Apple Motion 5.1.1 - Manual (Page 554)

Chapter 14 Particles 554
This example uses the “Flare01” image from the Particle Images subcategory in the Content
category of the Library. This is a small image of a lens flare against black, with a built-in
alpha channel.
2 With the flare object selected, click the Make Particles button in the toolbar (or press E).
An emitter is added to the project, but nothing happens yet because the playhead is at the first
frame of the project, and only one particle has been created. Move the playhead forward a few
seconds to view the particle system at a frame where more particles have been generated. You
can also play the project while you make your modifications to the particle system.
3 To create a variety of particles, drag additional image layers onto the emitter you just created.
This example uses the “Spark12” file, also located in the Content folder in the Library.
This results in the following image:
4 To make the particles generated by each different cell mingle together, select the Interleave
Particles checkbox in the Emitter Inspector.
5 Select the “Flare01” cell in the Layers list, then set the Scale slider in the Particle Cell Inspector to
15%.
Doing this reduces the size of the particles generated by this cell.
67% resize factor