POV-Ray : Newsgroups : povray.off-topic : strange problem with mesh2 objects Server Time
10 Oct 2024 21:16:17 EDT (-0400)
  strange problem with mesh2 objects (Message 1 to 5 of 5)  
From: H  Karsten
Subject: strange problem with mesh2 objects
Date: 23 Jan 2008 07:40:01
Message: <web.4797345375de28577d400d30@news.povray.org>
Sometimes, when I'm using high complex mech2 objects, I have "light areas" or
"light lines" in concave corners.

see picture

Note:
-this is not an effect of radiosity. (same effect, when I'm render without)
-I have the same effect in MegaPov and PovMan
-the mesh2 object has no normal entrys
-it has _only_ 90 degree corners
-when I'm turn the colour of the object to black the effect disappear
-sometimes it disappear, when I'm reduce the amount of objects in the scene.
This works also, when I'm using the merge{} command to combine several objects
into one.
-it seams to me, that I'm looking through the geometry onto the backside (or
inside) of the object.

Anybody knows a way to give the inside of a mesh2 object a different colour as
the  outside? (depending on the normals of the faces)

This might help to find the problem.

-holger-


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From: Tim Attwood
Subject: Re: strange problem with mesh2 objects
Date: 23 Jan 2008 13:11:12
Message: <47978340@news.povray.org>
> Anybody knows a way to give the inside of a mesh2 object a different 
> colour as
> the  outside? (depending on the normals of the faces)

inside_texture

maybe you have some very narrow "boxes" in your
mesh greeble?


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From: Tim Attwood
Subject: Re: strange problem with mesh2 objects
Date: 23 Jan 2008 13:13:09
Message: <479783b5$1@news.povray.org>
inside_texture
oops
 I meant interior_texture of course


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From: Nicolas Alvarez
Subject: Re: strange problem with mesh2 objects
Date: 23 Jan 2008 13:49:52
Message: <47978c50@news.povray.org>
povray.off-topic is for things not related to POV-Ray. You would get 
more help in povray.general.


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From: H  Karsten
Subject: Re: strange problem with mesh2 objects
Date: 24 Jan 2008 05:55:00
Message: <web.47986e758f72669a811410630@news.povray.org>
"Tim Attwood" <tim### [at] comcastnet> wrote:
> > Anybody knows a way to give the inside of a mesh2 object a different
> > colour as
> > the  outside? (depending on the normals of the faces)
>
> inside_texture
>
> maybe you have some very narrow "boxes" in your
> mesh greeble?

No, the model is completely coherent, corners are realy corners, absolute no
overlappings in the model.

I'll try interior_texture tanx :)


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