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323 lines
7.5 KiB
323 lines
7.5 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - materials - channels</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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background:#000;
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color:#fff;
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padding:0;
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margin:0;
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font-weight: bold;
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overflow:hidden;
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}
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a { color: #ffffff; }
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#info {
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position: absolute;
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top: 0px; width: 100%;
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color: #ffffff;
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padding: 5px;
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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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#vt { display:none }
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#vt, #vt a { color:orange; }
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</style>
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</head>
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<body>
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<div id="info">
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<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - <span id="description">Normal, Depth, DepthRGBA, DepthRGBAUnpacked, Materials</span> by <a href="https://Clara.io">Ben Houston</a>.<br />
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ninja head from <a href="http://developer.amd.com/tools-and-sdks/archive/legacy-cpu-gpu-tools/amd-gpu-meshmapper/" target="_blank" rel="noopener">AMD GPU MeshMapper</a>
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<div id="vt">displacement mapping requires vertex textures</div>
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</div>
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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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<script src="js/loaders/OBJLoader.js"></script>
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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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<script src='js/libs/dat.gui.min.js'></script>
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<script>
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if ( WEBGL.isWebGLAvailable() === false ) {
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document.body.appendChild( WEBGL.getWebGLErrorMessage() );
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}
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var stats;
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var camera, scene, renderer;
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var params = {
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material: 'normal',
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camera: 'perspective',
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side: 'double'
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};
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var sides = {
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'front': THREE.FrontSide,
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'back': THREE.BackSide,
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'double': THREE.DoubleSide
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};
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var cameraOrtho, cameraPerspective;
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var controlsOrtho, controlsPerspective;
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var mesh, materialStandard, materialDepthBasic, materialDepthRGBA, materialNormal;
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var height = 500; // of camera frustum
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var SCALE = 2.436143; // from original model
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var BIAS = - 0.428408; // from original model
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init();
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animate();
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initGui();
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// Init gui
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function initGui() {
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var gui = new dat.GUI();
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gui.add( params, 'material', [ 'standard', 'normal', 'depthBasic', 'depthRGBA' ] );
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gui.add( params, 'camera', [ 'perspective', 'ortho' ] );
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gui.add( params, 'side', [ 'front', 'back', 'double' ] );
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}
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function init() {
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var container = document.createElement( 'div' );
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document.body.appendChild( container );
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renderer = new THREE.WebGLRenderer();
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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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scene = new THREE.Scene();
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var aspect = window.innerWidth / window.innerHeight;
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cameraPerspective = new THREE.PerspectiveCamera( 45, aspect, 1000, 2500 );
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cameraPerspective.position.z = 1500;
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scene.add( cameraPerspective );
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cameraOrtho = new THREE.OrthographicCamera( - height * aspect, height * aspect, height, - height, 1000, 2500 );
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cameraOrtho.position.z = 1500;
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scene.add( cameraOrtho );
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camera = cameraPerspective;
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controlsPerspective = new THREE.OrbitControls( cameraPerspective, renderer.domElement );
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controlsPerspective.minDistance = 1000;
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controlsPerspective.maxDistance = 2500;
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controlsPerspective.enablePan = false;
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controlsPerspective.enableDamping = true;
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controlsOrtho = new THREE.OrbitControls( cameraOrtho, renderer.domElement );
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controlsOrtho.minZoom = 0.5;
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controlsOrtho.maxZoom = 2;
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controlsOrtho.enablePan = false;
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controlsOrtho.enableDamping = true;
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// lights
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var ambientLight = new THREE.AmbientLight( 0xffffff, 0.1 );
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scene.add( ambientLight );
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var pointLight = new THREE.PointLight( 0xff0000, 0.5 );
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pointLight.position.z = 2500;
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scene.add( pointLight );
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var pointLight2 = new THREE.PointLight( 0xff6666, 1 );
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camera.add( pointLight2 );
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var pointLight3 = new THREE.PointLight( 0x0000ff, 0.5 );
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pointLight3.position.x = - 1000;
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pointLight3.position.z = 1000;
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scene.add( pointLight3 );
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// textures
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var textureLoader = new THREE.TextureLoader();
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var normalMap = textureLoader.load( "models/obj/ninja/normal.jpg" );
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var aoMap = textureLoader.load( "models/obj/ninja/ao.jpg" );
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var displacementMap = textureLoader.load( "models/obj/ninja/displacement.jpg" );
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// material
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materialStandard = new THREE.MeshStandardMaterial( {
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color: 0xffffff,
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metalness: 0.5,
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roughness: 0.6,
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displacementMap: displacementMap,
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displacementScale: SCALE,
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displacementBias: BIAS,
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aoMap: aoMap,
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normalMap: normalMap,
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normalScale: new THREE.Vector2( 1, - 1 ),
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//flatShading: true,
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side: THREE.DoubleSide
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} );
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materialDepthBasic = new THREE.MeshDepthMaterial( {
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depthPacking: THREE.BasicDepthPacking,
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displacementMap: displacementMap,
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displacementScale: SCALE,
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displacementBias: BIAS,
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side: THREE.DoubleSide
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} );
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materialDepthRGBA = new THREE.MeshDepthMaterial( {
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depthPacking: THREE.RGBADepthPacking,
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displacementMap: displacementMap,
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displacementScale: SCALE,
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displacementBias: BIAS,
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side: THREE.DoubleSide
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} );
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materialNormal = new THREE.MeshNormalMaterial( {
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displacementMap: displacementMap,
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displacementScale: SCALE,
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displacementBias: BIAS,
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normalMap: normalMap,
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normalScale: new THREE.Vector2( 1, - 1 ),
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//flatShading: true,
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side: THREE.DoubleSide
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} );
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//
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var loader = new THREE.OBJLoader();
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loader.load( "models/obj/ninja/ninjaHead_Low.obj", function ( group ) {
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var geometry = group.children[ 0 ].geometry;
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geometry.attributes.uv2 = geometry.attributes.uv;
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geometry.center();
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mesh = new THREE.Mesh( geometry, materialNormal );
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mesh.scale.multiplyScalar( 25 );
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scene.add( mesh );
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} );
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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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window.addEventListener( 'resize', onWindowResize, false );
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}
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function onWindowResize() {
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var width = window.innerWidth;
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var height = window.innerHeight;
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var aspect = window.innerWidth / window.innerHeight;
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camera.aspect = aspect;
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camera.left = - height * aspect;
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camera.right = height * aspect;
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camera.top = height;
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camera.bottom = - height;
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camera.updateProjectionMatrix();
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renderer.setSize( width, height );
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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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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function render() {
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if ( mesh ) {
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var material = mesh.material;
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switch ( params.material ) {
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case 'standard': material = materialStandard; break;
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case 'depthBasic': material = materialDepthBasic; break;
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case 'depthRGBA': material = materialDepthRGBA; break;
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case 'normal': material = materialNormal; break;
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}
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if ( sides[ params.side ] !== material.side ) {
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switch ( params.side ) {
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case 'front': material.side = THREE.FrontSide; break;
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case 'back': material.side = THREE.BackSide; break;
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case 'double': material.side = THREE.DoubleSide; break;
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}
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material.needsUpdate = true;
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}
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mesh.material = material;
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}
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switch ( params.camera ) {
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case 'perspective': camera = cameraPerspective; break;
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case 'ortho': camera = cameraOrtho; break;
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}
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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