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OpenXR Toolkit

This software provides a collection of useful features to customize and improve existing OpenXR applications, including render upscaling and sharpening, hand tracking to controller input simulation (on supported devices only) and other game-enhancing tweaks.

For more details on how it works, see the How does it work?.

DISCLAIMER: This software is distributed as-is, without any warranties or conditions of any kind. Use at your own risks.



Current version: 1.1.2

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This software may be used with any brand of VR headset as long as the target application uses any GPU compatible with DirectX 11 and above, and is developed using OpenXR.

The following OpenXR ToolKit features have additional restrictions:

  • Fixed Foveated Rendering and Foveated Rendering are only supported with the following GPUs:
    • NVIDIA GeForce GTX 1600 series and RTX series, both DX11 and DX12.
    • AMD RX 6000 series, with DX12 applications only.
  • Foveated Rendering with eye tracking is only supported with the following headsets:
    • Varjo-brand devices.
    • HP G2 Omnicept.
    • Pimax-brand devices with Droolon eye tracking module.


  • This software was only extensively tested with Microsoft Flight Simulator 2020.
    • It is also expected this software should work with most Steam games if they are using OpenXR (instead of Steam’s OpenVR).
    • It can be used with certain games through OpenComposite-ACC.
  • If using with an HTC Vive Pro 2 or Cosmos, please select SteamVR as your OpenXR runtime.
  • Fixed Foveated Rendering in Microsoft Flight Simulator only works when TAA is enabled with a render scale of at least 51%.
  • Fixed Foveated Rendering in Microsoft Flight Simulator is incorrectly applied in the main menu, resulting in blurry menu windows.
  • The menu does not display correctly on Pimax headsets.
  • The OpenXR Toolkit is incompatble with ReShade.
  • See the open bugs.

For future plans, see the Roadmap.

⚠️ Warning: if you are using the previous NIS Scaler or Hand-To-Controller layer before, please uninstall them now.


Video tutorial by PIE IN THE SKY TOURS:

1. Run the OpenXR-Toolkit.msi program.

Installer file

📝 Note: You may be warned that Windows protected your PC because this software is not trusted. The application is built on a GitHub server hosted in the Microsoft cloud, which greatly limits the risk of contamination from viruses and malware. Additionally, we have digitally signed the software through a reputable organization (Comodo) which helps with guaranteeing that is has not been altered by any third party.

Proceed through the "Windows protected your PC" warning...

Select More info then Run anyway.

Warning not signed Warning not signed

2. Follow the instructions to complete the installation procedure.

Setup wizard

3. Launch the OpenXR Toolkit Companion app to confirm that the software is active.

You can use the shorcut found on the desktop or in the Start menu... Companion app shortcut

The OpenXR Toolkit Companion app may be used sporadically to enable or disable advanced features or perform recovery (see further below). The application displays a green or red status indicating whether the software OpenXR component is active:

Companion app

💡 Tip: You don’t need to keep the companion app running in order to use the software: the actual settings for the toolkit are available from within your OpenXR application and display directly in the headset! (see below).

Basic usage

Once installed, please run the desired OpenXR application and use CTRL+F2 to open the configuration menu:

On-screen menu

In order to navigate the menu, select options and change values:

  • Use CTRL+F2 to move to the next option (next line) in the menu.
  • Use CTRL+F1 to move selection to the left / decrease the option value.
  • Use CTRL+F3 to move selection to the right / increase the option value.
  • Hold both SHIFT and CTRL together to change values fasters.

💡 Tip: Use the OpenXR Toolkit Companion app to change the default shortcut keys.

💡 Tip: When starting an application for the first time, use the configuration menu to adjust the Menu eye offset until the text appears correctly (eg: no “double vision”).

📝 Note: The first few times you’re using the OpenXR Toolkit with a new application, a convenient reminder message will appear in the headset and confirms whether the software is operating properly.

On-screen indicator... On-screen indicator

Available options

See Features for more details.

Performance tab:

  • Overlay: Enables the FPS display or advanced timings display in the top-right corner of the view. Please note that the overlay may reduce performance. A fourth option - “Developer” - is available in experimental mode and may be used for troubleshooting with the developers.
  • Upscaling: Enables the use of an upscaler such as NIS or FSR to perform rendering at a lower resolution, and upscale and/or sharpen the image. Requires to restart the VR session.
    • Anamorphic: When Disabled, the Size scales both the width and the height propotionally. When Enabled, both sizes can be adjusted independently.
    • Size: The upscaling factor (ie: the percentage of magnification of the rendering resolution). The resolution displayed next to the percentage is the effective resolution that the application sees. Requires to restart the VR session.
    • Width/Height: This displays the actual in-game render width and height, that is the actual number of pixels the game is rendering per eye.
    • Sharpness: The sharpness factor. Has a different scale/effect between NIS and FSR.
    • Mip-map bias (Expert setting): This settings changes how the game is rendering some of the textures in order to reveal a little bit more details when used with FSR/NIS upscalers.
  • (Fixed) Foveated rendering (on supported GPUs only): These settings adjust the VRS parameters in order to balance out peripheral visual details with rendering performance.
    • Eye tracking (on supported headsets only): Enable the use of eye tracking to control the position of the center of the foveated region.
    • Eye projection distance (only with Pimax headsets): Calibrate the sensitivy of eye gaze movements.

    Preset mode

    • Mode: Whether to prefer performance over quality.
    • Pattern: The size of the foveated regions.

