antialiasing. |
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const renderTargetProperties = this._properties.get( renderTarget ); |
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colorAttachment.view = renderTargetProperties.colorTextureGPU.createView(); |
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depthStencilAttachment.view = renderTargetProperties.depthTextureGPU.createView(); |
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} else { |
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if ( this._parameters.antialias === true ) { |
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colorAttachment.view = this._colorBuffer.createView(); |
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colorAttachment.resolveTarget = this._context.getCurrentTexture().createView(); |
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} else { |
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colorAttachment.view = this._context.getCurrentTexture().createView(); |
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colorAttachment.resolveTarget = undefined; |
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} |
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depthStencilAttachment.view = this._depthBuffer.createView(); |
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} |
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// |
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this._background.update( scene ); |
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// start render pass |
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const device = this._device; |
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const cmdEncoder = device.createCommandEncoder( {} ); |
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const passEncoder = cmdEncoder.beginRenderPass( this._renderPassDescriptor ); |
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// global rasterization settings for all renderable objects |
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const vp = this._viewport; |
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if ( vp !== null ) { |
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const width = Math.floor( vp.width * this._pixelRatio ); |
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const height = Math.floor( vp.height * this._pixelRatio ); |
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passEncoder.setViewport( vp.x, vp.y, width, height, vp.minDepth, vp.maxDepth ); |
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} |
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const sc = this._scissor; |
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if ( sc !== null ) { |
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const width = Math.floor( sc.width * this._pixelRatio ); |
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const height = Math.floor( sc.height * this._pixelRatio ); |
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passEncoder.setScissorRect( sc.x, sc.y, width, height ); |
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} |
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// process render lists |
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const opaqueObjects = this._currentRenderList.opaque; |
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const transparentObjects = this._currentRenderList.transparent; |
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if ( opaqueObjects.length > 0 ) this._renderObjects( opaqueObjects, camera, passEncoder ); |
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if ( transparentObjects.length > 0 ) this._renderObjects( transparentObjects, camera, passEncoder ); |
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// finish render pass |
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passEncoder.endPass(); |
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device.queue.submit( [ cmdEncoder.finish() ] ); |
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} |
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getContext() { |
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return this._context; |
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} |
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getPixelRatio() { |
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return this._pixelRatio; |
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} |
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getDrawingBufferSize( target ) { |
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return target.set( this._width * this._pixelRatio, this._height * this._pixelRatio ).floor(); |
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} |
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getSize( target ) { |
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return target.set( this._width, this._height ); |
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} |
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setPixelRatio( value = 1 ) { |
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this._pixelRatio = value; |
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this.setSize( this._width, this._height, false ); |
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} |
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setDrawingBufferSize( width, height, pixelRatio ) { |
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this._width = width; |
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this._height = height; |
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this._pixelRatio = pixelRatio; |
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this.domElement.width = Math.floor( width * pixelRatio ); |
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this.domElement.height = Math.floor( height * pixelRatio ); |
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this._configureContext(); |
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this._setupColorBuffer(); |
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this._setupDepthBuffer(); |
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} |
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setSize( width, height, updateStyle = true ) { |
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this._width = width; |
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this._height = height; |
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this.domElement.width = Math.floor( width * this._pixelRatio ); |
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this.domElement.height = Math.floor( height * this._pixelRatio ); |
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if ( updateStyle === true ) { |
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this.domElement.style.width = width + 'px'; |
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this.domElement.style.height = height + 'px'; |
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} |
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this._configureContext(); |
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this._setupColorBuffer(); |
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this._setupDepthBuffer(); |
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} |
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setOpaqueSort( method ) { |
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this._opaqueSort = method; |
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} |
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setTransparentSort( method ) { |
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this._transparentSort = method; |
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} |
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getScissor( target ) { |
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const scissor = this._scissor; |
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target.x = scissor.x; |
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target.y = scissor.y; |
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target.width = scissor.width; |
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target.height = scissor.height; |
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return target; |
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} |
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setScissor( x, y, width, height ) { |
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if ( x === null ) { |
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this._scissor = null; |
