Added webgpu_morphtargets example

mrdoob · Jun 24, 2023 · 35a85df · 35a85df
1 parent 7bac302
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diff --git a/examples/files.json b/examples/files.json
@@ -325,6 +325,7 @@
 		"webgpu_loader_gltf_compressed",
 		"webgpu_materials",
 		"webgpu_materials_video",
+		"webgpu_morphtargets",
 		"webgpu_particles",
 		"webgpu_rtt",
 		"webgpu_sandbox",

diff --git a/examples/screenshots/webgpu_morphtargets.jpg b/examples/screenshots/webgpu_morphtargets.jpg
diff --git a/examples/webgpu_morphtargets.html b/examples/webgpu_morphtargets.html
@@ -0,0 +1,182 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<title>three.js webgpu - morph targets</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="container"></div>
+		<div id="info">
+			<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - morph targets<br/>
+			by <a href="https://discoverthreejs.com/" target="_blank" rel="noopener">Discover three.js</a>
+		</div>
+
+		<!-- Import maps polyfill -->
+		<!-- Remove this when import maps will be widely supported -->
+		<script async src="https://unpkg.com/es-module-shims@1.6.3/dist/es-module-shims.js"></script>
+
+		<script type="importmap">
+			{
+				"imports": {
+					"three": "../build/three.module.js",
+					"three/addons/": "./jsm/",
+					"three/nodes": "./jsm/nodes/Nodes.js"
+				}
+			}
+		</script>
+
+		<script type="module">
+
+			import * as THREE from 'three';
+
+			import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
+			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
+
+			import WebGPU from 'three/addons/capabilities/WebGPU.js';
+			import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';
+
+			let container, camera, scene, renderer, mesh;
+
+			init();
+
+			function init() {
+
+				if ( WebGPU.isAvailable() === false ) {
+
+					document.body.appendChild( WebGPU.getErrorMessage() );
+
+					throw new Error( 'No WebGPU support' );
+
+				}
+
+				container = document.getElementById( 'container' );
+
+				scene = new THREE.Scene();
+				scene.background = new THREE.Color( 0x8FBCD4 );
+
+				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 20 );
+				camera.position.z = 10;
+				scene.add( camera );
+
+				scene.add( new THREE.AmbientLight( 0x8FBCD4, 1.5 ) );
+
+				const pointLight = new THREE.PointLight( 0xffffff, 200 );
+				camera.add( pointLight );
+
+				const geometry = createGeometry();
+
+				const material = new THREE.MeshPhongMaterial( {
+					color: 0xff0000,
+					flatShading: true
+				} );
+
+				mesh = new THREE.Mesh( geometry, material );
+				scene.add( mesh );
+
+				initGUI();
+
+				renderer = new WebGPURenderer( { antialias: true } );
+				renderer.setPixelRatio( window.devicePixelRatio );
+				renderer.setSize( window.innerWidth, window.innerHeight );
+				renderer.setAnimationLoop( function () {
+
+					renderer.render( scene, camera );
+
+				} );
+				container.appendChild( renderer.domElement );
+
+				const controls = new OrbitControls( camera, renderer.domElement );
+				controls.enableZoom = false;
+
+				window.addEventListener( 'resize', onWindowResize );
+
+			}
+
+			function createGeometry() {
+
+				const geometry = new THREE.BoxGeometry( 2, 2, 2, 32, 32, 32 );
+
+				// create an empty array to hold targets for the attribute we want to morph
+				// morphing positions and normals is supported
+				geometry.morphAttributes.position = [];
+
+				// the original positions of the cube's vertices
+				const positionAttribute = geometry.attributes.position;
+
+				// for the first morph target we'll move the cube's vertices onto the surface of a sphere
+				const spherePositions = [];
+
+				// for the second morph target, we'll twist the cubes vertices
+				const twistPositions = [];
+				const direction = new THREE.Vector3( 1, 0, 0 );
+				const vertex = new THREE.Vector3();
+
+				for ( let i = 0; i < positionAttribute.count; i ++ ) {
+
+					const x = positionAttribute.getX( i );
+					const y = positionAttribute.getY( i );
+					const z = positionAttribute.getZ( i );
+
+					spherePositions.push(
+
+						x * Math.sqrt( 1 - ( y * y / 2 ) - ( z * z / 2 ) + ( y * y * z * z / 3 ) ),
+						y * Math.sqrt( 1 - ( z * z / 2 ) - ( x * x / 2 ) + ( z * z * x * x / 3 ) ),
+						z * Math.sqrt( 1 - ( x * x / 2 ) - ( y * y / 2 ) + ( x * x * y * y / 3 ) )
+
+					);
+
+					// stretch along the x-axis so we can see the twist better
+					vertex.set( x * 2, y, z );
+
+					vertex.applyAxisAngle( direction, Math.PI * x / 2 ).toArray( twistPositions, twistPositions.length );
+
+				}
+
+				// add the spherical positions as the first morph target
+				geometry.morphAttributes.position[ 0 ] = new THREE.Float32BufferAttribute( spherePositions, 3 );
+
+				// add the twisted positions as the second morph target
+				geometry.morphAttributes.position[ 1 ] = new THREE.Float32BufferAttribute( twistPositions, 3 );
+
+				return geometry;
+
+			}
+
+			function initGUI() {
+
+				// Set up dat.GUI to control targets
+				const params = {
+					Spherify: 0,
+					Twist: 0,
+				};
+				const gui = new GUI( { title: 'Morph Targets' } );
+
+				gui.add( params, 'Spherify', 0, 1 ).step( 0.01 ).onChange( function ( value ) {
+
+					mesh.morphTargetInfluences[ 0 ] = value;
+
+				} );
+				gui.add( params, 'Twist', 0, 1 ).step( 0.01 ).onChange( function ( value ) {
+
+					mesh.morphTargetInfluences[ 1 ] = value;
+
+				} );
+
+			}
+
+			function onWindowResize() {
+
+				camera.aspect = window.innerWidth / window.innerHeight;
+				camera.updateProjectionMatrix();
+
+				renderer.setSize( window.innerWidth, window.innerHeight );
+
+			}
+
+		</script>
+
+	</body>
+</html>
diff --git a/test/e2e/puppeteer.js b/test/e2e/puppeteer.js
@@ -123,6 +123,7 @@ const exceptionList = [
 	'webgpu_loader_gltf_compressed',
 	'webgpu_materials',
 	'webgpu_materials_video',
+	'webgpu_morphtargets',
 	'webgpu_particles',
 	'webgpu_rtt',
 	'webgpu_sandbox',