Bill Pragnell wrote:
> "Cousin Ricky" <ric### [at] yahoocom> wrote:
> 
>>I have found it surprisingly difficult to get color or reflectivity data for
>>the various metals.  There are plenty of descriptions of the quantum physics
>>behind metallic colors
> 
> difference just by eye. There is no such thing as a 'characteristic'
> reflectivity. Colour is the parameter to search for.

and RGB values for the colors are also not good enough if you
aim for physical accuracy, because they are actually the result
of both light source and material characteristics. Check out
http://www.ignorancia.org/en/index.php?page=Lightsys

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