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Solution: Most HMDs are pre-calibrated for SteamVR Lighthouse tracking. We introduce a tool that allows the calibration of a DTrack rigid body against Lighthouse tracking data. In this way a body adjustment with equivalent quality as the built-in Lighthouse calibration can be achieved.
NOTE: This calibration method for technical reasons only works with Varjo and Valve Index HMDs.
Calibration Procedure
Download the calibration tool from this link.
Arrange a tracking setup where the Lighthouse Base Stations and ART cameras can both see the HMD. ART tracking and Lighthouses need to be turned on simultaneously. Lighthouse tracking can fail or become unreliable if the ART cameras are too close. An example setup is shown schematically in the image below:
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The procedure described above also works for the hand controllers. Below screenshots show a marker arrangement on a hand controller together with the calibrated ART body from roughly the same perspective.
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