Can I run time backward w/ particle system ?

I have several particle systems, but I want one of them to run backward in time, ie start from spread out particles and end with particles all gathered at the emitter mesh.
Is this possible, did I miss a setting ?



  1. Select your particle emitter.
  2. In the IPO window select the time channel.
  3. If there is no time IPO yet, create one with CTRL-LMB.
  4. Edit the time IPO curve so that it is higher on the left and lower on the right. Adjust the the values as needed for your animation.
  5. Voila! You just reversed the direction of time. :wink:

Excellent. Thank you !