Category: mental ray > Texture
This shader creates cosine waves in U, V, and W directions, each with a programmable amplitude. (Frequency and offset can be controlled using a texture remapping base shader.) The result is a grayscale color, R=G=B=A, that can be remapped using a color map base shader. Its range is [o-s ... o+s], where s is the sum of the amplitudes and o is the offset.
See Texture Shaders for more information.