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} else { |
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this._scissor = { |
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x: x, |
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y: y, |
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width: width, |
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height: height |
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}; |
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} |
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} |
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getViewport( target ) { |
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const viewport = this._viewport; |
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target.x = viewport.x; |
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target.y = viewport.y; |
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target.width = viewport.width; |
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target.height = viewport.height; |
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target.minDepth = viewport.minDepth; |
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target.maxDepth = viewport.maxDepth; |
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return target; |
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} |
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setViewport( x, y, width, height, minDepth = 0, maxDepth = 1 ) { |
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if ( x === null ) { |
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this._viewport = null; |
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} else { |
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this._viewport = { |
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x: x, |
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y: y, |
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width: width, |
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height: height, |
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minDepth: minDepth, |
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maxDepth: maxDepth |
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}; |
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} |
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} |
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getCurrentEncoding() { |
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const renderTarget = this.getRenderTarget(); |
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return ( renderTarget !== null ) ? renderTarget.texture.encoding : this.outputEncoding; |
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} |
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getCurrentColorFormat() { |
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let format; |
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const renderTarget = this.getRenderTarget(); |
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if ( renderTarget !== null ) { |
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const renderTargetProperties = this._properties.get( renderTarget ); |
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format = renderTargetProperties.colorTextureFormat; |
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} else { |
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format = GPUTextureFormat.BGRA8Unorm; // default swap chain format |
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} |
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return format; |
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} |
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getCurrentDepthStencilFormat() { |
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let format; |
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const renderTarget = this.getRenderTarget(); |
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if ( renderTarget !== null ) { |
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const renderTargetProperties = this._properties.get( renderTarget ); |
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format = renderTargetProperties.depthTextureFormat; |
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} else { |
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format = GPUTextureFormat.Depth24PlusStencil8; |
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} |
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return format; |
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} |
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getClearColor( target ) { |
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return target.copy( this._clearColor ); |
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} |
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setClearColor( color, alpha = 1 ) { |
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this._clearColor.set( color ); |
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this._clearAlpha = alpha; |
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} |
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getClearAlpha() { |
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return this._clearAlpha; |
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} |
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setClearAlpha( alpha ) { |
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this._clearAlpha = alpha; |
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} |
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getClearDepth() { |
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return this._clearDepth; |
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} |
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setClearDepth( depth ) { |
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this._clearDepth = depth; |
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} |
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getClearStencil() { |
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return this._clearStencil; |
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} |
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setClearStencil( stencil ) { |
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this._clearStencil = stencil; |
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} |
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clear() { |
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this._background.clear(); |
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} |
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dispose() { |
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this._objects.dispose(); |
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this._properties.dispose(); |
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this._renderPipelines.dispose(); |
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this._computePipelines.dispose(); |
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this._nodes.dispose(); |
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this._bindings.dispose(); |
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this._info.dispose(); |
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this._renderLists.dispose(); |
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this._textures.dispose(); |
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} |
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setRenderTarget( renderTarget ) { |
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this._renderTarget = renderTarget; |
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if ( renderTarget !== null ) { |
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this._textures.initRenderTarget( renderTarget ); |
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} |
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} |
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compute( computeParams ) { |
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const device = this._device; |
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const cmdEncoder = device.createCommandEncoder( {} ); |
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const passEncoder = cmdEncoder.beginComputePass(); |
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for ( const param of computeParams ) { |
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// pipeline |
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const pipeline = this._computePipelines.get( param ); |
