Follow these steps to save your meshes' crease information to an Alembic file.
Note: In Maya 2015 Extension and later, turn on
Write Creases in the Alembic Export window to export creases. To open this window, select
Cache > Alembic Cache > Export All/Selection to Alembic >
. For more information, see
Alembic Export Options.

To export mesh creases to an Alembic file
- Select the transform node of the mesh that you want to export an Alembic file.
- Add the Sub Division Mesh attribute to the mesh's shape node by doing the following:
- In the Attribute Editor, select Attributes > Add Attributes.
- In the Add Attribute window, under New, type SubDivisionMesh beside Long name.
- Under Data Type, select Boolean.
- Click OK.
Maya adds a Sub Division Mesh attribute to the node's Extra Attributes section.
- In the Extra Attributes section, turn on Sub Division Mesh.
- In the
Animation menu set, selectCache > Alembic Cache > Export All/Selection to Alembic >
.
- In the
Alembic Export window, expand the
Attributes section.
Under Attribute, select SubDivisionMesh, and then click Add.
- Click Export Selection or Apply.
When you export your geometry to an Alembic cache, the object's crease information will be included in the Alembic file.