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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 - node material - custom size hdr environment mapping</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: #fff;
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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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+
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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> - High dynamic range (RGBE) Image-based Lighting (IBL)<br />using run-time generated pre-filtered roughness mipmaps (PMREM)<br/>
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+ Created by Prashant Sharma and <a href="http://clara.io/" target="_blank" rel="noopener">Ben Houston</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/RGBELoader.js"></script>
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+ <script src="js/loaders/HDRCubeTextureLoader.js"></script>
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+
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+ <script src="js/WebGL.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 type="module">
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+ /*
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+ * COPIED FROM webgl_materials_envmaps_hdr.html
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+ *
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+ *
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+ *
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+ */
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+ import './js/nodes/THREE.Nodes.js';
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+
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+ if ( WEBGL.isWebGLAvailable() === false ) {
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+
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+ document.body.appendChild( WEBGL.getWebGLErrorMessage() );
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+
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+ }
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+
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+ var params = {
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+ textureSize: 1024,
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+ roughness: 0.0,
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+ metalness: 0.0,
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+ exposure: 1.0,
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+ animate: true,
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+ debug: false
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+ };
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+
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+ var container, stats;
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+ var camera, scene, renderer, controls;
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+ var nodeMaterial, nodeTexture, nodeTextureSize, torusMesh, planeMesh;
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+ var ldrCubeRenderTarget, hdrCubeRenderTarget, rgbmCubeRenderTarget;
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+ var ldrCubeMap, hdrCubeMap, rgbmCubeMap;
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+
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+ init();
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+ animate();
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+
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+ function generate( textureSize ) {
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+
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+ nodeTextureSize.value = textureSize;
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+
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+ var pmremGenerator = new THREE.PMREMGenerator( hdrCubeMap, undefined, textureSize / 4 );
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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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+ hdrCubeRenderTarget = pmremCubeUVPacker.CubeUVRenderTarget;
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+ nodeTexture.value = hdrCubeRenderTarget.texture;
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+
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+ hdrCubeMap.magFilter = THREE.LinearFilter;
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+ hdrCubeMap.needsUpdate = true;
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+
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+ planeMesh.material.map = hdrCubeRenderTarget.texture;
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+ planeMesh.material.needsUpdate = true;
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+
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+ pmremGenerator.dispose();
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+ pmremCubeUVPacker.dispose();
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+
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+ }
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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, 1000 );
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+ camera.position.set( 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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+ //
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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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+ nodeMaterial = new THREE.StandardNodeMaterial();
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+ nodeMaterial.color.value = new THREE.Color( 0xffffff );
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+ nodeMaterial.roughness.value = params.metalness;
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+ nodeMaterial.metalness.value = params.roguhness;
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+ nodeMaterial.visible = false;
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+
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+ nodeTexture = new THREE.TextureNode();
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+ nodeTextureSize = new THREE.FloatNode( 1024 );
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+
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+ nodeMaterial.environment = new THREE.TextureCubeNode( nodeTexture, nodeTextureSize );
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+
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+ torusMesh = new THREE.Mesh( geometry, nodeMaterial );
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+ scene.add( torusMesh );
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+
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+ planeMesh = new THREE.Mesh( new THREE.PlaneBufferGeometry( 200, 200 ), new THREE.MeshBasicMaterial() );
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+ planeMesh.position.y = - 50;
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+ planeMesh.rotation.x = - Math.PI * 0.5;
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+ scene.add( planeMesh );
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+
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+ var hdrUrls = [ 'px.hdr', 'nx.hdr', 'py.hdr', 'ny.hdr', 'pz.hdr', 'nz.hdr' ];
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+ hdrCubeMap = new THREE.HDRCubeTextureLoader()
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+ .setPath( './textures/cube/pisaHDR/' )
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+ .load( THREE.UnsignedByteType, hdrUrls, function () {
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+
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+ generate( params.textureSize );
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+
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+ nodeMaterial.visible = true;
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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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+ container.appendChild( renderer.domElement );
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+
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+ //renderer.toneMapping = THREE.ReinhardToneMapping;
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+ renderer.gammaInput = true; // ???
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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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+ controls.minDistance = 50;
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+ controls.maxDistance = 300;
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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, 'textureSize', [ 128, 256, 512, 1024, 2048, 4096 ] );
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+ gui.add( params, 'roughness', 0, 1, 0.01 );
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+ gui.add( params, 'metalness', 0, 1, 0.01 );
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+ gui.add( params, 'exposure', 0, 2, 0.01 );
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+ gui.add( params, 'animate', true );
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+ gui.add( params, 'debug', false );
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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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+ torusMesh.material.roughness.value = params.roughness;
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+ torusMesh.material.metalness.value = params.metalness;
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+
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+ if ( nodeTextureSize.value !== params.textureSize ) {
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+
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+ generate( params.textureSize );
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+
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+ }
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+
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+ if ( params.animate ) {
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+
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+ torusMesh.rotation.y += 0.005;
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+
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+ }
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+
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+ planeMesh.visible = params.debug;
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+
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+ scene.background = hdrCubeMap;
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+ renderer.toneMappingExposure = params.exposure;
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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>
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sunag