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"Norbert Kern" <nor### [at] t-online de> wrote:
> > Has anyone used a similar trick before? If yes, please show me the results.
>
>
> Hi Michael,
>
> four sources come into my mind -
>
> using camera with normals to distort an image as a whole are rare, but look at
> David Morgan-Mar Monet's Garden in Giverny
> http://www.irtc.org/ftp/pub/stills/1999-12-31/dmmonet.jpg
>
> two sources distort images via post-processing
>
> Tor Olav Kristensen Source code for "Using functions to distort images"
>
http://news.povray.org/povray.text.scene-files/message/%3C4470f87e%40news.povray.org%3E/#%3C4470f87e%40news.povray.or
g%
> 3E
>
> Samuel T. Benge aberrate36.pov
>
http://news.povray.org/povray.text.scene-files/thread/%3C49681241@news.povray.org%3E/?ttop=397431&toff=50
>
> Samuels code uses normals and dispersion, but not an ior different from 1.
>
> and the fourth source uses ior 1.4 and dispersion, but not normals - Tekno
> Frannansa photo-style short code
>
http://news.povray.org/povray.binaries.images/message/%3C489a283e%40news.povray.org%3E/#%3C489a283e%40news.povray.org
%3
> E
>
> Tek used some more effects in his winning IRTC entry Elements, but again - no
> normals - http://www.irtc.org/ftp/pub/stills/2005-10-31/elements.jpg
>
> So, your trick is imho new.
>
> By the way, thanks for your nice gallery. My personal favourite is "growth", but
> most of the others are very good too. The minimalistic style of your gallery
> reminds me a bit of Margus Ramst`s homepage (
> http://www.hot.ee/margusrt/eng/main.html ).
>
> So, keep on poving...
>
> Norbert Kern
Cool stuff. So many different ways to distort an image. How did you find all
that?
By the way: Your favorite, Growth, uses the very same distortion trick.
Michael Scharrer, https://mscharrer.net
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