Hi,

the idea is to do scene assembly in LOPs and render using Karma. Now I want to add an RBD sim as well as several more sims that interact with the environment. I noticed the LOPimport-SOP can only import one object at a time, but since the scene will have several hundred objects in the end, importing each object individually would be very inefficient. I tried to write out a USD file and importing that in SOPs which seems to work fine, but I am unsure if this is the correct approach.

How would you go about this? Or would you do scene assembly in SOPs and then scene import everything into Solaris or just use Karma ROP?

You can import several primitives at a time, and each primitive can include several objects. Just make sure all the objects you want to import are present in the LOP path you're importing.