Flipping Function Curves and Regions

You can flip an fcurve or region of keys on their X (time) or Y (values) axes, thus inverting the animation by time or its values. Flipping transposes the keys across a dividing line determined by the midpoint between the highest and lowest key values on the selected axis.

• Flipping an fcurve flips the entire curve, with the pivot centered on the curve.

• Flipping a region flips the fcurve segment defined in the whole region and not just the keys within it. The pivot is the center of the region. If you flip a region that does not start or end on a key, Softimage creates new keys at the start or end point.

Flipping works by cutting the fcurve or region and then pasting it back. The first and last keys in a region are not affected by this, so to make sure that they are, select these Continuity pasting options in the Fcurve Editor Preferences property editor: Left Key: Use Right Value and Right Key: Use Left Value. See Setting Options for Pasting for more information.

To flip an fcurve or region

1. Select the fcurve or select a region of keys that you want to flip.

2. Choose Curves Flip Y (Value) to invert the values; choose Flip X (Time) to invert the time.

In the image below, an fcurve is flipped on its Y (values) axis.

In the image below, a region is flipped on its X (time) axis.