Layering Alembic Files

Alembic allows for layering different Alembic files on top of each other. This helps integrate UVs into a UV less geometry, or integrate animation into a static geometry.

Merge another Alembic file

1. Create a new Reference using Alt+C and choose Create Reference
2. Pick the base Alembic file
3. In the Reference Options, click the Alembic Layers control, and pick the layered Alembic file.

Note that the resulting file name is the concatenation of both files, separated by a '|' character.

You can create the reference using the Python API Modifier.createref function. The reference file name is the concatenation of the alembic file names using the '|' character.