I have a tracked camera in Blender that I want to export to Houdini. Here is how the track looks in blender:
Blender scene [drive.google.com]

After exporting this as an alembic and importing to Houdini, this is how the track looks:
Houdini scene [drive.google.com]

As you can see the camera track is pretty bad after importing to Houdini. I also tried importing the same alembic back to Blender. This worked great and the camera matched the footage nicely as in the first attachment.

I have matched the FPS as well, it's set to 30 both in Blender and Houdini.

So I'm wondering if anyone has seen this before and if there is any fix to this or if I'm doing anything wrong?

If I remember correctly Houdini camera aperture should match Blender Sensor Size (Camera -> Size) (see screenshot attached). And double check focal length of course.
I also suggest to try using USD format for exporting camera. It worked better for me.

Thanks a lot for the reply.
I believe I found the issue. In Blender, the camera sensor fit is set to vertical. I didn't find any way of setting this in Houdini. By changing the sensor fit to horizontal in Blender the same tracking issues as I'm having in Houdini occur.


I tried to export using USD, but I couldn't find out how to import it correctly.

My Houdini version is 21.0.440 if that helps.

I finally figured it out. I exported the USD file from Blender, checking convert orientation. Then I used the reference node in Houdini and selected the USD file. This imported the camera animation correctly.