[name]

Buffered scene graph property that allows weighted accumulation; used internally.

Constructor

[name]( binding, typeName, valueSize )

-- binding
-- typeName
-- valueSize

Properties

[property:Number binding]

[property:Number buffer]

Buffer with size [page:PropertyMixer valueSize] * 4.

This has the layout: [ incoming | accu0 | accu1 | orig ]

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.

[property:Number cumulativeWeight]

Default is *0*.

[property:Number valueSize]

[property:Number referenceCount]

Default is *0*.

[property:Number useCount]

Default is *0*.

Methods

[method:null accumulate]( accuIndex, weight )

Accumulate data in [page:PropertyMixer.buffer buffer][accuIndex] 'incoming' region into 'accu[i]'.
If weight is *0* this does nothing.

[method:null apply]( accuIndex )

Apply the state of [page:PropertyMixer.buffer buffer] 'accu[i]' to the binding when accus differ.

[method:null saveOriginalState]( )

Remember the state of the bound property and copy it to both accus.

[method:null restoreOriginalState]( )

Apply the state previously taken via 'saveOriginalState' to the binding.

Source

[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]