EMAIL : ae_plume@club-internet.fr NAME : Gilles Lévy TOPIC : Maths and Physic COPYRIGHT : I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT. TITLE : The Surface of Boy COUNTRY : France RENDERER USED : POVRAY 3.0 for Windows TOOLS USED : MORAY2.5 RENDER TIME : HARDWARE USED : Pentium 266Mhz IMAGE DESCRIPTION : Simply two representations of the Surface of Boy. This surface was created by Mr Boy in 1901. Imagine you paste the border of a disc on the border of a ruban of Moebius : you have the surface of Boy. The analytic definition of this surface was found in 1980. It can be seen as a set of ellipses. The surface has one pole and its courbure is null. DESCRIPTION OF HOW THIS IMAGE WAS CREATED : I used MORAY2.5 only to place the objects and have textures. The ability to make some programmation is the wonderfull thing I extensivly used. I'm aware of the lack of composition of this image, but i'm just decovered this competition last month. Finally, I'm VERY, VERY sorry for my poor english...