Apple Motion 2 - Manual (Page 850)

850 Chapter 12 Using Shapes and Masks
The animated shape object interpolates between each keyframed shape. If you don’t
like how the interpolation is working, you can add more keyframes to force the control
points to follow the path you want.
You can also create, delete, and edit the timing of Shape Animation keyframes directly
in the Keyframe Editor. For simplicity, each change you make to a shape is recorded as
a single keyframe, no matter how many control points are edited. The Shape Animation
parameter only allows keyframes set to constant. You cannot use any other form of
keyframe interpolation.
The process used to animate both shapes and masks is identical. To see an example of
mask animation, see “
Keyframing a Mask’s Shape for Animation and Rotoscoping ” on
page 862. For more information on keyframing in general, see “ Keyframes and Curves ”
on page 401.
Interpolated shape First keyframe Second keyframe
01112.book Page 850 Sunday, March 13, 2005 10:36 PM