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Damnd good image for a test render, bigger and it'd be
my wallpaper.
--
Cheers
Steve email mailto:sjl### [at] ndirect couk
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.ndirect.co.uk/~sjlen/
or http://start.at/zero-pps
11:36pm up 8:14, 3 users, load average: 2.00, 2.09, 2.09
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From: Peter Warren
Subject: Re: Touch of grey (new cloud technique 512x384)
Date: 8 Feb 2000 08:41:37
Message: <38a01d11@news.povray.org>
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SamuelT. wrote in message <3897D000.7448E045@aol.com>...
>Questions, comments?
Why is the sky blue?
Very nice.
>Visit the still unfinished isosurface tutorial:
>http://members.aol.com/stbenge
Do you really mean this?
It's already on my friggin' hard drive downstairs.
But, if you really mean it, yea, I'll visit.
Peter Warren
war### [at] hotmailcom
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From: Peter Warren
Subject: Re: Touch of grey (new cloud technique 512x384)
Date: 8 Feb 2000 08:55:14
Message: <38a02042@news.povray.org>
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David Fontaine wrote in message <3898F9EA.6CD7652D@faricy.net>...
>Progress seems to be a little slow... :-)
What are you from the midwest or something...:-)
Peter Warren
war### [at] hotmailcom
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From: TonyB
Subject: Re: Touch of grey (new cloud technique 512x384)
Date: 8 Feb 2000 09:58:56
Message: <38a02f30@news.povray.org>
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>Why is the sky blue?
Because the air refracts the sunlight, creating what we see as sky color.
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TonyB wrote:
>
> >Why is the sky blue?
>
> Because the air refracts the sunlight, creating what we see as sky color.
This is not an effect of refraction but, if I remember right ,the colour
blue is in addition a polarisation effect while the "lightness" depends
on the scattering. The air molecules scatter the light. If you look up
then the effect is the smallest and the sky the more blueish. If you
look at the horizion the light has more atmospheric length to scatter so
that the sky shows more of a light blue there.
Marc
--
Marc Schimmler
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On Tue, 8 Feb 2000 09:59:09 -0500, "TonyB" <ben### [at] panamac-comnet>
wrote:
>>Why is the sky blue?
>
>
>Because the air refracts the sunlight, creating what we see as sky color.
Refraction is not the keyword here. Rayleigh scattering is responsible
for the color of the sky.
Peter Popov
pet### [at] usanet
ICQ: 15002700
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Peter Warren wrote:
> David Fontaine wrote in message <3898F9EA.6CD7652D@faricy.net>...
> >Progress seems to be a little slow... :-)
>
> What are you from the midwest or something...:-)
What's that supposed to mean?
--
___ ______________________________________________________
| \ |_ <dav### [at] faricynet> <ICQ 55354965>
|_/avid |ontaine http://www.faricy.net/~davidf/
"Sitting on a cornflake, waiting for the van to come" -Beatles
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Actually, if you want to get technical, space isn't black in this scene, it's
blue :P
Peter Popov wrote:
> On Tue, 8 Feb 2000 09:59:09 -0500, "TonyB" <ben### [at] panamac-comnet>
> wrote:
>
> >>Why is the sky blue?
> >
> >
> >Because the air refracts the sunlight, creating what we see as sky color.
>
> Refraction is not the keyword here. Rayleigh scattering is responsible
> for the color of the sky.
>
> Peter Popov
> pet### [at] usanet
> ICQ: 15002700
--
Samuel Benge
E-Mail: STB### [at] aolcom
Visit the still unfinished isosurface tutorial: http://members.aol.com/stbenge
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From: TonyB
Subject: Re: Touch of grey (new cloud technique 512x384)
Date: 9 Feb 2000 20:58:33
Message: <38a21b49@news.povray.org>
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>Refraction is not the keyword here. Rayleigh scattering is responsible
>for the color of the sky.
I'm only repeating what I learned in school. I seem to have been
misinformed. It shouldn't happen again. (I'll just keep my mouth shut).
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On Wed, 9 Feb 2000 12:37:22 -0500, "TonyB" <ben### [at] panamac-comnet>
wrote:
>>Refraction is not the keyword here. Rayleigh scattering is responsible
>>for the color of the sky.
>
>
>I'm only repeating what I learned in school. I seem to have been
>misinformed. It shouldn't happen again. (I'll just keep my mouth shut).
It's a good thing my dad is well into physics and optics because he
explained to me the differences between the Mie and Rayleigh
scattering models when they were first introduced in POV 3.0. Not that
I was ever able to put them to good use, mind you.
Peter Popov
pet### [at] usanet
ICQ: 15002700
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