POV-Ray : Newsgroups : povray.general : dispersion bug... Server Time
5 Aug 2024 04:21:58 EDT (-0400)
  dispersion bug... (Message 1 to 4 of 4)  
From: Rafal 'Raf256' Maj
Subject: dispersion bug...
Date: 3 Nov 2002 16:42:03
Message: <Xns92BBE635440raf256com@204.213.191.226>
http://raf256.com/pov/bug/?id=1

All opinions, sugestions are welcomed, does somebody else also find this 
bug ?

-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M


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From: Christoph Hormann
Subject: Re: dispersion bug...
Date: 3 Nov 2002 17:15:32
Message: <3DC5A004.666EEC61@gmx.de>
Rafal 'Raf256' Maj wrote:
> 
> http://raf256.com/pov/bug/?id=1
> 
> All opinions, sugestions are welcomed, does somebody else also find this
> bug ?

I can reproduce both results but not randomly, the white version only
seems to occur in the windows version if the previous render was stopped
during radiosity pretrace.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 02 Nov. 2002 _____./\/^>_*_<^\/\.______


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From: Rafal 'Raf256' Maj
Subject: Re: dispersion bug...
Date: 3 Nov 2002 17:42:24
Message: <Xns92BBF070A58FAraf256com@204.213.191.226>
Christoph Hormann <chr### [at] gmxde> wrote in 
news:3DC5A004.666EEC61@gmx.de

>> All opinions, sugestions are welcomed, does somebody else also find this
>> bug ?
> I can reproduce both results but not randomly, the white version only
> seems to occur in the windows version if the previous render was stopped
> during radiosity pretrace.

Interesting, maye You can fix this bug ? It's quite annoying :-/

AFAIR restarting POV always helps, so maybe it's some kind of memory-
volation problem ?

-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M


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From: TinCanMan
Subject: Re: dispersion bug...
Date: 3 Nov 2002 20:15:55
Message: <3dc5ca4b$1@news.povray.org>
"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3DC5A004.666EEC61@gmx.de...
>
>
> Rafal 'Raf256' Maj wrote:
> >
> > http://raf256.com/pov/bug/?id=1
> >
> > All opinions, sugestions are welcomed, does somebody else also find this
> > bug ?
>
> I can reproduce both results but not randomly, the white version only
> seems to occur in the windows version if the previous render was stopped
> during radiosity pretrace.
>
> Christoph

i had came across this a long time ago during the beta test period and
submitted a bug report then, to no avail.

-tgq


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