From: Thomas Bishop (
Date: Thu Sep 29 2011 - 08:15:59 CDT

Axel and any other VMD'ers

The lines I read about static images may only apply to the "cachemode
option". see excerpt from manual below.

Is there a short "howto" for VMD on tiled display walls someplace?
or do I just need to go do-it myself?


• Cachemode – The Cachemode toggle controls whether or not VMD uses a
display list caching
mechanism to accelerate rendering of static geometry. This feature can
be extremely beneficial
for achieving good interactive display performance on tiled display
walls, and for remote
display over a network. Caching cannot be performed while animating
trajectories, so the
performance benefit is only possible interactive rotation and zooming of
static molecular

On 09/28/2011 07:46 PM, Axel Kohlmeyer wrote:
> dear tom,
> On Wed, Sep 28, 2011 at 7:43 PM, Thomas Bishop<> wrote:
>> Dear VMD,
>> I have access to a display wall. I haven't tried to use it yet but a quick
>> skim of manual says I can't do
>> trajectory animations but only rotations etc...(if I read it correclty)
> why not?
>> What if instead of a single trajectory or molecular image displayed
>> across the entire wall , I want to display results from an ensemble of
>> calculations... say
>> I have a tiled display wall of 16 monitors and I have 16 simulations
>> each w/ nearly identical molecs and trajectory data but DIFF simulations.
>> Is there a simple way to control separate instances of VMD (one for each
>> monitor ) w/ a single GUI s.t the rotations, animations, selections in
>> one are used for all instances?
> that really depends on how you address the individual screens.
> with X11 one do some pretty nifty manipulations via "xprop" or
> the "wm" command that comes with Tk. i'm using a hack like
> that to have the VMD OpenGL window reflect the name to the
> current "top" molecule.
> similar things can be done to remove "decorations" and go fullscreen
> or change position and geometry. in part this is also available as
> part of the native "menu" and "display" commands in VMD.
> however, there is something to be said about having one
> huge VMD display. we recently managed to hook up
> three projectors to project on a cylindrical screen for
> doing interactive MD with VMD. however that requires
> special software and a hacked VMD version that can
> account for the overlap of the projectors and the distortion
> due to the bent screen.
> now if only stereo would have worked, too.
> (VMD the GPUs were set up for it, but one of
> the projectors had a firmware issue).
> cheers,
> axel.
>> Think campbell's soup& andy warhol meet VMD.
>> THanks
>> Tom
>> --
>> *******************************
>> Thomas C. Bishop
>> Tel: 318-257-5209
>> Fax: 318-257-3823
>> ********************************

    Thomas C. Bishop
     Tel: 318-257-5209
     Fax: 318-257-3823