Alembic Import issues
Open, NormalPublic

Description

System Information
Linux Mint

Blender Version
Broken: 2.77 7dc328e
Worked: (optional)

Short description of error

1.Alembic import not correct imports keyframes of animation of camera focal length
2.Imported animated alembic mesh not render motion blur with Cycles, even with correct "motion blur / Deformation flag" on and steps set to 12 (for example)

Exact steps for others to reproduce the error
Just Import alembic mesh to see not working motion blur with animated mesh
For the camera focal length error, just import an alembic file with animated camera focal length to see is not keyframed/animated at all.

Details

Type
Bug
Rod Tebisx (rod.vfx.td) triaged this task as "High" priority.Sep 2 2016, 10:59 PM
Rod Tebisx (rod.vfx.td) edited the task description. (Show Details)
Brecht Van Lommel (brecht) lowered the priority of this task from "High" to "Normal".Sep 2 2016, 11:53 PM

Thanks guys for reviewing this! :)

@Rod Tebisx (rod.vfx.td) for the motion blur case, are you referring to meshes with varying number of vertices (like fluids) or any kind of meshes? For the first case this is a known to-do with a patch in the works (D2388).

For the case teste, the vertex number is constant, so is it possible to calculate proper motion blur.
Anyway, as an additional step, please check if possible to import "v" vector attribute on points (v is velocity vector attribute coming from Houdini alembic) and use as motion vector to make Cycles 2.5D motion blur.

+1 on the motionblur! Also an option to scale the velocity would be nice, and maybe an option to choose the channelname that provides the velocity as it might be different depending on the app that creates the alembic. Thanks!