Tim Nikias wrote in message <3CA2113D.5B1C927E@gmx.de>...
>So, after fiddling with some macros and writing
>several mesh-creating algorithms (with
>surface-normals etc etc), I've used the
>fundamentals that were laid with the
>Gerbera WIP and created basic grass
>field. Its supposed to be part of a vegetation
>package, which should finally be able to simply
>vegetate a given heightfield with grass, flowers,
>trees etc.

Have you seen the "vegetate" include file at
http://www.geocities.com/Rengaw03/povray.html ?

--
Mark

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