Trapcode Trapcode Particular 2.2 Plugin For After Effects ~upd~ -
This hierarchy made it approachable. A user could get a basic starfield running in 30 seconds, but spend hours fine-tuning the "Air Resistance" and "Turbulence" to make it look like a cinematic space scene.
Here are some tips and tricks to help you get the most out of Trapcode Particular 2.2: trapcode trapcode PARTICULAR 2.2 Plugin for After Effects
What (e.g., fire, dust, light streaks) are you trying to build? This hierarchy made it approachable