Apple Motion 3 - Manual (Page 714)

714 Chapter 8 Working with Particles
The parameter is displayed in the Keyframe Editor in a new, untitled curve set.
To open a particle system’s Emitter tab:
1 Select an emitter object in the Layers tab, Timeline, or Canvas.
2 In the Inspector, click the Emitter tab.
The Emitter parameters appear.
The contents of the Emitter tab are dynamic, and different parameters appear
depending on the number of cells in the particle system, the emitter shape that’s used,
and whether 3D is turned on or off.
Single Cell Versus Multi-Cell Emitter Parameters
At first glance, many of the parameters in the Emitter tab appear to mirror identically
named parameters in the Particle Cell tab. If a particle system has only one cell, the
Emitter tab displays all of the parameters for the cell, as well as the emitter’s own
parameters. In this case, you can control every aspect of the particle system directly
from this single tab, which saves you from having to go back and forth between the
Emitter and Particle Cell tabs.
Emitter tab for particle
system with single cell Emitter tab for particle
system with multiple cells