"Sir Charles W. Shults III" wrote:
> 
>     Having done a lot of simulation and coding with long math functions, I find
> that after three or four steps, floating point roundoff creeps into a lot of
> functions.  This might be one source of that "surface speckle" or rough effect
> that some isosurfaces demonstrate.  That can cause a lot of trouble for ray
> tracing.
> [...]

I have never seen anything like this when working with isosurfaces, could
you give an example?

Christoph

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