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177 lines
3.9 KiB
177 lines
3.9 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - convex geometry</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: #000;
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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" rel="noopener">three.js</a> - ConvexGeometry</div>
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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/QuickHull.js"></script>
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<script src="js/geometries/ConvexGeometry.js"></script>
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<script src="js/WebGL.js"></script>
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<script src="js/libs/stats.min.js"></script>
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<script>
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if ( WEBGL.isWebGLAvailable() === false ) {
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document.body.appendChild( WEBGL.getWebGLErrorMessage() );
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}
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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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scene = new THREE.Scene();
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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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// 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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// controls
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var 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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scene.add( new THREE.AmbientLight( 0x222222 ) );
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// light
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var light = new THREE.PointLight( 0xffffff, 1 );
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camera.add( light );
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// helper
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scene.add( new THREE.AxesHelper( 20 ) );
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// textures
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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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group = new THREE.Group();
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scene.add( group );
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// points
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var vertices = new THREE.DodecahedronGeometry( 10 ).vertices;
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for ( var i = 0; i < vertices.length; i ++ ) {
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//vertices[ i ].add( randomPoint().multiplyScalar( 2 ) ); // wiggle the points
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}
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var pointsMaterial = new THREE.PointsMaterial( {
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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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} );
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var pointsGeometry = new THREE.BufferGeometry().setFromPoints( vertices );
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var points = new THREE.Points( pointsGeometry, pointsMaterial );
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group.add( points );
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// convex hull
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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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var meshGeometry = new THREE.ConvexBufferGeometry( vertices );
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var 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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var 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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window.addEventListener( 'resize', onWindowResize, false );
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}
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// function randomPoint() {
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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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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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function animate() {
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requestAnimationFrame( animate );
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group.rotation.y += 0.005;
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render();
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}
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function render() {
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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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