Part III: Line Drawings and Perception

Impossible line drawings Victor Vasarely , XICO (silkscreen, 1973) The Penrose triangle (1958) Line drawings of impossible 3D objects show us that this coherence is not global. The Penrose triangle, inspired by the work of M.C. Escher, is perhaps the simplest of the impossible figures. At first, it appears like an ordinary object.

  Line, Perceptions, Drawings, Line drawings and perception, Line drawings