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webgl_shading_physical.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - physically based shading</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;
font-weight: bold;
background-color: #000;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
width: 100%;
text-align: center;
padding: 5px;
}
a { color: skyblue; }
</style>
</head>
<body>
<div id="info">
<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl physically based shading testbed
</div>
<script src="../build/three.js"></script>
<script src="js/controls/TrackballControls.js"></script>
<script src="js/loaders/GLTFLoader.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>
var container, stats;
var camera, scene, renderer;
var mesh;
var controls;
var cubeCamera;
var sunLight, pointLight, ambientLight;
var mixer;
var clock = new THREE.Clock();
var gui, shadowCameraHelper, shadowConfig = {
shadowCameraVisible: false,
shadowCameraNear: 750,
shadowCameraFar: 4000,
shadowCameraFov: 30,
shadowBias: - 0.0002
};
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
// CAMERA
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 2, 10000 );
camera.position.set( 500, 400, 1200 );
// SCENE
scene = new THREE.Scene();
scene.fog = new THREE.Fog( 0, 1000, 10000 );
// CUBE CAMERA
cubeCamera = new THREE.CubeCamera( 1, 10000, 128 );
// TEXTURES
var textureLoader = new THREE.TextureLoader();
var textureSquares = textureLoader.load( "textures/patterns/bright_squares256.png" );
textureSquares.repeat.set( 50, 50 );
textureSquares.wrapS = textureSquares.wrapT = THREE.RepeatWrapping;
textureSquares.magFilter = THREE.NearestFilter;
textureSquares.format = THREE.RGBFormat;
var textureNoiseColor = textureLoader.load( "textures/disturb.jpg" );
textureNoiseColor.repeat.set( 1, 1 );
textureNoiseColor.wrapS = textureNoiseColor.wrapT = THREE.RepeatWrapping;
textureNoiseColor.format = THREE.RGBFormat;
var textureLava = textureLoader.load( "textures/lava/lavatile.jpg" );
textureLava.repeat.set( 6, 2 );
textureLava.wrapS = textureLava.wrapT = THREE.RepeatWrapping;
textureLava.format = THREE.RGBFormat;
// GROUND
var groundMaterial = new THREE.MeshPhongMaterial( {
shininess: 80,
color: 0xffffff,
specular: 0xffffff,
map: textureSquares
} );
var planeGeometry = new THREE.PlaneBufferGeometry( 100, 100 );
var ground = new THREE.Mesh( planeGeometry, groundMaterial );
ground.position.set( 0, 0, 0 );
ground.rotation.x = - Math.PI / 2;
ground.scale.set( 1000, 1000, 1000 );
ground.receiveShadow = true;
scene.add( ground );
// MATERIALS
var materialLambert = new THREE.MeshPhongMaterial( { shininess: 50, color: 0xffffff, map: textureNoiseColor } );
var materialPhong = new THREE.MeshPhongMaterial( { shininess: 50, color: 0xffffff, specular: 0x999999, map: textureLava } );
var materialPhongCube = new THREE.MeshPhongMaterial( { shininess: 50, color: 0xffffff, specular: 0x999999, envMap: cubeCamera.renderTarget.texture } );
// OBJECTS
var sphereGeometry = new THREE.SphereBufferGeometry( 100, 64, 32 );
var torusGeometry = new THREE.TorusBufferGeometry( 240, 60, 32, 64 );
var cubeGeometry = new THREE.BoxBufferGeometry( 150, 150, 150 );
addObject( torusGeometry, materialPhong, 0, 100, 0, 0 );
addObject( cubeGeometry, materialLambert, 350, 75, 300, 0 );
mesh = addObject( sphereGeometry, materialPhongCube, 350, 100, - 350, 0 );
mesh.add( cubeCamera );
function addObjectColor( geometry, color, x, y, z, ry ) {
var material = new THREE.MeshPhongMaterial( { color: 0xffffff } );
return addObject( geometry, material, x, y, z, ry );
}
function addObject( geometry, material, x, y, z, ry ) {
var tmpMesh = new THREE.Mesh( geometry, material );
tmpMesh.material.color.offsetHSL( 0.1, - 0.1, 0 );
tmpMesh.position.set( x, y, z );
tmpMesh.rotation.y = ry;
tmpMesh.castShadow = true;
tmpMesh.receiveShadow = true;
scene.add( tmpMesh );
return tmpMesh;
}
var bigCube = new THREE.BoxBufferGeometry( 50, 500, 50 );
var midCube = new THREE.BoxBufferGeometry( 50, 200, 50 );
var smallCube = new THREE.BoxBufferGeometry( 100, 100, 100 );
