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- /* paintedplastic.sl - Standard texture map surface for RenderMan Interface.
- * (c) Copyright 1988, Pixar.
- *
- * The RenderMan (R) Interface Procedures and RIB Protocol are:
- * Copyright 1988, 1989, Pixar. All rights reserved.
- * RenderMan (R) is a registered trademark of Pixar.
- *
- * DESCRIPTION:
- * Apply a texture map to a plastic surface, indexing the texture
- * by the s,t parameters of the surface.
- *
- * PARAMETERS:
- * Ka, Kd, Ks, roughness, specularcolor - the usual meaning.
- * texturename - the name of the texture file.
- *
- */
-
- surface k3d_paintedplastic(
- float Ka = 1;
- float Kd = .5;
- float Ks = .5;
- float roughness = .1;
- color specularcolor = 1;
- string texturename = "";
- )
- {
- color Ct;
-
- if(texturename != "")
- Ct = color texture(texturename);
- else
- Ct = 1;
-
- normal Nf = faceforward (normalize(N), I);
- vector V = -normalize(I);
- Oi = Os;
- Ci = Os * (Cs * Ct * (Ka * ambient() + Kd * diffuse(Nf)) + specularcolor * Ks * specular(Nf, V, roughness));
- }
-
-