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+<!doctype html>
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+<html lang="en">
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+ <head>
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+ <meta charset="utf-8">
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+ <title>Three.js Bones Browser</title>
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+ <style>
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+ @font-face {
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+ font-family: 'inconsolata';
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+ src: url('../files/inconsolata.woff') format('woff');
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+ font-weight: normal;
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+ font-style: normal;
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+ }
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+
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+ body {
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+ margin:0;
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+ font-family: 'inconsolata';
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+ font-size: 15px;
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+ line-height: 18px;
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+ overflow: hidden;
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+ }
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+
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+ canvas { width: 100%; height: 100% }
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+
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+ #newWindow {
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+ display: block;
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+ position: absolute;
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+ bottom: 0.3em;
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+ left: 0.5em;
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+ color: #fff;
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+ }
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+ </style>
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+ </head>
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+ <body>
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+
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+ <a id='newWindow' href='./bones-browser.html' target='_blank'>Open in New Window</a>
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+
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+ <script src="../../build/three.min.js"></script>
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+ <script src='../../examples/js/libs/dat.gui.min.js'></script>
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+ <script src="../../examples/js/controls/OrbitControls.js"></script>
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+
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+ <script>
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+
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+ var gui, scene, camera, renderer, orbit, ambientLight, lights, mesh, bones, skeletonHelper;
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+
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+ var state = {
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+ animateBones : false
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+ };
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+
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+ function initScene () {
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+
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+ gui = new dat.GUI();
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+ scene = new THREE.Scene();
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+ camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 200 );
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+ camera.position.z = 30;
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+ camera.position.y = 30;
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+
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+ renderer = new THREE.WebGLRenderer({antialias: true});
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ document.body.appendChild( renderer.domElement );
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+
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+ orbit = new THREE.OrbitControls( camera, renderer.domElement );
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+ orbit.noZoom = true;
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+
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+ ambientLight = new THREE.AmbientLight( 0x000000 );
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+ scene.add( ambientLight );
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+
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+ lights = [];
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+ lights[0] = new THREE.PointLight( 0xffffff, 1, 0 );
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+ lights[1] = new THREE.PointLight( 0xffffff, 1, 0 );
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+ lights[2] = new THREE.PointLight( 0xffffff, 1, 0 );
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+
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+ lights[0].position.set( 0, 200, 0 );
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+ lights[1].position.set( 100, 200, 100 );
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+ lights[2].position.set( -100, -200, -100 );
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+
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+ scene.add( lights[0] );
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+ scene.add( lights[1] );
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+ scene.add( lights[2] );
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+
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+ window.addEventListener( 'resize', function () {
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+
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+ camera.aspect = window.innerWidth / window.innerHeight;
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ }, false );
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+
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+ initBones();
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+ setupDatGui();
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+ }
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+
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+ function createGeometry ( sizing ) {
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+
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+ var geometry = new THREE.CylinderGeometry(
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+ 5, // radiusTop
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+ 5, // radiusBottom
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+ sizing.height, // height
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+ 8, // radiusSegments
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+ sizing.segmentCount * 3, // heightSegments
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+ true // openEnded
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+ );
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+
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+ for( var i=0; i < geometry.vertices.length; i++ ) {
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+
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+ var vertex = geometry.vertices[i];
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+ var y = (vertex.y + sizing.halfHeight);
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+
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+ var skinIndex = Math.floor( y / sizing.segmentHeight );
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+ var skinWeight = (y % sizing.segmentHeight) / sizing.segmentHeight;
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+
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+ geometry.skinIndices.push( new THREE.Vector4( skinIndex, skinIndex+1, 0, 0 ) );
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+ geometry.skinWeights.push( new THREE.Vector4( 1-skinWeight, skinWeight, 0, 0 ) );
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+
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+ }
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+
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+ return geometry;
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+ };
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+
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+ function createBones ( sizing ) {
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+
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+ bones = [];
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+
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+ var prevBone = new THREE.Bone();
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+ bones.push( prevBone );
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+ prevBone.position.y = -sizing.halfHeight;
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+
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+ for( var i=0; i < sizing.segmentCount; i++ ) {
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+
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+ var bone = new THREE.Bone();
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+ bone.position.y = sizing.segmentHeight;
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+ bones.push( bone );
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+ prevBone.add( bone );
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+ prevBone = bone;
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+
