RoundEdge 2.0 now has macros for rounded boxes with unequal edge radii.
As a bonus, a wrapper is added for POV-Ray's cryptic isosurface evaluate
In January of 2016, I posted an update to RoundEdge to correct a torus
artifact. More recently, while working on RoundEdge 2.0, I noticed that
I had made the torus change in February 2015, and didn't post it until
after clipka mentioned the artifact in December that year. Why did I
wait 350 days to post it?
I think it must have been that I was already working on the unequal edge
radii when I made the torus correction, and planned to roll out the fix
along with the new feature. But the unequal edge radii turned out to
have far more variations than I anticipated, so I put the whole update
on the back burner--until clipka's comment induced me to rethink holding
up the torus correction. A massive toothache in early 2015 may have
also been a factor in pausing development.
Well, it's 5 years later, and the new unequal edge macros are now
completed and uploaded.
An isosurface elliptical toroid is still on my wish list. Although I've
already implemented mesh toroids, they cannot be deformed or blobbed.
Back in 2008, Nicolas George proposed a function which, upon
implementation, I found unsatisfactory. (He projected lines from the
origin through the central ellipse, which I had previously determined to
be a bad approach.) In 2006, Sebastian H. posted a function that
appears to create the exact shape I desire, but I have been unable to
verify that the gradients are stable. Stable gradients would be
essential for isosurface blobbing.
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