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136 lines
3.9 KiB
136 lines
3.9 KiB
<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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[page:Object3D] → [page:Audio] →
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<h1>[name]</h1>
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<p class="desc">
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创建一个位置相关的音频对象.<br /><br />
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使用了[link:https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API Web Audio API].
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</p>
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<h2>代码示例</h2>
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<code>
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// create an AudioListener and add it to the camera
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const listener = new THREE.AudioListener();
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camera.add( listener );
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// create the PositionalAudio object (passing in the listener)
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const sound = new THREE.PositionalAudio( listener );
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// load a sound and set it as the PositionalAudio object's buffer
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const audioLoader = new THREE.AudioLoader();
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audioLoader.load( 'sounds/song.ogg', function( buffer ) {
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sound.setBuffer( buffer );
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sound.setRefDistance( 20 );
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sound.play();
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});
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// create an object for the sound to play from
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const sphere = new THREE.SphereGeometry( 20, 32, 16 );
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const material = new THREE.MeshPhongMaterial( { color: 0xff2200 } );
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const mesh = new THREE.Mesh( sphere, material );
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scene.add( mesh );
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// finally add the sound to the mesh
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mesh.add( sound );
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</code>
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<h2>例子</h2>
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<p>
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[example:webaudio_orientation webaudio / orientation ]<br />
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[example:webaudio_sandbox webaudio / sandbox ]<br />
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[example:webaudio_timing webaudio / timing ]
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</p>
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<h2>构造函数</h2>
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<h3>[name]( [param:AudioListener listener] )</h3>
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<p>
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listener — (必须) [page:AudioListener AudioListener] 实例.
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</p>
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<h2>属性</h2>
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<p>
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[page:Audio Audio]类的继承属性.
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</p>
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<h3>[property:PannerNode panner]</h3>
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<p>位置相关音频的[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode PannerNode].</p>
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<h2>方法</h2>
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<p>
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[page:Audio Audio]类的继承方法.
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</p>
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<h3>[method:PannerNode getOutput]()</h3>
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<p>
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返回[page:PositionalAudio.panner panner].
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</p>
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<h3>[method:Float getRefDistance]()</h3>
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<p>
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返回[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/refDistance panner.refDistance]的值.
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</p>
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<h3>[method:this setRefDistance]( [param:Float value] )</h3>
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<p>
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设置[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/refDistance panner.refDistance]的值.
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</p>
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<h3>[method:Float getRolloffFactor]()</h3>
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<p>
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返回[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/rolloffFactor panner.rolloffFactor]的值.
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</p>
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<h3>[method:this setRolloffFactor]( [param:Float value] )</h3>
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<p>
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设置[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/rolloffFactor panner.rolloffFactor]的值.
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</p>
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<h3>[method:String getDistanceModel]()</h3>
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<p>
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返回[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/distanceModel panner.distanceModel]的值.
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</p>
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<h3>[method:this setDistanceModel]( [param:String value] )</h3>
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<p>
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设置[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/distanceModel panner.distanceModel]的值.
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</p>
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<h3>[method:Float getMaxDistance]()</h3>
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<p>
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返回[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/maxDistance panner.maxDistance]的值.
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</p>
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<h3>[method:this setMaxDistance]( [param:Float value] )</h3>
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<p>
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设置[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/maxDistance panner.maxDistance]的值.
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</p>
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<h3>[method:this setDirectionalCone]( [param:Float coneInnerAngle], [param:Float coneOuterAngle], [param:Float coneOuterGain] )</h3>
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<p>
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这个方法用来把环绕声音转换为定向声音[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode directional sound].
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</p>
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<h2>Source</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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</p>
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</body>
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</html>
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