Is it possible to add a subdivision surface value to mesh2. That way
imported files from programs like Wings3D could be smoothed in POV-ray? As
it is now I have to smooth my meshes in Wings before exporting and it makes
my computer lag as well as bloats the pov-file. Anywho, I know this is
possible in BMRT so I know it is at least possible.

Thanks,
Corey

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On Thu, 25 Jul 2002 21:14:57 -0400, "Corey Woodworth"
<cdw### [at] mpinetnet> wrote:

>Is it possible to add a subdivision surface value to mesh2. That way
>imported files from programs like Wings3D could be smoothed in POV-ray? As
>it is now I have to smooth my meshes in Wings before exporting and it makes
>my computer lag as well as bloats the pov-file. Anywho, I know this is
>possible in BMRT so I know it is at least possible.

Check out John VanSickle's Surface Subdivision Suite (SSS) for
POV-Ray. It's in the links on povray.org

(I hope I do remember the author - John, it's you, right?)


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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Peter Popov wrote:
> On Thu, 25 Jul 2002 21:14:57 -0400, "Corey Woodworth"
> <cdw### [at] mpinetnet> wrote:
>
> >Is it possible to add a subdivision surface value to mesh2. That way
> >imported files from programs like Wings3D could be smoothed in POV-ray?
As
> >it is now I have to smooth my meshes in Wings before exporting and it
makes
> >my computer lag as well as bloats the pov-file. Anywho, I know this is
> >possible in BMRT so I know it is at least possible.
>
> Check out John VanSickle's Surface Subdivision Suite (SSS) for
> POV-Ray. It's in the links on povray.org
>
> (I hope I do remember the author - John, it's you, right?)

It is John, yes. To use John's macros you need to import as .obj or .3ds
from wings and then convert to mesh (not mesh2) compress it with Warp's mesh
compressor and then you can use the macros. If you're a masochist you can
just import as mesh2 from wings and then 'feed' the macro the vertices and
face indices by hand :P

Still I would love to see POV do subdivision surfaces internally.

-------
-Jide

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Jide wrote:
> 
> It is John, yes.

Yes.  As the IRTC allows, I'm updating the macros, and working on a
modeler, too.  I managed to figure out a way to include four-sided
faces in the original mesh, along with three-sided faces, although
the four-siders will have to be coverted to triangles for the final
output.  It eliminates some artifacts of the Loop method when
applied to certain shapes.

I also hope to have support for sharp and border edges, which is
lacking in the present version.

> Still I would love to see POV do subdivision surfaces internally.

The best approach is using a technique that packages each face of the
original mesh with the other control points needed to make the triangles
that go with that face; this allows faces to be rendered independently
of the rest, at great memory savings.

Regards,
John

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