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The waves pattern was originally designed only to be used as a normal pattern. It makes the surface
look like waves on water. The waves pattern looks similar to the ripples pattern except the
features are rounder and broader. The effect is to make waves that look more like deep ocean waves. The waves radiate
from 10 random locations inside the unit cube area <0,0,0> to <1,1,1>. Scale the pattern to make the
centers closer or farther apart.
Usually the waves from any given center are about 1 unit apart. The frequency keyword changes the
spacing between waves. The phase keyword can be used to move the waves outwards for realistic animation.
The number of wave centers can be changed with the global parameter
global_settings { number_of_waves Count }
somewhere in the scene. This affects the entire scene. You cannot change the number of wave centers on individual
patterns. See section "Number_Of_Waves" for details.
When used as a normal pattern, this pattern uses a specialized normal perturbation function. This means that the
pattern cannot be used with normal_map, slope_map or wave type modifiers in a normal
statement.
When used as a pigment pattern or texture pattern, the waves pattern is similar to normal waves but is
not identical as are most normals when compared to pigments.
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