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Alembic cache screws up mesh
Closed, ResolvedPublic


System Information
Win7 64bit

Blender Version
Broken: 2.78c

Exact steps for others to reproduce the error

  • Open file
  • Export mesh as Alembic cache
  • Load cache in Mesh Sequence modifier and choose object path from the list
  • Disable Armature viewport render
  • Disable Mesh Sequence viewport render
  • Finally, enable Armature viewport render and see how mesh is screwed up

Revisions and Commits

Event Timeline

As you can see in the 2.79 release logs, a lot of Alembic improvements have been made since 2.78c. Can you try with a recent daily build from

Aaron Carlisle (Blendify) lowered the priority of this task from 90 to 30.Jun 2 2017, 11:46 PM

Unfortunately, v. 2.78.0-git.020bbbb-windows64 behaves the same.

Bastien Montagne (mont29) raised the priority of this task from 30 to Normal.Jun 16 2017, 4:06 PM

I can confirm this bug. The root cause is that the Mesh Sequence Cache modifier adjusts the vertices of the mesh directly. You can see this when you view the mesh in Edit Mode; the mesh will be deformed, instead of in the rest position as expected by the Armature modifier.