POV-Ray : Newsgroups : povray.binaries.images : Radiosity test Server Time
20 Oct 2026 03:41:26 EDT (-0400)
  Radiosity test (Message 1 to 16 of 16)  
From: Warp
Subject: Radiosity test
Date: 31 May 2000 12:05:15
Message: <3935383b@news.povray.org>
http://www.cs.tut.fi/~warp/radtest/

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


Post a reply to this message

From: Mr  Art
Subject: Re: Radiosity test
Date: 31 May 2000 12:38:41
Message: <39353FAD.D8DF63C0@gci.net>
Any chance to look at the code for this?

Warp wrote:
> 
> http://www.cs.tut.fi/~warp/radtest/
> 
> --
> main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
> ):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


Post a reply to this message

From: Tony[B]
Subject: Re: Radiosity test
Date: 31 May 2000 18:50:38
Message: <3935973e@news.povray.org>
Too much bleeding for me, and the intensity of the lights is a bit extreme.
Very interesting nonetheless. I recommend you check out:
http://www.3dluvr.com/marcosss/ There are some interesting radiosity tests
there. See "Cornell box with different lighting setups".


Post a reply to this message

From: Bob Hughes
Subject: Re: Radiosity test
Date: 31 May 2000 20:12:38
Message: <3935aa76$1@news.povray.org>
That spotlight with radiosity sure does have a drastic increase in render-time.
The radiosity renders are just too bright.  'brightness' turned up too much, or is
there
ambient used?

Bob


Post a reply to this message

From: Jamie Davison
Subject: Re: Radiosity test
Date: 31 May 2000 20:34:35
Message: <MPG.139fbe863337dca9896cf@news.stmuc.com>
Damn, I'd forgotten just how pretty a decent radiosity rendering could 
be...

*very* nice.

Especially the candle lit scene w/radiosity.

Bye for now,
     Jamie.


Post a reply to this message

From: SamuelT
Subject: Re: Radiosity test
Date: 31 May 2000 22:29:56
Message: <3935CB35.931C486B@aol.com>
The name 'Warp' has been appearing in the same sentence as radiosity
lately...

Good work on the radiosity scene. I personally like the color-bleeding, and
the spotlight image is the best one, IMO. You've gone and inspired me now, so
I've got to go have some fun playing with radiosity.


Warp wrote:

> http://www.cs.tut.fi/~warp/radtest/
>
> --
> main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
> ):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

--
Samuel Benge

E-Mail: STB### [at] aolcom

Visit my isosurface tutorial at http://members.aol.com/stbenge


Post a reply to this message

From: Doug Eichenberg
Subject: Re: Radiosity test
Date: 31 May 2000 23:13:48
Message: <3935d4ec@news.povray.org>
Did radiosity make such a drastic difference before MegaPOV?  Hmmm...


Post a reply to this message

From: Warp
Subject: Re: Radiosity test
Date: 1 Jun 2000 12:29:56
Message: <39368f84@news.povray.org>
Mr. Art <mr.### [at] gcinet> wrote:
: Any chance to look at the code for this?

  I added a link to the source code.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


Post a reply to this message

From: Warp
Subject: Re: Radiosity test
Date: 1 Jun 2000 12:30:48
Message: <39368fb8@news.povray.org>
Tony[B] <ben### [at] panamac-comnet> wrote:
: Too much bleeding for me, and the intensity of the lights is a bit extreme.

  Yes, I used a very high brightness setting for the images. Perhaps not
the most realistic result, but at least artistic.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


Post a reply to this message

From: Warp
Subject: Re: Radiosity test
Date: 1 Jun 2000 12:32:10
Message: <3936900a@news.povray.org>
Bob Hughes <per### [at] aolcom?subject=pov-news:> wrote:
: That spotlight with radiosity sure does have a drastic increase in render-time.

  No, the render time increase was due to more accurate settings for that
image. At lower settings there were some visible artifacts.

: The radiosity renders are just too bright.  'brightness' turned up too much, or is
there
: ambient used?

  Yes, I used a very high brightness. Perhaps not very realistic, but at
least artistic.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


Post a reply to this message

From: Warp
Subject: Re: Radiosity test
Date: 1 Jun 2000 12:32:44
Message: <3936902c@news.povray.org>
Doug Eichenberg <dou### [at] nlsnet> wrote:
: Did radiosity make such a drastic difference before MegaPOV?  Hmmm...

  Yes. It's faster, better and easier to use.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


Post a reply to this message

From: Tony[B]
Subject: Re: Radiosity test
Date: 1 Jun 2000 15:15:16
Message: <3936b644@news.povray.org>
>   Yes, I used a very high brightness setting for the images. Perhaps not
> the most realistic result, but at least artistic.

I can't deny that. :)   Did you check out the link?


Post a reply to this message

From: Margus Ramst
Subject: Re: Radiosity test
Date: 2 Jun 2000 17:36:48
Message: <39381B1B.FB851343@peak.edu.ee>
Warp wrote:
> 
> http://www.cs.tut.fi/~warp/radtest/
> 

In the second radiosity image, I notice some strange lighting where the
spotlight object touches the ceiling. IMO there shoudn't be such a bright spot
there. Any idea what's causing it? (I haven't looked at the source yet)

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg


Post a reply to this message

From: Warp
Subject: Re: Radiosity test
Date: 3 Jun 2000 09:38:21
Message: <39390a4c@news.povray.org>
Margus Ramst <mar### [at] peakeduee> wrote:
: In the second radiosity image, I notice some strange lighting where the
: spotlight object touches the ceiling. IMO there shoudn't be such a bright spot
: there. Any idea what's causing it?

  Yes: I have unrealistically bright radiosity settings. It makes objects
glow light by themselves (or more precisely, they reflect more light than
they receive).
  What you are seeing is just the white spotlight cylinder reflecting light
form the lit part of the scene. As I said, it reflects more than it receives,
so that is what is causing the effect.

  Btw, if I use realistic brightness in this image (ie. brigthness 1),
everything is nearly as dark as in the non-radiosity image.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


Post a reply to this message

From: Kari Kivisalo
Subject: Re: Radiosity test
Date: 27 Mar 2002 15:27:36
Message: <3CA22B32.4B9C5B98@luxlab.com>
This is from cornell.pov in the 3.5 beta. It works for this
type of scene :)

global_settings{
  assumed_gamma 1.0
  radiosity{
    pretrace_start 0.04
    pretrace_end 0.01
    count 200
    recursion_limit 3
    nearest_count 10
    error_bound 0.5
  }
}

_____________
Kari Kivisalo


Post a reply to this message

From: Chris Purdy
Subject: Re: Radiosity test
Date: 27 Mar 2002 15:34:56
Message: <3ca22cf0@news.povray.org>
Methinks I just jumped in the deep pool..... Sorry guys... I think I'm
wasting your time... :)  Now where was that newbie forum..

"Kari Kivisalo" <pro### [at] luxlabcom> wrote in message
news:3CA22B32.4B9C5B98@luxlab.com...
>
> This is from cornell.pov in the 3.5 beta. It works for this
> type of scene :)
>
> global_settings{
>   assumed_gamma 1.0
>   radiosity{
>     pretrace_start 0.04
>     pretrace_end 0.01
>     count 200
>     recursion_limit 3
>     nearest_count 10
>     error_bound 0.5
>   }
> }
>
> _____________
> Kari Kivisalo


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.