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- /* plastic.sl - Standard plastic 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.
- */
-
- surface k3d_plastic(float Ka = 1;
- float Kd = .5; float Ks = .5; float roughness = .1;
- color specularcolor = 1;
- )
- {
- normal Nf = faceforward(normalize(N), I);
- Oi = Os;
- Ci =
- Os * (Cs * (Ka * ambient() + Kd * diffuse(Nf)) +
- specularcolor * Ks * specular(Nf, -normalize(I), roughness));
- }
-