examples/webaudio_orientation.html

<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webaudio - orientation</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;
				overflow:hidden;
				font-family: Monospace;
			}

			#info {
				position: absolute;
				z-index: 2;
				top: 0px;
				width: 100%;
				color: #ffffff;
				padding: 5px;

				font-size:13px;
				text-align:center;
				font-weight: bold;
			}

			a {
				color: #ffffff;
			}

			#overlay {
				position: absolute;
				z-index: 1;
				top: 0;
				left: 0;
				width: 100%;
				height:100%;
				display: flex;
				align-items: center;
				justify-content: center;
				opacity: 1;
				background-color: #000000;
				color: #ffffff;
			}

			#overlay > div {
				text-align: center;
			}

			#overlay > div > button {
				height: 20px;
				width: 100px;
				background: transparent;
				color: #ffffff;
				outline: 1px solid #ffffff;
				border: 0px;
				cursor: pointer;
			}

			#overlay > div > p {
				color: #777777;
				font-size: 12px;
			}

		</style>

		<script src="../build/three.js"></script>
		<script src="js/WebGL.js"></script>
		<script src="js/controls/OrbitControls.js"></script>
		<script src="js/loaders/GLTFLoader.js"></script>

	</head>
<body>

	<audio loop id="music" 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>

	<div id="overlay">
		<div>
			<button id="startButton">Click to Play</button>
			<p>Automatic audio playback requires a user interaction.</p>
		</div>
	</div>
	<div id="container"></div>
	<div id="info">
		<a href="https://threejs.org" target="_blank" rel="noopener noreferrer">three.js</a> webaudio orientation |
		music by <a href="http://www.newgrounds.com/audio/listen/376737" target="_blank" rel="noopener noreferrer">skullbeatz</a>
	</div>

	<script>

	if ( WEBGL.isWebGLAvailable() === false ) {

		document.body.appendChild( WEBGL.getWebGLErrorMessage() );

	}

	var scene, camera, renderer;

	var startButton = document.getElementById( 'startButton' );
	startButton.addEventListener( 'click', init );

	function init() {

		var overlay = document.getElementById( 'overlay' );
		overlay.remove();

		var container = document.getElementById( 'container' );

		//

		camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 100 );
		camera.position.set( 0, 1, 2 );

		var reflectionCube = new THREE.CubeTextureLoader()
			.setPath( 'textures/cube/SwedishRoyalCastle/' )
			.load( [ 'px.jpg', 'nx.jpg', 'py.jpg', 'ny.jpg', 'pz.jpg', 'nz.jpg' ] );
		reflectionCube.format = THREE.RGBFormat;

		scene = new THREE.Scene();
		scene.background = new THREE.Color( 0xa0a0a0 );
		scene.fog = new THREE.Fog( 0xa0a0a0, 2, 20 );

		//

		var hemiLight = new THREE.HemisphereLight( 0xffffff, 0x444444 );
		hemiLight.position.set( 0, 20, 0 );
		scene.add( hemiLight );

		var dirLight = new THREE.DirectionalLight( 0xffffff );
		dirLight.position.set( 5, 5, 0 );
		dirLight.castShadow = true;
		dirLight.shadow.camera.top = 1;
		dirLight.shadow.camera.bottom = - 1;
		dirLight.shadow.camera.left = - 1;
		dirLight.shadow.camera.right = 1;
		dirLight.shadow.camera.near = 0.1;
		dirLight.shadow.camera.far = 20;
		scene.add( dirLight );

		// scene.add( new THREE.CameraHelper( dirLight.shadow.camera ) );

		//

		var mesh = new THREE.Mesh( new THREE.PlaneBufferGeometry( 50, 50 ), new THREE.MeshPhongMaterial( { color: 0x999999, depthWrite: false } ) );
		mesh.rotation.x = - Math.PI / 2;
		mesh.receiveShadow = true;
		scene.add( mesh );

		var grid = new THREE.GridHelper( 50, 50, 0x444444, 0x444444 );
		scene.add( grid );

		//

		var listener = new THREE.AudioListener();
		camera.add( listener );

		var audioElement = document.getElementById( 'music' );
		audioElement.play();

		var positionalAudio = new THREE.PositionalAudio( listener );
		positionalAudio.setMediaElementSource( audioElement );
		positionalAudio.setRefDistance( 1 );
		positionalAudio.setDirectionalCone( 210, 230, 0.1 );

		//

		var gltfLoader = new THREE.GLTFLoader();
		gltfLoader.load( 'models/gltf/BoomBox/glTF-Binary/BoomBox.glb', function ( gltf ) {

			var boomBox = gltf.scene;
			boomBox.position.set( 0, 0.2, 0 );
			boomBox.scale.set( 20, 20, 20 );

			boomBox.traverse( function ( object ) {

				if ( object.isMesh ) {

					object.material.envMap = reflectionCube;
					object.geometry.rotateY( - Math.PI );
					object.castShadow = true;

				}

			} );

			boomBox.add( positionalAudio );
			scene.add( boomBox );
			animate();

		} );

		// sound is damped behind this wall

		var wallGeometry = new THREE.BoxBufferGeometry( 2, 1, 0.1 );
		var wallMaterial = new THREE.MeshBasicMaterial( { color: 0xff0000, transparent: true, opacity: 0.5 } );

		var wall = new THREE.Mesh( wallGeometry, wallMaterial );
		wall.position.set( 0, 0.5, - 0.5 );
		scene.add( wall );


		//

		renderer = new THREE.WebGLRenderer( { antialias: true } );
		renderer.setSize( window.innerWidth, window.innerHeight );
		renderer.setPixelRatio( window.devicePixelRatio );
		renderer.gammaOutput = true;
		renderer.gammaFactor = 2.2;
		renderer.shadowMap.enabled = true;
		container.appendChild( renderer.domElement );

		//

		var controls = new THREE.OrbitControls( camera, renderer.domElement );
		controls.target.set( 0, 0.1, 0 );
		controls.update();
		controls.minDistance = 0.5;
		controls.maxDistance = 10;
		controls.maxPolarAngle = 0.5 * Math.PI;

		//

		window.addEventListener( 'resize', onWindowResize, false );

	}

	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>