Transform Cache Constraint

The Transform Cache Constraint is used to stream animations from Alembic made at the transformation matrix level (for example rigid bodies, or camera movements).

When importing an Alembic file, Transform Cache constraints are automatically added to objects with animated transforms. For time-varying meshes (so deforming animations), the Mesh Sequence Cache modifier is used.


Cache File

Data-block menu to select the Alembic file.

File Path

Path to the Alembic file.

Is Sequence

Whether or not the cache is separated in a series of files.

Override Frame

Whether to use a custom frame for looking up data in the cache file, instead of using the current scene frame.


The time to use for looking up the data in the cache file, or to determine which to use in a file sequence.

Manual Transform Scale

Value by which to enlarge or shrink the object with respect to the world's origin.

Object Path

The path to the Alembic object inside the archive.


Type of data to read for a mesh object respectively: vertices, polygons, UV maps and vertex color layers.