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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 - buffergeometry - morph targets</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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+ <style>
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+ body {
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+ margin: 0px;
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+ overflow: hidden;
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+ text-align: center;
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+ }
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+
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+ #info {
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+ color: #fff;
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+ position: absolute;
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+ top: 10px;
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+ width: 100%;
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+ }
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+
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+ </style>
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+ </head>
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+
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+ <body>
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+ <div id="container"></div>
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+ <div id="info">
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+ <a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - buffergeometry - morph targets
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+ </div>
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+
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+ <script src="../build/three.js"></script>
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+
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+ <script src="js/controls/OrbitControls.js"></script>
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+ <script src="js/WebGL.js"></script>
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+ <script src="js/libs/dat.gui.min.js"></script>
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+
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+ <script>
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+
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+ var container, camera, scene, renderer, mesh;
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+
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+ function init() {
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+
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+ if ( WEBGL.isWebGLAvailable() === false ) {
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+
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+ document.body.appendChild( WEBGL.getWebGLErrorMessage() );
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+ return false;
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+
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+ }
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+
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+ container = document.getElementById( 'container' );
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+ camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 20 );
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+ camera.position.z = 10;
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+
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+ var controls = new THREE.OrbitControls( camera, container );
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+
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+ scene = new THREE.Scene();
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+ scene.background = new THREE.Color( 0x8FBCD4 );
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+ var pointLight = new THREE.PointLight( 0xffffff, 1 );
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+ camera.add( pointLight );
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+ scene.add( camera );
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+
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+ var geometry = createGeometry();
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+
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+ var material = new THREE.MeshPhongMaterial( { flatShading: true, color: 0xff0000, morphTargets: true } );
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+
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+ mesh = new THREE.Mesh( geometry, material );
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+ scene.add( mesh );
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+
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+ initGUI();
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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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+
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+ renderer.setAnimationLoop( function () {
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+
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+ renderer.render( scene, camera );
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+
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+ } );
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+
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+ container.appendChild( renderer.domElement );
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+
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+
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+ window.addEventListener( 'resize', onWindowResize, false );
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+
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+ }
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+
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+ function createGeometry() {
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+
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+ var geometry = new THREE.BufferGeometry();
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+
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+ // 2 x 2 cube centered at (0, 0, 0) defined by 8 corner vertices
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+ var positions = [
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+ - 1, - 1, 1, // front bottom left
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+ 1, - 1, 1, // front bottom right
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+ - 1, 1, 1, // front top left
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+ 1, 1, 1, // front top right
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+ - 1, - 1, - 1, // back bottom left
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+ 1, - 1, - 1, // back bottom right
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+ - 1, 1, - 1, // back top left
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+ 1, 1, - 1, // back top right
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+ ];
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+ geometry.addAttribute( 'position', new THREE.Float32BufferAttribute( positions, 3 ) );
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+
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+ // each face consists of two triangles
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+ var indices = [
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+ 2, 0, 1, 1, 3, 2, // front
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+ 4, 6, 5, 6, 7, 5, // back
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+ 2, 3, 6, 3, 7, 6, // top
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+ 0, 4, 5, 5, 1, 0, // bottom
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+ 0, 6, 4, 6, 0, 2, // left
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+ 1, 5, 3, 3, 5, 7 // right
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+ ];
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+ geometry.setIndex( indices );
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+
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+ // create an empty array to hold targets for the attribute we want to morph
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+ // morphing positions and normals is supported
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+ geometry.morphAttributes.position = [];
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+
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+ // squash
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+ var morphTargetPositions0 = [
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+ - 1.25, - 1, 1.25,
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+ 1.25, - 1, 1.25,
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+ - 1.25, 0.5, 1.25,
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+ 1.25, 0.5, 1.25,
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+ - 1.25, - 1, - 1.25,
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+ 1.25, - 1, - 1.25,
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+ - 1.25, 0.5, - 1.25,
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+ 1.25, 0.5, - 1.25,
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+ ];
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+ geometry.morphAttributes.position[ 0 ] = new THREE.Float32BufferAttribute( morphTargetPositions0, 3 );
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+
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+ // lean
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+ var morphTargetPositions1 = [
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+ - 1, - 1, 1,
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+ 1, - 1, 1,
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+ - 1.5, 1, 1,
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+ 0.5, 1, 1,
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+ - 1, - 1, - 1,
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+ 1, - 1, - 1,
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+ - 1.5, 1, - 1,
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+ 0.5, 1, - 1,
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+ ];
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+ geometry.morphAttributes.position[ 1 ] = new THREE.Float32BufferAttribute( morphTargetPositions1, 3 );
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+
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+ return geometry;
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+
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+ }
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+
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+ function initGUI() {
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+
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+ // Set up dat.GUI to control targets
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+ var params = {
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+ squash: 0,
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+ lean: 0,
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+ };
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+ var gui = new dat.GUI();
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+ var folder = gui.addFolder( 'Morph Targets' );
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+
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+ folder.add( params, 'squash', 0, 1 ).step( 0.01 ).onChange( function ( value ) {
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+
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+ mesh.morphTargetInfluences[ 0 ] = value;
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+
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+ } );
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+ folder.add( params, 'lean', 0, 1 ).step( 0.01 ).onChange( function ( value ) {
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+
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+ mesh.morphTargetInfluences[ 1 ] = value;
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+
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+ } );
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+
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+ folder.open();
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+
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+ }
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+
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+ function onWindowResize() {
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+
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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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+
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+ init();
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+ </script>
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+
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+ </body>
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+</html>
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Lewy Blue