"Greg M. Johnson" wrote:
> 
> noise3d (x*f, y*f, z*f)*(R-sqrt(x^2+y^2+z^2))
> 
> Nope.  This is a solid sphere.
> I've used R=500 and a dozen orders of magnitude for f.
> 
> I've had a little luck with adding an "*f" term to the right side.  But this
> is not the concept, although intuitively the math must be VERY CLOSE....
> 
	What about noise3d(...)-sqrt(...)/R ?

		Jerome

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