Tracker legacy documentation:

This information is for Vicon Tracker 3.9. For up-to-date help, see the latest Tracker documentation.

Vicon Tracker banner

Virtools, a commercial application, has support for VRPN and can be configured to connect with Vicon Tracker as follows.

A full VRDevice.cfg file is included below.

Head@TrackerPC is the way Virtools connects to the VRPN server within Tracker. The format is object_name@PC_Name. This configuration file will look for an object called "Head" on the Tracker server called "TrackerPC."
 vrpnTracker_0           Head@TrackerPC
 neutralPosition_0    0.0 0.0 0.0
 neutralQuaternion_0 0.0 0.0 0.0 1.0
 axisPermute_0 0 2 1
 axisSign_0 1 1 1
 trackerScale_0 1
 TrackerGroup_0 T0:0:6

This VRDevice.cfg also contains other directives that:

  • Map the Vicon coordinates properly to the Virtools coordinates:
    axisPermute_0 0 2 1
    axisSign_0 1 1 1
  • Add a tracker group with:
    TrackerGroup_0 T0:0:6

To complete the process, do the following:

  • Add the VRPN settings to a VRPack.cfg file, which is in the same folder as the .cmo. That way it can be tested with Virtools Dev.
  • For versions of Tracker before 1.2 in the composition, activate the Use Scale option and change the value of trackerScale_0 in your VRDevice.cfg file to 0.001 (converts Vicon mm to Virtools m).

For a full description of any of these configuration options, please refer to the Virtools documentation.

For sample files that use VRPN to connect Virtools to a tracked object within Vicon Tracker, please contact Vicon Support or download from the Vicon website.