motion blur issue with arnold standin using alembic cache

[Anonymous]

when using alembic caches in an arnold standin the motion blur has harsh edges when compared to the motion blur you get from using the alembic cache directly. I am unable to get smooth motion blur have tried various cache substep settings and motion blur settings. Anyone know of a solution to fix this?

Below images with alembic cache with substep setting of 0.25

motion blur with alembic cache directly

motion blur with alembic in arnold stand in container

[Stephen.Blair]

the alembic procedural generates more keys for the motionblur, if you increase the motion keys in the render settings you should get a match