Somnium VR1 - eye tracking

• "Measure IPD" and "Calibrate Eye Tracking"   tutorial video
  calibrates eye tracking in basic form when button is pressed.
  
        Eye tracking check OK - Windows Camera settings
  It just doesn't do Advanced Calibration..
• 120Hz, compatible with prescription lens inserts
• Eye tracking system will calculate and report your IPD
  will be open source;  currently also supports open vs shut
• Eye tracking and virtual desktop work in SteamVR and OpenXR,
  but OpenXR needs application rendering into VR1
• Eye tracking not working - check Windows Camera Setting
• verify your calibration precision by turning on heatmap,
  which overlays eye tracking on scenes
• "Calibrate Head pose" for pupil centering in eye boxes
• Disable SteamVR IPD value pop-up
  displays when VR1 lenses move laterally, either by slider or nose