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190 lines
4.6 KiB
190 lines
4.6 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - parametric geometries</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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color: #eee;
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font-family:Monospace;
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font-size:13px;
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text-align:center;
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background-color: #000;
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margin: 0px;
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padding: 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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top: 0px; width: 100%;
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padding: 5px;
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}
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a {
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color: #0080ff;
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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="container"></div>
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<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - parametric geometries</div>
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<script src="../build/three.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 src="js/CurveExtras.js"></script>
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<script src="js/ParametricGeometries.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 camera, scene, renderer, stats;
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init();
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animate();
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function init() {
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var container = document.getElementById( 'container' );
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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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scene = new THREE.Scene();
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//
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var ambientLight = new THREE.AmbientLight( 0xcccccc, 0.4 );
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scene.add( ambientLight );
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var pointLight = new THREE.PointLight( 0xffffff, 0.8 );
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camera.add( pointLight );
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scene.add( camera );
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//
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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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var material = new THREE.MeshPhongMaterial( { map: map, side: THREE.DoubleSide } );
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//
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var geometry, object;
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geometry = new THREE.ParametricBufferGeometry( THREE.ParametricGeometries.plane( 100, 100 ), 10, 10 );
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geometry.center();
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object = new THREE.Mesh( geometry, material );
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object.position.set( - 200, 0, 200 );
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scene.add( object );
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geometry = new THREE.ParametricBufferGeometry( THREE.ParametricGeometries.klein, 20, 20 );
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object = new THREE.Mesh( geometry, material );
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object.position.set( 0, 0, 200 );
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object.scale.multiplyScalar( 5 );
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scene.add( object );
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geometry = new THREE.ParametricBufferGeometry( THREE.ParametricGeometries.mobius, 20, 20 );
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object = new THREE.Mesh( geometry, material );
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object.position.set( 200, 0, 200 );
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object.scale.multiplyScalar( 30 );
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scene.add( object );
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//
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var GrannyKnot = new THREE.Curves.GrannyKnot();
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var torus = new THREE.ParametricGeometries.TorusKnotGeometry( 50, 10, 50, 20, 2, 3 );
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var sphere = new THREE.ParametricGeometries.SphereGeometry( 50, 20, 10 );
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var tube = new THREE.ParametricGeometries.TubeGeometry( GrannyKnot, 100, 3, 8, true, false );
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torus = new THREE.BufferGeometry().fromGeometry( torus );
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sphere = new THREE.BufferGeometry().fromGeometry( sphere );
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tube = new THREE.BufferGeometry().fromGeometry( tube );
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object = new THREE.Mesh( torus, material );
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object.position.set( - 200, 0, - 200 );
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scene.add( object );
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object = new THREE.Mesh( sphere, material );
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object.position.set( 0, 0, - 200 );
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scene.add( object );
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object = new THREE.Mesh( tube, material );
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object.position.set( 200, 0, - 200 );
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object.scale.multiplyScalar( 2 );
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scene.add( object );
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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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stats = new Stats();
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container.appendChild( stats.dom );
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window.addEventListener( 'resize', onWindowResize, false );
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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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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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camera.position.x = Math.cos( timer ) * 800;
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camera.position.z = Math.sin( timer ) * 800;
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camera.lookAt( scene.position );
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scene.traverse( function ( object ) {
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if ( object.isMesh === true ) {
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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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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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