1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798 |
- <!DOCTYPE html>
- <html lang="zh">
- <head>
- <meta charset="utf-8" />
- <base href="../../../" />
- <script src="page.js"></script>
- <link type="text/css" rel="stylesheet" href="page.css" />
- </head>
- <body>
- <h1>[name]</h1>
- <p class="desc">
- 允许加权累加的缓冲场景图属性,内部使用
- </p>
- <h2>构造器</h2>
- <h3>[name]( [param:PropertyBinding binding], [param:String typeName], [param:Number valueSize] )</h3>
- <p>
- -- binding <br />
- -- typeName <br />
- -- valueSize <br />
- </p>
- <h2>属性</h2>
- <h3>[property:PropertyBinding binding]</h3>
- <p>
- </p>
- <h3>[property:TypedArray buffer]</h3>
- <p>
- 大小为 4 * [page:PropertyMixer valueSize] 的缓冲区 <br /><br />
- 布局为: [ incoming | accu0 | accu1 | orig ]<br /><br />
- 插值器可使用 .buffer 作为 .result 且数据会进入'incoming'区.
- 'accu0'和'accu1'用于按帧交错累加‘incoming’中的数据并进行比较以侦测变化。'orig'存储着属性的原始状态。
- </p>
- <h3>[property:Number cumulativeWeight]</h3>
- <p>
- 默认值是0
- </p>
- <h3>[property:Number valueSize]</h3>
- <p>
- </p>
- <h3>[property:Number referenceCount]</h3>
- <p>
- 默认值是0
- </p>
- <h3>[property:Number useCount]</h3>
- <p>
- 默认值是0
- </p>
- <h2>方法</h2>
- <h3>[method:undefined accumulate]( [param:Number accuIndex], [param:Number weight] )</h3>
- <p>
- 将[page:PropertyMixer.buffer buffer][accuIndex]中'incoming'区的数据累加到'accu[i]'区中。<br />
- 如果权值为0,则什么都不做。
- </p>
- <h3>[method:undefined apply]( [param:Number accuIndex] )</h3>
- <p>
- 当累加值不同时,将[page:PropertyMixer.buffer buffer] 'accu[i]区的状态应用于绑定.
- </p>
- <h3>[method:undefined saveOriginalState]( )</h3>
- <p>
- 记住绑定属性的状态并复制到两个'accu'区中.
- </p>
- <h3>[method:undefined restoreOriginalState]( )</h3>
- <p>
- 将预先通过'saveOriginalState'方法取得的状态应用于绑定。
- </p>
- <h2>方法</h2>
- <p>
- [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
- </p>
- </body>
- </html>
|