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From: Andrew Woodfin
Subject: How to make wireframe output?
Date: 1 Feb 2000 14:57:39
Message: <3897393C.516DA08F@uncc.edu>
Is there a way to generate a wireframe output image from a POV scene
file?

Curious,
Andy

--

--------------------
"I'm going to New York to try to break into public television!"
  -- Big Bird

Andrew Woodfin
UNC Charlotte Center for Precision Metrology
adw### [at] unccedu | http://www.coe.uncc.edu/~adwoodfi
--------------------


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From: Ken
Subject: Re: How to make wireframe output?
Date: 1 Feb 2000 15:10:12
Message: <38973D93.EB683D81@pacbell.net>
Andrew Woodfin wrote:
> 
> Is there a way to generate a wireframe output image from a POV scene
> file?

You really can't as an output function of POV-Ray. If you use a modeller
to design your scenes you can export to a 3D format that 3DWin can read
and it will allow you to create a wire frame representation but to do so
within POV-Ray itself would require you to make each individual frame
piece individualy. You can mimic the effect by using a proceedural texture
approach with clear pigment areas but it too would take a lot of extra
work to get everything lined up properly and I am not sure that it would
be possible with all shapes. Isopigments in MegaPov could help with this.

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/


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From: Andrew Woodfin
Subject: Re: How to make wireframe output?
Date: 1 Feb 2000 15:32:39
Message: <38974170.5C725B19@uncc.edu>
Hmmm... What kind of luck does one have importing .pov scene files into 3DWin?
If that works, I could get the wireframes out of 3DWin. I have a mess of
declares and loops in my scene file, so I don't know how well 3DWin would
parse it?

Andy

Ken wrote:

> Andrew Woodfin wrote:
> >
> > Is there a way to generate a wireframe output image from a POV scene
> > file?
>
> You really can't as an output function of POV-Ray. If you use a modeller
> to design your scenes you can export to a 3D format that 3DWin can read
> and it will allow you to create a wire frame representation but to do so
> within POV-Ray itself would require you to make each individual frame
> piece individualy. You can mimic the effect by using a proceedural texture
> approach with clear pigment areas but it too would take a lot of extra
> work to get everything lined up properly and I am not sure that it would
> be possible with all shapes. Isopigments in MegaPov could help with this.
>
> --
> Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
> http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

--

--------------------
"I'm going to New York to try to break into public television!"
  -- Big Bird

Andrew Woodfin
UNC Charlotte Center for Precision Metrology
adw### [at] unccedu | http://www.coe.uncc.edu/~adwoodfi
--------------------


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From: Ken
Subject: Re: How to make wireframe output?
Date: 1 Feb 2000 15:40:31
Message: <389744B3.A64C6BC8@pacbell.net>
Andrew Woodfin wrote:
> 
> Hmmm... What kind of luck does one have importing .pov scene files into 3DWin?
> If that works, I could get the wireframes out of 3DWin. I have a mess of
> declares and loops in my scene file, so I don't know how well 3DWin would
> parse it?

   3DWin will not import .pov files sorry. Basicaly you can't make solid
objects in POV-Ray and get a wire frame output. POV-Ray has no wireframe
pre-view mode.

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/


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From: Ken
Subject: Re: How to make wireframe output?
Date: 1 Feb 2000 16:11:12
Message: <38974BDE.BC70B12C@pacbell.net>
Ken wrote:
> 
> Andrew Woodfin wrote:
> >
> > Hmmm... What kind of luck does one have importing .pov scene files into 3DWin?
> > If that works, I could get the wireframes out of 3DWin. I have a mess of
> > declares and loops in my scene file, so I don't know how well 3DWin would
> > parse it?
> 
>    3DWin will not import .pov files sorry. Basicaly you can't make solid
> objects in POV-Ray and get a wire frame output. POV-Ray has no wireframe
> pre-view mode.

Just so you are not totaly confused by my answer you need to understand
the way that 3DWin makes wire frames. 3DWin reads 3D file formats that
are represented as triangles. When you ask it to output to POV-Ray wire
frame mode it connects each vertice of the triangles as a sphere/cylinder
combination and leaves the triangle out. You end up with a wire frame
representation this way. Very complex models with many triangles make
extremely large .pov files. You can also choose blobs instead of
spheres/cyls but those files are even larger.

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/


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From: Bill DeWitt
Subject: Re: How to make wireframe output?
Date: 1 Feb 2000 16:32:34
Message: <389750f2@news.povray.org>
"Andrew Woodfin" <adw### [at] unccedu> wrote in message
news:3897393C.516DA08F@uncc.edu...
> Is there a way to generate a wireframe output image from a POV scene
> file?
>

I know this isn't wire frame, but I was thinking some variation and
improvement upon this... and as usual, I don't get what I would expect.

#declare SphereTexture1 = texture

                                             pigment

                                                        gradient
camera_location
                                                        color_map {
                                                                   [ 0.0 rgb
0 ]
                                                                   [ 0.2 rgb
0 ]
                                                                   [ 0.2
rgbt 1 ]
                                                                   [ 1.0
rgbt 1 ]
                                                                  }
                                                         } }


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From: Jay Raney
Subject: Re: How to make wireframe output?
Date: 1 Feb 2000 18:27:28
Message: <3896A6D9.2E56E11E@usit.net>
Many (Probably most) 3d modelling software create the surfaces of their
models entirely from triangles, which have points connected by lines
which can easily be displayed as wireframe. POV on the other hand uses
Constructive Solid Geometry which represents the model as a finite
mathematical shape. Not a surface, but an interior and an exterior.
These models dont have points connected by lines and therefore arent
easily displayed as wireframe. Although the triangle and mesh objects do
use points and lines. The only way I can think of to do it would be to
use another program to convert POV source into sets of points and lines.

POV's modeling approch is in my opinion much more elegant though it
doesn't lend itself to this type of representation. Kind of a trade off
I guess.

Jay


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From: Peter Warren
Subject: Re: How to make wireframe output?
Date: 2 Feb 2000 03:39:05
Message: <3897ed29@news.povray.org>
Polyray does a nice job of this.
Moray and Pov as well.


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From: Nieminen Juha
Subject: Re: How to make wireframe output?
Date: 2 Feb 2000 03:49:23
Message: <3897ef93@news.povray.org>
Another VFAQ...

-- 
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: Ryan Mooney
Subject: Re: How to make wireframe output?
Date: 5 Feb 2000 01:21:52
Message: <389A721A.1B2560B7@earthlink.net>
Hey ken did you not make a wire frame looking R2D2 w/ HF...? Some time
ago..........................................
in a galaxy far far away...................
there long lived a pover............................
<heh,heh>??<
Ken wrote:

> Andrew Woodfin wrote:
> >
> > Is there a way to generate a wireframe output image from a POV scene
> > file?
>
> You really can't as an output function of POV-Ray. If you use a modeller
> to design your scenes you can export to a 3D format that 3DWin can read
> and it will allow you to create a wire frame representation but to do so
> within POV-Ray itself would require you to make each individual frame
> piece individualy. You can mimic the effect by using a proceedural texture
> approach with clear pigment areas but it too would take a lot of extra
> work to get everything lined up properly and I am not sure that it would
> be possible with all shapes. Isopigments in MegaPov could help with this.
>
> --
> Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
> http://home.pacbell.net/tylereng/index.htmlhttp://www.povray.org/links/


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