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• Create a rigid body for the HMD in DTrack. The default orientation is OK. Save the rigid body to a file (e.g. standard b15.txt). Use the Calibration → Body menu in DTrack as shown in the screenshots below.

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• In case you have LPVR already installed on your system already temporarily disable it:

  • If you have a SteamVR headset (Vive Pro, Valve Index):

    • First go to the SteamVR Settings menu.

      

    • Then go to Startup / Shutdown, and to Manage Add-ons.
      

      

    • Here change lpvr_cad to Off. A Restart SteamVR button should appear. Use it to restart SteamVR with the LPVR-CAD driver disabled.

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  • If your headset is a Varjo Headset and you have already installed the LPVR driver: go to the System tab in Varjo base, select SteamVR tracking from the dropdown menu near the top
    

    

• Verify that SteamVR tracking is smooth. Otherwise reduce the camera flash intensity and reduce the frequency of DTrack, also try positioning the Lighthouse base stations at the right angles to the ART cameras to minimize interference from the camera flashes.

• Run the calibration tool from the command line as below:

  Code Block
  $ ./lh_art_calib.exe --port 5000 --trackedDevice 1 --bodyId 1 --bodyFile "standard b15.txt"

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