The title pretty much says it all. How do you rotate a object around a custom transform orientation? I moved the object itself and just rotated it and that didn’t work. I parented the object to a empty and rotated the empty applying keyframes to the empty to try to make it work and no go. It starts in the correct position and ends up in the correct position but the movement in between is odd. It looks like it is trying to move along the custom transform orientation and the global orientation at the same time. How do get it to animate the rotation along the custom transform orientation only?
Transform orientation has to do with mismatch of axis between the controller object and controlled object.
Typically controller object get key framed at Global coordinate and that value gets passed on to controlled object. You don’t key frame the controlled object. So when the value gets passed down to controlled object, you need to have it clear how axis relates to each other. That is why it is critical to check off the proper axis and which coordinate system gets transformed.
Parenting is a whole different subject. Parent can move and rotate the child. But the child retains its own axis although it may get all out of alignment with the Global axis. Basically Parent transform the Childs axis.
Thank you for clearing that up a little. But I need to ask again. How do I specifically rotate a object around a custom transform orientation? What do I do? Do I rotate the object itself applying the key frames to the object? Do I parent the object to a empty and rotate the empty applying key frames to the empty? Is there a constraint that would fix this? Is there a modifier that would fix this? Is there a place in the graph editor to change which orientation is being used? How does one rotate an object around an axis that is not the global axis?