Can Obi simulate a solid/liquid system and emulate discrete objects

[josemendez]

Perhaps I can generate a mesh with a triplanar material using a marching cubes implementation (or similar) using particle positions (I think I read that this is exposed by Obi) and just swap out the mesh for the fluid.
Or as you say, go with softbody as well and do something fully dynamic.

Cheers!!

Yes, Obi exposes particle positions (actually, all particle properties). See:
http://obi.virtualmethodstudio.com/tutor...icles.html