Using Varjo Base

Varjo Base is the software used to control your headset. You can observe what the headset viewer is seeing, quickly access settings and presentation tools, and analyze your project with real-time data.

Overview of Varjo Base

The main window in Varjo Base is divided into different sections as shown in the image.


Hosting a session

The viewer’s experience is displayed prominently in the Headset view.

Below the headset view are tools to record your observations and guide the viewer when needed.

Screenshot Captures a screenshot of the headset view. The image file is saved in the Pictures\Varjo folder on your Windows computer.
Record Records video of the headset view. The video file is saved in the Videos\Varjo folder on your Windows computer.
Gaze dot Visualizes the eye tracking feature to see where the viewer is looking. This feature is only accessible if eye tracking is calibrated.
Pointer Turns your mouse cursor into a VR pointer that is visible inside the headset.


Using presentation options

The Presentation tab in the Settings panel contains features to ensure that no headset actions are triggered accidentally by the viewer.


Disable headset buttons Disables the headset buttons, so that the viewer can focus on the immersive experience while the presenter controls headset features from Varjo Base.
Disable mouse in headset Disables the mouse in the headset, so the mouse works on your computer only and cannot be used to control System settings in the headset.
Disable notifications in headset Disables notifications in the headset to keep the immersive experience free of distractions.

Note that error messages are still displayed in the headset.

Optimize performance Improves performance by shutting down those Varjo processes that are not needed run the current application.



Positional tracking and device statuses

Note: This section applies to the SteamVR™ tracking system. Review the instructions for third-party tracking methods if you are using another tracking system.

Varjo headsets use the SteamVR™ tracking system by default. Tracking lets your VR application know the exact position of your headset and controllers. The tracking system allows you to move around freely in your room while using the headset, and the headset image updates seamlessly as you move.

The status of your devices is displayed in the status area in Varjo Base.


Device is connected and tracking.
Device is connected but tracking is not working. Tracking may be temporarily lost if the device is not in direct line of sight with the base stations.
Device is not connected. Power on your devices to see their status.
Device battery is low. You will need to charge it soon.
Device is charging.

The number of devices that can be displayed individually in the status area is limited. If several devices are connected, they will be grouped together in the status area with the number of devices displayed. Click in the status area to see a detailed view of all devices.



Override origin and direction

You can quickly override the origin point, direction, and floor level of your room setup in Varjo Base. This can help you temporarily fix tracking-related problems, such as your application starting in the wrong direction or virtual content drifting out of place.

The override setting applies to your headset by default. Other trackables, such as controllers, are affected if your application supports the feature.

Please note that this feature is intended to be a temporary fix only. We recommend you carefully check your tracking environment and perform a new room setup in SteamVR to correct problems related to tracking. If you are using a third-party tracking solution, refer to your tracking technology provider for instructions. 


Place your headset in the location where you want to start the scene and point it in the desired direction. Adjust your room setup accordingly by selecting Override origin and direction under the System tab. The Override button text will change to Active. You can set the headset elevation in centimeters under Headset elevation from floor.

While the override setting is active, your application will use the adjusted room setup over the original one.

Return to your original room setup by clicking the Active button.



Analytics window

The Analytics window in Varjo Base includes additional tools for developers in particular. You can open the Analytics window from the Tools menu.

Read more about the Analytics window on our Developer portal.



Software and firmware updates

You can download software and headset firmware updates in Varjo Base. We recommended you always use the latest software and firmware.

Go to the Support tab in Varjo Base to check for available updates. Enable Automatically check for updates to allow Varjo Base to automatically check and display a notification if updates are available. All updates will ask for your confirmation before they are installed. Select Varjo Base software update to check for updates manually.

If your computer does not have internet access, you can use another computer to download the updates and copy them over to your computer. Varjo Base can be found our Downloads page and firmware updates on our Developer portal. Select Manual update and locate the installation file to update.

Important:  Firmware updates for Varjo headsets can only be installed using Varjo Base. Never attempt to update the firmware using the SteamVR application. If SteamVR suggests you update the firmware for your headset, please ignore the notification.