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A 3D ambigram is a design where an object is presented that will appear to read several letters or words when viewed from different angles. Such designs can be generated using constructive solid geometry , a technique used in solid modeling , and then physically constructed with the rapid prototyping method.
Ambigram: A calligraphic design that has multiple or symmetric interpretations. Ames room illusion An Ames room is a distorted room that is used to create a visual illusion. Ames trapezoid window illusion A window is formed in the shape of a trapezium.
In studying geometry one concentrates on the position of points and on the length, orientation and curvature of lines. Geometrical–optical illusions then relate in the first instance to object characteristics as defined by geometry.
Comics The Upside Downs of Little Lady Lovekins and Old Man Muffaroo - At the house of the writing pig by Gustave Verbeek containing ambigram sentences, 1904 Drawing of reversible female face by Rex Whistler , with ambigram ¡OHO! . 180° rotational symmetry.
The 3D effects in the example autostereogram are created by repeating the tiger rider icons every 140 pixels on the background plane, the shark rider icons every 130 pixels on the second plane, and the tiger icons every 120 pixels on the highest plane. The closer a set of icons are packed horizontally, the higher they are lifted from the ...
A 3D-printed version of the Reutersvärd Triangle illusion. M.C. Escher's lithograph Waterfall (1961) depicts a watercourse that flows in a zigzag along the long sides of two elongated Penrose triangles, so that it ends up two stories higher than it began. The resulting waterfall, forming the short sides of both triangles, drives a water wheel.
English: Ambigram ¡OHO! and drawing of reversible female face by Rex Whistler, 1946 (but created before since the artist was dead in 1944), up and down. 180° rotational symmetry. The face of a young woman changes into a grandmother.
Photomontage featuring an ambigram "Escher" and reversible tessellation background. Drawing Hands is a lithograph by the Dutch artist M. C. Escher first printed in January 1948. It depicts a sheet of paper, out of which two hands rise, in the paradoxical act of drawing one another into existence. This is one of the most obvious examples of ...