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212 lines
5.7 KiB
HTML
212 lines
5.7 KiB
HTML
<html lang="en">
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<head>
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<title>three.js webgpu - animation retargeting</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<link type="text/css" rel="stylesheet" href="main.css">
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - animation retargeting<br />
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<a href="https://www.mixamo.com/" target="_blank" rel="noopener">mixamo</a> to <a href="https://readyplayer.me/" target="_blank" rel="noopener">readyplayer.me</a>
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</div>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.webgpu.js",
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"three/webgpu": "../build/three.webgpu.js",
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"three/tsl": "../build/three.tsl.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { screenUV, color, vec2, vec4, reflector, positionWorld } from 'three/tsl';
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import Stats from 'three/addons/libs/stats.module.js';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
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import { FBXLoader } from 'three/addons/loaders/FBXLoader.js';
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import * as SkeletonUtils from 'three/addons/utils/SkeletonUtils.js';
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const [ sourceModel, targetModel ] = await Promise.all( [
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new Promise( ( resolve, reject ) => {
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new FBXLoader().load( './models/fbx/mixamo.fbx', resolve, undefined, reject );
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} ),
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new Promise( ( resolve, reject ) => {
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new GLTFLoader().load( './models/gltf/readyplayer.me.glb', resolve, undefined, reject );
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} )
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] );
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//
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const clock = new THREE.Clock();
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const stats = new Stats();
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document.body.appendChild( stats.dom );
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// scene
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const scene = new THREE.Scene();
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// background
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const horizontalEffect = screenUV.x.mix( color( 0x13172b ), color( 0x311649 ) );
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const lightEffect = screenUV.distance( vec2( 0.5, 1.0 ) ).oneMinus().mul( color( 0x0c5d68 ) );
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scene.backgroundNode = horizontalEffect.add( lightEffect );
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//
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const light = new THREE.HemisphereLight( 0x311649, 0x0c5d68, 10 );
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scene.add( light );
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const backLight = new THREE.DirectionalLight( 0xffffff, 10 );
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backLight.position.set( 0, 5, - 5 );
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scene.add( backLight );
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const keyLight = new THREE.DirectionalLight( 0xfff9ea, 4 );
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keyLight.position.set( 3, 5, 3 );
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scene.add( keyLight );
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const camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, .25, 50 );
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camera.position.set( 0, 3, 5 );
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// add models to scene
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scene.add( sourceModel );
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scene.add( targetModel.scene );
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// reposition models
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sourceModel.position.x -= .9;
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targetModel.scene.position.x += .9;
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// reajust model - mixamo use centimeters, readyplayer.me use meters (three.js scale is meters)
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sourceModel.scale.setScalar( .01 );
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// retarget
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const source = getSource( sourceModel );
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const mixer = retargetModel( source, targetModel );
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// renderer
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const renderer = new THREE.WebGPURenderer( { antialias: true } );
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renderer.toneMapping = THREE.NeutralToneMapping;
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renderer.setAnimationLoop( animate );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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document.body.appendChild( renderer.domElement );
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const controls = new OrbitControls( camera, renderer.domElement );
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controls.minDistance = 3;
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controls.maxDistance = 12;
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controls.target.set( 0, 1, 0 );
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controls.maxPolarAngle = Math.PI / 2;
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// floor
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const reflection = reflector();
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reflection.target.rotateX( - Math.PI / 2 );
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scene.add( reflection.target );
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const reflectionMask = positionWorld.xz.distance( 0 ).mul( .1 ).clamp().oneMinus();
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const floorMaterial = new THREE.NodeMaterial();
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floorMaterial.colorNode = vec4( reflection.rgb, reflectionMask );
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floorMaterial.opacity = .2;
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floorMaterial.transparent = true;
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const floor = new THREE.Mesh( new THREE.BoxGeometry( 50, .001, 50 ), floorMaterial );
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floor.receiveShadow = true;
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floor.position.set( 0, 0, 0 );
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scene.add( floor );
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//
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function getSource( sourceModel ) {
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const clip = sourceModel.animations[ 0 ];
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const helper = new THREE.SkeletonHelper( sourceModel );
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const skeleton = new THREE.Skeleton( helper.bones );
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const mixer = new THREE.AnimationMixer( sourceModel );
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mixer.clipAction( sourceModel.animations[ 0 ] ).play();
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return { clip, skeleton, mixer };
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}
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function retargetModel( sourceModel, targetModel ) {
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const targetSkin = targetModel.scene.children[ 0 ].children[ 1 ];
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const retargetOptions = {
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// specify the name of the source's hip bone.
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hip: 'mixamorigHips',
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// preserve the scale of the target model
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scale: .01,
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// use ( 0, 1, 0 ) to ignore xz hip movement.
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//hipInfluence: new THREE.Vector3( 0, 1, 0 ),
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// Map of target's bone names to source's bone names -> { targetBoneName: sourceBoneName }
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getBoneName: function ( bone ) {
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return 'mixamorig' + bone.name;
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}
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};
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const retargetedClip = SkeletonUtils.retargetClip( targetSkin, sourceModel.skeleton, sourceModel.clip, retargetOptions );
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const mixer = new THREE.AnimationMixer( targetSkin );
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mixer.clipAction( retargetedClip ).play();
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return mixer;
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}
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window.onresize = function () {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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};
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function animate() {
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const delta = clock.getDelta();
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source.mixer.update( delta );
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mixer.update( delta );
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controls.update();
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stats.update();
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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