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276 lines
6.4 KiB
276 lines
6.4 KiB
2 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - skinning and morphing</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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<style>
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body {
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color: #222;
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}
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a {
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color: #2fa1d6;
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}
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p {
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max-width: 600px;
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margin-left: auto;
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margin-right: auto;
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padding: 0 2em;
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}
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</style>
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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> webgl - skinning and morphing<br />
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<p>
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The animation system allows clips to be played individually, looped, or crossfaded with other clips. This example shows a character looping in one of several base animation states, then transitioning smoothly to one-time actions. Facial expressions are controlled independently with morph targets.
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</p>
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Model by
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<a href="https://www.patreon.com/quaternius" target="_blank" rel="noopener">Tomás Laulhé</a>,
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modifications by <a href="https://donmccurdy.com/" target="_blank" rel="noopener">Don McCurdy</a>. CC0.<br />
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</div>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.module.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 Stats from 'three/addons/libs/stats.module.js';
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import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
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let container, stats, clock, gui, mixer, actions, activeAction, previousAction;
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let camera, scene, renderer, model, face;
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const api = { state: 'Walking' };
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init();
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animate();
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.25, 100 );
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camera.position.set( - 5, 3, 10 );
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camera.lookAt( 0, 2, 0 );
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scene = new THREE.Scene();
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scene.background = new THREE.Color( 0xe0e0e0 );
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scene.fog = new THREE.Fog( 0xe0e0e0, 20, 100 );
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clock = new THREE.Clock();
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// lights
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const hemiLight = new THREE.HemisphereLight( 0xffffff, 0x444444 );
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hemiLight.position.set( 0, 20, 0 );
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scene.add( hemiLight );
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const dirLight = new THREE.DirectionalLight( 0xffffff );
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dirLight.position.set( 0, 20, 10 );
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scene.add( dirLight );
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// ground
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const mesh = new THREE.Mesh( new THREE.PlaneGeometry( 2000, 2000 ), new THREE.MeshPhongMaterial( { color: 0x999999, depthWrite: false } ) );
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mesh.rotation.x = - Math.PI / 2;
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scene.add( mesh );
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const grid = new THREE.GridHelper( 200, 40, 0x000000, 0x000000 );
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grid.material.opacity = 0.2;
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grid.material.transparent = true;
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scene.add( grid );
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// model
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const loader = new GLTFLoader();
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loader.load( 'models/gltf/RobotExpressive/RobotExpressive.glb', function ( gltf ) {
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model = gltf.scene;
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scene.add( model );
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createGUI( model, gltf.animations );
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}, undefined, function ( e ) {
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console.error( e );
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} );
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.outputEncoding = THREE.sRGBEncoding;
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container.appendChild( renderer.domElement );
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window.addEventListener( 'resize', onWindowResize );
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// stats
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stats = new Stats();
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container.appendChild( stats.dom );
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}
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function createGUI( model, animations ) {
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const states = [ 'Idle', 'Walking', 'Running', 'Dance', 'Death', 'Sitting', 'Standing' ];
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const emotes = [ 'Jump', 'Yes', 'No', 'Wave', 'Punch', 'ThumbsUp' ];
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gui = new GUI();
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mixer = new THREE.AnimationMixer( model );
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actions = {};
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for ( let i = 0; i < animations.length; i ++ ) {
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const clip = animations[ i ];
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const action = mixer.clipAction( clip );
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actions[ clip.name ] = action;
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if ( emotes.indexOf( clip.name ) >= 0 || states.indexOf( clip.name ) >= 4 ) {
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action.clampWhenFinished = true;
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action.loop = THREE.LoopOnce;
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}
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}
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// states
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const statesFolder = gui.addFolder( 'States' );
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const clipCtrl = statesFolder.add( api, 'state' ).options( states );
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clipCtrl.onChange( function () {
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fadeToAction( api.state, 0.5 );
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} );
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statesFolder.open();
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// emotes
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const emoteFolder = gui.addFolder( 'Emotes' );
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function createEmoteCallback( name ) {
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api[ name ] = function () {
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fadeToAction( name, 0.2 );
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mixer.addEventListener( 'finished', restoreState );
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};
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emoteFolder.add( api, name );
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}
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function restoreState() {
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mixer.removeEventListener( 'finished', restoreState );
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fadeToAction( api.state, 0.2 );
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}
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for ( let i = 0; i < emotes.length; i ++ ) {
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createEmoteCallback( emotes[ i ] );
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}
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emoteFolder.open();
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// expressions
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face = model.getObjectByName( 'Head_4' );
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const expressions = Object.keys( face.morphTargetDictionary );
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const expressionFolder = gui.addFolder( 'Expressions' );
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for ( let i = 0; i < expressions.length; i ++ ) {
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expressionFolder.add( face.morphTargetInfluences, i, 0, 1, 0.01 ).name( expressions[ i ] );
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}
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activeAction = actions[ 'Walking' ];
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activeAction.play();
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expressionFolder.open();
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}
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function fadeToAction( name, duration ) {
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previousAction = activeAction;
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activeAction = actions[ name ];
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if ( previousAction !== activeAction ) {
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previousAction.fadeOut( duration );
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}
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activeAction
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.reset()
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.setEffectiveTimeScale( 1 )
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.setEffectiveWeight( 1 )
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.fadeIn( duration )
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.play();
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}
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function onWindowResize() {
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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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//
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function animate() {
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const dt = clock.getDelta();
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if ( mixer ) mixer.update( dt );
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requestAnimationFrame( animate );
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renderer.render( scene, camera );
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stats.update();
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}
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</script>
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</body>
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</html>
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