POV-Ray : Newsgroups : povray.binaries.images : Fur and negative ior - 2 attachments Server Time
16 Aug 2024 06:17:57 EDT (-0400)
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From: Sven Heinzel
Subject: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 06:02:25
Message: <Xns91D87A6265D7CSirius666atgmxnet@sirius666.de>
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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Attachments:
Download 'furry-2002-03-10-low.jpg' (91 KB) Download 'negative-ior-2002-03-05-low.jpg' (34 KB)

Preview of image 'furry-2002-03-10-low.jpg'
furry-2002-03-10-low.jpg

Preview of image 'negative-ior-2002-03-05-low.jpg'
negative-ior-2002-03-05-low.jpg


 

From: Sam Benge(SamuelT)
Subject: Re: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 10:45:48
Message: <3c9a002c$1@news.povray.org>
I really like the radiating cone spheres, did you just rotate the individual
cones randomly?

~Sam

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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From: GrimDude
Subject: Re: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 10:56:38
Message: <3c9a02b6@news.povray.org>
Some of my favorite scenes are the simplest. In other words, I like the spheres image.
:)

Grim


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From: Slime
Subject: Re: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 12:36:27
Message: <3c9a1a1b$1@news.povray.org>
Oooh, they look like those soft koosh-koosh balls or whatever they're
called, the elasticy things. =)

- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]


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From: Kevin R 
Subject: Re: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 18:02:38
Message: <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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From: jimbobjim
Subject: Re: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 18:32:42
Message: <3c9a6d9a@news.povray.org>
"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?
>

Yes

here are some links for negative IOR and also semi-related 'slow' light

http://physicsweb.org/article/world/14/9/12  -IOR

http://physicsweb.org/article/world/14/9/8 - slow light

jim


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From: Slime
Subject: Re: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 18:32:55
Message: <3c9a6da7$1@news.povray.org>
> Is negative ior possible in real life?

No, indexes of refraction are always >= 1 in real life.

- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]


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From: GrimDude
Subject: Re: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 20:05:30
Message: <3c9a835a@news.povray.org>
Yes, but the likelihood of your ever coming across such a material is extremely low.

Grim


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From: Slime
Subject: Re: Fur and negative ior - 2 attachments
Date: 21 Mar 2002 21:48:53
Message: <3c9a9b95@news.povray.org>
Oops, apparently I'm wrong =) read the next few responses

- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]


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From: Kevin R 
Subject: Re: Fur and negative ior - 2 attachments
Date: 22 Mar 2002 00:12:48
Message: <3c9abd50@news.povray.org>
Cool!  Thanks!

- Kevin R.

"jimbobjim" <jim### [at] blueyondercouk> wrote in message
news:3c9a6d9a@news.povray.org...
>
> "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?
> >
>
> Yes
>
> here are some links for negative IOR and also semi-related 'slow' light
>
> http://physicsweb.org/article/world/14/9/12  -IOR
>
> http://physicsweb.org/article/world/14/9/8 - slow light
>
> jim
>
>
>
>


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