Apple Motion 5.1.1 - Manual (Page 479)

Chapter 12 Keyframing 479
Curve extrapolation methods
The following extrapolation options are available in the Before First Keyframe and After Last
Keyframe submenus. (In each of the illustrated examples below, the extrapolation setting is
applied after the last keyframe.)
•
Constant: This method, the default, holds the beginning or ending segments of the curve to
the same value as the first or last keyframe.
•
Linear: This method extends the curve beyond the first or last keyframes uniformly, along the
existing trajectory of the first or last keyframe.
•
Ping Pong: This method copies the curve and repeats it, alternating forward and backward.
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