POV-Ray : Newsgroups : povray.advanced-users : fog changes in pov 3.5 Server Time
25 Nov 2024 07:21:59 EST (-0500)
  fog changes in pov 3.5 (Message 1 to 4 of 4)  
From: Tek
Subject: fog changes in pov 3.5
Date: 19 Apr 2003 21:18:03
Message: <3ea1f54b$1@news.povray.org>
I'm trying to render one of my IRTC entries from last year, but I've hit a
problem: The original render was done using POV3.5 release candidate 2, and now
that I'm trying to render it with the final release of 3.5 the fog looks
different. The original effect was to have very tubulent fog, so that some
patches had almost no fog whilst others had quite a lot, but now I can't find
any setting that produces this much contrast.

So, has anything changed in the fog calculation since POV 3.5 RC 2?
If so, how can I make the scene look the same now?

Thanks in advance for any help.
--
Tek
http://www.evilsuperbrain.com


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From: Tek
Subject: Re: fog changes in pov 3.5
Date: 19 Apr 2003 21:26:31
Message: <3ea1f747@news.povray.org>
Actually, it might be something to do with gamma...

In any case, it's something that has changed since RC 2.

Any ideas?
--
Tek
http://www.evilsuperbrain.com


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From: Warp
Subject: Re: fog changes in pov 3.5
Date: 19 Apr 2003 21:51:13
Message: <3ea1fd10@news.povray.org>
Tek <tek### [at] evilsuperbraincom> wrote:
> very tubulent fog

  Try adding this to the beginning of the scene:

global_settings { noise_generator 1 }

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -


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From: Tek
Subject: Re: fog changes in pov 3.5
Date: 19 Apr 2003 23:20:33
Message: <3ea21201$1@news.povray.org>
It's a good idea, but it didn't work. The patterns in the fog altered but the
amount of contrast is still way too low.

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

"Warp" <war### [at] tagpovrayorg> wrote in message news:3ea1fd10@news.povray.org...
> Tek <tek### [at] evilsuperbraincom> wrote:
> > very tubulent fog
>
>   Try adding this to the beginning of the scene:
>
> global_settings { noise_generator 1 }
>
> --
> #macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
> [1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
> -1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -


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