Setup

• Start the VR Tool service application
• Go to Settings tab
  • Make sure that the VRG runtime is installed and updated
  • Make sure that the SteamVR driver is disabled
  • Make sure that the display mode is set to Direct Mode

• 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

• Optional: Update the DCS VRG driver to the latest available version
  • Download the DCS VRG driver (dcs_hmd64_x.x.x.zip) [available in the Simulators folder]
  • Go to your DCS installation folder
    • if installed through the DCS web installer this will be by default in ‘c:\Program Files\Eagle Dynamics\DCS World\bin\’
    • if installed through the Steam platform this will be by default in ‘c:\Program Files (x86)\Steam\steamapps\ common\DCS World\bin\’
  • Unzip the downloaded dcs_hmd64_x.x.x.zip and copy its contents to the DCS installation folder (overwrite the original files)
• Optional: Create a startup shortcut forcing the native XTAL support
  • This is currently not required, as DCS will switch to native XTAL support automatically if the VRG runtime is installed and XTAL headset is connected (same as when using the force_VRG_4 parameter)
  • Create shortcut from DCS.exe (located in the DCS installation folder)
  • Edit the shortcut and add following parameters at the end of the path:
    • either ‘--force_enable_VR --force_VRG_4’ for static foveated rendering
    • or ‘--force_enable_VR --force_VRG_2’ for standard stereo rendering

• Optional: You can also use DCS with XTAL through OpenXR
  • This is an alternative to using the native XTAL support, but currently not all functionality is available through OpenXR
  • Install and enable the VRG OpenXR runtime (see OpenXR page for details)
  • Create shortcut from DCS.exe (located in the DCS installation folder)
  • Edit the shortcut and add following parameters at the end of the path:
    • ‘--force_enable_VR --force_OpenXR’
• Start DCS from your desktop shortcut, or use one of the custom shortcuts mentioned above

• Find the XTAL icon in the Windows notification area and right click on it

• Make sure that you have the correct Tracking option selected
  • use ‘Internal’ if you are using the XTAL internal IMU sensor without any additional room-scale tracking
  • use ‘Lighthouse’ if you are using the Lighthouse/SteamVR tracking system

• Open the Settings…
  • Set the resolution to a value corresponding to the used GPU/CPU and your desired FPS
    • If you are using the static foveated rendering (default option), 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%)
    • make sure to restart DCS after changing these settings
    • you should test the resolution/FPS changes when the plane cockpit is loaded, as the main DCS menu will show overall higher FPS than what can be achieved in the full scenario

This page was last modified on June 19th, 2023 at 10:39

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