Apple Motion 3 - Manual (Page 713)

Chapter 8 Working with Particles 713
Emitter Parameters
Several parameters in the Emitter tab are identical to those found in the Emitter HUD,
with one difference. While the emission control in the Emitter HUD allows you to
manipulate the Range, Angle, Latitude (3D), Longitude (3D), and Speed parameters
using a single, graphical control, the Emitter tab uses individual controls for each
parameter.
Note: There is no way to directly control the animation of individual particles.
Important: The emitter parameters in the Properties and Emitter tabs can be
keyframed to change values over time.
Curve Appearance in the Keyframe Editor
The selected object determines which curves appear in the Keyframe Editor (when
Animated is selected from the Show pop-up menu in the Keyframe Editor list):
 Select the emitter to display animated emitter parameters such as Position and
Rotation (in the Properties tab) or Emission Angle and Range (in the Emitter tab).
 Select the cell to display animated parameters such as Birth Rate or Angle (in the
Particle Cell tab).
Note: To manually send an animated parameter to the Keyframe Editor, click the
parameter’s Animation menu, then choose Show In Keyframe Editor.