Cousin Ricky <ric### [at] yahoocom> wrote:
> On 04/03/2015 09:16 AM, And wrote:
> > This is the picture
>
> I've found tori to be artifact-prone whenever the major radius is less
> than the minor radius.  With negative major R, I've gotten bounding
> artifacts.  With zero major R, the entire object is one big coincident
> surface artifact.  With major R less than half minor r, I get artifacts
> with CSG merge, although I have found a workaround for my particular
> situation.  I suspect that this last artifact can show up with r > R >
> r/2, but I haven't tried to come up with such a scenario.
>
> These problems are probably due to the way the polynomial object works.
>   (The torus primitive is nothing more than a garden variety polynomial,
> with some optimized bounding.)
>
> Have you tried the sturm keyword?  (I'm really sleepy now, and haven't
> yet looked at your code.)

Ok, thank you. I will test it tomorrow.

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