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three.js

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提交 406063d5 编写于 作者: A alteredq
浏览文件
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Added breaking of mesh into chunks of max 64K vertices (done in materials sorting step).

上级 1fae8234
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Showing with 351 addition and 8 deletion
examples/large_mesh_test.html 0 → 100644
浏览文件 @ 406063d5
<!DOCTYPE HTML>
<html lang="en">
<head>
<title>three.js - Large mesh test</title>
<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 }
canvas { pointer-events:none; z-index:10; position:relative; }
#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 4.5MB file.
<p>Using a modified version of <a href="http://github.com/alteredq/three.js">Three.js</a> by mrdoob.
<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.
</div>
<pre id="log"></pre>
<!--
<script type="text/javascript" src="../build/Three.js"></script>
-->
<script type="text/javascript" src="../src/Three.js"></script>
<script type="text/javascript" src="../src/core/Color.js"></script>
<script type="text/javascript" src="../src/core/Vector2.js"></script>
<script type="text/javascript" src="../src/core/Vector3.js"></script>
<script type="text/javascript" src="../src/core/Vector4.js"></script>
<script type="text/javascript" src="../src/core/Rectangle.js"></script>
<script type="text/javascript" src="../src/core/Matrix3.js"></script>
<script type="text/javascript" src="../src/core/Matrix4.js"></script>
<script type="text/javascript" src="../src/core/Vertex.js"></script>
<script type="text/javascript" src="../src/core/Face3.js"></script>
<script type="text/javascript" src="../src/core/Face4.js"></script>
<script type="text/javascript" src="../src/core/UV.js"></script>
<script type="text/javascript" src="../src/core/Geometry.js"></script>
<script type="text/javascript" src="../src/cameras/Camera.js"></script>
<script type="text/javascript" src="../src/lights/Light.js"></script>
<script type="text/javascript" src="../src/lights/AmbientLight.js"></script>
<script type="text/javascript" src="../src/lights/DirectionalLight.js"></script>
<script type="text/javascript" src="../src/lights/PointLight.js"></script>
<script type="text/javascript" src="../src/objects/Object3D.js"></script>
<script type="text/javascript" src="../src/objects/Mesh.js"></script>
<script type="text/javascript" src="../src/objects/Particle.js"></script>
<script type="text/javascript" src="../src/objects/Line.js"></script>
<script type="text/javascript" src="../src/materials/LineColorMaterial.js"></script>
<script type="text/javascript" src="../src/materials/MeshPhongMaterial.js"></script>
<script type="text/javascript" src="../src/materials/MeshBitmapMaterial.js"></script>
<script type="text/javascript" src="../src/materials/MeshColorFillMaterial.js"></script>
<script type="text/javascript" src="../src/materials/MeshColorStrokeMaterial.js"></script>
<script type="text/javascript" src="../src/materials/MeshFaceMaterial.js"></script>
<script type="text/javascript" src="../src/materials/ParticleCircleMaterial.js"></script>
<script type="text/javascript" src="../src/materials/ParticleBitmapMaterial.js"></script>
<script type="text/javascript" src="../src/scenes/Scene.js"></script>
<script type="text/javascript" src="../src/renderers/Projector.js"></script>
<script type="text/javascript" src="../src/renderers/CanvasRenderer.js"></script>
<script type="text/javascript" src="../src/renderers/SVGRenderer.js"></script>
<script type="text/javascript" src="../src/renderers/WebGLRenderer.js"></script>
<script type="text/javascript" src="../src/renderers/renderables/RenderableFace3.js"></script>
<script type="text/javascript" src="../src/renderers/renderables/RenderableFace4.js"></script>
