RonL

Aha, thanks for the info. Too bad, I was hoping that was geometry based resistance for the particles. Oh well.

The collision isn't the look I need, I'm looking for the aerodynamic swirls around the body of a vehicle (and hopefully the turbulence in the wake). I'll have to figure out a more advanced system. Maybe the Attractor set to negative to repel? - Or a area based “switch” to a different set of forces?

Anyway, I'll keep playing. Thanks again for the info.

- Ron

I'm new to Houdini (Apprentice - though I used Prisms a bit many years ago) and I'm trying to get the Resistance Pop to work in a simple car-driving-thru-snow/rain system, but I can't figure out how to point it to the geometry/SOP to use for the calculations/object surface.

Can anybody point me to a tutorial or tell me how to do this?
Can I wire some geometry into the Pop from inside the popnet?

TIA,
- Ron