"James Taylor" <jim### [at] blueyondercouk> schrieb im Newsbeitrag
news:3d64d01d@news.povray.org...

> -is there an isosurface solution? - although I have a slow computer and
the
> scene will be rendered with radiosity which may make the render time
> unacceptably long :(
>

I don't know exactly, what you want, but have a look at f_helix1() in
functions.inc. Perhaps f_helix2() will save you the need of an extra
cylinder in the middle. IMO, those functions don't render to slow, but I
might be used to it already.

Marc-Hendrik

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