"jr" <cre### [at] gmailcom> wrote:
> hi,
>
> "LanuHum" <Lan### [at] yandexru> wrote:
> > Hi! I am interested in the question: is it possible to create a thread without a
> > mesh of triangles? We need a smooth surface of the thread in the picture
> > 38400x21600 (4K * 10)
>
> S Benge posted a macro which "To model a bolt or auger, you could use
> t_coil_solid to cut grooves into a cylinder".  hth.
>
>
<news.povray.org/povray.binaries.images/thread/%3C4c3fee0a%40news.povray.org%3E/?ttop=446838&toff=2350>
>
>
> regards, jr.

Thank you. I understand macros very poorly, but I can create a spiral from a
sphere_sweep. Then subtract the spiral from the cylinder. But, I want to achieve
a realistic profile.

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