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three.js

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提交 996775b6 编写于 作者: M Mugen87
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Examples: Added simple audio visualizer

上级 12b911c9
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Showing with 213 addition and 17 deletion
examples/files.js
浏览文件 @ 996775b6
......@@ -323,6 +323,7 @@ var files = {
"misc_lights_test",
"misc_lookat",
"misc_sound",
"misc_sound_visualizer",
"misc_ubiquity_test",
"misc_ubiquity_test2",
"misc_uv_tests"
......
examples/misc_sound.html
浏览文件 @ 996775b6
......@@ -6,35 +6,35 @@
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
background-color: #000000;
margin: 0px;
overflow: hidden;
font-family:Monospace;
font-size:13px;
background:#777;
padding:0;
margin:0;
font-weight: bold;
text-align: center;
}
a {
color: #0078ff;
overflow:hidden;
}
#info {
color:#fff;
position: absolute;
top: 0px; left: 0px; width: 50%;
top: 0px;
width: 100%;
color: #ffffff;
padding: 5px;
z-index:100;
font-family:Monospace;
font-size:13px;
text-align:center;
}
a {
color: #ffffff;
}
</style>
</head>
<body>
<div id="info">
<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl 3d sounds example -
music by <a href="http://www.newgrounds.com/audio/listen/358232" target="_blank" rel="noopener">larrylarrybb</a> and
<a href="http://www.newgrounds.com/audio/listen/376737" target="_blank" rel="noopener">skullbeatz</a> and
<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl 3d sounds -
music by <a href="http://www.newgrounds.com/audio/listen/358232" target="_blank" rel="noopener">larrylarrybb</a>,
<a href="http://www.newgrounds.com/audio/listen/376737" target="_blank" rel="noopener">skullbeatz</a> and
<a href="http://opengameart.org/content/project-utopia-seamless-loop" target="_blank" rel="noopener">congusbongus</a><br/><br/>
navigate with WASD / arrows / mouse
</div>
......
examples/misc_sound_visualizer.html 0 → 100644
浏览文件 @ 996775b6
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js misc - sound visualizer</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 {
background:#777;
padding:0;
margin:0;
font-weight: bold;
overflow:hidden;
}
#info {
position: absolute;
top: 0px;
width: 100%;
color: #ffffff;
padding: 5px;
font-family:Monospace;
font-size:13px;
text-align:center;
}
a {
color: #ffffff;
}
</style>
<script src="../build/three.js"></script>
<script src="js/Detector.js"></script>
<script id="vertexShader" type="x-shader/x-vertex">
void main() {
gl_Position = vec4( position, 1.0 );
}
</script>
<script id="fragmentShader" type="x-shader/x-fragment">
uniform sampler2D tAudioData;
uniform vec2 resolution;
void main() {
vec2 uv = gl_FragCoord.xy / resolution.xy;
vec3 backgroundColor = vec3( 0.0 );
vec3 color = vec3( 1.0, 0.0, 0.0 );
float f = texture2D( tAudioData, vec2( uv.x, 0.0 ) ).r; // sample data texture (only the red channel is relevant)
float i = step( uv.y, f );
gl_FragColor = vec4( mix( backgroundColor, color, i ), 1.0 );
}
</script>
</head>
<body>
<div id="container"></div>
<div id="info">
<a href="https://threejs.org" target="_blank">three.js</a> - misc - sound visualizer -
music by <a href="http://www.newgrounds.com/audio/listen/358232" target="_blank">larrylarrybb</a>
</div>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var scene, camera, renderer, analyser, uniforms;
init();
animate();
function init() {
var fftSize = 2048;
//
var container = document.getElementById( 'container' );
//
scene = new THREE.Scene();
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setClearColor( 0x20252f );
renderer.setPixelRatio( window.devicePixelRatio );
container.appendChild( renderer.domElement );
//
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.set( 0, 5, 50 );
//
var audioLoader = new THREE.AudioLoader();
var listener = new THREE.AudioListener();
camera.add( listener );
var audio = new THREE.Audio( listener );
audioLoader.load( 'sounds/358232_j_s_song.mp3', function( buffer ) {
audio.setBuffer( buffer );
audio.setLoop( true );
audio.play();
});
analyser = new THREE.AudioAnalyser( audio, fftSize );
//
var geometry = new THREE.PlaneBufferGeometry( 2, 2 );
//
var size = fftSize / 2;
uniforms = {
tAudioData: { value: new THREE.DataTexture( new Uint8Array( size * 3 ), size, 1, THREE.RGBFormat ) },
resolution: { value: new THREE.Vector2( renderer.domElement.width, renderer.domElement.height ) }
};
var material = new THREE.ShaderMaterial( {
uniforms: uniforms,
vertexShader: document.getElementById( 'vertexShader' ).textContent,
fragmentShader: document.getElementById( 'fragmentShader' ).textContent
} );
//
var mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
//
window.addEventListener( 'resize', onResize, false );
}
function onResize() {
renderer.setSize( window.innerWidth, window.innerHeight );
uniforms.resolution.value.x = renderer.domElement.width;
uniforms.resolution.value.y = renderer.domElement.height;
}
function animate() {
requestAnimationFrame( animate );
render();
}
function render() {
var data = analyser.getFrequencyData();
// transfer all frequency data to our data texture so we can use them in the fragment shader
for ( var i = 0, l = data.length; i < l; i ++ ) {
uniforms.tAudioData.value.image.data[ i * 3 ] = data[ i ];
}
uniforms.tAudioData.value.needsUpdate = true;
renderer.render( scene, camera );
}
</script>
</body>
</html>
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