mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
alteredq
fbd12838b1
This commit has handful of things going on:
- had to sacrifice one light to please ANGLE, making it again up to 4 instead of up to 5 total lights :(
- Basic / Lambert / Phong materials now have new parameters:
"combine": THREE.Mix | THREE.Multiply [default]
- tells how to combine environment map with the original material:
- "Multiply" creates chrome-like metallic look (it's what was already there),
color of the underlying material is multiplied with the environment map,
this creates different colored metals
- "Mix" creates shiny plastic look
color of the underlying material is lerped with the environment map,
amount of the contribution from the environment map is controlled
by another new parameter "reflectivity"
"reflectivity": <float> [from <0.0, 1.0>]
- controls mixing of underlying material and environment map for "Mix" combine mode
0: pure underlying material, zero contribution from environment map (Basic/Lambert/Phong)
1: pure environment map, zero contribution from underlying material (uncolored chrome look)
"refraction_ratio": <float>
- controls refractive mapping, ratio of the index of refraction in the medium containing the incident ray
to that of the medium being entered
- sensible values seem to be from ~0.6 - 1.0
(in theory, e.g. air/glass should be 0.75, but this looks weird, values between 0.9 - 1.0 give the most interesting results,
though maybe there is bug somewhere in my code)
- for use refraction mapping, just add parameter to TextureCube like this (default is reflection mapping)
"new THREE.TextureCube( images, THREE.RefractionMap )"
242 lines
7.8 KiB
HTML
242 lines
7.8 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en">
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<head>
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<title>three.js - materials WebGL</title>
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<meta charset="utf-8">
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<style type="text/css">
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body {
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font-family: Monospace;
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background-color: #000;
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margin: 0px;
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overflow: hidden;
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}
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#log { color:#fff; position:absolute; top:50px; text-align:left; display:block; z-index:100; pointer-events:none; }
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</style>
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</head>
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<body>
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<pre id="log"></pre>
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<script type="text/javascript" src="../build/Three.js"></script>
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<script type="text/javascript" src="../src/extras/primitives/Sphere.js"></script>
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<script type="text/javascript" src="../src/extras/primitives/Plane.js"></script>
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<script type="text/javascript" src="js/Stats.js"></script>
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<script type="text/javascript">
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var container, stats;
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var camera, scene, renderer, objects;
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var particleLight, pointLight;
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init();
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setInterval( loop, 1000 / 60 );
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function init() {
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container = document.createElement('div');
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document.body.appendChild(container);
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camera = new THREE.Camera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
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camera.position.y = 200;
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camera.position.z = 800;
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scene = new THREE.Scene();
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// Grid
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var geometry = new THREE.Geometry();
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geometry.vertices.push( new THREE.Vertex( new THREE.Vector3( - 500, 0, 0 ) ) );
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geometry.vertices.push( new THREE.Vertex( new THREE.Vector3( 500, 0, 0 ) ) );
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for ( var i = 0; i <= 10; i ++ ) {
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var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0xffffff, opacity: 0.2 } ) );
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line.position.y = - 120;
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line.position.z = ( i * 100 ) - 500;
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scene.addObject( line );
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var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0xffffff, opacity: 0.2 } ) );
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line.position.x = ( i * 100 ) - 500;
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line.position.y = - 120;
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line.rotation.y = 90 * Math.PI / 180;
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scene.addObject( line );
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}
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// Spheres
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var geometry1 = new Sphere( 70, 32, 16, true );
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var generatedTexture = new THREE.Texture( generateTexture() );
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generatedTexture.image.loaded = 1;
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var materials = [];
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materials.push( { material: new THREE.MeshLambertMaterial( { color: 0xdddddd, shading: THREE.FlatShading } ), overdraw: true, doubleSided: false } );
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materials.push( { material: new THREE.MeshPhongMaterial( { ambient: 0x030303, color: 0xdddddd, specular: 0x009900, shininess: 30, shading: THREE.FlatShading } ), overdraw: true, doubleSided: false } );
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materials.push( { material: new THREE.MeshNormalMaterial( ), overdraw: true, doubleSided: false } );
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materials.push( { material: new THREE.MeshBasicMaterial( { color: 0x665500, blending: THREE.AdditiveBlending } ), overdraw: false, doubleSided: true } );
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//materials.push( { material: new THREE.MeshBasicMaterial( { color: 0xff0000, blending: THREE.SubtractiveBlending } ), overdraw: false, doubleSided: true } );
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materials.push( { material: new THREE.MeshLambertMaterial( { color: 0xdddddd, shading: THREE.SmoothShading } ), overdraw: true, doubleSided: false } );
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materials.push( { material: new THREE.MeshPhongMaterial( { ambient: 0x030303, color: 0xdddddd, specular: 0x009900, shininess: 30, shading: THREE.SmoothShading } ), overdraw: true, doubleSided: false } );
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materials.push( { material: new THREE.MeshNormalMaterial( { shading: THREE.SmoothShading } ), overdraw: true, doubleSided: false } );
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materials.push( { material: new THREE.MeshBasicMaterial( { color: 0xffaa00, wireframe: true } ), overdraw: false, doubleSided: true } );
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materials.push( { material: new THREE.MeshDepthMaterial( { near: 1, far: 2000 } ), overdraw: true, doubleSided: false } );
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materials.push( { material: new THREE.MeshBasicMaterial( { map: generatedTexture } ), overdraw: true, doubleSided: false } );
