ABX wrote:
> 
> I do not have any measurements at hand but I'm pretty sure that while
> isosurfaces are indeed slow in general, rounded box is one of fastest and
> usefull application of them.

The idea that isosurfaces are inherently slow is completely wrong - in 
fact there are a lot of cases where isosurfaces are much faster than the 
analytical equivalent.  What probably makes people think this is that it 
is easy to make any fast isosurface very slow by using too large 
container, wrong max_gradient and accuracy or wrong function.

Christoph

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