Re: [PyOpenGL-Users] PyOpenGL and stereo

[Patrick H. <pa...@13...>]

On Mon, 2004-09-20 at 11:35 -0400, Yuichi Sakano wrote:
> Hi.
>=20
> My previous mail seems to have lacked some information. Sorry.
>=20
> I'm using a pair of liquid crystal shutter glasses (closing the=20
> shutters in front of the eyes alternately synchronizing with the CRT=20
> refresh rate). So, I'd like to present the graphics for the left and=20
> right eyes alternately synchronizing with the CRT refresh rate.

By combining PyOpenGL with PyJuggler
(http://www.vrjuggler.org/pyjuggler/), you can get support for this type
of stereoscopic rendering without any special coding.  The enabling and
disabling of stereo happens at the configuration level rather than at
the application level.

Unfortunately, the most recent releases of VR Juggler and PyJuggler have
not been tested on Mac OS X because I don't have access to any OS X
machine.  I'm trying to make use of the SourceForge compile farm's OS X
machines to address this limitation, but there have been login problems
with the compile farm during this past week.  Even then, I don't have
access to OS X 10.3--only 10.1 and 10.2.

As a fair warning, VR Juggler has fundamentally different goals than
GLUT, so the use of VR Juggler may not meet your expectations if you are
thinking it will behave like GLUT.  It will allow you to do stereoscopic
rendering without any special coding effort on your part, and it
supports multi-pipe and cluster-based systems pretty transparently if
you ever wanted to go that route.  For the use case you are describing,
however, the interaction functionality will probably not be what you
expect.

 -Patrick

> On 18 Sep 2004 at 11:59 PM, David Keeney wrote:
>=20
> > On 17 Sep 2004 at 16:40, Yuichi Sakano wrote:
> >
> >> Hi.
> >>
> >> Is anyone using stereo (not audio but vision) with PyOpenGL? I'm=20
> >> trying
> >> to using it, but I'm at a loss how to use it. If you have succeeded in
> >> it, would you let me know how (if possible, send the script) please?
> >
> > What hardware are you using for the stereoscopic vision?
> >
> > Take a look at stereo_zoe, which is a simple OpenGL rendering
> > engine adapted to show stereo graphics using Edimensional's LCD
> > glasses and top/bottom display mode.
> >
> > http://sourceforge.net/project/showfiles.php?group_id=3D110483&pac
> > kage_id=3D119667
> >
> > -or-
> > http://www.sourceforge.net/project/pduel
> >
> > David Keeney
> >
> >>
> >> Actually, I have checked the archive of this mailing list and found
> >> that Jack Jansen had sent a similar question mail.
> >> http://sourceforge.net/mailarchive/message.php?msg_id=3D1579199
> >> But no one seems to have responsed to it using this mailing list.
> >>
> >> I'm using Mac G4 (OS10.2.8, 866MHz-dual processors) and ATI RADEON
> >> graphics board.
> >> I can use stereo with C and OpenGL using a sample code.
> >> http://developer.apple.com/samplecode/GLUTStereo/GLUTStereo.html
> >>
> >> Thanks for any help.
> >>
> >> Yuichi
> >>
> >>
> >>
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> >
>=20
>=20
>=20
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--=20
Patrick L. Hartling                     | Research Assistant, VRAC
http://www.137.org/patrick/             | 2274 Howe Hall Room 2624
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