mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
464 lines
11 KiB
HTML
464 lines
11 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<title>three.js webgl - geometry - Subdivisions with Catmull-Clark</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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<style>
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body {
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font-family: Monospace;
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background-color: #f0f0f0;
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margin: 0px;
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overflow: hidden;
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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.js"></script>
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<script src="js/RequestAnimationFrame.js"></script>
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<script src="js/Stats.js"></script>
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<script src="../src/core/Geometry.js"></script>
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<script src="../src/extras/geometries/CubeGeometry.js"></script>
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<script src="../src/extras/geometries/CylinderGeometry.js"></script>
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<script src="../src/extras/geometries/TorusGeometry.js"></script>
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<script src="../src/extras/modifiers/SubdivisionModifier.js"></script>
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<script src="fonts/helvetiker_regular.typeface.js"></script>
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<script>
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var container, stats;
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var camera, scene, renderer;
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var cube, plane;
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var targetYRotation = targetXRotation = 0;
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var targetYRotationOnMouseDown = targetXRotationOnMouseDown = 0;
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var mouseX = 0, mouseY = 0;
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var mouseXOnMouseDown = 0;
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var windowHalfX = window.innerWidth / 2;
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var windowHalfY = window.innerHeight / 2;
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// Create new object by parameters
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var createSomething = function( klass, args ) {
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var F = function( klass, args ) {
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return klass.apply( this, args );
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}
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F.prototype = klass.prototype;
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return new F( klass, args );
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};
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// Cube
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var materials = [];
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for ( var i = 0; i < 6; i ++ ) {
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materials.push( [ new THREE.MeshBasicMaterial( { color: Math.random() * 0xffffff, wireframe: false } ) ] );
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}
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var geometriesParams = [
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{type: 'CubeGeometry', args: [ 200, 200, 200, 2, 2, 2, materials ] },
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{type: 'TorusGeometry', args: [ 100, 60, 4, 8, Math.PI*2 ] },
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{type: 'TorusKnotGeometry', args: [ ], scale:0.25, meshScale:4 },
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{type: 'SphereGeometry', args: [ 100, 3, 3 ], meshScale:2 },
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{type: 'IcosahedronGeometry', args: [ 1 ], scale: 100, meshScale:2 },
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{type: 'CylinderGeometry', args: [ 25, 75, 200, 8, 3 ]} ,
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{type: 'OctahedronGeometry', args: [200, 0], meshScale:2 },
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{type: 'LatheGeometry', args: [ [
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new THREE.Vector3(0,0,0),
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new THREE.Vector3(0,50,50),
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new THREE.Vector3(0,10,100),
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new THREE.Vector3(0,50,150),
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new THREE.Vector3(0,0,200) ] ]},
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{type: 'TextGeometry', args: ['&', {
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size: 200,
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height: 50,
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curveSegments: 1,
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font: "helvetiker"
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}]},
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{type: 'PlaneGeometry', args: [ 200, 200, 4, 4 ] }
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];
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if (location.protocol !== "file:") {
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var loader = new THREE.JSONLoader();
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loader.load( 'obj/WaltHeadLo.js', function ( geometry ) {
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geometriesParams.push({type: 'WaltHead', args: [ ], meshScale: 6 });
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THREE.WaltHead = function() {
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return THREE.GeometryUtils.clone(geometry);
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};
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updateInfo()
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});
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var loader2 = new THREE.JSONLoader();
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loader2.load( 'obj/Suzanne.js', function ( geometry ) {
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geometriesParams.push({type: 'Suzanne', args: [ ], scale: 100, meshScale:2 });
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THREE.Suzanne = function() {
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return THREE.GeometryUtils.clone(geometry);
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};
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updateInfo()
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} );
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}
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var info;
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var subdivisions = 2;
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var geometryIndex = 0;
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// start scene
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init();
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animate();
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function nextSubdivision( x ) {
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subdivisions = Math.max( 0, subdivisions + x );
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addStuff();
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}
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function nextGeometry() {
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geometryIndex ++;
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if ( geometryIndex > geometriesParams.length - 1 ) {
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geometryIndex = 0;
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}
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addStuff();
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}
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function switchGeometry(i) {
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geometryIndex = i;
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addStuff();
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}
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function updateInfo() {
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var params = geometriesParams[ geometryIndex ];
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var dropdown = '<select id="dropdown" onchange="switchGeometry(this.value)">';
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for ( i = 0; i < geometriesParams.length; i ++ ) {
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dropdown += '<option value="' + i + '"';
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dropdown += (geometryIndex == i) ? ' selected' : '';
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dropdown += '>' + geometriesParams[i].type + '</option>';
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}
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dropdown += '</select>';
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info.innerHTML = 'Drag to spin THREE.' + params.type +
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'<br/><br/>Subdivisions: ' + subdivisions +
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' <a href="#" onclick="nextSubdivision(1); return false;">more</a>/<a href="#" onclick="nextSubdivision(-1); return false;">less</a>' +
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'<br>Geometry: ' + dropdown + ' <a href="#" onclick="nextGeometry();return false;">next</a>' +
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'<br/><br>Vertices count: before ' + geometry.vertices.length + ' after ' + smooth.vertices.length +
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'<br>Face count: before ' + geometry.faces.length + ' after ' + smooth.faces.length
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; //+ params.args;
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}
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function addStuff() {
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if ( cube ) {
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scene.remove( group );
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scene.remove( cube );
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}
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var modifier = new THREE.SubdivisionModifier( subdivisions );
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var params = geometriesParams[ geometryIndex ];
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geometry = createSomething( THREE[ params.type ], params.args );
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// Scale Geometry
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if (params.scale) {
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geometry.applyMatrix( new THREE.Matrix4().setScale( params.scale, params.scale, params.scale ) );
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}
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// Cloning original geometry for debuging
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smooth = THREE.GeometryUtils.clone( geometry );
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// mergeVertices(); is run in case of duplicated vertices
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smooth.mergeVertices();
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modifier.modify( smooth );
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updateInfo();
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var faceABCD = "abcd";
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var color, f, p, n, vertexIndex;
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for ( i = 0; i < smooth.faces.length; i ++ ) {
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f = smooth.faces[ i ];
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n = ( f instanceof THREE.Face3 ) ? 3 : 4;
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for( var j = 0; j < n; j++ ) {
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vertexIndex = f[ faceABCD.charAt( j ) ];
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p = smooth.vertices[ vertexIndex ].position;
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color = new THREE.Color( 0xffffff );
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color.setHSV( ( p.y ) / 200 + 0.5, 1.0, 1.0 );
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f.vertexColors[ j ] = color;
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}
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}
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group = new THREE.Object3D();
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group.add( new THREE.Mesh( geometry, new THREE.MeshBasicMaterial( { color: 0xfefefe, wireframe: true, opacity: 0.5 } ) ) );
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scene.add( group );
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var debugNewPoints = false;
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var debugOldPoints = false;
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// Debug new Points
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if (debugNewPoints) {
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var PI2 = Math.PI * 2;
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var program = function ( context ) {
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context.beginPath();
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context.arc( 0, 0, 1, 0, PI2, true );
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context.closePath();
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context.fill();
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}
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for ( var i = 0; i < smooth.vertices.length; i++ ) {
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particle = new THREE.Particle( new THREE.ParticleCanvasMaterial( { color: Math.random() * 0x808008 + 0x808080, program: program } ) );
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particle.position = smooth.vertices[i].position;
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var pos = smooth.vertices.position
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particle.scale.x = particle.scale.y = 5;
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group.add( particle );
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}
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}
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//Debug original points
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if (debugOldPoints) {
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var drawText = function(i) {
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return function ( context ) {
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context.beginPath();
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context.scale(0.1,-0.1);
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context.fillText(i, 0,0);
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};
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}
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for ( var i = 0; i < geometry.vertices.length; i++ ) {
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particle = new THREE.Particle( new THREE.ParticleCanvasMaterial( { color: Math.random() * 0x808008 + 0x808080, program: drawText(i) } ) );
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particle.position = smooth.vertices[i].position;
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var pos = geometry.vertices.position
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particle.scale.x = particle.scale.y = 30;
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group.add( particle );
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}
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}
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var meshmaterials = [
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new THREE.MeshLambertMaterial( { color: 0xffffff, shading: THREE.FlatShading, vertexColors: THREE.VertexColors } ),
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new THREE.MeshBasicMaterial( { color: 0x405040, wireframe: true, opacity: 0.8, transparent: true } )
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];
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cube = THREE.SceneUtils.createMultiMaterialObject( smooth, meshmaterials );
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var meshScale = params.meshScale ? params.meshScale : 1;
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cube.scale.x = meshScale;
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cube.scale.y = meshScale;
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cube.scale.z = meshScale;
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scene.add( cube );
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group.scale.copy( cube.scale );
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}
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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info = document.createElement( 'div' );
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info.style.position = 'absolute';
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info.style.top = '10px';
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info.style.width = '100%';
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info.style.textAlign = 'center';
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info.innerHTML = 'Drag to spin the geometry ';
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container.appendChild( info );
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camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.z = 500;
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scene = new THREE.Scene();
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var light = new THREE.PointLight( 0xffffff, 1.5 );
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light.position.set( 1000, 1000, 2000 );
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scene.add( light );
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addStuff();
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renderer = new THREE.WebGLRenderer( { antialias: true } ); // WebGLRenderer CanvasRenderer
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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container.appendChild( stats.domElement );
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document.addEventListener( 'mousedown', onDocumentMouseDown, false );
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document.addEventListener( 'touchstart', onDocumentTouchStart, false );
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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}
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//
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function onDocumentMouseDown( event ) {
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//event.preventDefault();
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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document.addEventListener( 'mouseup', onDocumentMouseUp, false );
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document.addEventListener( 'mouseout', onDocumentMouseOut, false );
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mouseXOnMouseDown = event.clientX - windowHalfX;
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mouseYOnMouseDown = event.clientY - windowHalfY;
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targetYRotationOnMouseDown = targetYRotation;
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targetXRotationOnMouseDown = targetXRotation;
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}
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function onDocumentMouseMove( event ) {
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mouseX = event.clientX - windowHalfX;
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mouseY = event.clientY - windowHalfY;
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targetYRotation = targetYRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
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targetXRotation = targetXRotationOnMouseDown + ( mouseY - mouseYOnMouseDown ) * 0.02;
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}
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function onDocumentMouseUp( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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}
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function onDocumentMouseOut( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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}
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function onDocumentTouchStart( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
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}
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}
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function onDocumentTouchMove( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseX = event.touches[ 0 ].pageX - windowHalfX;
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targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
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}
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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render();
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stats.update();
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}
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function render() {
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group.rotation.x = cube.rotation.x += ( targetXRotation - cube.rotation.x ) * 0.05;
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group.rotation.y = cube.rotation.y += ( targetYRotation - cube.rotation.y ) * 0.05;
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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