1 person found this helpful
Expressions just make things easier to do, instead of you having to keyframe these things it does it for you.
Go to videocopilot.net and look in their early tutorials for a list of expressions and helpful tips
Thanks for the reply but I'm still a bit confused.
Because after I input the script the tutorial video just has us save it then we render.
What exactly is the script/expression doing to the particles? Telling them when to bounce at a specific time?
Also thank you for the tutorial site!
That specific expression is taking the initial value of that property ("value") and then adding to it the value defined by the Expression Control slider (with some scaling/arithmetic applied to the slider's value, ie the "/10" and "/30")