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+<!DOCTYPE html>
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+<html>
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+ <head>
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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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+ <title>three.js webgl - molecules</title>
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+ <style>
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+
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+ body {
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+ margin: 0;
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+ font-family: Arial;
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+ overflow: hidden;
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+ }
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+
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+ a {
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+ color: #ffffff;
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+ }
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+
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+ #info {
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+ position: absolute;
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+ top: 0px;
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+ 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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+ font-weight: bold;
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+ text-align: center;
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+ z-index: 1;
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+ }
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+
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+ #menu {
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+ position: absolute;
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+ bottom: 20px;
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+ width: 100%;
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+ text-align: center;
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+ padding: 0;
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+ margin: 0;
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+ }
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+
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+ button {
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+ color: rgb(255,255,255);
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+ background: transparent;
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+ border: 0px;
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+ padding: 5px 10px;
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+ cursor: pointer;
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+ }
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+ button:hover {
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+ background-color: rgba(0,255,255,0.5);
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+ }
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+ button:active {
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+ color: #000000;
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+ background-color: rgba(0,255,255,1);
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+ }
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+
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+ .bond {
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+ width: 5px;
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+ height: 10px;
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+ background: #eee;
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+ display: block;
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+ }
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+ </style>
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+ </head>
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+ <body>
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+ <script src="../build/three.min.js"></script>
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+ <script src="js/controls/TrackballControls.js"></script>
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+ <script src="js/loaders/PDBLoader.js"></script>
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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">three.js webgl</a> - molecules</div>
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+ <div id="menu"></div>
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+
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+ <script>
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+ var camera, scene, renderer;
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+ var controls;
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+ var root;
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+
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+ var MOLECULES = {
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+ "Ethanol": "ethanol.pdb",
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+ "Aspirin": "aspirin.pdb",
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+ "Caffeine": "caffeine.pdb",
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+ "Nicotine": "nicotine.pdb",
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+ "LSD": "lsd.pdb",
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+ "Cocaine": "cocaine.pdb",
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+ "Cholesterol": "cholesterol.pdb",
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+ "Lycopene": "lycopene.pdb",
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+ "Glucose": "glucose.pdb",
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+ "Aluminium oxide": "Al2O3.pdb",
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+ "Cubane": "cubane.pdb",
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+ "Copper": "cu.pdb",
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+ "Fluorite": "caf2.pdb",
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+ "Salt": "nacl.pdb",
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+ "YBCO superconductor": "ybco.pdb",
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+ "Buckyball": "buckyball.pdb",
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+ //"Diamond": "diamond.pdb",
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+ "Graphite": "graphite.pdb"
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+ };
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+
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+ var loader = new THREE.PDBLoader();
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+ var colorSpriteMap = {};
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+ var baseSprite = document.createElement( 'img' );
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+
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+ var menu = document.getElementById( "menu" );
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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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+ camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 5000 );
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+ camera.position.z = 1500;
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+
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+ scene = new THREE.Scene();
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+
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+ var light = new THREE.HemisphereLight( 0xffffff, 0x000000 );
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+ light.position.set( 1, 1, 1 );
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+ scene.add( light );
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+
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+ root = new THREE.Object3D();
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+ scene.add( root );
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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.setClearColor( 0x050505 );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ document.getElementById( 'container' ).appendChild( renderer.domElement );
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+
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+ //
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+
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+ controls = new THREE.TrackballControls( camera, renderer.domElement );
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+ controls.rotateSpeed = 0.5;
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+ controls.addEventListener( 'change', render );
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+
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+ //
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+
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+ baseSprite.onload = function () {
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+
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+ loadMolecule( "models/molecules/caffeine.pdb" );
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+ createMenu();
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+
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+ };
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+
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+ baseSprite.src = 'textures/sprites/ball.png';
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+
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+ //
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+
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+ window.addEventListener( 'resize', onWindowResize, false );
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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 generateButtonCallback( url ) {
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+
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+ return function ( event ) {
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+
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+ loadMolecule( url );
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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 createMenu() {
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+
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+ for ( var m in MOLECULES ) {
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+
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+ var button = document.createElement( 'button' );
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+ button.innerHTML = m;
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+ menu.appendChild( button );
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+
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+ var url = "models/molecules/" + MOLECULES[ m ];
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+
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+ button.addEventListener( 'click', generateButtonCallback( url ), false );
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+
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+ }
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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 loadMolecule( url ) {
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+
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+ while( root.children.length > 0 ) {
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+
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+ var object = root.children[ 0 ];
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+ object.parent.remove( object );
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+
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+ }
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+
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+ loader.load( url, function ( geometry, geometryBonds ) {
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+
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+ var boxGeometry = new THREE.BoxGeometry( 1, 1, 1 );
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+ var sphereGeometry = new THREE.IcosahedronGeometry( 1, 2 );
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+
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+ var offset = THREE.GeometryUtils.center( geometry );
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+ geometryBonds.applyMatrix( new THREE.Matrix4().makeTranslation( offset.x, offset.y, offset.z ) );
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+
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+ for ( var i = 0; i < geometry.vertices.length; i ++ ) {
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+
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+ var position = geometry.vertices[ i ];
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+ var color = geometry.colors[ i ];
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+ var element = geometry.elements[ i ];
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+
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+ var material = new THREE.MeshLambertMaterial( { color: color } );
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+
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+ var object = new THREE.Mesh( sphereGeometry, material );
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+ object.position.copy( position );
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+ object.position.multiplyScalar( 75 );
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+ object.scale.multiplyScalar( 25 );
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+ root.add( object );
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+
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+ }
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+
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+ for ( var i = 0; i < geometryBonds.vertices.length; i += 2 ) {
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+
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+ var start = geometryBonds.vertices[ i ];
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+ var end = geometryBonds.vertices[ i + 1 ];
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+
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+ start.multiplyScalar( 75 );
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+ end.multiplyScalar( 75 );
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+
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+ var object = new THREE.Mesh( boxGeometry, new THREE.MeshLambertMaterial( 0xffffff ) );
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+ object.position.copy( start );
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+ object.position.lerp( end, 0.5 );
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+ object.scale.set( 5, 5, start.distanceTo( end ) );
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+ object.lookAt( end );
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+ root.add( object );
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+
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+ }
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+
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+ render();
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+
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+ } );
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+
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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 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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+ render();
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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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+ controls.update();
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+
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+ var time = Date.now() * 0.0004;
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+
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+ root.rotation.x = time;
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+ root.rotation.y = time * 0.7;
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+
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+ render();
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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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+ 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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+ </body>
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+
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+</html>
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Mr.doob