From: John Stone (
Date: Tue Nov 16 2010 - 15:23:14 CST

  The easiest way to do this would be to write a tracker driver
for VRPN and/or FreeVR, as VMD can interface to these libraries already.
I know that prevoius revs of FreeVR could use VRPN trackers, though I haven't
tried doing this for head tracking specifically. Either of these approaches
would require far less effort that recreating what these libraries already do,
and then you wouldn't even have to modify VMD itself.

  John Stone

On Tue, Nov 16, 2010 at 11:25:04AM +0100, Tamás Borsos wrote:
> Hi,
> first of all I would like to thank You all for your work on this
> project, because we are using your software regularly for short three
> dimensional presentations to our students at Lorand Eotvos University,
> Hungary. I am working at the Faculty of Natural Sciences as a software
> engineer and we have a large stereoscopic projection system and we are
> just about to finish the development of our head tracking system,
> which is already able to measure the position and orientation of the
> viewers head. This way we will be able adapt the viewpoint of the
> three dimensional software to the viewpoint of the user.
> In order to completely interface our system with your software we need
> to modify it or write an additional module. Would you be so kind to
> help me find a sophisticated (or maybe easy) way to upload/adjust the
> cameraposition (world transformation) through an interface to your
> software?
> Thank you very much in advance.
> Regards,
> Thomas Borsos

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