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shaders/metal.sl

 

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/* metal.sl - Standard metal surface for RenderMan Interface.

 

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 * (c) Copyright 1988, Pixar.

 

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 *

 

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 * The RenderMan (R) Interface Procedures and RIB Protocol are:

 

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 *     Copyright 1988, 1989, Pixar.  All rights reserved.

 

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 * RenderMan (R) is a registered trademark of Pixar.

 

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 */

 

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surface

 

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metal (float Ka = 1;

 

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       float Ks = 1;

 

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       float roughness = .1;)

 

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{

 

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    point Nf = faceforward (normalize(N),I);

 

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/*      point Nf = normalize(N);*/

 

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    point V = -normalize(I);

 

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    Oi = Os;

 

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    Ci = Os * Cs * (Ka*ambient() + Ks*specular(Nf,V,roughness));

 

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}

 

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