Apple Motion 3 User Manual
Page 987
Chapter 11
Working with Generators
987
Although the checkerboard pattern is not changing, adjusting the Contrast parameter
creates the appearance of a different texture.
Animating Generators
Although most generators create static images, you can animate the parameters of a
generator to create a moving texture over time. This section discusses using the HUD
to animate the Checkerboard generator from the above example.
Note: You can also animate the parameters of an animated generator.
For information on using Parameter behaviors to animate a generator, see “
To animate the Checkerboard generator parameters:
1
Go to the frame where you want to begin the animation.
2
Enable Record (press A).
3
Set the initial generator parameter values:
 Drag the Size slider to set the initial checker size.
Once a keyframe is set for any parameter in a generator, a keyframe is set for all of
the generator parameters. In other words, once the Size parameter is keyframed, the
Color 1, Color 2, Contrast, and Center parameters are keyframed.
 Click the color wells and pick the initial colors.
 Drag the Contrast slider to set the initial contrast value.
 Drag one of the Center parameter value sliders to set the initial Center value.
The value slider on the left of the Center parameter is the X position of the checkers,
and the value slider on the right is the Y position. To animate the checkers
horizontally, use the left value slider. To animate the checkers vertically, use the right
slider. To view the X and Y parameters, click the Center disclosure triangle.
4
Go to the frame where you want to create the next keyframe.
5
Change the generator Size, Colors, and Contrast parameter values.
6
Play the project (press the Space bar).