POV-Ray : Newsgroups : povray.unofficial.patches : Problem with UV_mapping and Mesh Server Time
2 Sep 2024 10:13:22 EDT (-0400)
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From: Fabian BRAU
Subject: Re: Problem with UV_mapping and Mesh
Date: 25 Apr 2000 14:13:16
Message: <3905E034.50E943C6@umh.ac.be>
I have truespace 2, I will have a look!

Fabian.


> 
> Fabian BRAU wrote:
> >
> > Ok I reformulate,
> >
> > practically, how one can use uv_mapping with mesh/mesh2?
> >
> > >   This usually is not made by hand but with a modeller program.
> >
> > There is a modeller which do this?
> >
> Yes, I guess that many modellers do this. I use Rhino (
> http://www.rhino3d.com ), export from it to 3DS format and convert with
> 3ds2pov to pov-ray mesh. Only drawback is that it costs $800 ($195 for
> students). (Trial version with 25 saves is free for download)
> 
> Perhaps mr. "Linkmaster" Ken has links to other modellers, with which
> uv-mapped objects could be created (truespace is one, that I know,
> versions 1 and 2 could be downloaded from some magasine site free, IIRC,
> but I'm not sure, whether with these versions it is possible, I have
> version 4.3 and it is possible to use uv-mapping from it in POV).


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From: Nathan Kopp
Subject: Re: Problem with UV_mapping and Mesh
Date: 25 Apr 2000 18:22:35
Message: <39061aab@news.povray.org>
Fabian BRAU <Fab### [at] umhacbe> wrote...
> Hello All,
>
> I have some trouble with UV_mapping and Mesh/Mesh2. All is ok with
> bicubic patch but with mesh, I cannot get the whole texture on the
> object even if I scale down??
> The code can be found at pov.bin.scene-file and the image at
> pov.bin.images. The code is long but you just need to look the lest
> lines of code.

Looks like this has been answered, but I'll say something anyways.

As mentioned before, the UV (also known surface texture coordinate)
information needs to be specified in mesh2 before it can be used.  Most
modelers that support 3ds export should include uv vector information, which
can then be converted to mesh2 using Thomas Baier's 3ds2pov.

-Nathan


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From: Fabian BRAU
Subject: Re: Problem with UV_mapping and Mesh
Date: 26 Apr 2000 03:42:01
Message: <39069DBF.5AE092A1@umh.ac.be>
Ok Thanks Nathan et all others :),

I have learnt something :).

Fabian.


> 
> Fabian BRAU <Fab### [at] umhacbe> wrote...
> > Hello All,
> >
> > I have some trouble with UV_mapping and Mesh/Mesh2. All is ok with
> > bicubic patch but with mesh, I cannot get the whole texture on the
> > object even if I scale down??
> > The code can be found at pov.bin.scene-file and the image at
> > pov.bin.images. The code is long but you just need to look the lest
> > lines of code.
> 
> Looks like this has been answered, but I'll say something anyways.
> 
> As mentioned before, the UV (also known surface texture coordinate)
> information needs to be specified in mesh2 before it can be used.  Most
> modelers that support 3ds export should include uv vector information, which
> can then be converted to mesh2 using Thomas Baier's 3ds2pov.
> 
> -Nathan


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From: Gilles Tran
Subject: Re: Problem with UV_mapping and Mesh
Date: 26 Apr 2000 06:16:45
Message: <3906C22A.B388B997@inapg.inra.fr>
To uv-map an object that doesn't have uv-mapping info, you need a tool that lets
you create a map. There are several of them, but the most popular is Steve Cox's
UVMapper, which can be found here :
http://home.pb.net/~stevecox/

Here the procedure.
1. convert the object to obj format (Crossroads)
2. create the map (UV mapper). You have several mapping possibilities.
3. save the obj in UVmapper to create the uv info
4. paint the map in your favorite painting tool
5. convert the obj to 3ds (3DS2Pov)
6. convert 3ds to pov mesh2
7. add the "#version unofficial Megapov 0.4;" statement at the top of the inc file

8. run Megapov


G.

