Changing Color on PhysX Interparticle Collision

[stusic]

Your current Property Test condition will never be satisfied ("neighbors within particle's radius"), because that would entail that a particle (the center point of any given cup) is within the boundary of another particle's search radius...but your cups collide with each other and don't interpenetrate like that. Switch to "particle and neighbor radii overlap" and the condition will be met.

omg, that makes so much sense...

Am I right in thinking I don't need the second Property Test as it will just continue past the first test if it fails? nm


Thanks again, and keep up the great work!

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Just to follow up, this is what my final flow looks like: