I have a simulated water surface that an animal is splashing in being loaded into lops via the houdini ocean procedural in order to add more ripples to the zones outside the main splash. Currently the mesh is coming in through a sop import inside of the ocean procedural node. When i compute the final render rop, the file grows quite large and creates workflow bottlenecks.

I exported the water surface out of sops as a USD file and I'm trying to reference it inside the ocean procedural in order to avoid it getting copied again during my final render rop export that is sent to husk on our farm. The problem is that the ocean spectrum/ripples don't seem to get applied to the referenced geometry. I'm not sure if this is possible, but if it is, I suspect my sop to usd save is not including the group that the ocean spectrum is supposed to get applied to. Since usd does not support houdini's groups, what would be the proper way to convert them to some primvar that the lop context could access? Ideally a Geom Subset.

If this setup is not possible, then what would be the best approach to reference the finished water/spectrum without it getting copied again to the final rop used for rendering?