[Chimera-users] Zalman 3D/stereo monitors

Greg Couch gregc at cgl.ucsf.edu
Fri Sep 11 10:38:52 PDT 2009

The bottom line is that the stereo on the new 3D LCDs will work with
chimera on newer and some older Macs (and almost all PCs).

Chimera has a special camera mode, "row interleaved stereo", that chimera
uses to generate an interlaced image that the Zalman (Hyundai, Miracube,
etc.) 3D LCD monitor displays in stereo, and the technique should work
with any graphics card on OS X, Windows, or Linux.  However, some older
Macs have a buggy graphics driver that Apple hasn't fixed (maybe won't
ever fix), so depending on what graphics card you have, it may or may not
work.  We are still in the process of figuring out what the exact bug is
and might have a workaround for the 1.4 release.

To see if it will work without buying a 3D LCD monitor, display a model in
chimera that has some depth, and switch the camera to "row interleaved
stereo".  Then on the left and right edges (where the left and right eye
images diverge the most), you should see a feathering effect where
alternating rows do not match up.  IF you see the effect, your setup will

For completeness, if you have a workstation graphics card (ATI
FireGL/FirePro, NVidia Quadro FX) on your Windows or Linux computer, then
you can configure the graphics driver to do the row interleaving, and use
chimera's "sequential stereo" camera mode.  That will ensure that all of
chimera's graphical features work, in particular, silhouette edges don't
work in the "row interleaved stereo" camera mode.

	- Greg

On Thu, 10 Sep 2009, Dougherty, Matthew T. wrote:

> The new 3D LCDs (e.g., Zalman, Hyundai) create stereo through circular
> polarization that require passive glasses.  But these monitors are
> working at no greater than 75hz.
> The bottom line question is: if I buy one of these units to replace my
> view sonic CRT, will it work on my Mac? I get the impression reading the
> technical specs that it might only work with vista and directX.
> Thanks, Matt
> Matthew Dougherty
> 713-433-3849
> National Center for Macromolecular Imaging
> Baylor College of Medicine/Houston Texas USA
> =========================================================================
> =========================================================================
> -----Original Message-----
> From: chimera-users-bounces at cgl.ucsf.edu on behalf of Tom Ferrin
> Sent: Wed 8/5/2009 2:22 PM
> To: Miles Pufall
> Cc: chimera-users at cgl.ucsf.edu
> Subject: Re: [Chimera-users] Zalman 3D
> Miles,
> The other obvious thing is that you need a newer version of Chimera than
> the 1.3 production release.  Just grab any of the daily builds from
> www.cgl.ucsf.edu/chimera/download.html.  If you still have problems
> after trying Conrad's suggestion come on down to GH-N456 and check the
> graphics settings we are using with our Zalman 3D display.
> --tom
> Conrad Huang wrote:
> > Do you have multisampling turned on?  Multisampling on different
> > graphics cards work differently.  Some cards use values from adjacent
> > rows for computing pixel values, and this really doesn't work when using
> >   row-interleaved stereo mode.
> >
> > To check if multisampling is on, use the Tools->Viewing Control->Effects
> > menu item to bring up the Viewing panel; the multisampling option should
> > be the bottom-most one on the right.
> >
> > Conrad
> >
> > Miles Pufall wrote:
> >> Hi Guys -
> >>
> >> I got a Zalman 3D - it's pretty cool with Coot and Pymol.
> >>  Your site says the row-interleaved stereo view under
> >> camera will work with this monitor, but I wasn't having
> >> much success.  Do you have some more detailed instructions
> >> for this particular monitor?
> >>
> >> I can drop by and visit with it, or you can come see me if
> >> you's like.  Thanks!
> >> Miles in Yamamoto Lab
> >> S574 Genentech Hall
> >> _______________________________________________
> >> Chimera-users mailing list
> >> Chimera-users at cgl.ucsf.edu
> >> http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users
> >
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