samien
/
three.js
同期ミラー https://github.com/mrdoob/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgpu - deferred rendering</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<meta property="og:title" content="three.js webgpu - deferred rendering">
		<meta property="og:type" content="website">
		<meta property="og:url" content="https://threejs.org/examples/webgpu_deferred.html">
		<meta property="og:image" content="https://threejs.org/examples/screenshots/webgpu_deferred.jpg">
		<link type="text/css" rel="stylesheet" href="example.css">
	</head>
	<body>

		<div id="info">
			<a href="https://threejs.org/" target="_blank" rel="noopener" class="logo-link"></a>

			<div class="title-wrapper">
				<a href="https://threejs.org/" target="_blank" rel="noopener">three.js</a><span>Deferred Rendering</span>
			</div>

			<small>
				Simple deferred rendering using custom pipeline.
			</small>
		</div>

		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.webgpu.js",
					"three/webgpu": "../build/three.webgpu.js",
					"three/tsl": "../build/three.tsl.js",
					"three/addons/": "./jsm/"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three/webgpu';
			import { vec4, normalView, pass, diffuseColor, positionGeometry, positionView, positionViewDirection, roughness, metalness, mrt, Fn, overrideNodes } from 'three/tsl';

			import { Inspector } from 'three/addons/inspector/Inspector.js';

			import { UltraHDRLoader } from 'three/addons/loaders/UltraHDRLoader.js';

			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
			import { TeapotGeometry } from 'three/addons/geometries/TeapotGeometry.js';

			const RESOLVE_LAYER = 2;

			let camera, scene, renderer;
			let renderPipeline;
			let lightGroup, planesGroup;
			let params;

			const timer = new THREE.Timer();

			init();

			function init() {

				const container = document.createElement( 'div' );
				document.body.appendChild( container );

				// scene

				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.25, 20 );
				camera.position.set( - 1.8, 0.6, 2.7 );

				scene = new THREE.Scene();

				new UltraHDRLoader()
					.setPath( 'textures/equirectangular/' )
					.load( 'royal_esplanade_2k.hdr.jpg', function ( texture ) {

						texture.mapping = THREE.EquirectangularReflectionMapping;

						scene.background = texture;
						scene.environment = texture;

						// teapot model
						const teapotGeometry = new TeapotGeometry( 0.4, 18 );
						const teapotMaterial = new THREE.MeshStandardMaterial( { color: 0x333333, roughness: 0.2, metalness: 0.8 } );
						const teapot = new THREE.Mesh( teapotGeometry, teapotMaterial );
						teapot.position.y = - 0.15;
						scene.add( teapot );

					} );

				// light group
				lightGroup = new THREE.Group();
				lightGroup.position.y = - 0.15;
				scene.add( lightGroup );

				const numLights = 8;
				const radius = 1.2;
				const sphereGeometry = new THREE.SphereGeometry( 0.03, 16, 8 );

				for ( let i = 0; i < numLights; i ++ ) {

					const angle = ( i / numLights ) * Math.PI * 2;
					const x = Math.cos( angle ) * radius;
					const z = Math.sin( angle ) * radius;

					const colorHex = new THREE.Color().setHSL( i / numLights, 1.0, 0.5 );

					const lightMat = new THREE.MeshStandardMaterial( { color: colorHex } );
					const lightMesh = new THREE.Mesh( sphereGeometry, lightMat );

					const light = new THREE.PointLight( colorHex, 5, 5 );
					light.layers.enable( RESOLVE_LAYER );
					light.position.set( x, 0, z );
					light.add( lightMesh );

					lightGroup.add( light );

				}

				// planes group
				planesGroup = new THREE.Group();
				planesGroup.position.y = - 0.15;
				scene.add( planesGroup );

				const planeGeometry = new THREE.PlaneGeometry( 0.4, 0.4 );
				const planeMaterial = new THREE.MeshStandardMaterial( { color: 0x999999, roughness: 0.5, metalness: 0.5, side: THREE.DoubleSide, transparent: true, opacity: 0.5 } );

				const numPlanes = 6;
				const planesRadius = 1.5;

				for ( let i = 0; i < numPlanes; i ++ ) {

					const angle = ( i / numPlanes ) * Math.PI * 2;

					const pivot = new THREE.Group();
					pivot.rotation.y = angle;
					planesGroup.add( pivot );

					const plane = new THREE.Mesh( planeGeometry, planeMaterial );
					plane.position.z = planesRadius;
					pivot.add( plane );

				}

				// renderer

				renderer = new THREE.WebGPURenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.setAnimationLoop( render );
				renderer.toneMapping = THREE.ACESFilmicToneMapping;
				renderer.inspector = new Inspector();
				container.appendChild( renderer.domElement );

