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webgl_geometry_large_mesh.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - geometry - large mesh</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
background:#000;
color:#fff;
padding:0;
margin:0;
overflow:hidden;
font-family:georgia;
text-align:center;
}
h1 { }
a { color:skyblue }
canvas { pointer-events:none; z-index:10; }
#log { position:absolute; top:50px; text-align:left; display:block; z-index:100 }
#d { text-align:center; margin:1em 0 -18em 0; z-index:0; position:relative; display:block }
.button { background:orange; color:#fff; padding:0.2em 0.5em; cursor:pointer }
.inactive { background:#999; color:#eee }
</style>
</head>
<body>
<div id="d">
<h1>Large mesh test</h1>
<span id="rcanvas" class="button inactive">2d canvas renderer</span>
<span id="rwebgl" class="button">WebGL renderer</span>
<br/>
<p>Lucy model from <a href="http://graphics.stanford.edu/data/3Dscanrep/">Stanford 3d scanning repository</a>
(decimated with <a href="http://meshlab.sourceforge.net/">Meshlab</a>).
<p>Please be patient while the mesh is loading. It may take a while, it's 2 MB file.
<br/>
<p>Best viewed in Chrome or Firefox using WebGL renderer.
<p>Canvas renderer is very slow for this demo and only diffuse material works there.
<p>Use the flag --allow-file-access-from-files if working localy in Chrome.
</div>
<pre id="log"></pre>
<script src="../build/three.min.js"></script>
<script src="js/Stats.js"></script>
<script>
var SCREEN_WIDTH = window.innerWidth;
var SCREEN_HEIGHT = window.innerHeight;
var FLOOR = -250;
var container, stats;
var camera, scene, canvasRenderer, webglRenderer;
var loader;
var mesh, zmesh, lightMesh;
var directionalLight, pointLight;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var render_canvas = 1, render_gl = 1;
var has_gl = 0;
var bcanvas = document.getElementById( "rcanvas" );
var bwebgl = document.getElementById( "rwebgl" );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
init();
animate();
render_canvas = !has_gl;
bwebgl.style.display = has_gl ? "inline" : "none";
bcanvas.className = render_canvas ? "button" : "button inactive";
function addMesh( geometry, scale, x, y, z, rx, ry, rz, material ) {
mesh = new THREE.Mesh( geometry, material );
mesh.scale.set( scale, scale, scale );
mesh.position.set( x, y, z );
mesh.rotation.set( rx, ry, rz );
scene.add( mesh );
}
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 50, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 100000 );
camera.position.z = 1500;
scene = new THREE.Scene();
// LIGHTS
var ambient = new THREE.AmbientLight( 0x101010 );
scene.add( ambient );
directionalLight = new THREE.DirectionalLight( 0xffffff, 0.5 );
directionalLight.position.set( 1, 1, 2 ).normalize();
scene.add( directionalLight );
pointLight = new THREE.PointLight( 0xffaa00 );
pointLight.position.set( 0, 0, 0 );
scene.add( pointLight );
// light representation
sphere = new THREE.SphereGeometry( 100, 16, 8, 1 );
lightMesh = new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: 0xffaa00 } ) );
lightMesh.scale.set( 0.05, 0.05, 0.05 );
lightMesh.position = pointLight.position;
scene.add( lightMesh );
if ( render_gl ) {
try {
webglRenderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
webglRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
webglRenderer.domElement.style.position = "relative";
container.appendChild( webglRenderer.domElement );
has_gl = 1;
}
catch (e) {
}
}
if( render_canvas ) {
canvasRenderer = new THREE.CanvasRenderer();
canvasRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
container.appendChild( canvasRenderer.domElement );
}
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
stats.domElement.style.zIndex = 100;
container.appendChild( stats.domElement );
bcanvas.addEventListener( "click", toggleCanvas, false );
bwebgl.addEventListener( "click", toggleWebGL, false );
loader = new THREE.BinaryLoader( true );
//loader = new THREE.JSONLoader( true );
document.body.appendChild( loader.statusDomElement );
var s = Date.now(),
callback = function( geometry ) { createScene( geometry, s ) };
//loader.load( 'obj/lucy/Lucy100k_slim.js', callback );
loader.load( 'obj/lucy/Lucy100k_bin.js', callback );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
if ( render_canvas ) canvasRenderer.setSize( window.innerWidth, window.innerHeight );
if ( render_gl && has_gl ) webglRenderer.setSize( window.innerWidth, window.innerHeight );
}
function createScene( geometry, start ) {
addMesh( geometry, 0.75, 900, 0, 0, 0,0,0, new THREE.MeshPhongMaterial( { ambient: 0x030303, color: 0x030303, specular: 0x990000, shininess: 30 } ) );
addMesh( geometry, 0.75, 300, 0, 0, 0,0,0, new THREE.MeshFaceMaterial( ) );
addMesh( geometry, 0.75, -300, 0, 0, 0,0,0, new THREE.MeshPhongMaterial( { ambient: 0x030303, color: 0x111111, specular: 0xffaa00, shininess: 10 } ) );
addMesh( geometry, 0.75, -900, 0, 0, 0,0,0, new THREE.MeshPhongMaterial( { ambient: 0x030303, color: 0x555555, specular: 0x666666, shininess: 10 } ) );
loader.statusDomElement.style.display = "none";
log( "geometry.vertices: " + geometry.vertices.length );
log( "geometry.faces: " + geometry.faces.length );
log( "model loaded and created in " + ( Date.now() - start ) + " ms" );
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX );
mouseY = ( event.clientY - windowHalfY );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
var r = 0;
function render() {
camera.position.x += ( mouseX - camera.position.x ) * .05;
camera.position.y += ( - mouseY - camera.position.y ) * .05;
camera.lookAt( scene.position );
lightMesh.position.x = 700 * Math.cos( r );
lightMesh.position.z = 700 * Math.sin( r );
r += 0.01;
if ( render_canvas ) canvasRenderer.render( scene, camera );
if ( render_gl && has_gl ) webglRenderer.render( scene, camera );
}
function log( text ) {
var e = document.getElementById( "log" );
e.innerHTML = text + "<br/>" + e.innerHTML;
}
function toggleCanvas() {
render_canvas = !render_canvas;
bcanvas.className = render_canvas ? "button" : "button inactive";
render_gl = !render_canvas;
bwebgl.className = render_gl ? "button" : "button inactive";
if( has_gl )
webglRenderer.domElement.style.display = render_gl ? "block" : "none";
canvasRenderer.domElement.style.display = render_canvas ? "block" : "none";
}
function toggleWebGL() {
render_gl = !render_gl;
bwebgl.className = render_gl ? "button" : "button inactive";
render_canvas = !render_gl;
bcanvas.className = render_canvas ? "button" : "button inactive";
if( has_gl )
webglRenderer.domElement.style.display = render_gl ? "block" : "none";
canvasRenderer.domElement.style.display = render_canvas ? "block" : "none";
}
</script>
</body>
</html>