Rename `Camera` objects
camera implies that this feature controls the projection matrices of the model.
If HTMLModelElementCamera wouldn't control the camera but the orientation.
Related question: in a VR / AR device, would this be something that the page will be able to control or even access? I imagine that in non-seated VR / AR, the UA would "pop out" the model into the user's virtual / real world and the user would be able to walk around the model. If this is something that the page can inspect, it'd be a way for it to learn about the user's pose, or am I missing something here?
Yes, it would pop out but it seems that the author would still want the ability to modify the orientation.