> Hey guys, I'm looking for a function or pigment function that creates a single
> bump when added to an isosurface.  I've been tinkering with the spherical
> pigment but of course that adds or subtracts a full hemisphere of a sphere onto
> the surface.  Is there a way to modify this pigment or is there another function
> that creates a more bump like feature where the protrusion smoothly blends into
> the underlying surface?  I'd like a single occurence of the pattern because I'd
> like to control the placement of it, and I've been trying to avoid multiplying
> sphere functions together to create a blob like effect because it kills the
> rendering time and alters my surface in too many ways.  Any suggestions would
> be appreciated.
> 
> Skip
> 
> 
With the spherical pattern, you can change the wave type used.

You can try any of those:
sine_wave
cubic_wave
poly_wave


Alain

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