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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <title>three.js misc - sound visualizer</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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+
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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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+ }
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+
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+ a {
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+ color: #ffffff;
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+ }
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+ </style>
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+
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+ <script src="../build/three.js"></script>
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+ <script src="js/Detector.js"></script>
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+
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+ <script id="vertexShader" type="x-shader/x-vertex">
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+
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+ void main() {
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+
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+ gl_Position = vec4( position, 1.0 );
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+
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+ }
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+
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+ </script>
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+
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+ <script id="fragmentShader" type="x-shader/x-fragment">
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+
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+ uniform sampler2D tAudioData;
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+ uniform vec2 resolution;
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+
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+ void main() {
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+
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+ vec2 uv = gl_FragCoord.xy / resolution.xy;
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+
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+ vec3 backgroundColor = vec3( 0.0 );
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+ vec3 color = vec3( 1.0, 0.0, 0.0 );
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+
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+ float f = texture2D( tAudioData, vec2( uv.x, 0.0 ) ).r; // sample data texture (only the red channel is relevant)
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+ float i = step( uv.y, f );
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+
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+ gl_FragColor = vec4( mix( backgroundColor, color, i ), 1.0 );
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+
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+ }
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+
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+ </script>
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+
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+ </head>
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+<body>
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+
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+ <div id="container"></div>
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+ <div id="info">
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+ <a href="https://threejs.org" target="_blank">three.js</a> - misc - sound visualizer -
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+ music by <a href="http://www.newgrounds.com/audio/listen/358232" target="_blank">larrylarrybb</a>
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+ </div>
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+
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+ <script>
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+
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+ if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
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+
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+ var scene, camera, renderer, analyser, uniforms;
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+
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+ init();
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+ animate();
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+
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+ function init() {
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+
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+ var fftSize = 2048;
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+
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+ //
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+
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+ var container = document.getElementById( 'container' );
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+
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+ //
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+
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+ scene = new THREE.Scene();
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+
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+ //
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+
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+ renderer = new THREE.WebGLRenderer( { antialias: true } );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ renderer.setClearColor( 0x20252f );
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+ renderer.setPixelRatio( window.devicePixelRatio );
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+ container.appendChild( renderer.domElement );
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+
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+ //
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+
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+ camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 1000 );
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+ camera.position.set( 0, 5, 50 );
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+
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+ //
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+
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+ var audioLoader = new THREE.AudioLoader();
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+
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+ var listener = new THREE.AudioListener();
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+ camera.add( listener );
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+
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+ var audio = new THREE.Audio( listener );
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+ audioLoader.load( 'sounds/358232_j_s_song.mp3', function( buffer ) {
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+ audio.setBuffer( buffer );
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+ audio.setLoop( true );
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+ audio.play();
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+ });
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+
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+ analyser = new THREE.AudioAnalyser( audio, fftSize );
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+
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+ //
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+
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+ var geometry = new THREE.PlaneBufferGeometry( 2, 2 );
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+
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+ //
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+
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+ var size = fftSize / 2;
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+
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+ uniforms = {
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+ tAudioData: { value: new THREE.DataTexture( new Uint8Array( size * 3 ), size, 1, THREE.RGBFormat ) },
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+ resolution: { value: new THREE.Vector2( renderer.domElement.width, renderer.domElement.height ) }
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+ };
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+
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+ var material = new THREE.ShaderMaterial( {
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+
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+ uniforms: uniforms,
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+ vertexShader: document.getElementById( 'vertexShader' ).textContent,
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+ fragmentShader: document.getElementById( 'fragmentShader' ).textContent
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+
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+ } );
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+
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+ //
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+
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+ var mesh = new THREE.Mesh( geometry, material );
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+ scene.add( mesh );
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+
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+ //
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+
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+ window.addEventListener( 'resize', onResize, false );
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+
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+ }
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+
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+ function onResize() {
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+
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ uniforms.resolution.value.x = renderer.domElement.width;
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+ uniforms.resolution.value.y = renderer.domElement.height;
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+
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+ }
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+
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+ function animate() {
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+
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+ requestAnimationFrame( animate );
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+
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+ render();
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+
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+ }
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+
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+ function render() {
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+
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+ var data = analyser.getFrequencyData();
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+
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+ // transfer all frequency data to our data texture so we can use them in the fragment shader
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+
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+ for ( var i = 0, l = data.length; i < l; i ++ ) {
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+
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+ uniforms.tAudioData.value.image.data[ i * 3 ] = data[ i ];
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+
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+ }
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+
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+ uniforms.tAudioData.value.needsUpdate = true;
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+
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+ renderer.render( scene, camera );
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+
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+ }
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+
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+ </script>
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+
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+</body>
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+</html>
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Mugen87