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materials.push( { material: new THREE.MeshLambertMaterial( { map: generatedTexture } ), overdraw: true, doubleSided: false } );
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// Extra mesh to be broken down for MeshFaceMaterial
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var geometry2 = new Sphere( 70, 32, 16, true );
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for ( var i = 0, l = geometry2.faces.length; i < l; i ++ ) {
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var face = geometry2.faces[ i ];
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if ( Math.random() > 0.7 ) face.material = [ materials[ Math.floor( Math.random() * materials.length ) ].material ];
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}
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materials.push( { material: new THREE.MeshFaceMaterial(), overdraw: false, doubleSided: true } );
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objects = [];
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var sphere, geometry;
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for ( var i = 0, l = materials.length; i < l; i ++ ) {
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geometry = materials[ i ].material instanceof THREE.MeshFaceMaterial ? geometry2 : geometry1;
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sphere = new THREE.Mesh( geometry, materials[ i ].material );
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sphere.overdraw = materials[ i ].overdraw;
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sphere.doubleSided = materials[ i ].doubleSided;
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sphere.position.x = ( i % 4 ) * 200 - 400;
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sphere.position.z = Math.floor( i / 4 ) * 200 - 200;
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sphere.rotation.x = Math.random() * 200 - 100;
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sphere.rotation.y = Math.random() * 200 - 100;
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sphere.rotation.z = Math.random() * 200 - 100;
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objects.push( sphere );
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scene.addObject( sphere );
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}
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particleLight = new THREE.Mesh( new Sphere( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0xffffff } ) );
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scene.addObject( particleLight );
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// Lights
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scene.addLight( new THREE.AmbientLight( 0x202020 ) );
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var directionalLight = new THREE.DirectionalLight( Math.random() * 0xffffff );
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directionalLight.position.x = Math.random() - 0.5;
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directionalLight.position.y = Math.random() - 0.5;
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directionalLight.position.z = Math.random() - 0.5;
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directionalLight.position.normalize();
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scene.addLight( directionalLight );
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pointLight = new THREE.PointLight( 0xffffff, 1 );
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scene.addLight( pointLight );
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renderer = new THREE.WebGLRenderer( scene );
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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var debugCanvas = document.createElement( 'canvas' );
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debugCanvas.width = 512;
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debugCanvas.height = 512;
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debugCanvas.style.position = 'absolute';
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debugCanvas.style.top = '0px';
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debugCanvas.style.left = '0px';
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container.appendChild( debugCanvas );
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debugContext = debugCanvas.getContext( '2d' );
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debugContext.setTransform( 1, 0, 0, 1, 256, 256 );
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debugContext.strokeStyle = '#000000';
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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container.appendChild(stats.domElement);
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}
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function generateTexture() {
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var canvas = document.createElement( 'canvas' );
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canvas.width = 256;
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canvas.height = 256;
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var context = canvas.getContext( '2d' );
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var image = context.getImageData( 0, 0, 256, 256 );
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var x = 0, y = 0;
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for ( var i = 0, j = 0, l = image.data.length; i < l; i += 4, j ++ ) {
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x = j % 256;
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y = x == 0 ? y + 1 : y;
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image.data[ i + 2 ] = Math.floor( x ^ y );
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image.data[ i + 3 ] = 255;
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}
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context.putImageData( image, 0, 0 );
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return canvas;
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}
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//
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function loop() {
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var timer = new Date().getTime() * 0.0001;
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camera.position.x = Math.cos( timer ) * 1000;
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camera.position.z = Math.sin( timer ) * 1000;
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for ( var i = 0, l = objects.length; i < l; i++ ) {
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var object = objects[ i ];
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object.rotation.x += 0.01;
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object.rotation.y += 0.005;
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}
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particleLight.position.x = Math.sin( timer * 7 ) * 300;
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particleLight.position.y = Math.cos( timer * 5 ) * 400;
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particleLight.position.z = Math.cos( timer * 3 ) * 300;
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pointLight.position.x = particleLight.position.x;
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pointLight.position.y = particleLight.position.y;
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pointLight.position.z = particleLight.position.z;
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renderer.render( scene, camera );
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stats.update();
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}
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function log( text ) {
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var e = document.getElementById("log");
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e.innerHTML = text + "<br/>" + e.innerHTML;
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}
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</script>
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</body>
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</html>
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