mrdoob · sunag · Jul 10, 2024 · Jul 8, 2024 · Jul 8, 2024 · Jul 8, 2024
diff --git a/examples/files.json b/examples/files.json
@@ -357,6 +357,8 @@
 		"webgpu_mirror",
 		"webgpu_morphtargets",
 		"webgpu_morphtargets_face",
+		"webgpu_mrt",
+		"webgpu_mrt_mask",
 		"webgpu_multiple_rendertargets",
 		"webgpu_multiple_rendertargets_readback",
 		"webgpu_multisampled_renderbuffers",

diff --git a/examples/screenshots/webgpu_backdrop.jpg b/examples/screenshots/webgpu_backdrop.jpg
diff --git a/examples/screenshots/webgpu_mrt.jpg b/examples/screenshots/webgpu_mrt.jpg
diff --git a/examples/screenshots/webgpu_mrt_mask.jpg b/examples/screenshots/webgpu_mrt_mask.jpg
diff --git a/examples/screenshots/webgpu_multiple_rendertargets.jpg b/examples/screenshots/webgpu_multiple_rendertargets.jpg
diff --git a/examples/screenshots/webgpu_multiple_rendertargets_readback.jpg b/examples/screenshots/webgpu_multiple_rendertargets_readback.jpg
diff --git a/examples/webgpu_backdrop.html b/examples/webgpu_backdrop.html
@@ -121,7 +121,7 @@
 				renderer.setPixelRatio( window.devicePixelRatio );
 				renderer.setSize( window.innerWidth, window.innerHeight );
 				renderer.setAnimationLoop( animate );
-				renderer.toneMapping = THREE.LinearToneMapping;
+				renderer.toneMapping = THREE.NeutralToneMapping;
 				renderer.toneMappingExposure = 0.3;
 				document.body.appendChild( renderer.domElement );
 

diff --git a/examples/webgpu_mrt.html b/examples/webgpu_mrt.html
@@ -0,0 +1,152 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<title>three.js webgpu - mrt</title>
+		<meta charset="utf-8">
+		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
+		<link type="text/css" rel="stylesheet" href="main.css">
+	</head>
+	<body>
+
+		<div id="info">
+			<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - mrt<br />
+			Final / Beauty / Normal / Emissive / Diffuse
+		</div>
+
+		<script type="importmap">
+			{
+				"imports": {
+					"three": "../build/three.webgpu.js",
+					"three/tsl": "../build/three.webgpu.js",
+					"three/addons/": "./jsm/"
+				}
+			}
+		</script>
+
+		<script type="module">
+
+			import * as THREE from 'three';
+			import { output, transformedNormalWorld, pass, step, diffuseColor, emissive, viewportTopLeft, mix, mrt, tslFn } from 'three/tsl';
+
+			import { RGBELoader } from 'three/addons/loaders/RGBELoader.js';
+
+			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
+			import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
+
+			let camera, scene, renderer;
+			let postProcessing;
+
+			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 RGBELoader()
+					.setPath( 'textures/equirectangular/' )
+					.load( 'royal_esplanade_1k.hdr', function ( texture ) {
+
+						texture.mapping = THREE.EquirectangularReflectionMapping;
+
+						scene.background = texture;
+						scene.environment = texture;
+
+						// model
+
+						const loader = new GLTFLoader().setPath( 'models/gltf/DamagedHelmet/glTF/' );
+						loader.load( 'DamagedHelmet.gltf', function ( gltf ) {
+
+							scene.add( gltf.scene );
+
+						} );
+
+					} );
+
+				// renderer
+
+				renderer = new THREE.WebGPURenderer( { antialias: true } );
+				renderer.setPixelRatio( window.devicePixelRatio );
+				renderer.setSize( window.innerWidth, window.innerHeight );
+				renderer.setAnimationLoop( render );
+				renderer.toneMapping = THREE.ACESFilmicToneMapping;
+				container.appendChild( renderer.domElement );
+
+				// post processing
+
+				const scenePass = pass( scene, camera, { minFilter: THREE.NearestFilter, magFilter: THREE.NearestFilter } );
+				scenePass.setMRT( mrt( {
+					output: output,
+					normal: transformedNormalWorld.directionToColor(),
+					diffuse: diffuseColor,
+					emissive: emissive
+				} ) );
+
+				// optimize textures
+
+				const normalTexture = scenePass.getTexture( 'normal' );
+				const diffuseTexture = scenePass.getTexture( 'diffuse' );
+				const emissiveTexture = scenePass.getTexture( 'emissive' );
+
+				normalTexture.type = diffuseTexture.type = emissiveTexture.type = THREE.UnsignedByteType;
+
+				// post processing - mrt
+
+				postProcessing = new THREE.PostProcessing( renderer );
+				postProcessing.outputColorTransform = false;
+				postProcessing.outputNode = tslFn( () => {
+
+					const output = scenePass.getTextureNode( 'output' ); // output name is optional here
+					const normal = scenePass.getTextureNode( 'normal' );
+					const diffuse = scenePass.getTextureNode( 'diffuse' );
+					const emissive = scenePass.getTextureNode( 'emissive' );
+
+					const out = mix( output.renderOutput(), output, step( 0.2, viewportTopLeft.x ) );
+					const nor = mix( out, normal, step( 0.4, viewportTopLeft.x ) );
+					const emi = mix( nor, emissive, step( 0.6, viewportTopLeft.x ) );
+					const dif = mix( emi, diffuse, step( 0.8, viewportTopLeft.x ) );
+
+					return dif;
+
+				} )();
+
+				// 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() {
+
+				postProcessing.render();
+
+			}
+
+		</script>
+
+	</body>
+</html>
diff --git a/examples/webgpu_mrt_mask.html b/examples/webgpu_mrt_mask.html
@@ -0,0 +1,170 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<title>three.js webgpu - mrt mask</title>
+		<meta charset="utf-8">
+		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
+		<link type="text/css" rel="stylesheet" href="main.css">
+	</head>
+	<body>
+
+		<div id="info">
+			<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - mrt mask
+			<br>The mask is applied followed by a gaussian blur only on some selected materials.
