Apple Motion 5.1.1 - Manual (Page 713)

Chapter 18 Generators 713
Animate a generator using behaviors
As with all other objects in Motion, you can apply Basic Motion, Parameter, or Simulation
behaviors to a generator. The following task randomizes the opacity of the Star generator to
create a flickering star.
1 Add the Star generator to your project and display the Generator Inspector.
2 In the Generator Inspector, move the pointer over the Spike Opacity parameter row.
The Animation menu (an inverted triangle) appears on the right side of the parameter row.
3 Click the Animation menu for the Spike Opacity parameter, then choose Randomize from the
Add Parameter Behavior submenu.
The Randomize parameter behavior is applied to the Spike Opacity parameter, and the Behaviors
Inspector is displayed so you can adjust the Randomize parameters.
4 In the Behaviors Inspector, drag the Amount slider to the right to increase the randomization
effect.
5 In the transport controls (under the Canvas), click the Play button (or press the Space bar).
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