Am 12.12.2010 06:47, schrieb Bidski:
> Does anyone know of a website or something that speaks of the optical properties
> of the other gems (rubies, sappphires, emeralds, etc)? By optical properties I
> basically mean the things we put in finish (diffuse, ambient, specular,
> roughness, brilliance, etc).

Finish information is all just a matter of how well the gem is polished; 
except for ambient, which is a kludge to simulate diffuse illumination 
coming from other objects - essentially the same job that radiosity does 
much better (albeit slower).

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