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shaders/bumpy.sl

 

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/* bumpy.sl - Standard distant light source 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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displacement

 

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bumpy(

 

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        float Km = 1;

 

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        string texturename = "";)

 

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{

 

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        float amp = Km * float texture(texturename, s, t);

 

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        P += amp * normalize(N);

 

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        N = calculatenormal(P);

 

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}

 

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