During the Open-House event of the Department of Computer Science, October 18-19 1996, the Computer Graphics Group decided to put up a Turing-like test, inspired on the experiment of the original Cornell Box. It was not meant as a scientific graphics experiment, but just as a fun experiment to show non-graphics people what we try to achieve in global illumination. The setup was used since then at various other occasions as well.

So, we made a replica of the box, and showed a video-image of the box on a computer screen, together with three computer-rendered images (with RenderPark of course!). After people had picked their image, someone would take a seat in front of the box, and his (or her) head magically appeared in one of the pictures on the screen.

Okay, before we go any further, take a guess yourself and click on one of the four images below you believe is the real video output.