POV-Ray : Newsgroups : povray.binaries.images : Stone with Veins : Re: Stone with Veins Server Time
25 Jan 2022 18:47:58 EST (-0500)
  Re: Stone with Veins  
From: Thomas de Groot
Date: 31 Dec 2021 11:25:42
Message: <61cf2f06@news.povray.org>
My finish suggestion was not entirely correct. Better to use the 
following (as a material, btw):

#local S = .2;
#declare StoneColor =
material {
   interior {ior 1.6}
   texture {
     StoneColor
     finish {
       diffuse albedo 0.5 brilliance 1.5
       specular albedo 0.9*0.5 roughness 0.0025  //roughness 0.005 = 
less proeminent
       fresnel on
       reflection {0.01 0.1  fresnel on}
       conserve_energy
     }
     normal {granite .025 scale <S, S, S>}
   }
}

-- 
Thomas


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