ANAGLYPH
[noun]
the name given to the stereoscopic 3D effect achieved by means of encoding each eye’s image using filters of different (usually chromatically opposite) colours, typically red and cyan. Anaglyph images contain two differently filtered coloured images, one for each eye. When viewed through the “colour coded” “anaglyph glasses”, each of the two images reaches one eye, revealing an integrated stereoscopic image. The visual cortex of the brain fuses this into perception of a three dimensional scene or composition.
(via retazosdered)