You are easily deceived by your visual system. Side vision is blurry. We have the illusion of seeing clearly everywhere because we move our eyes easily and frequently. Gray on a background gradient. Kanisza s triangle, illusory contours.
Visual system can be ambiguous.
Different apparently square shapes produce the same 2D projections. Monocular depth vision. Necker s triangle. Kanisza s triangle. The photographic account does not work because, roughly speaking, it would imply that your television can see.