The only thing changing in the scene for this animation is the position of the
light & it's corresponding glow object. i.e. the colour of the
lightsource(white) and atmospheric media(blue) never change. Cool, huh?

The way it works is that when the sun's low in the sky it shines through more of
the blue air, which scatters the blue components of the light so producing the
reds and yellows you see. I was amazed when I saw that megapov can model this
effect! It's not a perfect simulation of a sunrise, but it's pretty close :)

BTW, this is a development of the cloud image posted to p.b.i, but to get the
render times down I've replaced the cloud with a sphere. If any of you own a
really powerful PC and you want to try rendering this with the cloud, mail me,
it would be much appreciated. My PIII 550 would take days to do that.

Cheers.

--
Tek
http://www.evilsuperbrain.com

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Attachments:
Download 'SUNRISE.MPG' (230 KB)

In article <3b59d351@news.povray.org>, Tek says...
> The only thing changing in the scene for this animation is the position of the
> light & it's corresponding glow object. i.e. the colour of the
> lightsource(white) and atmospheric media(blue) never change. Cool, huh?
> 
> The way it works is that when the sun's low in the sky it shines through more of
> the blue air, which scatters the blue components of the light so producing the
> reds and yellows you see. I was amazed when I saw that megapov can model this
> effect! It's not a perfect simulation of a sunrise, but it's pretty close :)
> 
> BTW, this is a development of the cloud image posted to p.b.i, but to get the
> render times down I've replaced the cloud with a sphere. If any of you own a
> really powerful PC and you want to try rendering this with the cloud, mail me,
> it would be much appreciated. My PIII 550 would take days to do that.
> 
> Cheers.
> 
> --
> Tek
This is fantastic! A fascinating piece of animation :))

-- 
Regards,  Sander

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Very fascinating! :D

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated June 26)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk

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V. nice... I didn't think MegaPOV was capable of this either, what's the
trick ? Could you post the source ?

--
Scott Hill.
Software Engineer.
E-Mail        : sco### [at] innocentcom
Pandora's Box : http://www.pandora-software.com

*Everything in this message/post is purely IMHO and no-one-else's*

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> The way it works is that when the sun's low in the sky it shines through
more of
> the blue air, which scatters the blue components of the light so producing
the
> reds and yellows you see. I was amazed when I saw that megapov can model
this
> effect! It's not a perfect simulation of a sunrise, but it's pretty close
:)

Are you talking about using scattering media near the horizon?

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Thomas Lake <tla### [at] homecom> wrote in message news:3b5b481d@news.povray.org...
> Are you talking about using scattering media near the horizon?

Well, the whole sky is scattering media. You see that blue stuff? That's media
:)
The ground is a gigantic sphere, and the atmosphere is concentric around that.
The density of the atmosphere drops off linearly with the distance from the
ground.

--
Tek
http://www.evilsuperbrain.com

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Scott Hill <sco### [at] innocentcom> wrote in message
news:3b5ae500@news.povray.org...
>     V. nice... I didn't think MegaPOV was capable of this either, what's the
> trick ? Could you post the source ?

Certainly. It's in p.b.s-f (or it will be in about 5 minutes...).

--
Tek
http://www.evilsuperbrain.com

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Nice animation, but it's hardly a new concept - I've been using this in
my landscapes for about 3 years now (see my posts in p.t.s-f 'Hazy Days
...' 17th July 1998 and 'Media Clouds' 29th September 1998)

I did like your cloud image - good detail.

Bye for now,
	Mike Andrews.

Tek wrote:
> 
> The only thing changing in the scene for this animation is the position of the
> light & it's corresponding glow object. i.e. the colour of the
> lightsource(white) and atmospheric media(blue) never change. Cool, huh?
> 
> The way it works is that when the sun's low in the sky it shines through more of
> the blue air, which scatters the blue components of the light so producing the
> reds and yellows you see. I was amazed when I saw that megapov can model this
> effect! It's not a perfect simulation of a sunrise, but it's pretty close :)
> 
> BTW, this is a development of the cloud image posted to p.b.i, but to get the
> render times down I've replaced the cloud with a sphere. If any of you own a
> really powerful PC and you want to try rendering this with the cloud, mail me,
> it would be much appreciated. My PIII 550 would take days to do that.
> 
> Cheers.
> 
> --
> Tek
> http://www.evilsuperbrain.com
> 
>                   Name: SUNRISE.MPG
>    SUNRISE.MPG    Type: Atiplay File (video/mpeg)
>               Encoding: x-uuencode

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Michael Andrews <M.C### [at] readingacuk> wrote in message
news:3B5DAB8A.F2E83ABE@reading.ac.uk...
> Nice animation, but it's hardly a new concept - I've been using this in
> my landscapes for about 3 years now (see my posts in p.t.s-f 'Hazy Days
> ...' 17th July 1998 and 'Media Clouds' 29th September 1998)

Ah, well my newsgroups don't seem to show messages from back then (I only
started reading the pov newsgroups a few months ago). I didn't know other people
had managed to make sunsets using blue skies. Did you do that in POV or Megapov?
I had some trouble making pov do that a while ago, and only succeeded when I
recently started using megapov. Perhaps you could mail me your source?

> I did like your cloud image - good detail.

Thank you :)

--
Tek
http://www.evilsuperbrain.com

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