Constant Key Reducer
 
 
 

Activate the Constant Key Reducer filter to remove redundant keys. Redundant keys are keys that have the same value, which are equivalent to flat horizontal interpolations on a curve. Redundant keys are often a result of a resampled curve.

Before:

After:

You can set specific thresholds for each type of transform. T, R, S, and Other. Other includes Morph and custom attribute curves, for example.

Values represent generic units. This is why you might need to modify threshold values in relation to the world scale of your scene, for example with extremely large or small scale scenes.

If keys are numerically identical, use very small values to ensure that no animation is lost.

If you use this filter to eliminate noise, for example, from motion capture data, then you might need to modify values.

Setting Description
Translation filter intensity Threshold for translation curves in generic units.
Rotation filter intensity Threshold for rotation curves in generic units.
Scaling filter intensity Threshold for scaling curves in generic units.
Other filter intensity Threshold for other curves in generic units.
Auto tangents only This option ensures that the plug-in filters only “auto” key types. Otherwise, keys with interpolation values greater than a certain threshold might be deleted.

The default values are: