three
Version:
JavaScript 3D library
134 lines (75 loc) • 2.73 kB
JavaScript
import { Vector3 } from '../math/Vector3.js';
import { Quaternion } from '../math/Quaternion.js';
import { Audio } from './Audio.js';
import { Object3D } from '../core/Object3D.js';
const _position = new Vector3();
const _quaternion = new Quaternion();
const _scale = new Vector3();
const _orientation = new Vector3();
function PositionalAudio( listener ) {
Audio.call( this, listener );
this.panner = this.context.createPanner();
this.panner.panningModel = 'HRTF';
this.panner.connect( this.gain );
}
PositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {
constructor: PositionalAudio,
getOutput: function () {
return this.panner;
},
getRefDistance: function () {
return this.panner.refDistance;
},
setRefDistance: function ( value ) {
this.panner.refDistance = value;
return this;
},
getRolloffFactor: function () {
return this.panner.rolloffFactor;
},
setRolloffFactor: function ( value ) {
this.panner.rolloffFactor = value;
return this;
},
getDistanceModel: function () {
return this.panner.distanceModel;
},
setDistanceModel: function ( value ) {
this.panner.distanceModel = value;
return this;
},
getMaxDistance: function () {
return this.panner.maxDistance;
},
setMaxDistance: function ( value ) {
this.panner.maxDistance = value;
return this;
},
setDirectionalCone: function ( coneInnerAngle, coneOuterAngle, coneOuterGain ) {
this.panner.coneInnerAngle = coneInnerAngle;
this.panner.coneOuterAngle = coneOuterAngle;
this.panner.coneOuterGain = coneOuterGain;
return this;
},
updateMatrixWorld: function ( force ) {
Object3D.prototype.updateMatrixWorld.call( this, force );
if ( this.hasPlaybackControl === true && this.isPlaying === false ) return;
this.matrixWorld.decompose( _position, _quaternion, _scale );
_orientation.set( 0, 0, 1 ).applyQuaternion( _quaternion );
const panner = this.panner;
if ( panner.positionX ) {
// code path for Chrome and Firefox (see #14393)
const endTime = this.context.currentTime + this.listener.timeDelta;
panner.positionX.linearRampToValueAtTime( _position.x, endTime );
panner.positionY.linearRampToValueAtTime( _position.y, endTime );
panner.positionZ.linearRampToValueAtTime( _position.z, endTime );
panner.orientationX.linearRampToValueAtTime( _orientation.x, endTime );
panner.orientationY.linearRampToValueAtTime( _orientation.y, endTime );
panner.orientationZ.linearRampToValueAtTime( _orientation.z, endTime );
} else {
panner.setPosition( _position.x, _position.y, _position.z );
panner.setOrientation( _orientation.x, _orientation.y, _orientation.z );
}
}
} );
export { PositionalAudio };