In article <38ced223@news.povray.org>, "Bill DeWitt" 
<the### [at] earthlinknet> wrote:

> While looking for the focal point of the parabola I found an unusual
> distortion.

Maybe increasing the accuracy or specifying the gradient would help...

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/

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