if you have nParticles colliding with a passive collider object, is it possible to enable collisions for the outside of that object, only?
For example in RealFlow, you can choose wether to make particles collide with outside, inside or both sides of an object, depending on its normals. I know in maya isn't a switch like that but probably this could be done via scripting. Unfortunately nParticles doesn't support the CollisionGeometryIndex (AFAIK), so I don't have an idea on how to get there.
Does anybody have an idea?