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@@ -11,11 +11,25 @@
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margin: 0px;
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overflow: hidden;
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}
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+ #info {
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+ position: absolute;
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+ color: #fff;
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+ top: 0px;
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+ width: 100%;
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+ padding: 5px;
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+ text-align:center;
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+ }
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+ a {
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+ color: #fff;
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+ }
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</style>
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</head>
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<body>
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+ <div id="info"><a href="http://threejs.org" target="_blank">three.js</a> - ConvexGeometry</div>
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+
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<script src="../build/three.js"></script>
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+ <script src="js/controls/OrbitControls.js"></script>
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<script src="js/geometries/ConvexGeometry.js"></script>
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<script src="js/Detector.js"></script>
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<script src="js/libs/stats.min.js"></script>
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@@ -24,100 +38,87 @@
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if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
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- var container, stats;
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-
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- var camera, scene, renderer;
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+ var group, camera, scene, renderer;
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init();
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animate();
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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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-
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- camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
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- camera.position.y = 400;
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-
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scene = new THREE.Scene();
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- var light, object, materials;
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+ renderer = new THREE.WebGLRenderer( { antialias: true } );
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+ renderer.setPixelRatio( window.devicePixelRatio );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ document.body.appendChild( renderer.domElement );
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- scene.add( new THREE.AmbientLight( 0x404040 ) );
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+ // camera
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+ camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 1000 );
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+ camera.position.set( 15, 20, 30 );
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+ scene.add( camera );
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- light = new THREE.DirectionalLight( 0xffffff );
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- light.position.set( 0, 1, 0 );
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- scene.add( light );
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+ // controls
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+ controls = new THREE.OrbitControls( camera, renderer.domElement );
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+ controls.minDistance = 20;
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+ controls.maxDistance = 50;
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+ controls.maxPolarAngle = Math.PI / 2;
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- var map = new THREE.TextureLoader().load( 'textures/UV_Grid_Sm.jpg' );
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- map.wrapS = map.wrapT = THREE.RepeatWrapping;
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- map.anisotropy = 16;
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+ scene.add( new THREE.AmbientLight( 0x222222 ) );
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- materials = [
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- new THREE.MeshLambertMaterial( { map: map } ),
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- new THREE.MeshBasicMaterial( { color: 0xffffff, wireframe: true, transparent: true, opacity: 0.1 } )
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- ];
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+ var light = new THREE.PointLight( 0xffffff, 1 );
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+ camera.add( light );
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+ scene.add( new THREE.AxisHelper( 20 ) );
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- // tetrahedron
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+ //
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- var points = [
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- new THREE.Vector3( 100, 0, 0 ),
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- new THREE.Vector3( 0, 100, 0 ),
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- new THREE.Vector3( 0, 0, 100 ),
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- new THREE.Vector3( 0, 0, 0 )
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- ];
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+ var loader = new THREE.TextureLoader();
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+ var texture = loader.load( 'textures/sprites/disc.png' );
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- object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
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- object.position.set( 0, 0, 0 );
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- scene.add( object );
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+ group = new THREE.Group();
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+ scene.add( group );
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- // cube
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+ // points
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- var points = [
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- new THREE.Vector3( 50, 50, 50 ),
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- new THREE.Vector3( 50, 50, -50 ),
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- new THREE.Vector3( -50, 50, -50 ),
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- new THREE.Vector3( -50, 50, 50 ),
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- new THREE.Vector3( 50, -50, 50 ),
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- new THREE.Vector3( 50, -50, -50 ),
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- new THREE.Vector3( -50, -50, -50 ),
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- new THREE.Vector3( -50, -50, 50 ),
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- ];
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+ var pointsGeometry = new THREE.DodecahedronGeometry( 10 );
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- object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
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- object.position.set( -200, 0, -200 );
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- scene.add( object );
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+ for ( var i = 0; i < pointsGeometry.vertices.length; i ++ ) {
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- // random convex
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+ //pointsGeometry.vertices[ i ].add( randomPoint().multiplyScalar( 2 ) ); // wiggle the points
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- points = [];
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- for ( var i = 0; i < 30; i ++ ) {
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+ }
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- points.push( randomPointInSphere( 50 ) );
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+ var pointsMaterial = new THREE.PointsMaterial( {
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- }
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+ color: 0x0080ff,
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+ map: texture,
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+ size: 1,
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+ alphaTest: 0.5
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- object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
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- object.position.set( -200, 0, 200 );
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- scene.add( object );
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+ } );
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+ var points = new THREE.Points( pointsGeometry, pointsMaterial );
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+ group.add( points );
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- object = new THREE.AxisHelper( 50 );
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- object.position.set( 200, 0, -200 );
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- scene.add( object );
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+ // convex hull
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- object = new THREE.ArrowHelper( new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 0, 0 ), 50 );
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- object.position.set( 200, 0, 400 );
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- scene.add( object );
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+ var meshMaterial = new THREE.MeshLambertMaterial( {
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+ color: 0xffffff,
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+ opacity: 0.5,
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+ transparent: true
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+ } );
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- renderer = new THREE.WebGLRenderer( { antialias: true } );
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- renderer.setPixelRatio( window.devicePixelRatio );
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- renderer.setSize( window.innerWidth, window.innerHeight );
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- container.appendChild( renderer.domElement );
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+ var meshGeometry = new THREE.ConvexGeometry( pointsGeometry.vertices );
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- stats = new Stats();
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- container.appendChild( stats.dom );
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+ mesh = new THREE.Mesh( meshGeometry, meshMaterial );
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+ mesh.material.side = THREE.BackSide; // back faces
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+ mesh.renderOrder = 0;
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+ group.add( mesh );
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+
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+ mesh = new THREE.Mesh( meshGeometry, meshMaterial.clone() );
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+ mesh.material.side = THREE.FrontSide; // front faces
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+ mesh.renderOrder = 1;
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+ group.add( mesh );
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//
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@@ -125,23 +126,18 @@
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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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+ function randomPoint() {
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- renderer.setSize( window.innerWidth, window.innerHeight );
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+ return new THREE.Vector3( THREE.Math.randFloat( - 1, 1 ), THREE.Math.randFloat( - 1, 1 ), THREE.Math.randFloat( - 1, 1 ) );
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}
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+ function onWindowResize() {
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- function randomPointInSphere( radius ) {
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+ camera.aspect = window.innerWidth / window.innerHeight;
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+ camera.updateProjectionMatrix();
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- return new THREE.Vector3(
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- ( Math.random() - 0.5 ) * 2 * radius,
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- ( Math.random() - 0.5 ) * 2 * radius,
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- ( Math.random() - 0.5 ) * 2 * radius
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- );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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}
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@@ -149,29 +145,14 @@
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requestAnimationFrame( animate );
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+ group.rotation.y += 0.005;
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+
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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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- var timer = Date.now() * 0.0001;
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-
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- camera.position.x = Math.cos( timer ) * 800;
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- camera.position.z = Math.sin( timer ) * 800;
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-
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- camera.lookAt( scene.position );
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-
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- for ( var i = 0, l = scene.children.length; i < l; i ++ ) {
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-
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- var object = scene.children[ i ];
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-
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- object.rotation.x = timer * 5;
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- object.rotation.y = timer * 2.5;
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-
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- }
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-
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renderer.render( scene, camera );
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}
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WestLangley