Setup

• Start the VRG Tool service application
• Make sure that the VRG Runtime is installed and updated
• Make sure that the SteamVR Driver is disabled
• Make sure that you have the correct Tracking option selected
  • use ‘IMU’ if you are using the XTAL internal IMU sensor without any additional room-scale tracking
  • use ‘SteamVR’ if you are using the Lighthouse/SteamVR tracking system

• Optional (if you are using room-scale Lighthouse/SteamVR tracking system)
  • Position the Lighthouse base stations around your tracking space, power them up, and make sure they are synchronized
  • Start SteamVR

• Go to Settings – Headset Resolution
  • Set the resolution to a value corresponding to the used GPU/CPU and your desired FPS
    • If you are using the foveated rendering, we recommend setting the main resolution to 30% and foveated resolution to 100% (with 45% vertical size and 30% horizontal size)
    • if you are using standard stereo rendering
      • for the XTAL 3 and XTAL 8K headsets we recommend using the default 60%
      • for the XTAL 5K headset we recommend using higher value (80-100%)
    • be aware that currently changing the resolution can slow down the rendering process in Prepar3D, so we recommend disabling and reenabling VR after each resolution change

• Start Prepar3D
• Set your desired mission parameters and press OK

• Select ‘Virtual Reality’ – ‘Enable Virtual Reality’ – ‘VRG’

• If you want to use the foveated rendering functionality (recommended)
  • Select ‘Virtual Reality’ – ‘VR Settings…’
    • Change the ‘HMDDisplayMode’ option to ‘Stereo’
  • Go to Eye Tracking section
    • Change the ‘EnableFoveatedRendering’ option to ‘Yes’

• The Eye Tracking features and MixedReality features can be accessed through the VRG Tool application on Settings – Headset – Eyes and Settings – Mixed reality pages, these features are currently not connected to any other similar functionality in Prepar3D menu

This page was last modified on March 22nd, 2025 at 18:15

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