Release notes for Varjo Base
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      Release notes – Varjo Base 4.10

      Varjo Base, release version 4.10

      April 10, 2025
      Supported headset models: XR-4 Series, XR-3, VR-3, and Varjo Aero.

      This release introduces the new Varjo Base Pro license model and Varjo hand tracking (Beta) feature. Additionally, Varjo Base software has been redesigned to have a new look and feel, improving the user experience.

      Varjo Base Pro

      Varjo Base Pro is a license for XR-4 Series headsets. The license gives you access to an expanded feature set in Varjo Base. This new license is designed to enhance the performance, utility, and deployability of Varjo headsets. Read more about Varjo Base Pro license for XR-4 Series.

      All professional software features included in this release will be available for all headsets that were purchased before March 25, 2025, without a license.

      Note that if you have previously used your XR-4 Series headset with a personal account, a commercial account is needed to use the XR-4 Series headsets after Varjo Base 4.10 release.

      Varjo hand tracking (Beta)

      This release introduces Varjo hand tracking (Beta): a new integrated hand tracking capability for all XR-4 Series headsets that helps you operate in a virtual or mixed reality environment and interact with it without separate controllers.

       Applications that are built with OpenXR hand tracking support are compatible with Varjo hand tracking (Beta). For more information about how to take hand tracking into use for your application, see Hand Tracking | Varjo for developers.

      In this Beta release, known issues include:

      • Gestures like pinch and grab may sometimes work unreliably.
      • You might experience a noticeable lag when using gestures.

      Please contact your Account Executive or Solutions Engineer at Varjo to share your feedback. Your input is invaluable in helping us improve and refine Varjo hand tracking.

      New Varjo Base

      From this release onwards, we will be introducing a new look and feel, and we are taking the first steps by renewing the main view of the Varjo Base desktop application. The user interface has been restructured to better accommodate a variety of use cases. This change brings a cleaner, more scalable interface which makes it easier to navigate, present, and configure your Varjo system. Read more about the new structure of Varjo Base.     

      Mixed reality

      Two major improvements to mixed reality were implemented in this release. The width of the foveated focus area was increased by approximately 25 % resulting in fewer perceived foveation artifacts when moving eyes.

      Additionally, depth occlusion hand silhouettes were improved in neutral colored lighting conditions (~4000-5300 K). The hand silhouettes are now more precise and the threshold around the hands has been significantly reduced.

      Other release contents  

      Note: All listed items concern the XR-4 Series only unless otherwise mentioned.

      Varjo inside-out tracking:

      • Improved Varjo inside-out tracking to offer more robust continuity in tracking, transitioning from 6 DoF tracking mode to 3 DoF when there aren't enough features, without interrupting the user experience.
      • Improved headset idle handling resulting in instant readiness for use after the headset is left idle.
      • Improved Varjo inside-out tracking, resulting in a reduction of tracking errors in office environments.

      Other bug fixes:

      • Fixed an issue where clearing Varjo Markers from Varjo Base settings was not always functioning correctly.      
      • Fixed an issue that sometimes caused Varjo controller tracking to be lost when disabling "Automatic positional tracking camera calibration" in Varjo Base.  

      Developer tools and APIs:

      • OpenXR:
        • Added support for XR_EXT_user_presence, which exposes the headset wearer's presence signal to OpenXR applications.
        • Added preview support for eye tracking analytic signals through an experimental OpenXR extension.
        •  Added support for XR_EXT_hand_interaction which exposes hand gestures through the OpenXR input system. Gesture recognition is exposed for both Ultraleap hand tracking and Varjo hand tracking (Beta).

          For more information, see OpenXR | Varjo for developers.

      Known issues:

      • The view in the headset sometimes stutters if the Analytics window is opened at the same time as hand tracking or depth estimation is used.
      • GeForce 50 series GPUs are not officially supported until a compatible NVIDIA driver is released. (XR-3, VR-3, and Varjo Aero)
      • NVIDIA 572.60, 572.70, and 572.83 drivers are sometimes causing a "Something went wrong" error. (XR-3 and VR-3)

      The latest NVIDIA drivers verified to be compatible with this release are:

      XR-4 Series
          - NVIDIA Game Ready Driver 572.83
          - NVIDIA Studio Driver 572.83
          - NVIDIA RTX Driver Release 570 R570 U3 (572.83)

      XR-3
                - NVIDIA Game Ready Driver 572.47
          Note that the latest NVIDIA Drivers are not currently supported.