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"Mike Williams" <nos### [at] econym demon co uk> wrote in message
news:vUM### [at] econym demon co uk...
> Wasn't it David Cameron who wrote:
> >
> >It would be nice to have an elliptical torus which worked in the general
> >case with all CSG operations, but your macro solves all my current
problems.
>
> The real parametric version I provided should work in all cases. It's
> only the quick approximation that uses a mesh.
>
I seem to have problems with the real parametic version you provided Mike.
I used it cut and pasted from your original post.
When I rendered the elliptical torus itself, I got this result:
http://www.camnet.myby.co.uk/images/eleptical_torus_test2.jpg
As you can see the torus seems to be "breaking up" in places.
When rendering my "cutter object" in several orientations, I got this
result:
http://www.camnet.myby.co.uk/images/p_etorus_test2.jpg
Similar results to the "param.inc mesh version".
When I render my "cutout from the UI surface", I get this result:
http://www.camnet.myby.co.uk/images/e_cutout_test2.jpg
As you can see, this introduces a line around the cutout and some "spotting"
near the inner part of the cutout.
Dave
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