05-23-2023, 01:50 PM
If you send me the Alembic file I can check the data, but unfortunately with the Alembic format you're at the mercy of the importer....and only some importers support dynamic material IDs (IDs that update each frame depending on topology). Older versions of Max don't, and it's possible Maya doesn't either.
If you have VRay installed, try loading the alembic file into a VRay Proxy object and assign your material so the IDs are visible...then scrub and see if they update properly. I've found that the VRay Proxy object is a pretty reliable importer and it tends to properly support dynamic properties.
If you have VRay installed, try loading the alembic file into a VRay Proxy object and assign your material so the IDs are visible...then scrub and see if they update properly. I've found that the VRay Proxy object is a pretty reliable importer and it tends to properly support dynamic properties.