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+ }
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+
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+ return bones;
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+ };
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+
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+ function createMesh ( geometry, bones ) {
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+
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+ var material = new THREE.MeshPhongMaterial({
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+ skinning : true,
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+ color: 0x156289,
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+ emissive: 0x072534,
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+ side: THREE.DoubleSide,
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+ shading: THREE.FlatShading
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+ });
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+
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+ var mesh = new THREE.SkinnedMesh(
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+ geometry,
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+ material
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+ );
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+
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+ var skeleton = new THREE.Skeleton( bones );
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+
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+ mesh.bind( skeleton );
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+
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+ mesh.add( bones[0] );
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+ mesh.updateMatrixWorld( true );
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+ skeleton.calculateInverses();
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+
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+ skeletonHelper = new THREE.SkeletonHelper( mesh );
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+ skeletonHelper.material.linewidth = 2;
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+ scene.add( skeletonHelper );
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+
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+ return mesh;
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+ };
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+
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+ function setupDatGui () {
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+
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+ var folder = gui.addFolder( "General Options" );
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+
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+ folder.add( state, "animateBones" );
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+ folder.__controllers[0].name("Animate Bones")
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+
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+ folder.add( mesh, "pose" );
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+ folder.__controllers[1].name(".pose()");
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+
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+ var bones = mesh.skeleton.bones;
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+
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+ for( var i=0; i < bones.length; i++ ) {
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+
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+ var bone = bones[i]
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+
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+ folder = gui.addFolder( "Bone " + i );
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+
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+ folder.add( bone.position, 'x', -10 + bone.position.x, 10 + bone.position.x );
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+ folder.add( bone.position, 'y', -10 + bone.position.y, 10 + bone.position.y );
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+ folder.add( bone.position, 'z', -10 + bone.position.z, 10 + bone.position.z );
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+
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+ folder.add( bone.rotation, 'x', -Math.PI * 0.5, Math.PI * 0.5 );
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+ folder.add( bone.rotation, 'y', -Math.PI * 0.5, Math.PI * 0.5 );
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+ folder.add( bone.rotation, 'z', -Math.PI * 0.5, Math.PI * 0.5 );
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+
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+ folder.add( bone.scale, 'x', 0, 2 );
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+ folder.add( bone.scale, 'y', 0, 2 );
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+ folder.add( bone.scale, 'z', 0, 2 );
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+
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+ folder.__controllers[0].name("position.x")
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+ folder.__controllers[1].name("position.y")
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+ folder.__controllers[2].name("position.z")
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+
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+ folder.__controllers[3].name("rotation.x")
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+ folder.__controllers[4].name("rotation.y")
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+ folder.__controllers[5].name("rotation.z")
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+
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+ folder.__controllers[6].name("scale.x")
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+ folder.__controllers[7].name("scale.y")
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+ folder.__controllers[8].name("scale.z")
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+
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+ }
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+
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+ }
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+
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+ function initBones () {
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+
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+ var segmentHeight = 8;
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+ var segmentCount = 4;
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+ var height = segmentHeight * segmentCount
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+ var halfHeight = height * 0.5
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+
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+ var sizing = {
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+ segmentHeight : segmentHeight,
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+ segmentCount : segmentCount,
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+ height : height,
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+ halfHeight : halfHeight
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+ };
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+
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+ var geometry = createGeometry( sizing );
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+ var bones = createBones( sizing );
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+ mesh = createMesh( geometry, bones );
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+
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+ mesh.scale.multiplyScalar( 1 );
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+ scene.add( mesh );
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+
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+ };
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+
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+ function render () {
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+
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+ requestAnimationFrame( render );
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+
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+ var time = Date.now() * 0.001;
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+
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+ var bone = mesh;
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+
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+
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+ //Wiggle the bones
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+ if( state.animateBones ) {
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+
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+ for( var i=0; i < mesh.skeleton.bones.length; i++ ) {
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+
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+ mesh.skeleton.bones[i].rotation.z = Math.sin( time ) * 2 / mesh.skeleton.bones.length;
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+
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+ }
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+
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+ }
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+
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+ skeletonHelper.update();
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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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+ initScene();
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+ render();
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+
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+ </script>
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+ </body>
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+</html>
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Greg Tatum