Optical Wonderful
Depth & Anamorphic Illusions
Illusions that manufacture a sense of depth where none exists - from street art painted to look three-dimensional from one angle, to hidden-image stereograms.
Depth
Anamorphic Chalk and Street Art Illusions
Street and chalk paintings drawn as heavily stretched, warped shapes that only resolve into a convincing 3D scene when viewed from one specific, carefully calculated angle.
Depth
Autostereograms ("Magic Eye" Images)
A flat pattern of repeating texture that, viewed with deliberately unfocused or crossed eyes, suddenly resolves into a hidden 3D shape floating above or below the page.
Depth
Chromostereopsis (Color Depth Illusion)
Flat patches of saturated red and blue, printed at the exact same distance from your eye, can appear to float at different depths purely because of how your eye focuses different wavelengths of light.
Depth
Hollow Face Illusion
A mask or model of a face, viewed from the concave (inside-out) side, still appears to bulge outward as a normal convex face - and even seems to turn and follow you as you move.