What if the glasses had more than one view, for instance: 4 sections like a graph and each quadrant turned the image another 90º, would the brain be able to interpret more than one view?
Also, upside-down would be easy because when we are born we see everything inverted, then we adjust to see things rightside-up. When the light passes through the eye's lens it inverts it and hits the back of the eyeball upside-down, the brain knows how to interpret the image correctly this way for some reason.
Maybe other angles would just take more time since they would be new.
