Hey, I'm trying to export an alembic of an RBD Bullet Fracture sim to be textured in Blender. The mesh (which is a phone)has different islands and they have separate material for example a different material for screen, camera, etc. I am very new to Houdini so please bear with me.
I use rop alembic exporter, it works perfectly in Blender but the only issue is that its in grey scale and since its in hundreds of pieces, i cant assign materials.

One way is to pre-group your geometry before fracturing. After the fracture, unpack the geometry and convert the groups into a primitive string attribute you can use to drive the hierarchy field on the output ROP.

This will provide you with a single object in Blender for each part you want to define.