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webgl_geometry_large_mesh.html 7.9 KB
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Added breaking of mesh into chunks of max 64K vertices (done in materials sorting step).  
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<!DOCTYPE HTML>
<html lang="en">
	<head>
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Renamed THREE.Supports to THREE.Detector, moved it to extras. Also cleaned up example title tags.  
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		<title>three.js - geometry - large mesh - webgl</title>
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		<meta charset="utf-8">
		<style type="text/css">
			body {
				background:#000;
				color:#fff;
				padding:0;
				margin:0;
				overflow:hidden;
				font-family:georgia;
				text-align:center;
			}
			h1 { }
			a { color:skyblue }
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Fixed stats widget appearance issues that appeared with recent Chrome updates.  
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			canvas { pointer-events:none; z-index:10; }
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			#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>).
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Added experimental binary mesh loader. Updated OBJ converter and examples accordingly.  
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			<p>Please be patient while the mesh is loading. It may take a while, it's 2MB file.
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			<br/>
			<p>Best viewed in Chrome 8/9 or Firefox 4 using WebGL renderer.
			<p>Canvas renderer is very slow for this demo and only diffuse material works there.
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Small clarifications in large mesh example description: model size meanwhile...  
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			<p>Use the flag --allow-file-access-from-files if working localy in Chrome.
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		</div>
		
		<pre id="log"></pre>
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* Renamed `examples/large_mesh_test.html` to `examples/geometry_large_mesh.html`  
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		<script type="text/javascript" src="../build/Three.js"></script>
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src/io/Loader.js ⟶ src/extras/io/Loader.js  
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		<script type="text/javascript" src="../src/extras/io/Loader.js"></script>
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* `examples/geometry/primitives` ⟶ `src/extras/primitives`  
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		<script type="text/javascript" src="../src/extras/primitives/Sphere.js"></script>
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Renamed THREE.Supports to THREE.Detector, moved it to extras. Also cleaned up example title tags.  
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		<script type="text/javascript" src="js/Stats.js"></script>

		<script type="text/javascript">

			var SCREEN_WIDTH = window.innerWidth;
			var SCREEN_HEIGHT = window.innerHeight;
			var FLOOR = -250;

			var container;
			var stats;

			var camera;
			var scene;
			var canvasRenderer, webglRenderer;
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			var loader;
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			var mesh, zmesh, lightMesh;
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			var directionalLight, pointLight;
			
			var mouseX = 0;
			var mouseY = 0;

			var windowHalfX = window.innerWidth >> 1;
			var windowHalfY = window.innerHeight >> 1;

			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();
			
			loop();
			
			render_canvas = !has_gl;
			bwebgl.style.display = has_gl ? "inline" : "none";
			bcanvas.className = render_canvas ? "button" : "button inactive";
			
			setInterval(loop, 1000/60);
			
			function addMesh( geometry, scale, x, y, z, rx, ry, rz, material ) {
				
				mesh = new THREE.Mesh( geometry, material );
				mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
				mesh.position.x = x;
				mesh.position.y = y;
				mesh.position.z = z;
				mesh.rotation.x = rx;
				mesh.rotation.y = ry;
				mesh.rotation.z = rz;
				mesh.overdraw = true;
				mesh.updateMatrix();
				scene.addObject(mesh);
				
			}
			
			function init() {

				container = document.createElement('div');
				document.body.appendChild(container);

				camera = new THREE.Camera( 50, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 100000 );
				camera.position.z = 1500;
				camera.updateMatrix();

				scene = new THREE.Scene();

				// LIGHTS

				var ambient = new THREE.AmbientLight( 0x101010 );
				scene.addLight( ambient );

				directionalLight = new THREE.DirectionalLight( 0xffffff, 0.5 );
				directionalLight.position.x = 1;
				directionalLight.position.y = 1;
				directionalLight.position.z = 2;
				directionalLight.position.normalize();
				scene.addLight( directionalLight );

				pointLight = new THREE.PointLight( 0xffaa00 );
				pointLight.position.x = 0;
				pointLight.position.y = 0;
				pointLight.position.z = 0;
				scene.addLight( pointLight );

				// light representation
				sphere = new Sphere( 100, 16, 8, 1 );
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				lightMesh = new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: 0xffaa00 } ) );
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				lightMesh.scale.x = lightMesh.scale.y = lightMesh.scale.z = 0.05;
				lightMesh.position = pointLight.position;
				lightMesh.overdraw = true;
				lightMesh.updateMatrix();
				scene.addObject(lightMesh);
				

				if ( render_gl ) {
					try {
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Moved MeshPhongMaterial onto common shader builder machinery, ubershader is no more.  
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						webglRenderer = new THREE.WebGLRenderer();
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						webglRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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						webglRenderer.domElement.style.position = "relative";
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						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);
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				loader = new THREE.Loader( true );
				document.body.appendChild( loader.statusDomElement );
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Refactored Loader parameters to allow optional separate paths for texture and binary files.  
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				var s = (new Date).getTime(),
					callback = function( geometry ) { createScene( geometry, s ) };
				
				//loader.loadAscii( { model: 'obj/lucy/Lucy100k_slim.js', callback: callback } );
				loader.loadBinary( { model: 'obj/lucy/Lucy100k_bin.js', callback: callback } );
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Added experimental binary mesh loader. Updated OBJ converter and examples accordingly.  
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			}
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			function createScene( geometry, start ) {
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				addMesh( geometry, 0.75, 900, 0, 0, 0,0,0, new THREE.MeshPhongMaterial( { ambient: 0x030303, color: 0x030303, specular: 0x990000, shininess: 30 } ) );
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				addMesh( geometry, 0.75, 300, 0, 0, 0,0,0, new THREE.MeshFaceMaterial( ) );
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				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 } ) );
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				loader.statusDomElement.style.display = "none";
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				log( "geometry.vertices: " + geometry.vertices.length );
				log( "geometry.faces: " + geometry.faces.length );
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				log( "model loaded and created in " + ((new Date).getTime() - start) + " ms" );
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			}
			
			function onDocumentMouseMove(event) {

				mouseX = ( event.clientX - windowHalfX );
				mouseY = ( event.clientY - windowHalfY );

			}

			var r = 0;
			
			function loop() {

				camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( - mouseY - camera.position.y ) * .05;
				camera.updateMatrix();
				
				lightMesh.position.x = 700*Math.cos(r);
				lightMesh.position.z = 700*Math.sin(r);
				lightMesh.updateMatrix();

				r += 0.01;
				
				
				if ( render_canvas ) canvasRenderer.render( scene, camera );
				if ( render_gl && has_gl ) webglRenderer.render( scene, camera );

				stats.update();

			}

			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>