Hello all,

I'm using Houdini 17.0.352 and working on flip sim with 1 flip solver and 2 sources.

I have a “whirlpool” and “splash” sources and I want them to react at each other and also whirlpool to react to the collision vdb node and splash to ignore that collision node.

Both sources has their own attribute and group name made in sop (so I was using groups to have different gravity by group or turbulence to affect only splash source, again with the group).

This “collision_vdb” gives me a great result for whirlpool, but it also affects splash source and I don't want that. It is “volume source” type of node and there is no group field which you can find in some pop nodes.

So, can I somehow tell the flip solver to make collision only between whirlpool and collsion_vdb and splash not to react to collision_vdb?

Thanks