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webaudio_sandbox.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webaudio - sandbox</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<audio id="song" preload="auto" style="display: none">
<source src="sounds/358232_j_s_song.ogg" type="audio/ogg">
<source src="sounds/358232_j_s_song.mp3" type="audio/mpeg">
</audio>
<audio id="skullbeatz" preload="auto" style="display: none">
<source src="sounds/376737_Skullbeatz___Bad_Cat_Maste.ogg" type="audio/ogg">
<source src="sounds/376737_Skullbeatz___Bad_Cat_Maste.mp3" type="audio/mpeg">
</audio>
<audio id="utopia" loop preload="auto" style="display: none">
<source src="sounds/Project_Utopia.ogg" type="audio/ogg">
<source src="sounds/Project_Utopia.mp3" type="audio/mpeg">
</audio>
<div id="overlay">
<button id="startButton">Play</button>
</div>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webaudio - sandbox<br/>
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>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
import { FirstPersonControls } from 'three/addons/controls/FirstPersonControls.js';
let camera, controls, scene, renderer, light;
let material1, material2, material3;
let analyser1, analyser2, analyser3;
const clock = new THREE.Clock();
const startButton = document.getElementById( 'startButton' );
startButton.addEventListener( 'click', init );
function init() {
const overlay = document.getElementById( 'overlay' );
overlay.remove();
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 10000 );
camera.position.set( 0, 25, 0 );
const listener = new THREE.AudioListener();
camera.add( listener );
scene = new THREE.Scene();
scene.fog = new THREE.FogExp2( 0x000000, 0.0025 );
light = new THREE.DirectionalLight( 0xffffff, 3 );
light.position.set( 0, 0.5, 1 ).normalize();
scene.add( light );
const sphere = new THREE.SphereGeometry( 20, 32, 16 );
material1 = new THREE.MeshPhongMaterial( { color: 0xffaa00, flatShading: true, shininess: 0 } );
material2 = new THREE.MeshPhongMaterial( { color: 0xff2200, flatShading: true, shininess: 0 } );
material3 = new THREE.MeshPhongMaterial( { color: 0x6622aa, flatShading: true, shininess: 0 } );
// sound spheres
const mesh1 = new THREE.Mesh( sphere, material1 );
mesh1.position.set( - 250, 30, 0 );
scene.add( mesh1 );
const sound1 = new THREE.PositionalAudio( listener );
const songElement = document.getElementById( 'song' );
sound1.setMediaElementSource( songElement );
sound1.setRefDistance( 20 );
songElement.play();
mesh1.add( sound1 );
//
const mesh2 = new THREE.Mesh( sphere, material2 );
mesh2.position.set( 250, 30, 0 );
scene.add( mesh2 );
const sound2 = new THREE.PositionalAudio( listener );
const skullbeatzElement = document.getElementById( 'skullbeatz' );
sound2.setMediaElementSource( skullbeatzElement );
sound2.setRefDistance( 20 );
skullbeatzElement.play();
mesh2.add( sound2 );
//
const mesh3 = new THREE.Mesh( sphere, material3 );
mesh3.position.set( 0, 30, - 250 );
scene.add( mesh3 );
const sound3 = new THREE.PositionalAudio( listener );
const oscillator = listener.context.createOscillator();
oscillator.type = 'sine';
oscillator.frequency.setValueAtTime( 144, sound3.context.currentTime );
oscillator.start( 0 );
sound3.setNodeSource( oscillator );
sound3.setRefDistance( 20 );
sound3.setVolume( 0.5 );
mesh3.add( sound3 );
// analysers
analyser1 = new THREE.AudioAnalyser( sound1, 32 );
analyser2 = new THREE.AudioAnalyser( sound2, 32 );
analyser3 = new THREE.AudioAnalyser( sound3, 32 );
// global ambient audio
const sound4 = new THREE.Audio( listener );
const utopiaElement = document.getElementById( 'utopia' );
sound4.setMediaElementSource( utopiaElement );
sound4.setVolume( 0.5 );
utopiaElement.play();
// ground
const helper = new THREE.GridHelper( 1000, 10, 0x444444, 0x444444 );
helper.position.y = 0.1;
scene.add( helper );
//
const SoundControls = function () {
this.master = listener.getMasterVolume();
this.firstSphere = sound1.getVolume();
this.secondSphere = sound2.getVolume();
this.thirdSphere = sound3.getVolume();
this.Ambient = sound4.getVolume();
};
const GeneratorControls = function () {
this.frequency = oscillator.frequency.value;
this.wavetype = oscillator.type;
};
const gui = new GUI();
const soundControls = new SoundControls();
const generatorControls = new GeneratorControls();
const volumeFolder = gui.addFolder( 'sound volume' );
const generatorFolder = gui.addFolder( 'sound generator' );
volumeFolder.add( soundControls, 'master' ).min( 0.0 ).max( 1.0 ).step( 0.01 ).onChange( function () {
listener.setMasterVolume( soundControls.master );
} );
volumeFolder.add( soundControls, 'firstSphere' ).min( 0.0 ).max( 1.0 ).step( 0.01 ).onChange( function () {
sound1.setVolume( soundControls.firstSphere );
} );
volumeFolder.add( soundControls, 'secondSphere' ).min( 0.0 ).max( 1.0 ).step( 0.01 ).onChange( function () {
sound2.setVolume( soundControls.secondSphere );
} );
volumeFolder.add( soundControls, 'thirdSphere' ).min( 0.0 ).max( 1.0 ).step( 0.01 ).onChange( function () {
sound3.setVolume( soundControls.thirdSphere );
} );
volumeFolder.add( soundControls, 'Ambient' ).min( 0.0 ).max( 1.0 ).step( 0.01 ).onChange( function () {
sound4.setVolume( soundControls.Ambient );
} );
volumeFolder.open();
generatorFolder.add( generatorControls, 'frequency' ).min( 50.0 ).max( 5000.0 ).step( 1.0 ).onChange( function () {
oscillator.frequency.setValueAtTime( generatorControls.frequency, listener.context.currentTime );
} );
generatorFolder.add( generatorControls, 'wavetype', [ 'sine', 'square', 'sawtooth', 'triangle' ] ).onChange( function () {
oscillator.type = generatorControls.wavetype;
} );
generatorFolder.open();
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setAnimationLoop( animate );
document.body.appendChild( renderer.domElement );
//
controls = new FirstPersonControls( camera, renderer.domElement );
controls.movementSpeed = 70;
controls.lookSpeed = 0.05;
controls.lookVertical = false;
//
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
controls.handleResize();
}
function animate() {
const delta = clock.getDelta();
controls.update( delta );
material1.emissive.b = analyser1.getAverageFrequency() / 256;
material2.emissive.b = analyser2.getAverageFrequency() / 256;
material3.emissive.b = analyser3.getAverageFrequency() / 256;
renderer.render( scene, camera );
}
</script>
</body>
</html>