#manipulation of perspective

[speculative-whereabouts]

Here we see the execution of a illusion in a Ames Room.  The illusion uses a fixed viewing perspective to trick the audience to believe the men are of different heights.  Instead they are at varied distances from the camera.  The right of the room is much closer to the camera than the left.  

This is how the room is actually built to force this perspective and create the illusion: