Hi,

Well I try to go for a Dop sim inside a foreach sop. and get some wired results. Is there anything I a have to be aware of?

Enclosed my test file.

Well that's a pretty outrageous idea, what would you use this for? Couldn't an RBD Point Object do this?

I would use this in a forest system… well the good thing is I'am not addicted to this soultion…but I was just interested if that works at all.

Things don't work that way in a ForEach SOP.

The ForEach SOP is evaluating the SOP tree for each iteration and after each iteration, returns a result, clears up memory and re-enters again fresh.

DOPs is the exact opposite in that it doesn't know to cache multiple simulations inside the ForEach SOP. DOPs just can't pick up where it left off with prim 2 after it has finished processing prim 1 on the same frame. It is not aware of the ForEach SOPs behaviour.

CHOPs also have the same limitation btw.