Apple Motion 2 - Manual (Page 441)

Chapter 6 Keyframes and Curves 441
Bezier handles appear and your mouse movement automatically controls one of the
handles.
Note: Command-clicking a Bezier point resets it to Linear interpolation.
To simultaneously modify the handles for more than one control point, Shift-select the
points and then adjust the tangents. If there are no tangents on the point, Command-
drag the point.
Extrapolation
In addition to setting interpolation for the areas between keyframes, you can define
how Motion generates the values before the first keyframe and after the last one
(extrapolation). When you set a such a method for a parameter, new keyframes are
added beyond your original keyframes. This can be helpful when trying to extend the
duration of an effect such as a moving background.
To set the Before First Keyframe for a parameter:
1 Click the Animation menu for the parameter you want to change.
01112.book Page 441 Sunday, March 13, 2005 10:36 PM