POV-Ray : Newsgroups : povray.beta-test : Radiosity problem with beta 15 Server Time
31 Oct 2024 21:22:46 EDT (-0400)
  Radiosity problem with beta 15 (Message 1 to 10 of 10)  
From: Alain
Subject: Radiosity problem with beta 15
Date: 30 Sep 2006 20:37:37
Message: <451f0dd1$1@news.povray.org>
Just tested a pure radiosity, no light_source, scene with the latest beta.
Everything that have an ambient of zero is black. Looks like radiosity is still 
broken or disabled.

-- 
Alain
-------------------------------------------------
I couldn't repair your brakes, so I made your horn louder.


Post a reply to this message

From: Bob H
Subject: Re: Radiosity problem with beta 15
Date: 4 Oct 2006 23:50:48
Message: <45248118$1@news.povray.org>
Yes, I wondered if there had been a change in the way it gets invoked, can't 
find anything about that possibility.

I noticed the render statistics does not show it, and I can't tell if light 
or vista buffer is being used. I tried turning those off and on but the 
render options in the message stream doesn't say anything for those either.


Post a reply to this message

From: Bob H
Subject: Re: Radiosity problem with beta 15
Date: 4 Oct 2006 23:59:49
Message: <45248335$1@news.povray.org>
Yes, I tried the scenes\radiosity examples. No radiosity shows in the 
rendering or messages.

Not sure if related but I also tried switching light or vista buffer on/off 
but those aren't listed in the render options of the message stream.


Post a reply to this message

From: Bob H
Subject: Re: Radiosity problem with beta 15
Date: 5 Oct 2006 14:33:41
Message: <45255005$1@news.povray.org>
Sorry for the repeated replies. POV had crashed and took the newsreader with 
it so I didn't think it got sent the first time. Only now getting back to 
giving POV beta 15 another look again.

Reason for the crash-- or, rather, more like a soft crash-- was apparently 
due to pretrace_end value being too small. I was trying to make changes to 
the pretrace to see if it had any affect, the render stalls and eventually a 
runtime error is displayed after closing the program.

I believe this is the same pretrace problem (pretrace_end less than 1 pixel) 
reported at:

http://news.povray.org/povray.beta-test/thread/%3C443034c9%241%40news.povray.org%3E/
or
443034c9$1@news.povray.org


Post a reply to this message

From: Thomas de Groot
Subject: Re: Radiosity problem with beta 15
Date: 7 Oct 2006 08:23:18
Message: <45279c36$1@news.povray.org>
"Alain" <ele### [at] netscapenet> schreef in bericht 
news:451f0dd1$1@news.povray.org...
> Just tested a pure radiosity, no light_source, scene with the latest beta.
> Everything that have an ambient of zero is black. Looks like radiosity is 
> still broken or disabled.
>
Same here

Thomas


Post a reply to this message

From: Ondrej
Subject: Re: Radiosity problem with beta 15
Date: 9 Nov 2006 13:15:00
Message: <web.45536efc3ce66410d80227fc0@news.povray.org>
Beta 16, same problem !!!


Post a reply to this message

From: Thorsten Froehlich
Subject: Re: Radiosity problem with beta 15
Date: 9 Nov 2006 13:28:10
Message: <4553733a@news.povray.org>
Ondrej wrote:
> Beta 16, same problem !!!

What a surprise given nobody claimed it had been fixed...

	Thorsten


Post a reply to this message

From: Bob H
Subject: Re: Radiosity problem with beta 15
Date: 9 Nov 2006 17:51:34
Message: <4553b0f6$1@news.povray.org>
I've seen this listed now as part of the "known issues" on the download 
page, however it has not been in the changes.txt file itself. Could be that 
people are mistaking the "Radiosity support is still alpha quality" in that 
text file as meaning it is actually functional to some degree.

I also notice this changes.txt from the beta 16 zip I downloaded, probably 
very near to its release, only tells of beta 14/14a and 15 differences yet 
nothing about 16.


Post a reply to this message

From: Thorsten Froehlich
Subject: Re: Radiosity problem with beta 15
Date: 9 Nov 2006 19:01:15
Message: <4553c14b@news.povray.org>
Bob H wrote:
> I've seen this listed now as part of the "known issues" on the download 
> page, however it has not been in the changes.txt file itself. Could be that 
> people are mistaking the "Radiosity support is still alpha quality" in that 
> text file as meaning it is actually functional to some degree.

Which it is, but only under very specific conditions, and only for a very
specific part of the radiosity process. Plus, iirc between when that
statement was made and now there was a new problem introduced that nobody
had the time to track down yet, but that further degrades the visual results.

	Thorsten


Post a reply to this message

From: Chris Cason
Subject: Re: Radiosity problem with beta 15
Date: 10 Nov 2006 08:59:57
Message: <455485dd$1@news.povray.org>
Alain wrote:
> Just tested a pure radiosity, no light_source, scene with the latest beta.
> Everything that have an ambient of zero is black. Looks like radiosity is still 
> broken or disabled.

It is working again in the upcoming beta 17 (not working correctly, but at
least working).


Post a reply to this message

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