> I previously considered writing such a macro, but i thought it would be
> much faster if done internally in POV - like the tesselation patch, which
> is still buggy (wasn't there someone who fixed that bug using a different
> algorithm recently?)

yes it is very slow if you use a small grid.. May be the macro can be
enhanced by using some sort of adaptive grid rather than a fixed one, but i
m afraid this is beyond my capacities :(

> BTW, it would be really nice if passing function names to macros worked,
> this string method looks quite horrible...

i agree :)

M

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