Apple Motion 5.1.1 - Manual (Page 714)

Chapter 18 Generators 714
Because the Randomize parameter behavior is applied to the opacity of the star spikes, the
star appears to flicker. When a Parameter behavior is applied to a parameter of a generator, a
behavior icon (a gear) appears in the Generator Inspector in the row for the affected parameter.
In this example, the behavior icon appears in the Spike Opacity parameter row.
The gear icon indicates
that the parameter is being
controlled by a behavior.
6 To increase or decrease the effect of the flicker, adjust the Randomize parameters (in the
Behaviors Inspector). To jump to the Randomize parameters from the Generator Inspector,
control-click Spike Opacity parameter name, then choose Randomize from the shortcut menu.
For more information on using Parameter behaviors such as the Randomize behavior, see
Randomize on page 346.
Use a generator as a particle cell source
As with other objects, generators can be used as a source for particle cells. The following
example uses the Soft Gradient generator. To give your particle system more flexibility and
reduce processing strain on your computer, scale the generator down in the Generator Inspector.
67% resize factor