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Using Help | Contents
Working in the Motion Math window (PB only)
All of your work running, editing, and writing scripts occurs in the Motion Math window. In
this window, you load a new script, save a script you've written, and apply a script to a
composition. When you first open the Motion Math window, the Copy Values script
appears. You can use this script as it is, edit it, or load a new script.
A
B
C
D
The Copy Values script A. Script editor B. Language element menus
C. Layer, Property, and Channel menus D. Error notification area
Note: When you rerun a particular script on the same elements and time range, Motion
Math generates new keyframes in place of the old ones in the current work area.
Motion Math scripts included with the Production Bundle
(PB only)
Several prewritten scripts, along with sample movies, are available from the After Effects
CD. Each script creates keyframes for specified properties and channels in one of two
layers, depending on the motion or effect you want. Most of the prewritten scripts create
new keyframes automatically, but you can use some scripts to change the values of
existing keyframes. By changing the scale factors or variable numerical values in the
scripts, you can achieve the effect you want. As you experiment with the prewritten
scripts, you will learn more about the Motion Math scripting language, and you will gain
the confidence to create and save your own scripts. Scripts are named using a .mm
extension.
The After Effects CD provides the following prewritten scripts and movies:
Apply from Effect Point (frmeffct.mm and frmeffct.mov) Copies the values of an effect
point from one layer, multiplies them by a scale factor, and then creates position
keyframes in a second layer using the new values.
Apply to Effect Point (toeffect.mm and toeffect.mov) Copies the horizontal or vertical
(or both) position values of one layer, multiplies them by a scale factor, and then creates
specified effect keyframes in a second layer using the new values.
Using Help | Contents
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Using Motion Math (PB only)
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