Apple Motion 5.1.1 - Manual (Page 556)

Chapter 14 Particles 556
12 To make the particles generated from this cell spin in the opposite direction, set the Spin
parameter value to –60.
13 To create a trail of particles, the emitter must be animated to follow the required motion path; do
the following to create a motion path for the particle system:
a Place the playhead at frame 1.
b Click the Record button (or press A) to turn on animation recording.
Note: As an alternative to Step b (turning on the Record button), you can manually add a
keyframe to the emitter’s Position parameter in the Properties Inspector after Step c. Any
subsequent changes to the emitter’s position result in a keyframe at the current playhead
position (regardless of the Record button state).
c Select the emitter and drag the particle system to the lower-left corner of the screen.
d Press End to go to the last frame of the project.
e Drag the emitter toward the upper-right corner.
f Disable Record (press A).
g Click the Play button to begin playback.
14 Use the following illustration as a guide to adjust the Emission Range and Angle so the particles
appear to follow behind the emitter.
67% resize factor