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RCMetal.sl
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1995-03-22
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273 b
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18 lines
/*
* metal(): give a surface a metallic appearance
*/
surface
RCMetal (
float Ka = 1,
Ks = 1,
roughness = .25)
{
point Nf = faceforward(normalize(N), I);
point V = normalize(-I);
Oi = Os;
Ci = Os * Cs * ( Ka*ambient() + Ks*specular(Nf,V,roughness) );
}