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test-blending.html
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test-blending.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - animation - skinning</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
color: #000;
font-family:Monospace;
font-size:13px;
text-align:center;
background-color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info" style="display:'';">
<b>Three.js - Skeletal Animation Blending </b><br>
<p>The 3 models in the top row each show a single animation.<br>
The model below shows the combined results of blending each selected animation.
</p>
</div>
<script src="js/Three.js"></script>
<script src="js/Animation.js"></script>
<script src="js/AnimationHandler.js"></script>
<script src="js/RotationControls.js"></script>
<script src="js/Detector.js"></script>
<script src="js/dat.gui.min.js"></script>
<script src="js/BlendCharacter.js"></script>
<script src="js/BlendCharacterGui.js"></script>
<script src="js/AnimationGui.js"></script>
<script src="js/SkeletonHelper.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
window.onload = init;
var container;
var camera, scene, renderer, controls;
var light, lightOffset;
var blendMesh = null;
var referenceMeshList = [];
var clock = new THREE.Clock();
var gui = null;
var isFrameStepping = false;
var timeToStep = 0;
// -----------------------------------------------------------------------
function init() {
container = document.getElementById( 'container' );
boneScene = new THREE.Scene();
scene = new THREE.Scene();
scene.fog = new THREE.Fog( 0xB0CAE1, 1000.0, 12000.0 );
scene.add ( new THREE.AmbientLight( 0xaaaaaa ) );
lightOffset = new THREE.Vector3( 0, 0, 1000.0 );
light = new THREE.DirectionalLight( 0xffffff, 1.5 );
light.position.copy( lightOffset );
scene.add( light );
renderer = new THREE.WebGLRenderer( { antialias: true, alpha: false } );
renderer.setClearColor( '#777777', 1 );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.autoClear = false;
container.appendChild( renderer.domElement );
window.addEventListener( 'resize', onWindowResize, false );
window.addEventListener( 'start-animation', onStartAnimation );
window.addEventListener( 'stop-animation', onStopAnimation );
window.addEventListener( 'pause-animation', onPauseAnimation );
window.addEventListener( 'weight-animation', onWeightAnimation );
window.addEventListener( 'step-animation', onStepAnimation );
window.addEventListener( 'crossfade', onCrossfade );
window.addEventListener( 'warp', onWarp );
window.addEventListener( 'toggle-show-model', onShowModelToggle );
window.addEventListener( 'toggle-show-skeleton', onShowSkeletonToggle );
window.addEventListener( 'toggle-lock-camera', onLockCameraToggle );
loadSkeletalMeshes();
}
// -----------------------------------------------------------------------
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
// -----------------------------------------------------------------------
function onStartAnimation(event) {
var data = event.detail;
// Reference meshes each play their own single animation
for ( var i = 0; i < data.anims.length; ++i ) {
referenceMeshList[i].stopAll();
referenceMeshList[i].play(data.anims[i]);
}
blendMesh.stopAll();
// the blend mesh will combine 1 or more animations
for ( var i = 0; i < data.anims.length; ++i ) {
blendMesh.play(data.anims[i], data.weights[i]);
}
isFrameStepping = false;
}
// -----------------------------------------------------------------------
function onCrossfade( event ) {
var data = event.detail;
// Reference meshes each play their own single animation
for ( var i = 0; i < data.anims.length; ++i ) {
referenceMeshList[i].stopAll();
referenceMeshList[i].play( data.anims[ i ] );
}
blendMesh.stopAll();
blendMesh.crossfade( data.from, data.to, data.time );
isFrameStepping = false;
}
// -----------------------------------------------------------------------
function onWarp( event ) {
var data = event.detail;
// Reference meshes each play their own single animation
for ( var i = 0; i < data.anims.length; ++i ) {
referenceMeshList[i].stopAll();
referenceMeshList[i].play( data.anims[ i ] );
}
blendMesh.stopAll();
