Add velocity into Alembic loaded from external.

[saca]

hi,
the particle shape from other DCC tool with alembic file format,
the alembic do not have velocity data.

particles count changed frame by frame (has life-span, are delete by age), connectivity class id is changed frame by frame,
thus, i cannot track the velocity.

Alembic(delay_load?) -> Connectivity ->Trail(recompute_velocity)

do you have any way fo this case?

thanks

[Harper]

Hello, I know this post is super old but I am trying to do something similar, did you ever find a solution? 

[ryew]

If you have a consistent identifier on the points like 'id' value or similiar that doesn't change every frame then it can be done; if not and the point count changes every frame, then not really.  You can try uploading your file here, perhaps someone has a new solution to this old problem -it happens more than you'd think