Hello,
I imported an Alembic file from Blender. Now I want to edit the camera animation. But I don't find any curves to edit.
Anyone can help?
Thanks
GZ

Alembic is a cache format. There might be a way in Houdini to rebake the camera motion to keyframes but aside from that use a different file format if you can.

Thanks a lot. I chose FBX, but before exporting, I had to do the following :

For export purposes, consider that the camera currently in Blender, doesn’t really have keyframes; it has a constraint whose origin comes from the markers. But in Houdini (or another 3D app), we want to recover the camera animation in order to get animation curves that we can correct. So we do the following:

* Select the camera and rename it to "CameraTracked".
* Duplicate the camera using **CTRL+C then CTRL+V**.
* This creates a new collection—rename it to **TrackingSetup_Cns2Curve**, and rename the child camera inside it to "CameraCns2Curve".
* With this new camera, go to the Outliner, expand the camera, then expand "constraints", select "camera solver", and in the properties panel below, click the button "Constraint to F-Curve".
* Open the Graph Editor to visualize the animation curves for position and rotation on XYZ axes.
* These curves can be corrected either in Blender or in the 3D application to which the scene will be exported.

then export to FBX

if you have to bake it in Blender anyway just to be able to export as fbx with curves, then it may be easier for you to use Bake Animation ROP to bake animation curves from Alembic camera to a new camera in Houdini, which will save you those manual steps

Thanks Tamte, I didn't know about this ROP.