Introduction
Problem: Adjusting rigid bodies in ART DTrack to fit with HMD eye coordinate system is time-consuming and the result might not be sufficiently accurate.
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In case you have LPVR installed on your system already temporarily disable it:
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first go to the Settings menu
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Then to “Startup/Shutdown”, and then to “Manage Add-ons”
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Here change “lpvr_cad” to “Off”, then a “Restart SteamVR” button should appear. Use it to restart SteamVR with the LPVR-CAD driver disabled.
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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 right angles to the ART cameras to minimize interference from the camera flashes.
Run the calibration tool from the command line as below:
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--port | The Port where ART data is available |
--trackedDevice | The SteamVR device number. You can find it in the SteamVR system report (see screenshot), the headset will always be number one which is also the default if you omit this flag.   |
--bodyID | The bodyId as in the DTrack GUI (defaults to one) |
--bodyFile | The input ART body file. For each of the different calibration algorithms an output is generated. E.g. for the input file ‘standard b15.txt’ in the example, the following outputs are generated:
Please use the HOURAD output file as your reference in DTrack. |
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