> scott <sco### [at] scottcom> wrote:
>
>> Note that there are two distinct types of "round" being discussed, it's
>> important not to confuse them. The first is the "CAD" type of perfect
>> round that is formed by conceptually rolling a sphere (of radius equal
>> to the round you want) along the edge. The second is this type of
>> "artistic" round that smoothly blends the two shapes, but is not
>> necessarily possible to accurately specify the round radius (or it might
>> not even be constant throughout the round).
>
> My point exactly when I wrote:
>
>>> (The calculation might be faster with cubic; the corners would not be exactly
>>> circular, but would anyone notice or care?)
>
> Maybe we could go further and, with an extra optional parameter, change the
> profile of the rounding from a rounded bevel to a "V" shape?

I don't think the method you are suggesting is capable of generating 
correct rounds (with constant radius curvature and tangent to both 
faces) nor creating a constant "V" profile (a bevel). But willing to be 
proved wrong, give it a go with some simple shapes and isosurfaces/blobs 
and see what you get. If you're on to something then some working 
example code will go *far* further than just a text description.

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