VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Mon May 09 2005 - 10:07:04 CDT

Oliver,
  VMD doesn't do head tracking. If you want head tracking, you'll
need to run VMD in CAVE or FreeVR mode. Those systems provide head
tracking features, but VMD doesn't do head tracking by itself.

  John Stone
  vmd_at_ks.uiuc.edu

On Mon, May 09, 2005 at 04:57:43PM +0200, Oliver Wenisch wrote:
> Hello all,
>
> I am having problems to get vmd (1.8.3 running on linux) to track a users
> head and adjust its view accordingly.
> I'm using VRPN to collect data from a Polhemus Fastrak with a tracked
> stylus (1 button) and a head tracking sensor.
>
> My .vmdsensors is:
>
> device stylus vrpntracker://localhost/Tracker0
> device stylusbutton vrpnbuttons://localhost/Stylus0
> device head vrpntracker://localhost/Tracker0:1
>
> and I added to .vmdrc:
>
> tool create grab
> tool adddevice stylus
> tool adddevice stylusbutton
>
> My vrpn.cfg is:
> vrpn_Tracker_Fastrak Tracker0 /dev/ttyS0 38400 /
> FTStylus Stylus0 0
>
> Whereas tracking of the stylus and manipulating the display with it (grab
> tool) works fine, the view will not get adjusted when moving the head
> sensor.
> However, it is possible to attach the grab-tool to the head sensor (Tools
> menu), so at least correct tracking information seems to arrive.
>
> What did I do wrong/do I have to do to get the view adjusted by the head
> tracker?
>
> Any clue welcome!
>
> Thanks,
> Oliver
>
> --
> Oliver Wenisch, Leibniz-Rechenzentrum (LRZ)
> High-Performance Computing Group (HPC)
> Barer Strasse 21, 80333 Muenchen, Germany
> phone: +49 89 289-28875, email: wenisch_at_lrz.de 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349
  WWW: http://www.ks.uiuc.edu/~johns/      Fax: 217-244-6078