Apple Motion 3 - Manual (Page 747)

Chapter 8 Working with Particles 747
8 Use the Opacity Over Life control to make this cell’s particles fade out over their life.
9 To make the spark particles spin as they move away, set the Spin parameter value to 60.
10 In the Layers tab, select the Flare01 cell of the particle system. Its parameters
automatically appear in the Inspector.
11 Follow the procedure in Step 7 to make these particles light yellow.
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 needs to 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.
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.