in news:3CFB8C05.B975BC40@gmx.de Christoph Hormann wrote:

> http://hotel04.ausys.se/pausch/comp/ppcomp.html
> 

For some basic programmes, based on the above. They seem easily 
convertable to POV-Ray SDL:
http://www.btinternet.com/~kburnett/kepler/

Ingo

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