TITLE: Four skeleton polyhedra with spheres
NAME: Alexandre BUCHMANN
COUNTRY: FRANCE
EMAIL: abuchm7158@aol.com
TOPIC: Elements
COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT.
JPGFILE: 4ens2.jpg
ZIPFILE: 4ens2.zip
RENDERER USED: 
    povray 3.1 beta version

TOOLS USED: 
    IRFAN VIEW 2.8 to convert TGA to JPEG.

RENDER TIME: 
    44m

HARDWARE USED: 
    Pentium-120.


IMAGE DESCRIPTION: 


This is a composition with compounds of cubes.
The desk is from :
BADEL ET CIE
249, av. R. POINCARE
83700 SAINT-RAPHAEL
FRANCE
T_l. : 04 94 95 18 35 - Fax : 04 94 95 26 36



DESCRIPTION OF HOW THIS IMAGE WAS CREATED: 


The scene has been composed for povray beta version 3.1 for Windows.
I use the new function MACRO to programmate the followings macros :
- rotation : rotation matrix calculation.
In entry : one array and one counter. The array contains the data of
the rotations and the counter "increments" the rows of the array.
Each array's row is the data of a rotation. These data are :
X,Y and Z coordinates of a vector, angle of rotation.
The direction of the rotation is give by the joke corkscrew law.
- miny1, miny2, miny3, miny4.
You need these macros to calculate the exact value of the Y axis
translation to put a "rotationned" polyhedron on the plane Y=0.
The polyhedron is give by the X,Y and Z coordinates of its vertex.
The entry data are :
- the rotation(s) array(s),
- the polyhedron coordinates array.