Yep,

param.inc renderes REALLY FAST ;) Not only that, but I found an error in the
equation definitions. Cool. I'll post an image, soon.

"Mike Raiford" <mra### [at] hotmailcom> wrote in message
news:4029190c@news.povray.org...
> This surface renders painfully slowly, is full of artifacts and doesn't
> quite look right:
>
> parametric
> {
>     function { sin(u * (  7 + cos( u/3 - 2*v) + 2 * cos( u/3 + v ) ) ) },
>     function { cos(u * (  7 + cos( u/3 - 2*v) + 2 * cos( u/3 + v ) ) ) },
>     function { sin( u/3 - 2*v ) + 2 * sin( u/3 + v) }
>     <-pi, -pi>, <pi, pi>
>     precompute 20 x, y, z
>     accuracy 0.0001
>     pigment { color red 1.0 }  finish { ambient 0.5 phong 0.8}
>     //rotate y*45
> }
>
> I had read many times that parametrics where slow... very slow, I didn't
> believe them until I tried one. I'm downloading the parametric inc
mentioned
> in one of the Isosurface tutorials.
>
> From all appearances, I'm going to take a wild guess that POV3.6 has  the
> same issues.
>
>

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