addObjectColor( bigCube, 0xff0000, - 500, 250, 0, 0 );
addObjectColor( smallCube, 0xff0000, - 500, 50, - 150, 0 );
addObjectColor( midCube, 0x00ff00, 500, 100, 0, 0 );
addObjectColor( smallCube, 0x00ff00, 500, 50, - 150, 0 );
addObjectColor( midCube, 0x0000ff, 0, 100, - 500, 0 );
addObjectColor( smallCube, 0x0000ff, - 150, 50, - 500, 0 );
addObjectColor( midCube, 0xff00ff, 0, 100, 500, 0 );
addObjectColor( smallCube, 0xff00ff, - 150, 50, 500, 0 );
addObjectColor( new THREE.BoxBufferGeometry( 500, 10, 10 ), 0xffff00, 0, 600, 0, Math.PI / 4 );
addObjectColor( new THREE.BoxBufferGeometry( 250, 10, 10 ), 0xffff00, 0, 600, 0, 0 );
addObjectColor( new THREE.SphereBufferGeometry( 100, 32, 26 ), 0xffffff, - 300, 100, 300, 0 );
// MORPHS
var loader = new THREE.GLTFLoader();
loader.load( "models/gltf/SittingBox.glb", function ( gltf ) {
var mesh = gltf.scene.children[ 0 ];
mixer = new THREE.AnimationMixer( mesh );
mixer.clipAction( gltf.animations[ 0 ] ).setDuration( 10 ).play();
var s = 200;
mesh.scale.set( s, s, s );
//morph.duration = 8000;
//morph.mirroredLoop = true;
mesh.castShadow = true;
mesh.receiveShadow = true;
scene.add( mesh );
} );
// LIGHTS
ambientLight = new THREE.AmbientLight( 0x3f2806 );
scene.add( ambientLight );
pointLight = new THREE.PointLight( 0xffaa00, 1, 5000 );
scene.add( pointLight );
sunLight = new THREE.SpotLight( 0xffffff, 0.3, 0, Math.PI / 2 );
sunLight.position.set( 1000, 2000, 1000 );
sunLight.castShadow = true;
sunLight.shadow = new THREE.LightShadow( new THREE.PerspectiveCamera( shadowConfig.shadowCameraFov, 1, shadowConfig.shadowCameraNear, shadowConfig.shadowCameraFar ) );
sunLight.shadow.bias = shadowConfig.shadowBias;
scene.add( sunLight );
// SHADOW CAMERA HELPER
shadowCameraHelper = new THREE.CameraHelper( sunLight.shadow.camera );
shadowCameraHelper.visible = shadowConfig.shadowCameraVisible;
scene.add( shadowCameraHelper );
// RENDERER
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.type = THREE.PCFSoftShadowMap;
//
renderer.gammaInput = true;
renderer.gammaOutput = true;
//
controls = new THREE.TrackballControls( camera, renderer.domElement );
controls.target.set( 0, 120, 0 );
controls.rotateSpeed = 1.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;
controls.noZoom = false;
controls.noPan = false;
controls.staticMoving = true;
controls.dynamicDampingFactor = 0.15;
controls.keys = [ 65, 83, 68 ];
// STATS
stats = new Stats();
container.appendChild( stats.dom );
// EVENTS
window.addEventListener( 'resize', onWindowResize, false );
// GUI
gui = new dat.GUI( { width: 400 } );
// SHADOW
var shadowGUI = gui.addFolder( "Shadow" );
shadowGUI.add( shadowConfig, 'shadowCameraVisible' ).onChange( function () {
shadowCameraHelper.visible = shadowConfig.shadowCameraVisible;
} );
shadowGUI.add( shadowConfig, 'shadowCameraNear', 1, 1500 ).onChange( function () {
sunLight.shadow.camera.near = shadowConfig.shadowCameraNear;
sunLight.shadow.camera.updateProjectionMatrix();
shadowCameraHelper.update();
} );
shadowGUI.add( shadowConfig, 'shadowCameraFar', 1501, 5000 ).onChange( function () {
sunLight.shadow.camera.far = shadowConfig.shadowCameraFar;
sunLight.shadow.camera.updateProjectionMatrix();
shadowCameraHelper.update();
} );
shadowGUI.add( shadowConfig, 'shadowCameraFov', 1, 120 ).onChange( function () {
sunLight.shadow.camera.fov = shadowConfig.shadowCameraFov;
sunLight.shadow.camera.updateProjectionMatrix();
shadowCameraHelper.update();
} );
shadowGUI.add( shadowConfig, 'shadowBias', - 0.01, 0.01 ).onChange( function () {
sunLight.shadow.bias = shadowConfig.shadowBias;
} );
shadowGUI.open();
}
//
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
controls.handleResize();
}
//
function animate() {
requestAnimationFrame( animate );
stats.begin();
render();
stats.end();
}
function render() {
// update
var delta = clock.getDelta();
controls.update();
if ( mixer ) {
mixer.update( delta );
}
// render cube map
mesh.visible = false;
cubeCamera.update( renderer, scene );
mesh.visible = true;
// render scene
renderer.render( scene, camera );
}
</script>
</body>
</html>