Key Reducer Filter options

• In the Graph Editor Curves Menu, select Key Reducer Filter >

The Key Reducer Filter uses a different algorithm from the Smooth Filter (Butterworth) and eliminates the number of keyframes by removing unnecessary keyframes on curves.

Note: This filter does not work on Set Driven Keys or other non-time based curves.

Note: To restore the filter default settings, click Edit > Reset Settings in the Filter window.

Time Range

Specifies the time range where the curve is simplified.

All

Simplifies the curve for the entire time range.

Selection

Lets you can select a portion of a curve, so you can apply the filter to a limited area, rather than affecting the entire curve. Hold Ctrl to select multiple areas at once.

Time Slider

Simplifies the curve for the time range defined by the Playback Start and End times of the Time Slider.

Start/End

All keys within the specified time range (start time/end time) are simplified.

Start Time

Specifies the start of the time range. This is available only if Start/End is on.

End Time

Specifies the end of the time range. This is available only if Start/End is on.

Preview

Lets you visualize the effect on your curve before you apply it. This option is on by default.

Precision Mode

Choose from two different methods to apply the filter tolerance and use the Precision slider to set a value.

Absolute

Discards keys that don't match the error tolerance specified in the Precision slider.

Percentage

Discards keys within a percentage of the curve value.

Note: You can set Percentage to 0 and converts the filter into a Constant Key Reducer to eliminate redundant keyframes.

Sync Keys on Curves

Used for sibling curves (for example, Translate X, Y, and Z) to ensure that where there is a key on one sibling, it is applied to all, keeping the keys aligned at the same frame time.

Preserve Keys by Tangent

Lets you exclude the selected tangent type(s) from filtering.