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Marc Champagne wrote:
> Rob Hoopman <rob### [at] tuna nl> wrote in news:3d7a448a@news.povray.org:
>
<snip>
>
>
> I also googled quite a bit and coperniced also (to learn the art
> of diamond cutting).
>
> I'm getting close to my goal and all input is appreciated, thanks.
>
In that case:
http://www.gemology.ru/3dbook/eng/crypted/dif.html
seems like really detailed reflection data on diamonds, I wanted to use
this, but apart from the 17% value that could I took from the graph,
adjusting the exponent in an attempt to match this graph resulted in
worse results.
Another page with some info also refers to the 17% value:
http://www.christian-bernard.com/diamonds/brildef.htm
little tidbits about a number of optical properties of diamonds.
Rob
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