Fabian BRAU wrote:

> Ok Thanks Nathan et all others :),
>
> I have learnt something :).
>
> Fabian.
>

> >
> > Fabian BRAU <Fab### [at] umhacbe> wrote...
> > > Hello All,
> > >
> > > I have some trouble with UV_mapping and Mesh/Mesh2. All is ok with
> > > bicubic patch but with mesh, I cannot get the whole texture on the
> > > object even if I scale down??
> > > The code can be found at pov.bin.scene-file and the image at
> > > pov.bin.images. The code is long but you just need to look the lest
> > > lines of code.
> >
> > Looks like this has been answered, but I'll say something anyways.
> >
> > As mentioned before, the UV (also known surface texture coordinate)
> > information needs to be specified in mesh2 before it can be used.  Most
> > modelers that support 3ds export should include uv vector information, which
> > can then be converted to mesh2 using Thomas Baier's 3ds2pov.
> >
> > -Nathan


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From: Fabian BRAU
Subject: Re: Problem with UV_mapping and Mesh
Date: 26 Apr 2000 07:31:14
Message: <3906D371.28640E86@umh.ac.be>
Thanks Gille,

I will try this :).

Fabian.


> 
> To uv-map an object that doesn't have uv-mapping info, you need a tool that lets
> you create a map. There are several of them, but the most popular is Steve Cox's
> UVMapper, which can be found here :
> http://home.pb.net/~stevecox/
> 
> Here the procedure.
> 1. convert the object to obj format (Crossroads)
> 2. create the map (UV mapper). You have several mapping possibilities.
> 3. save the obj in UVmapper to create the uv info
> 4. paint the map in your favorite painting tool
> 5. convert the obj to 3ds (3DS2Pov)
> 6. convert 3ds to pov mesh2
> 7. add the "#version unofficial Megapov 0.4;" statement at the top of the inc file
> 
> 8. run Megapov
> 
> G.
> 
> Fabian BRAU wrote:
> 
> > Ok Thanks Nathan et all others :),
> >
> > I have learnt something :).
> >
> > Fabian.
> >

> > >
> > > Fabian BRAU <Fab### [at] umhacbe> wrote...
> > > > Hello All,
> > > >
> > > > I have some trouble with UV_mapping and Mesh/Mesh2. All is ok with
> > > > bicubic patch but with mesh, I cannot get the whole texture on the
> > > > object even if I scale down??
> > > > The code can be found at pov.bin.scene-file and the image at
> > > > pov.bin.images. The code is long but you just need to look the lest
> > > > lines of code.
> > >
> > > Looks like this has been answered, but I'll say something anyways.
> > >
> > > As mentioned before, the UV (also known surface texture coordinate)
> > > information needs to be specified in mesh2 before it can be used.  Most
> > > modelers that support 3ds export should include uv vector information, which
> > > can then be converted to mesh2 using Thomas Baier's 3ds2pov.
> > >
> > > -Nathan


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From: Gilles Tran
Subject: Re: Problem with UV_mapping and Mesh
Date: 26 Apr 2000 07:42:03
Message: <3906D5F5.ABA295F5@inapg.inra.fr>
Fabian BRAU wrote:

> > 5. convert the obj to 3ds (3DS2Pov)
> > 6. convert 3ds to pov mesh2

Oops this should read :

5. convert the obj to 3ds (3DWin, 3dto3d (I use Poser for this !)
6. convert 3ds to pov mesh2 (3DS2Pov)

G.


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From: Warp
Subject: Re: Problem with UV_mapping and Mesh
Date: 26 Apr 2000 07:54:20
Message: <3906d8eb$1@news.povray.org>
Gilles Tran <tra### [at] inapginrafr> wrote:
: 6. convert 3ds to pov mesh2 (3DS2Pov)

  Where can I download this program?

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


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From: Gilles Tran
Subject: Re: Problem with UV_mapping and Mesh
Date: 26 Apr 2000 08:05:28
Message: <3906DBEB.FEEDFC89@inapg.inra.fr>
Warp wrote:

> Gilles Tran <tra### [at] inapginrafr> wrote:
> : 6. convert 3ds to pov mesh2 (3DS2Pov)
>
>   Where can I download this program?
>

Here :
http://www.stmuc.com/thbaier/tools.html
G.


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