Lost Adventurer, Aleks Kirilenko (3D)
LC #42 Pipers Alley

View Full Version : Collision

02-18-2011, 11:38 AM

I'm doing a scene where I have lots of particles flying around a scene with some basic shapes in the way. I want to to make it so that the particles can't go through the objects and ground. How do I do this?



02-18-2011, 07:21 PM
Tests->Collision :)

Add a uDeflector to all of your interacting objects and add them to the Collision Test. If your particles are fast moving you will need to adjust your Integration Step (look it up in the Help File, search "Particle Flow Source") to help keep them from penetrating your collision objects.

Note: this only works on particle points not actual particle geometry and... no, there is no easy way to do that in vanilla pflow (this has been asked a million times :) ). If you need actual particle shape collisions you will need Particle Flow Tools Box#2.

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02-18-2011, 07:21 PM
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