    Custom mode

    • Inner resolution (Expert setting): The resolution inside the inner ring of foveation. Should be left at full resolution (1x).
    • Inner ring size: The size of the inner ring of foveation, in percent of the height of the image.
    • Middle resolution: The resolution inside the middle ring of foveation.
    • Outer ring size: The size of the outer ring of foveation, in percent of the height of the image.
    • Outer resolution: The resolution inside the outer ring of foveation.
    • Horizontal scale (Expert setting): The rings for foveation can be configured as ellipses. This setting controls the scale of the horizontal radius (or semi-major axis) based on the vertical radius (or semi-minor axis). A value of 100% means that the rings are circles. A value larger than 100% will result in flattened, oval-shaped rings.
    • Horizontal offset (Expert setting): Add a horizontal offset to the center of the foveation rings. The offset is expressed relative to the left eye, and its opposite value will be applied to the right eye.
    • Vertical offset (Expert setting): Add a vertical offset to the center of the foveation rings.
    • Left/Right Bias (Expert setting): Lower the resolution of all the regions at once, either for the left or the right eye only at a time.

Appearance tab:

  • Post-processing: Allows adjusting the image displaying in the headset. When Enabled, the following additional controls are available.

    Sun Glasses Presets

    These are finely tuned quick-access presets, applying on top of the individual post-processing settings, effectively augmenting but not replacing them:

    • Light and Dark: Two levels of sun glasses, adjusted to reduce exposure and low light details while preserving perceived contrast.
    • TruNite: Wear these glasses exclusively when flying at night and feel the lights popping up in a sea of darkness surrounding you.

    Individual Controls

    These are adjusting individual enhancements settings and they allow fine tuning the image displaying in the headset:

    • Contrast: Adjusts the difference between bright and dark pixels (Neutral: 50).
    • Brightness: Adjusts those pixels that are not already extremely bright (preserves the highlights) and adjusts midtones, aka gamma (Neutral: 50).
    • Exposure: Adjusts the brightness or darkness of the entire image (Neutral: 50).
    • Saturation: Adjusts the colorfullness of the entire image. It affects all colors and pixels in the image equally, regardless of how saturated they already are (Neutral: 50).
    • Vibrance: Adjusts the intensity of the more muted colors while leaving the saturated colors untouched (Neutral: 0).
    • Highlights: Adjusts the highlight details in reducing the intensity of the brightest pixels (Neutral: 100).
    • Shadows: Adjusts the details that appear in shadows in brightening the darkest pixels (Neutral: 0).
  • World scale: The Inter-Camera Distance override, which can be used to alter the world scale.

Inputs tab:

  • Shaking reduction, formerly Prediction dampening (only when supported by the system): The prediction override, which can be use to dampen the prediction for head, controllers, and hand movements.
  • Controller emulation (only when hand tracking is supported by the system): Enable the use of hand tracking in place of the VR controller. Requires a compatible device, such a Leap Motion controller or an Oculus Quest 2 headset. Either or both hands can be enabled at a time. Requires to restart the VR session when toggling on or off.
    • Hands skeleton: Whether the hands are displayed and what color tone to use.
    • Controller timeout: The amount of time after losing track of the hands before simulator shutdown of the simulated VR controller.

System tab:

  • Override resolution: Enable overriding the OpenXR target resolution (same as what the “custom render scale” in OpenXR Tools for WMR does).
    • Display resolution (per-eye): The resolution to use for each eye.
  • Motion reprojection (only with Windows Mixed Reality): Enable overriding the Motion Reprojection mode. Default means to use the system settings (from the OpenXR Tools for Windows Mixed Reality).
    • Lock motion reprojection (only with Windows Mixed Reality, when Motion Reprojection if forced to On): Disable automatic motion reprojection adjustment, and lock the frame rate to the desired fraction of the refresh rate.
  • Color Gains: Adjusts the Red, Green and Blue channels gains individually (Neutral: 50).
  • Field of view: Adjust the pixel density per degree. A smaller field of view is covering a smaller region of the view but with the same amount of pixels, effectively increasing the perceived resolution.
    • Adjustement (in Simple mode): Override all 4 angles (up/down/left/right) equally.
    • Up (in Advanced mode): Override the “up” angle for both eyes.
    • Down (in Advanced mode): Override the “down” angle for both eyes.
    • Left/Left (in Advanced mode): Override the “left” angle for the left eye.
    • Left/Right (in Advanced mode): Override the “right” angle for the left eye.
    • Right/Left (in Advanced mode): Override the “left” angle for the right eye.
    • Right/Right (in Advanced mode): Override the “right” angle for the right eye.
  • Pimax WFOV Hack (Flight Simulator 2020 only, with Pimax headsets): Enable the Wide FOV hack to reduce game “over-culling”.

Menu tab:

  • Show expert settings: Show all settings. This can be pretty overwhelming for certain features.
  • Font size: The size of the text for the menu.
  • Menu timeout: The duration after which the menu automatically disappears when there is no input.
  • Menu eye offset: Adjust rendering of the menu until the text appears clear.


See Troubleshooting for more details.

If changing some settings render the application unusable, use Ctrl+F1+F2+F3 to hard reset all settings.

Note: if the key combinations were changed from the OpenXR Toolkit Companion app, please use the newly assigned keys.

If an application can no longer start, use the OpenXR Toolkit Companion app (found on the desktop or Start menu) and select the Safe mode before starting the application, then use Ctrl+F1+F2+F3 (regardless of custom key combinations) to hard reset all settings.


The software can be removed from Windows’ Add or remove programs menu.

Add or remove programs

In the list of applications, select OpenXR-Toolkit, then click Uninstall.