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Info

LPVR is optimized to work with ART optical tracking. Should you use LPVR with an Optitrack optical tracking system, please refer to this article for the correct marker arrangement and body adjustment in Motive.

ART DTrack Setup

  • Make sure the tracking cameras operate at either the same, twice or half the refresh frequency of the HMD screen. In case of a VIVE Pro that is 90Hz. This is adjusted in the Synccard Settings in DTrack.

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Info

There are three ways to adjust the alignment of the optical marker target on the HMD:

  • Using a pre-made body file from LP-Research or ART. These usually work well, use another adjustment method only if you are not satisfied with the result or we don’t offer a body file for your specific marker target.

  • The automatic adjustment works well for any optical marker target. It requires setting up Lighthouse tracking parallel to ART tracking. The procedure might require some practice, please contact us if you need help.

  • Manual adjustment should be the last resort. Try this if the methods above don’t sufficiently work for you.

Pre-made Rigid Body Calibration Files

If you would like to not go through the manual body calibration process, we provide a number of premade body calibration files for download on this page. These files have been calibrated using our automatic calibration algorithm and are a very close approximation of an ideal configuration.

Automatic Adjustment of HMD Rigid Body

Follow this tutorial.

Manual Adjustment of HMD Rigid Body

Perform the following steps to adjust and calibrate the HMD rigid body and its attached IMU. These instructions are written specifically for ART’s DTrack software.

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Figure - Correctly aligned body origin, side view along X-axis

Figure - Correctly aligned body origin, top view along Y-axis

Using the VIVE Hand Controller

The rigid body of the controller should be axis aligned as shown in the figure below.

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