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webgl_materials_translucency.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - Fast subsurface scattering in Blinn-Phong shading demo</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: #fff;
font-family: Monospace;
font-size: 13px;
text-align: center;
background-color: #000;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">three.js</a>
<br/>Fast subsurface scattering in Blinn-Phong shading demo<br/>
[Thanks for the art support from <a href="https://github.com/shaochun" target="_blank" rel="noopener">Shaochun Lin</a>]
</div>
<script src="../build/three.js"></script>
<script src="js/controls/OrbitControls.js"></script>
<script src="js/WebGL.js"></script>
<script src="js/libs/stats.min.js"></script>
<script src="js/libs/dat.gui.min.js"></script>
<script src="js/loaders/FBXLoader.js"></script>
<script src="js/ShaderTranslucent.js"></script>
<script>
if ( WEBGL.isWebGLAvailable() === false ) {
document.body.appendChild( WEBGL.getWebGLErrorMessage() );
}
var container, stats;
var camera, scene, renderer;
var model;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 5000 );
camera.position.set( 0.0, 300, 400 * 4 );
scene = new THREE.Scene();
// Lights
scene.add( new THREE.AmbientLight( 0x888888 ) );
var directionalLight = new THREE.DirectionalLight( 0xffffff, 0.03 );
directionalLight.position.set( 0.0, 0.5, 0.5 ).normalize();
scene.add( directionalLight );
var pointLight1 = new THREE.Mesh( new THREE.SphereBufferGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0x888888 } ) );
pointLight1.add( new THREE.PointLight( 0x888888, 7.0, 300 ) );
scene.add( pointLight1 );
pointLight1.position.x = 0;
pointLight1.position.y = - 50;
pointLight1.position.z = 350;
var pointLight2 = new THREE.Mesh( new THREE.SphereBufferGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0x888800 } ) );
pointLight2.add( new THREE.PointLight( 0x888800, 1.0, 500 ) );
scene.add( pointLight2 );
pointLight2.position.x = - 100;
pointLight2.position.y = 20;
pointLight2.position.z = - 260;
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
renderer.gammaInput = true;
renderer.gammaOutput = true;
//
stats = new Stats();
container.appendChild( stats.dom );
var controls = new THREE.OrbitControls( camera, container );
window.addEventListener( 'resize', onWindowResize, false );
initMaterial();
}
function initMaterial() {
var loader = new THREE.TextureLoader();
var imgTexture = loader.load( 'models/fbx/white.jpg' );
var thicknessTexture = loader.load( 'models/fbx/bunny_thickness.jpg' );
imgTexture.wrapS = imgTexture.wrapT = THREE.RepeatWrapping;
var shader = new THREE.TranslucentShader();
var uniforms = THREE.UniformsUtils.clone( shader.uniforms );
uniforms[ 'map' ].value = imgTexture;
uniforms[ 'diffuse' ].value = new THREE.Vector3( 1.0, 0.2, 0.2 );
uniforms[ 'shininess' ].value = 500;
uniforms[ 'thicknessMap' ].value = thicknessTexture;
uniforms[ 'thicknessColor' ].value = new THREE.Vector3( 0.5, 0.3, 0.0 );
uniforms[ 'thicknessDistortion' ].value = 0.1;
uniforms[ 'thicknessAmbient' ].value = 0.4;
uniforms[ 'thicknessAttenuation' ].value = 0.8;
uniforms[ 'thicknessPower' ].value = 2.0;
uniforms[ 'thicknessScale' ].value = 16.0;
var material = new THREE.ShaderMaterial( {
uniforms: uniforms,
vertexShader: shader.vertexShader,
fragmentShader: shader.fragmentShader,
lights: true
} );
material.extensions.derivatives = true;
// LOADER
var loader = new THREE.FBXLoader();
loader.load( 'models/fbx/stanford-bunny.fbx', function ( object ) {
model = object.children[ 0 ];
model.position.set( 0, 0, 10 );
model.scale.setScalar( 1 );
model.material = material;
scene.add( model );
} );
initGUI( uniforms );
}
function initGUI( uniforms ) {
var gui = new dat.GUI();
var ThicknessControls = function () {
this.distoration = uniforms[ 'thicknessDistortion' ].value;
this.ambient = uniforms[ 'thicknessAmbient' ].value;
this.attenuation = uniforms[ 'thicknessAttenuation' ].value;
this.power = uniforms[ 'thicknessPower' ].value;
this.scale = uniforms[ 'thicknessScale' ].value;
};
var thicknessControls = new ThicknessControls();
var thicknessFolder = gui.addFolder( 'Thickness Control' );
thicknessFolder.add( thicknessControls, 'distoration' ).min( 0.01 ).max( 1 ).step( 0.01 ).onChange( function () {
uniforms[ 'thicknessDistortion' ].value = thicknessControls.distoration;
} );
thicknessFolder.add( thicknessControls, 'ambient' ).min( 0.01 ).max( 5.0 ).step( 0.05 ).onChange( function () {
uniforms[ 'thicknessAmbient' ].value = thicknessControls.ambient;
} );
thicknessFolder.add( thicknessControls, 'attenuation' ).min( 0.01 ).max( 5.0 ).step( 0.05 ).onChange( function () {
uniforms[ 'thicknessAttenuation' ].value = thicknessControls.attenuation;
} );
thicknessFolder.add( thicknessControls, 'power' ).min( 0.01 ).max( 16.0 ).step( 0.1 ).onChange( function () {
uniforms[ 'thicknessPower' ].value = thicknessControls.power;
} );
thicknessFolder.add( thicknessControls, 'scale' ).min( 0.01 ).max( 50.0 ).step( 0.1 ).onChange( function () {
uniforms[ 'thicknessScale' ].value = thicknessControls.scale;
} );
thicknessFolder.open();
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
if ( model ) model.rotation.y = performance.now() / 5000;
renderer.render( scene, camera );
}
</script>
</body>
</html>