When using Cinema 4D, I routinely attach AE layers to exported 3D nulls. And everything works as expected.
However, I have a project where camera and object are at angles and I need the AE layer to keep its orientation always pointing up, but still rotating around as normal.
(click to watch animation)
For this example below, the layer was linked normally to XYZ rotation and XYZ position of the null. But I manually keyframed the orientation (which I know is usually a no-no). Any expressions that would keep a layer level no matter the 3D rotation or 3D position? "Orient to Camera" doesn't work. I don't need the layer to always face the camera because it needs to rotate with the null
(click to watch animation)