ALeX <no_@_address> wrote:
> looking for a while on how to make a realistic stone texture, I'm quite
> lost and confused in the textures seetings of POVray. I've tried with
> some normal bumps, granite or crackle but I'm quit unhappy with the results.

> Does anyone of you have nice stone texture that looks like clear
> limestone (not full white, but somewhat like rgb < 0.980, 0.925, 0.713>)
> or some tips for me to search in the best direction ?

Normals may not be good enough to make realistic limestone, if you want to
see it up close. Unless you're just making limestone blocks that won't be
too close to the camera, I suggest using an isosurface. Normal perturbation
'disappears' in shadow. See "The shadow line artifact" in the docs. Online
at http://www.povray.org/documentation/view/3.6.1/192/

You might want to have a look in p.b.i at the sandstone I did about a month
back and play with the colours.

http://news.povray.org/povray.binaries.images/thread/%3Cweb.4450ffd4fe18178f76ba2c900@news.povray.org%3E/

Also look in p.b.scene-files for some macros that Thomas de Groot did, based
on my code.

http://news.povray.org/povray.binaries.images/thread/%3C4461eb1c%40news.povray.org%3E/

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