<script type="text/javascript" src="../src/renderers/renderables/RenderableParticle.js"></script>
<script type="text/javascript" src="../src/renderers/renderables/RenderableLine.js"></script>
<!--
-->
<script type="text/javascript" src="geometry/primitives/Sphere.js"></script>
<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;
var mesh, zmesh, lightMesh, geometry;
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 );
lightMesh = new THREE.Mesh( sphere, new THREE.MeshColorFillMaterial( 0xffaa00 ) );
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 {
webglRenderer = new THREE.WebGLRenderer( scene );
webglRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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);
function createModel() {
geometry = new Lucy100k( );
addMesh( geometry, 0.75, 900, 0, 0, 0,0,0, new THREE.MeshPhongMaterial( 0x030303, 0x030303, 0x990000, 30, 1.0 ) );
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( 0x030303, 0x111111, 0xffaa00, 10, 1.0 ) );
addMesh( geometry, 0.75, -900, 0, 0, 0,0,0, new THREE.MeshPhongMaterial( 0x030303, 0x555555, 0x666666, 10, 1.0 ) );
/*
log( "geometry.vertices: " + geometry.vertices.length );
log( "geometry.faces: " + geometry.faces.length );
*/
}
loadAsync( "obj/lucy/Lucy100k.js", createModel );
}
function loadAsync( url, callback ) {
var el = document.createElement( 'script' );
el.type = 'text/javascript';
el.onload = callback;
el.src = url;
document.getElementsByTagName("head")[0].appendChild(el);
}
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>
src/objects/Mesh.js
浏览文件 @ 406063d5
...@@ -32,11 +32,11 @@ THREE.Mesh.prototype.sortFacesByMaterial = function () { ...@@ -32,11 +32,11 @@ THREE.Mesh.prototype.sortFacesByMaterial = function () {
// which could then use vertex color attributes instead of each being // which could then use vertex color attributes instead of each being
// in its separate VBO // in its separate VBO
var i, l, f, fl, face, material, hash_array; var i, l, f, fl, face, material, vertices, mhash, ghash, hash_map = {};
function materialHash( material ) { function materialHash( material ) {
hash_array = []; var hash_array = [];
for ( i = 0, l = material.length; i < l; i++ ) { for ( i = 0, l = material.length; i < l; i++ ) {
...@@ -60,20 +60,44 @@ THREE.Mesh.prototype.sortFacesByMaterial = function () { ...@@ -60,20 +60,44 @@ THREE.Mesh.prototype.sortFacesByMaterial = function () {
face = this.geometry.faces[ f ]; face = this.geometry.faces[ f ];
material = face.material; material = face.material;
mhash = materialHash( material );
hash = materialHash( material); if ( hash_map[ mhash ] == undefined ) {
hash_map[ mhash ] = { 'hash': mhash, 'counter': 0 };
}
ghash = hash_map[ mhash ].hash + "_" + hash_map[ mhash ].counter;
if ( this.materialFaceGroup[ hash ] == undefined ) { if ( this.materialFaceGroup[ ghash ] == undefined ) {
this.materialFaceGroup[ hash ] = { 'faces': [], 'material': material }; this.materialFaceGroup[ ghash ] = { 'faces': [], 'material': material, 'vertices': 0 };
} }
vertices = face instanceof THREE.Face3 ? 3 : 4;
if ( this.materialFaceGroup[ ghash ].vertices + vertices > 65535 ) {
hash_map[ mhash ].counter += 1;
ghash = hash_map[ mhash ].hash + "_" + hash_map[ mhash ].counter;
if ( this.materialFaceGroup[ ghash ] == undefined ) {
this.materialFaceGroup[ ghash ] = { 'faces': [], 'material': material, 'vertices': 0 };
this.materialFaceGroup[ hash ].faces.push( f ); }
}
this.materialFaceGroup[ ghash ].faces.push( f );
this.materialFaceGroup[ ghash ].vertices += vertices;
} }
} };
THREE.Mesh.prototype.normalizeUVs = function () { THREE.Mesh.prototype.normalizeUVs = function () {
...@@ -95,4 +119,4 @@ THREE.Mesh.prototype.normalizeUVs = function () { ...@@ -95,4 +119,4 @@ THREE.Mesh.prototype.normalizeUVs = function () {
} }
} };
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