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passEncoder.setPipeline( pipeline ); |
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// bind group |
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const bindGroup = this._bindings.getForCompute( param ).group; |
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this._bindings.update( param ); |
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passEncoder.setBindGroup( 0, bindGroup ); |
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passEncoder.dispatch( param.num ); |
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} |
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passEncoder.endPass(); |
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device.queue.submit( [ cmdEncoder.finish() ] ); |
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} |
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getRenderTarget() { |
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return this._renderTarget; |
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} |
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_projectObject( object, camera, groupOrder ) { |
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const currentRenderList = this._currentRenderList; |
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if ( object.visible === false ) return; |
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const visible = object.layers.test( camera.layers ); |
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if ( visible ) { |
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if ( object.isGroup ) { |
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groupOrder = object.renderOrder; |
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} else if ( object.isLOD ) { |
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if ( object.autoUpdate === true ) object.update( camera ); |
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} else if ( object.isLight ) { |
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//currentRenderState.pushLight( object ); |
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if ( object.castShadow ) { |
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//currentRenderState.pushShadow( object ); |
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} |
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} else if ( object.isSprite ) { |
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if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) { |
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if ( this.sortObjects === true ) { |
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_vector3.setFromMatrixPosition( object.matrixWorld ).applyMatrix4( _projScreenMatrix ); |
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} |
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const geometry = object.geometry; |
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const material = object.material; |
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if ( material.visible ) { |
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currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null ); |
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} |
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} |
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} else if ( object.isLineLoop ) { |
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console.error( 'THREE.WebGPURenderer: Objects of type THREE.LineLoop are not supported. Please use THREE.Line or THREE.LineSegments.' ); |
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} else if ( object.isMesh || object.isLine || object.isPoints ) { |
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if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) { |
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if ( this.sortObjects === true ) { |
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_vector3.setFromMatrixPosition( object.matrixWorld ).applyMatrix4( _projScreenMatrix ); |
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} |
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const geometry = object.geometry; |
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const material = object.material; |
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if ( Array.isArray( material ) ) { |
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const groups = geometry.groups; |
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for ( let i = 0, l = groups.length; i < l; i ++ ) { |
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const group = groups[ i ]; |
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const groupMaterial = material[ group.materialIndex ]; |
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if ( groupMaterial && groupMaterial.visible ) { |
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currentRenderList.push( object, geometry, groupMaterial, groupOrder, _vector3.z, group ); |
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} |
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} |
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} else if ( material.visible ) { |
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currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null ); |
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} |
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} |
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} |
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} |
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const children = object.children; |
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for ( let i = 0, l = children.length; i < l; i ++ ) { |
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this._projectObject( children[ i ], camera, groupOrder ); |
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} |
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} |
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_renderObjects( renderList, camera, passEncoder ) { |
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// process renderable objects |
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for ( let i = 0, il = renderList.length; i < il; i ++ ) { |
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const renderItem = renderList[ i ]; |
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// @TODO: Add support for multiple materials per object. This will require to extract |
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// the material from the renderItem object and pass it with its group data to _renderObject(). |
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const object = renderItem.object; |
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object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld ); |
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object.normalMatrix.getNormalMatrix( object.modelViewMatrix ); |
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this._objects.update( object ); |
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if ( camera.isArrayCamera ) { |
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const cameras = camera.cameras; |
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for ( let j = 0, jl = cameras.length; j < jl; j ++ ) { |
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const camera2 = cameras[ j ]; |
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if ( object.layers.test( camera2.layers ) ) { |
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const vp = camera2.viewport; |
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const minDepth = ( vp.minDepth === undefined ) ? 0 : vp.minDepth; |
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const maxDepth = ( vp.maxDepth === undefined ) ? 1 : vp.maxDepth; |
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passEncoder.setViewport( vp.x, vp.y, vp.width, vp.height, minDepth, maxDepth ); |
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this._nodes.update( object, camera2 ); |
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this._bindings.update( object ); |
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this._renderObject( object, passEncoder ); |
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} |
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} |
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} else { |
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this._nodes.update( object, camera ); |
