File:Phantogram projection diagram.svg

Summary
Diagram illustrating how a solid object can be projected as a pair of anamorphic images onto a flat plane (e.g. a sheet of paper). The images, when viewed from the correct vantage point and through 3D glasses to present one image to each eye, produce the illusion of solidity by mimicking the visual cues of perspective and depth perception. This optical illusion is known as a phantogram.

Source
A two-point perspective illustration created by User:Matticus78 in CorelDRAW 12.

Revisions
Revision A: First release of image - 2nd August 2007

Revision B1: Corrected cropping and transparency - 2nd August 2007

Revision B2: Corrected export bug on contour line thickness - 2nd August 2007