From: Yoav Atsmon-Raz (
Date: Wed Apr 06 2016 - 14:49:10 CDT

Hi John,

Strangely part of my message was cut out from the original message so i'll post it now instead:
Our setup is as follows:

GPUs: 2 X Nvidia Gefroce 980 Ti using the Nvidia 352.63 driver
OS: Ubuntu 14.04
The CPU/RAM is a X99 Workstation with a Xeon octocore and 32 GB of ram.

Things we tried so far:
1) Swapping out HDMI cables;
2) removing SLI bridge
3) switching from Unity to XFCE4
4) reinstalling nvidia drivers
5) testing the 3d TV on its own 3d self test that worked great.
6) Trying to visualize the same molecule with Chimera (same problem).

We're really at a loss for ideas here and are willing to try anything, so if anyone has a suggestion based on their own experience with passive 3d tvs, i'll be more then happy to hear about it.

Thanks in advance, Yoav

From: John Stone []
Sent: Wednesday, April 06, 2016 1:31 PM
To: Yoav Atsmon-Raz
Subject: Re: vmd-l: setting up a 4k HD TV for passive stereoscopic 3d

  We will need more information to be able to help you out.
In general, you have two major approaches for using passive
stereo on a TV. One way is to depend on the GPU and its graphics
driver to supply quad-buffered stereo, and drive the TV using
an HDMI stereo 3-D signal and video mode. In that mode, you would
tell VMD to use quad-buffered stereo in the Display | Stereo menu,
and you might need to set the TV mode to enable 3-D display.

The other way of getting stereo is to run the TV in a normal
(non-stereo) display mode, and leave the GPU driver set with
quad-buffered stereo off/disabled. In that mode, VMD would
generate the stereo signal itself using row-interleaved
OpenGL rasterization in software, and you will need to ensure
the correct left/right eye mapping by turning on/off the stereo
eye swap feature in the Display | Stereo menu if you move
the OpenGL window around on the screen.

If you can tell us more specifically exactly what steps you've
taken we can give further guidance.

  John Stone

On Wed, Apr 06, 2016 at 06:45:49PM +0000, Yoav Atsmon-Raz wrote:
> Greetings everyone, recently our research group has purchased an LG UF8500 4k HDTV that has passive spectroscopic 3d integrated into it and we are interested in using it to display proteins with VMD. We have used the stereo>rows option and while we do get a 3d image the protein appears as horizontal stacks that push out of the screen instead of a spheroid shape which we should be getting. We also tried every of the other options in the stereo menu, but neither one of them is giving us the right shape in terms of depth

NIH Center for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801           Phone: 217-244-3349