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-<!DOCTYPE html>
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-<html lang="en">
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- <head>
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- <title>three.js webgl - materials</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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- <link type="text/css" rel="stylesheet" href="main.css">
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- </head>
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- <body>
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- <div id="info">
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- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl materials
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- </div>
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-
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- <!-- Import maps polyfill -->
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- <!-- Remove this when import maps will be widely supported -->
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- <script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
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-
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- <script type="importmap">
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- {
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- "imports": {
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- "three": "../build/three.module.js",
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- "three/addons/": "./jsm/"
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- }
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- }
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- </script>
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-
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- <script type="module">
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-
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- import * as THREE from 'three';
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-
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- import Stats from 'three/addons/libs/stats.module.js';
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-
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- let stats;
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-
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- let camera, scene, renderer;
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- let pointLight;
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-
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- const objects = [], materials = [];
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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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- const container = document.createElement( 'div' );
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- document.body.appendChild( container );
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-
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- camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
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- camera.position.set( 0, 200, 800 );
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-
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- scene = new THREE.Scene();
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-
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- // Grid
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-
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- const helper = new THREE.GridHelper( 1000, 40, 0x303030, 0x303030 );
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- helper.position.y = - 75;
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- scene.add( helper );
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-
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- // Materials
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-
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- const texture = new THREE.Texture( generateTexture() );
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- texture.colorSpace = THREE.SRGBColorSpace;
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- texture.needsUpdate = true;
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-
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- materials.push( new THREE.MeshLambertMaterial( { map: texture, transparent: true } ) );
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- materials.push( new THREE.MeshLambertMaterial( { color: 0xdddddd } ) );
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- materials.push( new THREE.MeshPhongMaterial( { color: 0xdddddd, specular: 0x009900, shininess: 30, flatShading: true } ) );
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- materials.push( new THREE.MeshNormalMaterial() );
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- materials.push( new THREE.MeshBasicMaterial( { color: 0xffaa00, transparent: true, blending: THREE.AdditiveBlending } ) );
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- materials.push( new THREE.MeshLambertMaterial( { color: 0xdddddd } ) );
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- materials.push( new THREE.MeshPhongMaterial( { color: 0xdddddd, specular: 0x009900, shininess: 30, map: texture, transparent: true } ) );
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- materials.push( new THREE.MeshNormalMaterial( { flatShading: true } ) );
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- materials.push( new THREE.MeshBasicMaterial( { color: 0xffaa00, wireframe: true } ) );
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- materials.push( new THREE.MeshDepthMaterial() );
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- materials.push( new THREE.MeshLambertMaterial( { color: 0x666666, emissive: 0xff0000 } ) );
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- materials.push( new THREE.MeshPhongMaterial( { color: 0x000000, specular: 0x666666, emissive: 0xff0000, shininess: 10, opacity: 0.9, transparent: true } ) );
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- materials.push( new THREE.MeshBasicMaterial( { map: texture, transparent: true } ) );
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-
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- // Spheres geometry
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-
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- const geometry = new THREE.SphereGeometry( 70, 32, 16 );
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-
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- for ( let i = 0, l = materials.length; i < l; i ++ ) {
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-
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- addMesh( geometry, materials[ i ] );
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-
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- }
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-
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- // Lights
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-
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- scene.add( new THREE.AmbientLight( 0x111111 ) );
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-
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- const directionalLight = new THREE.DirectionalLight( 0xffffff, 0.125 );
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-
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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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-
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- scene.add( directionalLight );
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-
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- pointLight = new THREE.PointLight( 0xffffff, 1 );
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- scene.add( pointLight );
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-
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- pointLight.add( new THREE.Mesh( new THREE.SphereGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0xffffff } ) ) );
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-
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- //
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-
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- renderer = new THREE.WebGLRenderer( { antialias: true } );
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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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- //
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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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- //
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-
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- window.addEventListener( 'resize', onWindowResize );
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-
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- }
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-
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- function addMesh( geometry, material ) {
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-
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- const mesh = new THREE.Mesh( geometry, material );
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-
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- mesh.position.x = ( objects.length % 4 ) * 200 - 400;
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- mesh.position.z = Math.floor( objects.length / 4 ) * 200 - 200;
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-
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- mesh.rotation.x = Math.random() * 200 - 100;
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- mesh.rotation.y = Math.random() * 200 - 100;
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- mesh.rotation.z = Math.random() * 200 - 100;
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-
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- objects.push( mesh );
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-
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- scene.add( mesh );
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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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- camera.aspect = window.innerWidth / window.innerHeight;
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- camera.updateProjectionMatrix();
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-
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- renderer.setSize( window.innerWidth, window.innerHeight );
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-
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- }
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-
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- function generateTexture() {
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-
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- const canvas = document.createElement( 'canvas' );
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- canvas.width = 256;
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- canvas.height = 256;
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-
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- const context = canvas.getContext( '2d' );
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- const image = context.getImageData( 0, 0, 256, 256 );
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-
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- let x = 0, y = 0;
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-
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- for ( let i = 0, j = 0, l = image.data.length; i < l; i += 4, j ++ ) {
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-
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- x = j % 256;
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- y = ( x === 0 ) ? y + 1 : y;
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-
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- image.data[ i ] = 255;
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- image.data[ i + 1 ] = 255;
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- image.data[ i + 2 ] = 255;
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- image.data[ i + 3 ] = Math.floor( x ^ y );
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-
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- }
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-
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- context.putImageData( image, 0, 0 );
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-
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- return canvas;
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-
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- }
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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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- render();
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- stats.update();
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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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- const timer = 0.0001 * Date.now();
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-
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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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-
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- camera.lookAt( scene.position );
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-
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- for ( let i = 0, l = objects.length; i < l; i ++ ) {
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-
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- const object = objects[ i ];
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-
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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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- }
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-
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- materials[ materials.length - 2 ].emissive.setHSL( 0.54, 1, 0.35 * ( 0.5 + 0.5 * Math.sin( 35 * timer ) ) );
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- materials[ materials.length - 3 ].emissive.setHSL( 0.04, 1, 0.35 * ( 0.5 + 0.5 * Math.cos( 35 * timer ) ) );
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-
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- pointLight.position.x = Math.sin( timer * 7 ) * 300;
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- pointLight.position.y = Math.cos( timer * 5 ) * 400;
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- pointLight.position.z = Math.cos( timer * 3 ) * 300;
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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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Mr.doob
