Apple Motion 4 - Manual (Page 609)

Note: You can also use a group as the source for an emitter cell, but keep in mind that
your project’s interactivity may slow drastically.
Emitter
Particle
Particle
To create an emitter
1 Place a layer that you want to use to generate particles into your project.
This example uses an image of a simple white circular gradient, such as the “basic blur”
image located in the Library (in the Particle Images subcategory of the Content category).
2 Move the object in the Canvas to the location where you want the center of your particle
system to be.
3 Select the object, then do one of the following:
• In the Toolbar, click the Make Particles icon.
• Press E.
609 Chapter 11 Working with Particles