hi,

i have a anyoing problem.

as in the topic, i have a billowySmoke simulation set up.
First pyro sim drives some particles.
Then these particles are driving another pyro sim of the “real” smoke.
The particle driven one is the low res smoke simulation used for upres.
A ground plane is set up as a collision object.
All fine till this point.

Now, if i activate the uprespyro, to upres the particle driven low res simulation, the ground plane is ignored. the smoke just goes through ..
I'm sure, it's an easy mistake, or at least i hope so, but i can't figure it out. ^^

any clues?
would be much appreciated! ..

greetings,
towje