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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - geometry - cube</title>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
- <style>
- body {
- margin: 0px;
- background-color: #000000;
- overflow: hidden;
- }
- </style>
- </head>
- <body>
- <script src="../build/three.js"></script>
- <script src="js/controls/OrbitControls.js"></script>
- <script>
- var camera, scene, renderer,controls;
- var mesh;
- init();
- animate();
- function createMesh(){
-
-
- var material;
- var b = 1 / 256;
- var c = 0.5 / 256;
- var d = 2.8 * c;
- var e = 0.5 * c;
- var vertexs = new Float32Array([0, 1, 0, 0.49609375 + b, 0.49609375 + b, 1, 0, 0, 0.9921875 + b, 0.49609375 + b, 0, 0, 1, 0.49609375 + b, 0.9921875 + b, -1, 0, 0, 0 + b, 0.49609375 + b, 0, 0, -1, 0.49609375 + b, 0 + b, 0, -1, 0, 0.9921875 + b, 0 + b, 0, -1, 0, 0.9921875 + b, 0.9921875 + b, 0, -1, 0, 0 + b, 0.9921875 + b, 0, -1, 0, 0 + b, 0 + b, d, 1 - d, -d, 0.5 + c, 0.5 - c, d, 1 - d, d, 0.5 + c, 0.5 + c, -d, 1 - d, d, 0.5 - c, 0.5 + c, -d, 1 - d, -d, 0.5 - c, 0.5 - c, -d, 0, -1 + d, 0.5 - c, 0 + b + c, d, 0, -1 + d, 0.5 + c, 0 + b + c, 1 - d, 0, -d, 0.9921875 + b - c, 0.5 - c, 1 - d, 0, d, 0.9921875 + b - c, 0.5 + c, d, 0, 1 - d, 0.5 + c, 0.9921875 + b - c, -d, 0, 1 - d, 0.5 - c, 0.9921875 + b - c, -1 + d, 0, d, 0 + b + c, 0.5 + c, -1 + d, 0, -d, 0 + b + c, 0.5 - c, 1, 0, 0, 0.9921875 + b - e, 0.49609375 + b, 0, 0, 1, 0.49609375 + b, 0.9921875 + b - e, -1, 0, 0, 0 + b + e, 0.49609375 + b, 0, 0, -1, 0.49609375 + b, 0 + b + e, 0, 1, 0, 0.49609375 + b - e, 0.49609375 + b, 0, 1, 0, 0.49609375 + b, 0.49609375 + b - e, 0, 1, 0, 0.49609375 + b + e, 0.49609375 + b, 0, 1, 0, 0.49609375 + b, 0.49609375 + b + e]);
- var indexes = new Uint16Array([2, 1, 6, 3, 2, 7, 8, 4, 3, 4, 5, 1, 9, 14, 15, 17, 10, 16, 18, 19, 11, 20, 13, 12, 28, 12, 13, 13, 24, 28, 28, 24, 9, 9, 24, 14, 25, 9, 15, 25, 15, 21, 10, 25, 21, 10, 21, 16, 22, 26, 10, 22, 10, 17, 18, 11, 26, 22, 18, 26, 19, 23, 27, 19, 27, 11, 23, 20, 27, 27, 20, 12]);
-
- var geometry = new THREE.BufferGeometry();
- var vertexBuffer = new THREE.InterleavedBuffer(new Float32Array(vertexs),5);
- geometry.addAttribute( 'position', new THREE.InterleavedBufferAttribute( vertexBuffer, 3,0 ) );
- geometry.addAttribute( 'uv', new THREE.InterleavedBufferAttribute( vertexBuffer, 2 ,3) );
- geometry.setIndex(new THREE.Uint16BufferAttribute(new Uint16Array(indexes), 3))
- var mesh = new THREE.Mesh( geometry, new THREE.MeshBasicMaterial( { side:2 } ));
- return mesh;
- }
- function init() {
- camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, .1, 2000000 );
- camera.position.z = 4;
- scene = new THREE.Scene();
- /*
- var texture = new THREE.TextureLoader().load( 'textures/crate.gif' );
- var geometry = new THREE.BoxBufferGeometry( 200, 200, 200 );
- var material = new THREE.MeshBasicMaterial( { map: texture } );
- mesh = new THREE.Mesh( geometry, material );
- */
- mesh = createMesh();
- scene.add( mesh );
- renderer = new THREE.WebGLRenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- document.body.appendChild( renderer.domElement );
- //
- window.addEventListener( 'resize', onWindowResize, false );
- controls = new THREE.OrbitControls( camera, renderer.domElement );
- controls.target.set( 0, 0, 0 );
- controls.update();
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function animate() {
- requestAnimationFrame( animate );
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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