POV-Ray : Newsgroups : povray.binaries.images : artifacts Server Time
17 Aug 2024 02:20:44 EDT (-0400)
  artifacts (Message 1 to 3 of 3)  
From: Kevin Loney
Subject: artifacts
Date: 1 Nov 2001 23:56:39
Message: <3be22787@news.povray.org>
Any suggestiongs on how to get rid of the artifacts under the red sphere?
I'm using tweaked Radiosity_OutdoorHQ settings from rad_def.inc

these are my settings

global_settings {
 assumed_gamma 1

 #if( PHOTONS )
  photons {
   spacing .01
   count 10000000
   jitter .5
  }
 #end

 #if( RADIOSITY )
  radiosity {
   pretrace_start 0.08
        pretrace_end   0.004
        count 750
        nearest_count 7
        error_bound .1
        recursion_limit 3
        low_error_factor .5
        gray_threshold 0
        minimum_reuse .015
        brightness 1
        adc_bailout .01/2
  }
 #end
}

thanks

--
Kevin
http://www.geocities.com/qsquared_1999/


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From: Christoph Hormann
Subject: Re: artifacts
Date: 2 Nov 2001 02:49:55
Message: <3BE25023.88D46960@gmx.de>
Kevin Loney wrote:
> 
> Any suggestiongs on how to get rid of the artifacts under the red sphere?
> I'm using tweaked Radiosity_OutdoorHQ settings from rad_def.inc
> 
> these are my settings
> 
> [...]

Reducing recursion_limit will help a lot, try recursion_limit 1 with a
higher error_bound (~0.5) or use recursion_limit 2 with count 1000 or
larger.  

BTW, without light sources, photons have no effect.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/


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From: JRG
Subject: Re: artifacts
Date: 2 Nov 2001 18:31:01
Message: <3be32cb5$1@news.povray.org>
Simply raise max_trace_level and eventually those polka dots will disappear.

--
Jonathan.


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