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this._bindings.update( object ); |
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this._renderObject( object, passEncoder ); |
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} |
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} |
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} |
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_renderObject( object, passEncoder ) { |
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const info = this._info; |
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// pipeline |
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const renderPipeline = this._renderPipelines.get( object ); |
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passEncoder.setPipeline( renderPipeline.pipeline ); |
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// bind group |
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const bindGroup = this._bindings.get( object ).group; |
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passEncoder.setBindGroup( 0, bindGroup ); |
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// index |
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const geometry = object.geometry; |
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const index = geometry.index; |
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const hasIndex = ( index !== null ); |
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if ( hasIndex === true ) { |
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this._setupIndexBuffer( index, passEncoder ); |
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} |
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// vertex buffers |
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this._setupVertexBuffers( geometry.attributes, passEncoder, renderPipeline ); |
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// draw |
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const drawRange = geometry.drawRange; |
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const firstVertex = drawRange.start; |
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const instanceCount = ( geometry.isInstancedBufferGeometry ) ? geometry.instanceCount : 1; |
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if ( hasIndex === true ) { |
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const indexCount = ( drawRange.count !== Infinity ) ? drawRange.count : index.count; |
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passEncoder.drawIndexed( indexCount, instanceCount, firstVertex, 0, 0 ); |
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info.update( object, indexCount, instanceCount ); |
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} else { |
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const positionAttribute = geometry.attributes.position; |
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const vertexCount = ( drawRange.count !== Infinity ) ? drawRange.count : positionAttribute.count; |
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passEncoder.draw( vertexCount, instanceCount, firstVertex, 0 ); |
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info.update( object, vertexCount, instanceCount ); |
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} |
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} |
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_setupIndexBuffer( index, encoder ) { |
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const buffer = this._attributes.get( index ).buffer; |
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const indexFormat = ( index.array instanceof Uint16Array ) ? GPUIndexFormat.Uint16 : GPUIndexFormat.Uint32; |
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encoder.setIndexBuffer( buffer, indexFormat ); |
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} |
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_setupVertexBuffers( geometryAttributes, encoder, renderPipeline ) { |
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const shaderAttributes = renderPipeline.shaderAttributes; |
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for ( const shaderAttribute of shaderAttributes ) { |
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const name = shaderAttribute.name; |
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const slot = shaderAttribute.slot; |
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|
const attribute = geometryAttributes[ name ]; |
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if ( attribute !== undefined ) { |
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const buffer = this._attributes.get( attribute ).buffer; |
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encoder.setVertexBuffer( slot, buffer ); |
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} |
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} |
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} |
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_setupColorBuffer() { |
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const device = this._device; |
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if ( device ) { |
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if ( this._colorBuffer ) this._colorBuffer.destroy(); |
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this._colorBuffer = this._device.createTexture( { |
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size: { |
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width: Math.floor( this._width * this._pixelRatio ), |
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height: Math.floor( this._height * this._pixelRatio ), |
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depthOrArrayLayers: 1 |
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}, |
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sampleCount: this._parameters.sampleCount, |
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format: GPUTextureFormat.BGRA8Unorm, |
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usage: GPUTextureUsage.RENDER_ATTACHMENT |
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} ); |
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} |
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} |
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_setupDepthBuffer() { |
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const device = this._device; |
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|
if ( device ) { |
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|
if ( this._depthBuffer ) this._depthBuffer.destroy(); |
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|
|
this._depthBuffer = this._device.createTexture( { |
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size: { |
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width: Math.floor( this._width * this._pixelRatio ), |
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height: Math.floor( this._height * this._pixelRatio ), |
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depthOrArrayLayers: 1 |
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}, |
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sampleCount: this._parameters.sampleCount, |
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format: GPUTextureFormat.Depth24PlusStencil8, |
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usage: GPUTextureUsage.RENDER_ATTACHMENT |
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} ); |
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} |
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|
|
} |
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|
|
_configureContext() { |
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|
|
const device = this._device; |
|
|
|
if ( device ) { |
|
|
|
this._context.configure( { |
|
device: device, |
|
format: GPUTextureFormat.BGRA8Unorm, |
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usage: GPUTextureUsage.RENDER_ATTACHMENT, |
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size: { |
|
width: Math.floor( this._width * this._pixelRatio ), |
|
height: Math.floor( this._height * this._pixelRatio ), |
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depthOrArrayLayers: 1 |
|
}, |
|
} ); |
|
|
|
} |
|
|
|
} |
|
|
|
_createCanvasElement() { |
|
|
|
const canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); |
|
canvas.style.display = 'block'; |
|
return canvas; |
|
|
|
} |
|
|
|
} |
|
|
|
WebGPURenderer.prototype.isWebGPURenderer = true; |
|
|
|
export default WebGPURenderer;
|
|
|