POV-Ray : Newsgroups : povray.general : SkySphere not visible when using atmosphere Server Time
14 Aug 2024 05:22:25 EDT (-0400)
  SkySphere not visible when using atmosphere (Message 1 to 3 of 3)  
From: Stefan
Subject: SkySphere not visible when using atmosphere
Date: 1 Apr 1998 05:05:16
Message: <3522115C.6F5C@hsu1.hvu.nl>
Hi 2 all 3d freaks!

I think the subject is clear.
When I use atmosphere in a scene, my sky-sphere isn't visible anymore.
It turned into black. Does someone know what to do about this?

Thank you. 

Please mail your response to she### [at] pinet

Greetz, Stefan


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From: Nieminen Mika
Subject: Re: SkySphere not visible when using atmosphere
Date: 1 Apr 1998 17:55:05
Message: <6fugk9$iuc$1@oz.aussie.org>
Stefan (104### [at] hsu1hvunl) wrote:
: Hi 2 all 3d freaks!

: I think the subject is clear.
: When I use atmosphere in a scene, my sky-sphere isn't visible anymore.
: It turned into black. Does someone know what to do about this?

  Have you tried using a big box with dust halo instead of atmosphere?

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From: Alain CULOS
Subject: Re: SkySphere not visible when using atmosphere
Date: 2 Apr 1998 13:38:35
Message: <3523DB2B.53B7671F@bigfoot.com>
Hi Stefan,

I'm not a 3d freak yet, though I intend to be at some stage, but I still may be able
to help out a bit.
Your sky sphere is at an infinite distance from the camera, so it has to be black
unless you change the colour statement of the atmosphere and set the transmit value to
something less than one.
Then if your scattering value is too high everything will be flushed white, lower it
until you get the desired effect.
All this also depends on the distance you use, experiment with these values.

I did a try with a sphere in the center, radius 6, camera at about 30 units away,
light sources at about 30 units away as well, a Blue_Sky sky sphere, all worked well.
You really have to experiment.

Try the following and adjust depending on what you want to get :

atmosphere
{
  type 1
  distance 150
  scattering 0.003
  colour rgbt <0.4, 0.4, 0.4, 0.99>
}

I hope this helps,
Al.


Stefan wrote:

> Hi 2 all 3d freaks!
>
> I think the subject is clear.
> When I use atmosphere in a scene, my sky-sphere isn't visible anymore.
> It turned into black. Does someone know what to do about this?
>
> Thank you.
>
> Please mail your response to she### [at] pinet
>
> Greetz, Stefan

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