/
threejs-panner.html
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threejs-panner.html
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<!DOCTYPE html>
<script src='vendor/three.js/build/three.min.js'></script>
<script src='vendor/three.js/examples/js/ImprovedNoise.js'></script>
<script src='../lib/webaudiox.lineout.js'></script>
<script src='../lib/webaudiox.loadbuffer.js'></script>
<script src='../lib/webaudiox.three.js'></script>
<body style='margin: 0px; background-color: #bbbbbb; overflow: hidden;'><script>
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
var updateFcts = [];
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.01, 100);
camera.position.z = 3;
//////////////////////////////////////////////////////////////////////////////////
// to play immediatly //
//////////////////////////////////////////////////////////////////////////////////
window.AudioContext = window.AudioContext || window.webkitAudioContext;
var context = new AudioContext()
// put a ListenerObject3DUpdater
var listenerUpdater = new WebAudiox.ListenerObject3DUpdater(context, camera)
updateFcts.push(function(delta, now){
listenerUpdater.update(delta, now)
})
// Create lineOut
var lineOut = new WebAudiox.LineOut(context)
lineOut.volume = 1
// add an analyser on lineOut
var analyser = context.createAnalyser()
analyser.connect(lineOut.destination);
lineOut.destination = analyser;
//////////////////////////////////////////////////////////////////////////////////
// comment //
//////////////////////////////////////////////////////////////////////////////////
var THREEx = THREEx || {}
THREEx.PannerHelper = function(panner){
THREE.Object3D.call( this );
// build
var coneInnerAngle = panner.coneInnerAngle/180*Math.PI
var radiusTop = Math.sin(coneInnerAngle/2);
var height = 1;
var geometry = new THREE.CylinderGeometry(radiusTop, 0, height, 16, 16, true)
var material = new THREE.MeshBasicMaterial()
material.color.set('green')
material.wireframe = true
var coneInner = new THREE.Mesh(geometry, material)
coneInner.position.z = height/2
coneInner.rotation.x = Math.PI/2;
this.add(coneInner)
// build
var coneOuterAngle = panner.coneOuterAngle/180*Math.PI
var radiusTop = Math.sin(coneOuterAngle/2);
var height = 1;
var geometry = new THREE.CylinderGeometry(radiusTop, 0, height, 16, 16, true)
var material = new THREE.MeshBasicMaterial()
material.color.set('red')
material.wireframe = true
var coneOuter = new THREE.Mesh(geometry, material)
coneOuter.position.z = height/2
coneOuter.rotation.x = Math.PI/2;
this.add(coneOuter)
}
THREEx.PannerHelper.prototype = Object.create( THREE.Object3D.prototype );
//////////////////////////////////////////////////////////////////////////////////
// comment //
//////////////////////////////////////////////////////////////////////////////////
// load a sound and play it immediatly
WebAudiox.loadBuffer(context, 'sounds/triggerrally/checkpoint.wav', function(buffer){
var destination = lineOut.destination;
// init AudioPannerNode
var panner = context.createPanner()
panner.coneOuterGain = 0.4
panner.coneOuterAngle = Math.PI/6 *180/Math.PI
panner.coneInnerAngle = Math.PI/8 *180/Math.PI
var pannerMesh = new THREEx.PannerHelper(panner)
mesh.add(pannerMesh)
panner.connect(destination)
destination = panner
// put a PannerObject3DUpdater
var pannerUpdater = new WebAudiox.PannerObject3DUpdater(panner, mesh)
updateFcts.push(function(delta, now){
pannerUpdater.update(delta, now)
})
// init AudioBufferSourceNode
var source = context.createBufferSource();
source.buffer = buffer
source.loop = true
source.connect(destination)
destination = source
// start the sound now
source.start(0);
});
//////////////////////////////////////////////////////////////////////////////////
// add an object and make it move //
//////////////////////////////////////////////////////////////////////////////////
var geometry = new THREE.CubeGeometry( 1, 1, 1)
var material = new THREE.MeshNormalMaterial()
var mesh = new THREE.Mesh( geometry, material )
scene.add( mesh )
updateFcts.push(function(delta, now){
// var angle = 0.2 * now * Math.PI*2
// mesh.position.x = Math.cos(angle)*1
// mesh.position.z = Math.sin(angle)*1
})
updateFcts.push(function(delta, now){
mesh.rotation.x += 0.1 * delta;
// mesh.rotation.y += 2 * delta;
})
//////////////////////////////////////////////////////////////////////////////////
// render the scene //
//////////////////////////////////////////////////////////////////////////////////
updateFcts.push(function(){
renderer.render( scene, camera );
})
//////////////////////////////////////////////////////////////////////////////////
// loop runner //
//////////////////////////////////////////////////////////////////////////////////
var lastTimeMsec= null
requestAnimationFrame(function animate(nowMsec){
// keep looping
requestAnimationFrame( animate );
// measure time
lastTimeMsec = lastTimeMsec || nowMsec-1000/60
var deltaMsec = Math.min(200, nowMsec - lastTimeMsec)
lastTimeMsec = nowMsec
// call each update function
updateFcts.forEach(function(updateFn){
updateFn(deltaMsec/1000, nowMsec/1000)
})
})
</script></body>