I wanted to share a similar issue and a fix in case others would encounter the problem.
tldr: Need to match source frame rates (of both the alembic and FBX) prior to exporting
Scenario:
- I have an alembic animation of a character holding a wand
- I also have an FBX animation of the wand (so that i can access the rig for VFX)
- In my case, the alembic was exported from blender, and the FBX from Houdini
Issue:
- The FBX wand animation is not aligned to the alembic wand
Investigation:
- Noticed that the alembic file had 30 FPS frame rate
- While the FBX animation had 24 FPS
FIX:
- I went back to Houdini, and fixed my scene’s frame rate from 24 to 30 fps:
- This is to match my blender alembic frame rate:
- Results:
NOTES
- Initially, I had to offset the FBX animation in the sequencer to start at frame 1 for it to match the alembic animation:
This is because my Houdini scene starts at frame 1 (by default). - The fix was to simply go back to the Houdini animation options again and set start frame to 0, then re-export the animation FBX.
