我在threejs中使用这个例子并加载了一个带有变形目标的人体对象。
但是我在通过 Web 应用程序使用ShaderMaterial. 尽管ShaderMaterial拥有morphTarget财产，morphTarget: true;但无法正常工作。
这是我的代码。
<body>
<div id="info">
</div>
<script src="js/three.js"></script>
<script src="js/ShaderSkin.js"></script>
<script src="js/CopyShader.js"></script>
<script src="js/EffectComposer.js"></script>
<script src="js/RenderPass.js"></script>
<script src="js/ShaderPass.js"></script>
<script src="js/MaskPass.js"></script>
<script src="js/Detector.js"></script>
<script src="js/stats.min.js"></script>
<script src="js/AssimpJSONLoader.js"></script>
<script src="js/dat.gui.min.js"></script>
<script src="js/OrbitControls.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var statsEnabled = true;
var container, stats, loader;
var camera, scene, renderer;
var mesh, mesh2, gui;
var directionalLight;
var mouseX = 0;
var mouseY = 0;
var targetX = 0, targetY = 0;
var character,object;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var mapColor, mapHeight, mapSpecular;
var firstPass = true;
var composer, composerBeckmann;
var controls;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
//
camera = new THREE.PerspectiveCamera( 27, window.innerWidth / window.innerHeight, 1, 10000 );
camera.position.z = 600;
camera.position.y = -20;
scene = new THREE.Scene();
scene.background = new THREE.Color( 0xffffff );
// LIGHTS
scene.add( new THREE.AmbientLight( 0x333344 ) );
directionalLight = new THREE.DirectionalLight( 0xffffff, 1 );
directionalLight.position.set( 500, 0, 500 );
directionalLight.castShadow = true;
directionalLight.shadow.mapSize.width = 2048;
directionalLight.shadow.mapSize.height = 2048;
directionalLight.shadow.camera.near = 200;
directionalLight.shadow.camera.far = 1500;
directionalLight.shadow.camera.left = -500;
directionalLight.shadow.camera.right = 500;
directionalLight.shadow.camera.top = 500;
directionalLight.shadow.camera.bottom = -500;
directionalLight.shadow.bias = -0.005;
scene.add( directionalLight );
//access morph targets
gui = new dat.GUI();
var params = {
Height: 0
};
var folder = gui.addFolder( 'Morph Targets' );
folder.add( params, 'Height', 0.0, 1.0 ).step( 0.01 ).onChange( function( value ) { object.morphTargetInfluences[ 1 ] = value; } );
folder.open();
// load the object
loader = new THREE.JSONLoader();
loader.load( 'leeperrysmith/MorphMan1.json', function ( geometry ) {
object = new THREE.Mesh( geometry );
createScene( geometry , 120)
} );
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
renderer.shadowMap.enabled = true;
renderer.shadowMap.renderReverseSided = false;
renderer.autoClear = false;
//
renderer.gammaInput = true;
renderer.gammaOutput = true;
//
if ( statsEnabled ) {
stats = new Stats();
container.appendChild( stats.dom );
}
// COMPOSER
renderer.autoClear = false;
// BECKMANN
var effectBeckmann = new THREE.ShaderPass( THREE.ShaderSkin[ "beckmann" ] );
var effectCopy = new THREE.ShaderPass( THREE.CopyShader );
effectCopy.renderToScreen = true;
var pars = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat, stencilBuffer: false };
var rtwidth = 512, rtheight = 512;
composerBeckmann = new THREE.EffectComposer( renderer, new THREE.WebGLRenderTarget( rtwidth, rtheight, pars ) );
composerBeckmann.addPass( effectBeckmann );
composerBeckmann.addPass( effectCopy );
// EVENTS
//document.addEventListener( 'mousemove', onDocumentMouseMove, true);
window.addEventListener( 'resize', onWindowResize, true );
controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.addEventListener( 'change', render ); // remove when using animation loop
controls.enableZoom = true;
}
function createScene( geometry, scale ) {
var textureLoader = new THREE.TextureLoader();
// bump Map
var mapHeight = textureLoader.load( "leeperrysmith/3d_skin_texture_bump_map_by_degrahuma_stock.jpg" );
mapHeight.anisotropy = 4;
mapHeight.wrapS = mapHeight.wrapT = THREE.RepeatWrapping;
mapHeight.format = THREE.RGBFormat;
var mapSpecular = textureLoader.load( "leeperrysmith/3d_skin_texture_bump_map_by_degrahuma_stock.jpg" );
mapSpecular.anisotropy = 4;
mapSpecular.wrapS = mapSpecular.wrapT = THREE.RepeatWrapping;
mapSpecular.format = THREE.RGBFormat;
// skin texture
var mapColor = textureLoader.load( "leeperrysmith/middleage_lightskinned_male_diffuse2.png" );
mapColor.anisotropy = 4;
mapColor.wrapS = mapColor.wrapT = THREE.RepeatWrapping;
mapColor.format = THREE.RGBFormat;
var shader = THREE.ShaderSkin[ "skinSimple" ];
var fragmentShader = shader.fragmentShader;
var vertexShader = shader.vertexShader;
var uniforms = THREE.UniformsUtils.clone( shader.uniforms );
uniforms[ "enableBump" ].value = true;
uniforms[ "enableSpecular" ].value = true;
uniforms[ "tBeckmann" ].value = composerBeckmann.renderTarget1.texture;
uniforms[ "tDiffuse" ].value = mapColor;
uniforms[ "bumpMap" ].value = mapHeight;
uniforms[ "specularMap" ].value = mapSpecular;
uniforms[ "diffuse" ].value.setHex( 0xffffff );
uniforms[ "specular" ].value.setHex( 0xffffff );
//uniforms[ "specular" ].value.setHex( 0xa0a0a0 );
uniforms[ "uRoughness" ].value = 0.2;
uniforms[ "uSpecularBrightness" ].value = 1;
// change the bump scale
uniforms[ "bumpScale" ].value = 0.5;
var material = new THREE.ShaderMaterial( {
fragmentShader: fragmentShader,
vertexShader: vertexShader,
uniforms: uniforms,
lights: true,
morphTargets: true,
//morphNormals: true,
} );
material.extensions.derivatives = true;
mesh = new THREE.Mesh( geometry, material);
mesh.position.y = - 50;
mesh.scale.set( scale, scale, scale );
mesh.castShadow = true;
mesh.receiveShadow = true;
scene.add( mesh);//, mesh2 );
}
//
function onWindowResize( event ) {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX ) * 1;
mouseY = ( event.clientY - windowHalfY ) * 1;
}
//
function animate() {
requestAnimationFrame( animate );
controls.update();
render();
if ( statsEnabled ) stats.update();
}
function render() {
targetX = mouseX * .001;
targetY = mouseY * .001;
if ( mesh ) {
mesh.rotation.y += 0.05 * ( targetX - mesh.rotation.y );
mesh.rotation.x += 0.05 * ( targetY - mesh.rotation.x );
}
if ( firstPass ) {
composerBeckmann.render();
firstPass = false;
}
renderer.clear();
renderer.render( scene, camera );
}
</script>
</body>
谁能告诉我如何解决这个问题，或者让我知道在使用时是否有其他方法可以访问 morphTargets ShaderMaterial？