- #Gaze eye tracking how to#
- #Gaze eye tracking windows#
In general, it is recommended to avoid showing an eye gaze cursor or if absolutely required to make it very subtle.
Check the 'Simulate Eye Position' checkbox. Clone the 'DefaultMixedRealityInputSimpulationProfile' to make changes to it. From there, navigate to 'Input Data Providers' -> 'Input Simulation Service'. Click on the 'Input' tab in your MRTK configuration profile. While this is great for initial testing, please note that it is not a good imitation for rapid eye movements.įor this, it is better to ensure frequent tests of your eye-based interactions on the HoloLens 2. The eye gaze signal is simulated by simply using the camera's location as eye gaze origin and the camera's forward vector as eye gaze direction. You can simulate eye tracking input in the Unity Editor to ensure that events are correctly triggered before deploying the app to your HoloLens 2. Simulating eye tracking in the Unity Editor For Platform(s) select 'Windows Universal'. Under Type select '.Input' -> 'WindowsMixedRealityEyeGazeDataProvider'. Double click on your new input profile, expand 'Input Data Providers', and select '+ Add Data Provider'. Simply click on 'Clone' at the bottom of that menu. To edit the default one ( 'DefaultMixedRealityInputSystemProfile' ), click the 'Clone' button next to it. Click on the 'Input' tab in your MRTK profile. You can simply select DefaultMixedRealityToolkitConfigurationProfile and then select the 'Copy & Customize' option. Setting up the MRTK profiles required for eye trackingĪfter setting up your MRTK scene, you will be asked to choose a profile for MRTK. Set up the MixedRealityToolkit by simply clicking 'Mixed Reality Toolkit -> Configure…' in the menu bar. Setting up eye tracking step-by-step Setting up the scene This means that if you had already built your Unity project and set up the appxmanifest before and now target the same folder again, you will not need to reapply your changes. 
You only have to do this if you build into a new build folder.
#Gaze eye tracking windows#
If you don't see a 'GazeInput' capability, check that your system meets the prerequisites for using MRTK (in particular the Windows SDK version).
Make sure to tick the 'GazeInput' checkbox under Capabilities. Open your compiled Visual Studio project and then open the 'Package.appxmanifest' in your solution. 
Prior to Unity 2019, when using Unity's build window, the capability will need to be manually added after the Unity build, as follows: Prior to Unity 2019, this tooling is NOT active when using Unity's built-in Build Window (i.e. This tooling will find the AppX manifest after the Unity build is completed and manually add the GazeInput capability.
You need to make sure that the 'Gaze Input Capability' is checked on the 'Appx Build Options' tab: Mixed Reality Toolkit -> Utilities -> Build Window)Ĭan automatically enable the GazeInput capability for you. Check out our sample for detecting whether a user is eye calibrated or not.
The HoloLens must be eye calibrated for the current user. This capability can be set in Unity 2019, but in Unity 2018 and earlier this capability is only available in Visual Studio and through the MRTK build tool The 'GazeInput' capability must be enabled in the application manifest. This provides eye tracking data from the platform. An 'Eye Gaze Data Provider' must be added to the input system. #Gaze eye tracking how to#
We will go into detail on how to address each of them further below. If you are new to eye tracking on HoloLens 2 and to how eye tracking is set up in MRTK, don't worry! Eye tracking requirements checklistįor eye tracking to work correctly, the following requirements must be met.
The following assumes you are starting out with a fresh new scene.Īlternatively, you can check out our already configured MRTK eye tracking examples with tons of great examples that you can directly build on. This page covers how to set up your Unity MRTK scene to use eye tracking in your app.
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