Since the head-mounted display would automatically take care of the pannng, how else could you or would you like to interact? Ideally it would follow realism as much as possible for the best immersion. That means indicating directions to move, touching/doing things, navigating menus or other non-realistic artifacts in your environment. I know that if I am immersed in a dark lonesome place, I don’t want any kind of HUD or menu visible, unless it is supposed to be there like wearing a helmet.
Stare-clicks are only a hack in my opinion, they slow the interface down too much and you can’t stare at an object if you actually want to!
I can see another approach tracks your real hand in space and maps it to a virtual hand (or a cursor with a limited kind of motion). The problem with everything not a mouse is that your arm or tongue or eyeball gets tired quickly. Your hand just rests on a mouse and small jogs are very stable and precise with only relaxed wrist motion. How do you improve on that?
Other ideas, comments, or diatribes? How else could VR bring something to life in Scratches (for example) that can’t be done on a normal PC display?
Remember, it is not a 3D engine like FPS games, so ideas like moving objects around like for real aren’t possible.