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- <h1>[name]</h1>
- <p class="desc">
- Buffered scene graph property that allows weighted accumulation; used
- internally.
- </p>
- <h2>Constructor</h2>
- <h3>[name]( [param:PropertyBinding binding], [param:String typeName], [param:Number valueSize] )</h3>
- <p>
- -- binding <br />
- -- typeName <br />
- -- valueSize <br />
- </p>
- <h2>Properties</h2>
- <h3>[property:PropertyBinding binding]</h3>
- <h3>[property:TypedArray buffer]</h3>
- <p>
- Buffer with size [page:PropertyMixer valueSize] * 4. <br /><br />
- This has the layout: [ incoming | accu0 | accu1 | orig ]<br /><br />
- Interpolators can use .buffer as their .result and the data then goes to
- 'incoming'. 'accu0' and 'accu1' are used frame-interleaved for the
- cumulative result and are compared to detect changes. 'orig' stores the
- original state of the property.
- </p>
- <h3>[property:Number cumulativeWeight]</h3>
- <p>Default is `0`.</p>
- <h3>[property:Number cumulativeWeightAdditive]</h3>
- <p>Default is `0`.</p>
- <h3>[property:Number valueSize]</h3>
- <h3>[property:Number referenceCount]</h3>
- <p>Default is `0`.</p>
- <h3>[property:Number useCount]</h3>
- <p>Default is `0`.</p>
- <h2>Methods</h2>
- <h3>
- [method:undefined accumulate]( [param:Number accuIndex], [param:Number weight] )
- </h3>
- <p>
- Accumulate data in [page:PropertyMixer.buffer buffer][accuIndex]
- 'incoming' region into 'accu[i]'.<br />
- If weight is `0` this does nothing.
- </p>
- <h3>[method:undefined accumulateAdditive]( [param:Number weight] )</h3>
- <p>
- Accumulate data in the 'incoming' region into 'add'.<br />
- If weight is `0` this does nothing.
- </p>
- <h3>[method:undefined apply]( [param:Number accuIndex] )</h3>
- <p>
- Apply the state of [page:PropertyMixer.buffer buffer] 'accu[i]' to the
- binding when accus differ.
- </p>
- <h3>[method:undefined saveOriginalState]( )</h3>
- <p>Remember the state of the bound property and copy it to both accus.</p>
- <h3>[method:undefined restoreOriginalState]( )</h3>
- <p>
- Apply the state previously taken via 'saveOriginalState' to the binding.
- </p>
- <h2>Source</h2>
- <p>
- [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
- </p>
- </body>
- </html>
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