POV-Ray: Newsgroups: povray.binaries.images: An interesting effect: An interesting effect

POV-Ray : Newsgroups : povray.binaries.images : An interesting effect : An interesting effect		Server Time 2 Oct 2024 22:24:01 EDT (-0400)

From: Bill DeWitt
Date: 14 Mar 2000 18:58:27
Message: <38ced223@news.povray.org>

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

isosurface {
                function {
                           (1/4*x^2-y)
                          +(1/4*z^2-y)
                         }
                threshold 0.5
                sign -1
                eval
                pigment { rgb 1 }
                finish { reflection 1 }

           }

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