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162 lines
3.6 KiB
162 lines
3.6 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - effects - peppers ghost</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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background: #777;
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padding: 0;
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margin: 0;
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font-weight: bold;
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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;
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width: 100%;
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color: #ffffff;
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padding: 5px;
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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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z-index: 1000;
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}
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a {
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color: #ffffff;
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}
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#webglmessage a {
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color: #da0
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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> - <a href="https://en.wikipedia.org/wiki/Pepper%27s_ghost">peppers ghost effect</a> demo <br />
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<a href="http://www.instructables.com/id/Reflective-Prism/?ALLSTEPS" target="_blank" rel="noopener">basic instructions for building the reflective prism</a></div>
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<script src="../build/three.js"></script>
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<script src="js/effects/PeppersGhostEffect.js"></script>
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<script src="js/WebGL.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 container;
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var camera, scene, renderer, effect;
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var group;
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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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camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 100000 );
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scene = new THREE.Scene();
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group = new THREE.Group();
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scene.add( group );
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// Cube
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var geometry = new THREE.BoxBufferGeometry( 1, 1, 1 );
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geometry = geometry.toNonIndexed(); // ensure unique vertices for each triangle
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var position = geometry.attributes.position;
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var colors = [];
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var color = new THREE.Color();
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// generate for each side of the cube a different color
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for ( var i = 0; i < position.count; i += 6 ) {
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color.setHex( Math.random() * 0xffffff );
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// first face
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colors.push( color.r, color.g, color.b );
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colors.push( color.r, color.g, color.b );
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colors.push( color.r, color.g, color.b );
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// second face
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colors.push( color.r, color.g, color.b );
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colors.push( color.r, color.g, color.b );
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colors.push( color.r, color.g, color.b );
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}
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geometry.addAttribute( 'color', new THREE.Float32BufferAttribute( colors, 3 ) );
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var material = new THREE.MeshBasicMaterial( { vertexColors: THREE.VertexColors } );
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for ( var i = 0; i < 10; i ++ ) {
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var cube = new THREE.Mesh( geometry, material );
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cube.position.x = Math.random() * 2 - 1;
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cube.position.y = Math.random() * 2 - 1;
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cube.position.z = Math.random() * 2 - 1;
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cube.scale.multiplyScalar( Math.random() + 0.5 );
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group.add( cube );
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}
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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container.appendChild( renderer.domElement );
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effect = new THREE.PeppersGhostEffect( renderer );
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effect.setSize( window.innerWidth, window.innerHeight );
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effect.cameraDistance = 5;
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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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effect.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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}
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function render() {
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group.rotation.y += 0.01;
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effect.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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