Ruidong Cai

Tanto
Is there a reason why you don't want to raise your collision geo to the height of the water surface?

Yes, because my camera is front of the water surface, I can see the water interact with the collison geo, any way to do that？

How Maintain the initial particle position in sim?

I hava an sim with flip, I want to keep the particle postion, but also I want to made the collsion water splash outward how can I do that?

How could I use my group as matte in Karma render?

I has two group "inside" and "outside" in RBD geometry sop, I want to set this two group as my matte passed in Karma, hou can I do that? thanks!