If you were looking out of a dense material into another less dense material
(for instance, out of water into air) then it would appear to have a
negative ior.  Also, if you had a vaccuum it would look like a negative ior
from our atmophere.

Stephen

"Kevin R." <$vjr#spam#iggle@mtcn$spam$et.net#> wrote in message
news:3c9a668e@news.povray.org...
> > The first one simulates fur with a lot of cones and the second image is
> > a testing with negative ior.
> Is negative ior possible in real life?
>
> - Kevin R.
>
> "Sven Heinzel" <tra### [at] sirius666de> wrote in message
> news:Xns### [at] sirius666de...
> > Hello,
> >
> > Just some small 'experiments':
> > The first one simulates fur with a lot of cones and the second image is
> > a testing with negative ior.
> >
> > On my raytracing homepage are high resolution versions of these images
> > and some more.
> >
> > Sven
> >
> > --
> > Homepages
> > Raytracing: http://www.sternenwanderer.com/
> > Gaming: http://www.sirius666.de/
> >
> >
>
>
> --------------------------------------------------------------------------
--
> ----
>
>
> >
> >
> >
>
>

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