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19 Nov 2024 15:55:56 EST (-0500)
  normal problem (Message 1 to 9 of 9)  
From: DC
Subject: normal problem
Date: 20 Nov 2001 11:23:20
Message: <3bfa8378@news.povray.org>
howdy all,
I made a rotational sweep in Moray, and the wood grain seems to follow the
normals just fine, but the light doesn't, is there something I'm not doing?
thanx,
DC


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From: Christoph Hormann
Subject: Re: normal problem
Date: 20 Nov 2001 11:39:51
Message: <3BFA8757.510AE65E@gmx.de>
DC wrote:
> 
> howdy all,
> I made a rotational sweep in Moray, and the wood grain seems to follow the
> normals just fine, but the light doesn't, is there something I'm not doing?

That does not seem to be a lathe object but a mesh, maybe check the POV
code.  

It's a perfectly normal appearance for meshes, see:

http://www.students.tut.fi/~warp/povVFAQ/TheShadowLineArtifact/

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: DC
Subject: Re: normal problem
Date: 20 Nov 2001 12:14:07
Message: <3bfa8f5f@news.povray.org>
thanx,
with all that in mind, is it unethical to make 2 pictures and cut 'n paste
the parts that are traced with the shadowless method into the other?
DC


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From: Christoph Hormann
Subject: Re: normal problem
Date: 20 Nov 2001 12:44:01
Message: <3BFA965E.32D3776B@gmx.de>
DC wrote:
> 
> thanx,
> with all that in mind, is it unethical to make 2 pictures and cut 'n paste
> the parts that are traced with the shadowless method into the other?

I don't think that's necessary, just have one instance of the object with
no_shadow and one with no_image.  

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: DC
Subject: Re: normal problem
Date: 20 Nov 2001 13:06:36
Message: <3bfa9bac@news.povray.org>
I just tested the idea and oops, It doesn't look like it will work anyway.
either way, some parts that should be shadowed aren't. it looks like I'll
just have to keep this in mind when I position certain things. I've noticed
too that the shadow's edge has less light then the ambience of the material.
is there a setting for this?
thanx again,
DC


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Q.jpg

Preview of image 'Q2.jpg'
Q2.jpg


 

From: DC
Subject: Re: normal problem
Date: 20 Nov 2001 13:37:25
Message: <3bfaa2e5@news.povray.org>
I can do the no shadow thing, but can't find where to do the no image.
thanx again,
DC


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From: Christoph Hormann
Subject: Re: normal problem
Date: 20 Nov 2001 13:42:23
Message: <3BFAA40E.1544C7FD@gmx.de>
DC wrote:
> 
> I can do the no shadow thing, but can't find where to do the no image.
> thanx again,
> DC

no_image is only available in megapov/Povray 3.5

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: DC
Subject: Re: normal problem
Date: 20 Nov 2001 21:52:59
Message: <3bfb170b@news.povray.org>
I've figured out an acceptable solution:
crank up the wireframe resolution on the parts that need it and presto!


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From: DC
Subject: Re: normal problem
Date: 21 Nov 2001 02:23:17
Message: <3bfb5665@news.povray.org>
oops, that's a reflection on the white thing,
DC


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