blendMesh.warp( data.from, data.to, data.time );
isFrameStepping = false;
}
// -----------------------------------------------------------------------
function onStopAnimation( event ) {
for ( var i = 0; i < referenceMeshList.length; ++i ) {
referenceMeshList[i].stopAll();
}
blendMesh.stopAll();
isFrameStepping = false;
}
// -----------------------------------------------------------------------
function onPauseAnimation(event) {
var pauseFunc = ( isFrameStepping ) ? blendMesh.unPauseAll: blendMesh.pauseAll;
for ( var i = 0; i < referenceMeshList.length; ++i ) {
pauseFunc.call(referenceMeshList[i]);
}
pauseFunc.call(blendMesh);
isFrameStepping = false;
}
// -----------------------------------------------------------------------
function onStepAnimation(event) {
for ( var i = 0; i < referenceMeshList.length; ++i ) {
referenceMeshList[i].unPauseAll();
}
blendMesh.unPauseAll();
isFrameStepping = true;
timeToStep = event.detail.stepSize;
}
// -----------------------------------------------------------------------
function onWeightAnimation(event) {
var data = event.detail;
for ( var i = 0; i < data.anims.length; ++i ) {
blendMesh.applyWeight( data.anims[i], data.weights[i] );
}
}
// -----------------------------------------------------------------------
function onShowSkeletonToggle( event ) {
var shouldShow = event.detail.shouldShow;
for ( var i = 0; i < referenceMeshList.length; ++i ) {
referenceMeshList[i].showSkeleton( shouldShow );
}
blendMesh.showSkeleton( shouldShow );
}
// -----------------------------------------------------------------------
function onShowModelToggle( event ) {
var shouldShow = event.detail.shouldShow;
for ( var i = 0; i < referenceMeshList.length; ++i ) {
referenceMeshList[i].showModel( shouldShow );
}
blendMesh.showModel( shouldShow );
}
// -----------------------------------------------------------------------
function onLockCameraToggle( event ) {
var shouldLock = event.detail.shouldLock;
controls.enabled = !shouldLock;
}
// -----------------------------------------------------------------------
function loadSkeletalMeshes() {
var meshesToCreate = 3;
var meshesLoaded = 0;
for ( var i = 0; i < meshesToCreate; ++i ) {
referenceMeshList.push( new THREE.BlendCharacter() );
referenceMeshList[ i ].load( "models/marine/marine.js", onMeshLoaded );
}
blendMesh = new THREE.BlendCharacter();
blendMesh.load( "models/marine/marine.js", onMeshLoaded );
function onMeshLoaded() {
if ( ++meshesLoaded === meshesToCreate + 1) {
buildScene();
}
}
}
// -----------------------------------------------------------------
function buildScene() {
var spacing = referenceMeshList[0].geometry.boundingSphere.radius * 1.5;
var startX = -((referenceMeshList.length - 1) / 2) * spacing;
for (var i = 0; i < referenceMeshList.length; ++i ) {
referenceMeshList[i].position.x = startX + i * spacing;
referenceMeshList[i].position.y = spacing;
referenceMeshList[i].rotation.y = Math.PI * -90 / 180;
scene.add(referenceMeshList[i]);
}
blendMesh.position.y = -spacing / 2;
blendMesh.rotation.y = Math.PI * -90 / 180;
scene.add( blendMesh );
var aspect = window.innerWidth / window.innerHeight;
var minDim = spacing * 2;
camera = new THREE.OrthographicCamera( -minDim * aspect, minDim * aspect, minDim, -minDim, 1, 10000 );
camera.position.set(0.0, spacing, 1000);
controls = new THREE.RotationControls( blendMesh );
gui = new BlendCharacterGui( blendMesh.animations );
new AnimationGui( blendMesh.animations );
update();
}
// -----------------------------------------------------------------------
function update() {
requestAnimationFrame( update, renderer.domElement );
var scale = gui.getTimeScale();
var delta = clock.getDelta();
var stepSize = ( !isFrameStepping ) ? delta * scale: timeToStep;
blendMesh.update( stepSize );
gui.update();
THREE.AnimationHandler.update( stepSize );
// Make the reference model's orientation match the blended one below
for (var i = 0; i < referenceMeshList.length; ++i ) {
referenceMeshList[i].rotation.x = blendMesh.rotation.x;
referenceMeshList[i].rotation.y = blendMesh.rotation.y;
referenceMeshList[i].update();
}
timeToStep = 0;
renderer.clear();
renderer.render( scene, camera );
}
</script>
</body>
</html>