				// opaque pass

				const opaquePass = pass( scene, camera );
				opaquePass.name = 'opaque pass';
				opaquePass.transparent = false;
				opaquePass.setLayers( new THREE.Layers() ); // default layer 0 is used by the renderer
				opaquePass.setMRT( mrt( {
					output: diffuseColor,
					position: vec4( positionView, metalness ),
					normal: vec4( normalView, roughness )
				} ) );

				opaquePass.lighting = new THREE.Lighting();
				opaquePass.lighting.enabled = false;

				// opaque nodes

				const opaqueOutputNode = opaquePass.getTextureNode( 'output' ).toInspector( 'output' );
				const opaquePositionView = opaquePass.getTextureNode( 'position' ).xyz.toInspector( 'position' );
				const opaqueNormalView = opaquePass.getTextureNode( 'normal' ).xyz.toInspector( 'normal' );
				const opaqueDepthNode = opaquePass.getTextureNode( 'depth' ).toInspector( 'depth' );
				const opaqueMetalness = opaquePass.getTextureNode( 'position' ).w.toInspector( 'metalness' );
				const opaqueRoughness = opaquePass.getTextureNode( 'normal' ).w.toInspector( 'roughness' );

				// resolve opaque pass - deferred lighting

				const resolveLayers = new THREE.Layers();
				resolveLayers.disableAll();
				resolveLayers.enable( RESOLVE_LAYER );

				// the resolve material must be compatible with the other materials in the scene;
				// in common deferred rendering scenarios, a standardized material is used.

				const resolveMaterial = new THREE.MeshStandardNodeMaterial();
				resolveMaterial.colorNode = Fn( () => {

					opaqueDepthNode.greaterThanEqual( 1.0 ).discard();

					return opaqueOutputNode;

				} )();
				resolveMaterial.metalnessNode = opaqueMetalness;
				resolveMaterial.roughnessNode = opaqueRoughness;
				resolveMaterial.vertexNode = vec4( positionGeometry.xy, 0.0, 1.0 );
				resolveMaterial.depthNode = opaqueDepthNode;
				resolveMaterial.contextNode =
					overrideNodes( [
						[ positionView, opaquePositionView ],
						[ positionViewDirection, opaquePositionView.negate().normalize() ],
						[ normalView, opaqueNormalView ]
					] );

				const resolveMesh = new THREE.QuadMesh( resolveMaterial );
				resolveMesh.layers.set( RESOLVE_LAYER );
				scene.add( resolveMesh );

				const resolvedPass = pass( scene, camera );
				resolvedPass.setLayers( resolveLayers );
				resolvedPass.lighting = new THREE.Lighting();

				// transparent pass

				const opaqueDepthTexture = opaquePass.getTexture( 'depth' );

				const transparentPass = pass( scene, camera, { depthTexture: opaqueDepthTexture, autoClearDepth: false } );
				transparentPass.name = 'transparent pass';
				transparentPass.setLayers( new THREE.Layers() ); // default layer 0 is used by the renderer
				transparentPass.opaque = false;

				// forward pass

				const forwardPass = pass( scene, camera ).toInspector( 'forward' );

				// resolved - render pipeline

				const opaqueNode = resolvedPass.toInspector( 'resolved opaque' );
				const transparentNode = transparentPass.toInspector( 'transparent' );

				const deferredNode = vec4( opaqueNode.rgb.mul( transparentNode.a.oneMinus() ).add( transparentNode.rgb ), 1.0 );

				renderPipeline = new THREE.RenderPipeline( renderer );
				renderPipeline.outputNode = deferredNode;

				// gui

				params = {
					mode: 'deferred',
					animated: true
				};

				const gui = renderer.inspector.createParameters( 'Settings' );
				gui.add( params, 'mode', [ 'forward', 'deferred' ] ).onChange( ( value ) => {

					renderPipeline.outputNode = ( value === 'forward' ) ? forwardPass : deferredNode;
					renderPipeline.needsUpdate = true;

				} );
				gui.add( params, 'animated' );

				// controls

				const controls = new OrbitControls( camera, renderer.domElement );
				controls.minDistance = 2;
				controls.maxDistance = 10;
				controls.target.set( 0, 0, - 0.2 );
				controls.update();

				window.addEventListener( 'resize', onWindowResize );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			//

			function render() {

				timer.update();

				if ( params.animated ) {

					const delta = timer.getDelta();

					lightGroup.rotation.y += delta * 1.0;
					planesGroup.rotation.y -= delta * 0.5;

				}

				renderPipeline.render();

			}

		</script>

	</body>
</html>