[mrguyorama]

TrackIR DOES do this. In flight simulator, with full 6dof, you can move your virtual head around and look under and around things

[winthrowe]

In my TrackIR config, I move my head left an inch, the projected head moves 6 inches. This is more useful than a even mapping in practice, but solidly breaks the 'looking through a window' illusion.