I want to render a complex object in povray, entirely from glass, but I
can't use meshes with interior {I_Glass}, because meshes don't have
interior and are not permitted in intersections because are not
infinite...  All glass objects from all demos I have seen are simple
objects like spheres, boxes etc,
but what about a HORSE?

thanks
Calin

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Calin Vatavu wrote:
> 
> I want to render a complex object in povray, entirely from glass, but I
> can't use meshes with interior {I_Glass}, because meshes don't have
> interior and are not permitted in intersections because are not
> infinite...  All glass objects from all demos I have seen are simple
> objects like spheres, boxes etc,
> but what about a HORSE?
> 

	IIRC uvpov has meshes with interior...

		Jerome

-- 
*******************************

* they'll tell you what can't * mailto:ber### [at] inamecom
* be done and why...          * http://www.enst.fr/~jberger
* Then do it.                 *
*******************************

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Having tried it just once there didn't seem to be a problem with regular
POV-Ray v3.1g and a triangle mesh with the interior {I_Glass} added to it.
UVPov is at: http://nathan.kopp.com/patched.htm just in case of a problem.

Bob

Jerome M. BERGER <jbe### [at] enstfr> wrote in message
news:381DE894.E480AE52@enst.fr...
> Calin Vatavu wrote:
> >
> > I want to render a complex object in povray, entirely from glass, but I
> > can't use meshes with interior {I_Glass}, because meshes don't have
> > interior and are not permitted in intersections because are not
> > infinite...  All glass objects from all demos I have seen are simple
> > objects like spheres, boxes etc,
> > but what about a HORSE?
> >
>
> IIRC uvpov has meshes with interior...
>
> Jerome
>
> --
> *******************************

> * they'll tell you what can't * mailto:ber### [at] inamecom
> * be done and why...          * http://www.enst.fr/~jberger
> * Then do it.                 *
> *******************************

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On Mon, 1 Nov 1999 13:38:22 -0600, omniVERSE wrote:
>Having tried it just once there didn't seem to be a problem with regular
>POV-Ray v3.1g and a triangle mesh with the interior {I_Glass} added to it.

This is exactly right.  Interiors work just fine with closed, well-behaved
meshes, and even with a union of triangles or bezier patches.  Interior 
won't work, however, if you have a single patch object or if the object
isn't closed or well-behaved (e.g. a Klein bottle)

-- 
These are my opinions.  I do NOT speak for the POV-Team.
The superpatch: http://www2.fwi.com/~parkerr/superpatch/
My other stuff: http://www2.fwi.com/~parkerr/traces.html

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Calin Vatavu wrote:
> 
> I want to render a complex object in povray, entirely from glass, but I
> can't use meshes with interior {I_Glass}, because meshes don't have
> interior and are not permitted in intersections because are not
> infinite...  All glass objects from all demos I have seen are simple
> objects like spheres, boxes etc,
> but what about a HORSE?
> 
> thanks
> Calin

A few months ago I posted and image of glass horse heads that were constructed
from a mesh. Even allowing for the fact that the mesh was open at the neck it
worked very well. As the others explained it will depend on how well behaved
the mesh it but I see no reason you should have problems with it. If you do
experience problems conversion programs like 3DWin and CrossRoads have a normal
flipping feature that can help correct for mesh surface normal problems.

-- 
Ken Tyler -  1100+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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Ken <tyl### [at] pacbellnet> wrote:
: A few months ago I posted and image of glass horse heads that were constructed
: from a mesh. Even allowing for the fact that the mesh was open at the neck it
: worked very well.

  Was it rendered with uvpov or the official povray?

-- 
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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Nieminen Juha wrote:
> 
> Ken <tyl### [at] pacbellnet> wrote:
> : A few months ago I posted and image of glass horse heads that were constructed
> : from a mesh. Even allowing for the fact that the mesh was open at the neck it
> : worked very well.
> 
>   Was it rendered with uvpov or the official povray?

It worked equally well in either though I will admit that the image I
posted here was with the first version offering the photon stuff. In
fact I ran into problems with trying to shorten the necks of the horse
by intersecting them with a plane but once I abondoned that attempt I
still had the results I wanted in either version.

-- 
Ken Tyler -  1100+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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On Tue, 02 Nov 1999 02:48:45 -0800, Ken wrote:

>It worked equally well in either though I will admit that the image I
>posted here was with the first version offering the photon stuff. In
>fact I ran into problems with trying to shorten the necks of the horse
>by intersecting them with a plane but once I abondoned that attempt I
>still had the results I wanted in either version.

Ya shoulda used clipped_by.

-- 
These are my opinions.  I do NOT speak for the POV-Team.
The superpatch: http://www2.fwi.com/~parkerr/superpatch/
My other stuff: http://www2.fwi.com/~parkerr/traces.html

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Ron Parker wrote:

> Ya shoulda used clipped_by.

Wudda, shudda, cudda, but didn't !

-- 
Ken Tyler -  1100+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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On Wed, 03 Nov 1999 01:24:32 +0100, merath <mer### [at] t-onlinede> wrote:

>my work is'nt a horse
>but it's a shell'y glass object

  Hi, merath. Nice shell object but you might want to read, "Where can I
post my binary or text file?" in the group:

povray.announce.frequently-asked-questions

  Please also consider posting smaller binary attachments, as a 353k file is
pretty sizable, even for our binaries.images group.

  Thanks for your help in keeping our groups organized.

-- 
Alan - ako### [at] povrayorg - a k o n g <at> p o v r a y <dot> o r g
http://www.povray.org - Home of the Persistence of Vision Ray Tracer

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