POV-Ray : Newsgroups : povray.binaries.images : weird dots?? Server Time
8 Aug 2024 06:21:08 EDT (-0400)
  weird dots?? (Message 1 to 7 of 7)  
From: roelof
Subject: weird dots??
Date: 1 Oct 2005 02:50:01
Message: <web.433e3078b66a8c49a8399d8d0@news.povray.org>
hi

This is (a part) of my IRTC enrty but there are some strange thingies wich i
cant explane. I is there anybody who can, or do i just have to live whit
it?
thanks already

roelof


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From: roelof
Subject: Re: weird dots??
Date: 1 Oct 2005 02:55:00
Message: <web.433e322fd5dbc2c6a8399d8d0@news.povray.org>
btw, this is the full version so far:


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From: Jaap
Subject: Re: weird dots??
Date: 1 Oct 2005 04:05:01
Message: <web.433e423dd5dbc2c6a8399d8d0@news.povray.org>
can they be part of the corner pices ?
or a shadow on the withe background ?
jaap.


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From: roelof
Subject: Re: weird dots??
Date: 1 Oct 2005 04:50:01
Message: <web.433e4d58d5dbc2c6a8399d8d0@news.povray.org>
"Jaap" <jws### [at] yahoocom> wrote:
> can they be part of the corner pices ?
> or a shadow on the withe background ?
> jaap.

nope double checked it but the corner pieces dont exit the box and the box
itself is made whit no_shadow.

roelof


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From: Michael Raiford
Subject: Re: weird dots??
Date: 1 Oct 2005 10:52:20
Message: <433ea2a4$1@news.povray.org>
roelof wrote:
> hi
> 
> This is (a part) of my IRTC enrty but there are some strange thingies wich i
> cant explane. I is there anybody who can, or do i just have to live whit
> it?
> thanks already
> 
> roelof
> 
> 
> 
> ------------------------------------------------------------------------
> 

Its a radiosity artifact. They're pretty tricky to get rid of. One of 
the things you can try is to rotate the camera slightly to see if you 
can get it to go away.


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From: Alain
Subject: Re: weird dots??
Date: 1 Oct 2005 11:24:31
Message: <433eaa2f$1@news.povray.org>
roelof nous apporta ses lumieres en ce 2005-10-01 02:45:
> hi
> 
> This is (a part) of my IRTC enrty but there are some strange thingies wich i
> cant explane. I is there anybody who can, or do i just have to live whit
> it?
> thanks already
> 
> roelof
> 
> 
> 
> ------------------------------------------------------------------------
> 
It looks like a radiosity artefact. At that point, the sampling hit the exact corner
spot and half 
the samples are taken inside the dark object.
You can try:
moving the camera a tyni but.
altering pretrace_start some from the default of 0.08.
using one more step in the pretrace: divide pretrace_end by 2
moving the whole room by a very small amount. Move both symetricaly.

-- 
Alain
-------------------------------------------------
WARNING: the crumsumpten of alcohol may Mack you tink you kan tpye reel gode


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From: roelof
Subject: Re: weird dots??
Date: 1 Oct 2005 12:40:00
Message: <web.433ebbb8d5dbc2c6a8399d8d0@news.povray.org>
i found the problem now its wasnt a radiosity artefact, it did had to do
with the corner cylinders. here it is: i didnt understand the problem
because there should be nothing there and it couldnt be a shadow because
the shadowless(no_shadow) box should stop the non-shadowless stuff inside,
but it doesnt!! so luckly the only shadow you could see came from the
cylinders and making them shadowless wouldnt affect the picture.
so problems solved and thanks for the help!!

btw: sinced i posted my image anyway, comments are welcome

roelof


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