+		</div>
+
+		<script type="importmap">
+			{
+				"imports": {
+					"three": "../src/Three.WebGPU.js",
+					"three/tsl": "../src/Three.WebGPU.js",
+					"three/addons/": "./jsm/"
+				}
+			}
+		</script>
+
+		<script type="module">
+
+			import * as THREE from 'three';
+			import { color, viewportTopLeft, mrt, output, pass, vec4 } from 'three/tsl';
+
+			import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
+
+			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
+
+			let camera, scene, renderer;
+			let postProcessing;
+			let spheres, rotate = true;
+			let mixer, clock;
+
+			init();
+
+			function init() {
+
+				camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.01, 100 );
+				camera.position.set( 1, 2, 3 );
+
+				scene = new THREE.Scene();
+				scene.backgroundNode = viewportTopLeft.y.mix( color( 0x66bbff ), color( 0x4466ff ) ).mul( .05 );
+				camera.lookAt( 0, 1, 0 );
+
+				clock = new THREE.Clock();
+
+				// lights
+
+				const light = new THREE.SpotLight( 0xffffff, 1 );
+				light.power = 2000;
+				camera.add( light );
+				scene.add( camera );
+
+				const loader = new GLTFLoader();
+				loader.load( 'models/gltf/Michelle.glb', function ( gltf ) {
+
+					const object = gltf.scene;
+					mixer = new THREE.AnimationMixer( object );
+
+					const material = object.children[ 0 ].children[ 0 ].material;
+
+					// add glow effect
+					material.mrtNode = mrt( { mask: output.add( 1 ) } );
+
+					const action = mixer.clipAction( gltf.animations[ 0 ] );
+					action.play();
+
+					scene.add( object );
+
+				} );
+
+				// spheres
+
+				const geometry = new THREE.SphereGeometry( .3, 32, 16 );
+
+				spheres = new THREE.Group();
+				scene.add( spheres );
+
+				function addSphere( color, mrtNode = null ) {
+
+					const distance = 1;
+					const id = spheres.children.length;
+					const rotation = THREE.MathUtils.degToRad( id * 90 );
+
+					const material = new THREE.MeshStandardNodeMaterial( { color } );
+					material.mrtNode = mrtNode;
+
+					const mesh = new THREE.Mesh( geometry, material );
+					mesh.position.set(
+						Math.cos( rotation ) * distance,
+						1,
+						Math.sin( rotation ) * distance
+					);
+
+					spheres.add( mesh );
+
+				}
+
+				addSphere( 0x0000ff, mrt( { mask: output } ) );
+				addSphere( 0x00ff00 );
+				addSphere( 0xff0000 );
+				addSphere( 0x00ffff );
+
+				// renderer
+
+				renderer = new THREE.WebGPURenderer( { antialias: true } );
+				renderer.setPixelRatio( window.devicePixelRatio );
+				renderer.setSize( window.innerWidth, window.innerHeight );
+				renderer.setAnimationLoop( animate );
+				renderer.toneMapping = THREE.NeutralToneMapping;
+				renderer.toneMappingExposure = 0.4;
+				document.body.appendChild( renderer.domElement );
+
+				// post processing
+
+				const scenePass = pass( scene, camera );
+				scenePass.setMRT( mrt( {
+					output: output.renderOutput(),
+					mask: vec4( 0 ) // empty as default, custom materials can set this
+				} ) );
+
+				const colorPass = scenePass.getTextureNode();
+				const maskPass = scenePass.getTextureNode( 'mask' );
+
+				postProcessing = new THREE.PostProcessing( renderer );
+				postProcessing.outputColorTransform = false;
+				postProcessing.outputNode = colorPass.add( maskPass.gaussianBlur( 1, 10 ).mul( .3 ) ).renderOutput();
+
+				// controls
+
+				const controls = new OrbitControls( camera, renderer.domElement );
+				controls.target.set( 0, 1, 0 );
+				controls.addEventListener( 'start', () => rotate = false );
+				controls.addEventListener( 'end', () => rotate = true );
+				controls.update();
+
+				window.addEventListener( 'resize', onWindowResize );
+
+			}
+
+			function onWindowResize() {
+
+				camera.aspect = window.innerWidth / window.innerHeight;
+				camera.updateProjectionMatrix();
+
+				renderer.setSize( window.innerWidth, window.innerHeight );
+
+			}
+
+			function animate() {
+
+				const delta = clock.getDelta();
+
+				if ( mixer ) mixer.update( delta );
+
+				if ( rotate ) spheres.rotation.y += delta * 0.5;
+
+				postProcessing.render();
+
+			}
+
+		</script>
+	</body>
+</html>