Balls and Shadows illusion

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Balls and shadows illusion

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Copyright © 1996-2018 Alexander Bogomolny

Balls and Shadows Illusion

Human brain makes use of a variety of clues to interpet a retinal image. One is the perceived distance between an object and its shadow. Objects on the ground touch their shadows. Objects in the air appear higher up as the distance between them and their shadows grows.


  1. A. Seckel, The Art of Optical Illusions, Carlton Books, 2000 (#13)

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  • Height/Width Interplay
  • Assimilation Illusion
  • Brick Wall Illusion
  • Bulging Lines illusion
  • |Contact| |Front page| |Contents| |Geometry|

    Copyright © 1996-2018 Alexander Bogomolny