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Stop ART tracking in DTrack
Set
"ignoreGravity": false
to turn on the vertical gravity referenceSet
"combinerType": "Default"
to turn off relative orientation tracking with the reference IMUPush to driver
With these settings the headset will be tracked by the HMD IMU only. When wearing the headset, if the IMU alignment settings are correct, orientation tracking should feel natural. Please note that without optical system there is no position tracking. If orientation tracking is not working well, the alignment between IMU and the HMD optics (display, lenses) is not good.
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Make sure ART tracking is running
If it doesn’t exist yet, in
imuSources
createCode Block { "id": "no_imu", "type": "None” }
Set
"imuSource": "myno_imu"
intrackedObjects
Push to driver
Within the range of the optical system, the HMD should now be orientation and position tracked. The tracking will feel a lot less smooth when only using the optical system. However, this mode is a good way to assess the quality of the rigid body adjustment. If orientation tracking completely off, it is better to readjust the rigid body.
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