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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <title>threejs webgl - materials - equiangular exr image based lighting</title>
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+ <meta charset="utf-8">
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+ <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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+ <style>
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+ body {
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+ color: #000;
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+ font-family:Monospace;
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+ font-size:13px;
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+ text-align:center;
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+ color: #fff;
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+
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+ background-color: #000;
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+
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+ margin: 0px;
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+ overflow: hidden;
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+ }
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+ a { color: #00f }
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+
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+ #info {
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+ position: absolute;
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+ top: 0px; width: 100%;
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+ padding: 5px;
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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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+ <div id="container"></div>
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+ <div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">threejs</a> - Example of an IBL (Image based lighting) pipeline based around<br> equiangular EXR lightprobe data. Created by <a href="https://github.com/richardmonette" target="_blank" rel="noopener">Richard Monette</a></div>
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+
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+ <script src="../build/three.js"></script>
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+ <script src="js/controls/OrbitControls.js"></script>
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+
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+ <script src="js/loaders/EXRLoader.js"></script>
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+ <script src="js/loaders/EquiangularToCubeGenerator.js"></script>
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+
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+ <script src="js/Detector.js"></script>
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+ <script src="js/libs/stats.min.js"></script>
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+
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+ <script src="js/pmrem/PMREMGenerator.js"></script>
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+ <script src="js/pmrem/PMREMCubeUVPacker.js"></script>
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+ <script src="js/libs/dat.gui.min.js"></script>
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+
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+ <script>
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+
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+ if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
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+
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+ var container, stats;
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+ var params = {
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+ envMap: "EXR",
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+ roughness: 0.1,
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+ metalness: 0.95,
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+ exposure: 1.0
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+ };
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+ var camera, scene, renderer, controls, objects = [];
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+ var standardMaterial, floorMaterial;
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+ var pngCubeRenderTarget, exrCubeRenderTarget;
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+
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+ init();
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+ animate();
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+
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+ function init() {
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+
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+ container = document.createElement( 'div' );
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+ document.body.appendChild( container );
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+
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+ camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 2000 );
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+ camera.position.set( 0.0, 0, 120 );
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+
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+ scene = new THREE.Scene();
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+ scene.background = new THREE.Color( 0x000000 );
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+
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+ renderer = new THREE.WebGLRenderer();
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+ renderer.toneMapping = THREE.LinearToneMapping;
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+
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+ standardMaterial = new THREE.MeshStandardMaterial( {
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+ map: null,
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+ color: 0xffffff,
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+ metalness: 0.95,
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+ roughness: 0.1,
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+ envMapIntensity: 1.0
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+ } );
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+
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+ var geometry = new THREE.TorusKnotBufferGeometry( 18, 8, 150, 20 );
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+
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+ var torusMesh1 = new THREE.Mesh( geometry, standardMaterial );
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+ torusMesh1.position.x = 0.0;
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+
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+ scene.add( torusMesh1 );
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+ objects.push( torusMesh1 );
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+
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+ floorMaterial = new THREE.MeshBasicMaterial( {
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+ color: 0xffffff
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+ } );
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+
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+ var planeGeometry = new THREE.PlaneBufferGeometry( 200, 200 );
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+ var planeMesh1 = new THREE.Mesh( planeGeometry, floorMaterial );
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+ planeMesh1.position.y = - 50;
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+ planeMesh1.rotation.x = - Math.PI * 0.5;
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+ planeMesh1.receiveShadow = true;
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+ scene.add( planeMesh1 );
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+
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+ new THREE.EXRLoader().load( "textures/piz_compressed.exr", function ( texture ) {
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+
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+ texture.minFilter = THREE.NearestFilter;
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+ texture.magFilter = THREE.NearestFilter;
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+ texture.encoding = THREE.LinearEncoding;
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+
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+ var cubemapGenerator = new THREE.EquiangularToCubeGenerator( texture, 512 );
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+ var cubeMapTexture = cubemapGenerator.generate( renderer );
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+
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+ var pmremGenerator = new THREE.PMREMGenerator( cubeMapTexture );
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+ pmremGenerator.update( renderer );
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+
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+ var pmremCubeUVPacker = new THREE.PMREMCubeUVPacker( pmremGenerator.cubeLods );
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+ pmremCubeUVPacker.update( renderer );
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+
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+ exrCubeRenderTarget = pmremCubeUVPacker.CubeUVRenderTarget;
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+
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+ } );
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+
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+ new THREE.TextureLoader().load( "textures/equiangular.png", function ( texture ) {
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+
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+ texture.encoding = THREE.sRGBEncoding;
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+
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+ var cubemapGenerator = new THREE.EquiangularToCubeGenerator( texture, 512 );
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+ var cubeMapTexture = cubemapGenerator.generate( renderer );
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+
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+ var pmremGenerator = new THREE.PMREMGenerator( cubeMapTexture );
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+ pmremGenerator.update( renderer );
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+
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+ var pmremCubeUVPacker = new THREE.PMREMCubeUVPacker( pmremGenerator.cubeLods );
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+ pmremCubeUVPacker.update( renderer );
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+
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+ pngCubeRenderTarget = pmremCubeUVPacker.CubeUVRenderTarget;
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+
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+ } );
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+
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+ renderer.setPixelRatio( window.devicePixelRatio );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ container.appendChild( renderer.domElement );
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+
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+ renderer.gammaInput = false;
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+ renderer.gammaOutput = true;
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+
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+ stats = new Stats();
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+ container.appendChild( stats.dom );
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+
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+ controls = new THREE.OrbitControls( camera, renderer.domElement );
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+
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+ window.addEventListener( 'resize', onWindowResize, false );
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+
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+ var gui = new dat.GUI();
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+
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+ gui.add( params, 'envMap', [ 'EXR', 'PNG' ] );
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+ gui.add( params, 'roughness', 0, 1 );
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+ gui.add( params, 'metalness', 0, 1 );
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+ gui.add( params, 'exposure', 0, 2 );
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+ gui.open();
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ var width = window.innerWidth;
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+ var height = window.innerHeight;
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+
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+ camera.aspect = width / height;
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( width, height );
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+
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+ }
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+
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+ function animate() {
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+
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+ requestAnimationFrame( animate );
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+
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+ stats.begin();
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+ render();
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+ stats.end();
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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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+ if ( standardMaterial !== undefined ) {
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+
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+ standardMaterial.roughness = params.roughness;
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+ standardMaterial.metalness = params.metalness;
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+
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+ var newEnvMap = standardMaterial.envMap;
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+
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+ switch( params.envMap ) {
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+
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+ case 'EXR': newEnvMap = exrCubeRenderTarget ? exrCubeRenderTarget.texture : null; break;
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+ case 'PNG': newEnvMap = pngCubeRenderTarget ? pngCubeRenderTarget.texture : null; break;
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+
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+ }
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+
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+ if( newEnvMap !== standardMaterial.envMap ) {
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+
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+ standardMaterial.envMap = newEnvMap;
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+ standardMaterial.needsUpdate = true;
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+
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+ floorMaterial.map = newEnvMap;
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+ floorMaterial.needsUpdate = true;
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+
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+ }
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+ }
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+
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+ renderer.toneMappingExposure = Math.pow( params.exposure, 4.0 );
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+
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+ camera.lookAt( scene.position );
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+
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+ for ( var i = 0, l = objects.length; i < l; i ++ ) {
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+
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+ var object = objects[ i ];
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+ object.rotation.y += 0.005;
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+
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+ }
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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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+ </script>
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+
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+ </body>
|
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+</html>
|
Mr.doob
