Disabling Built-in Gaze Filtering on HTC Vive XR Elite

[pmanakhov]

Hi there,

I’m considering using the HTC Vive XR Elite with the Full Face Tracker add-on (https://www.vive.com/us/accessory/vive-full-face-tracker/) for eye tracking research. Specifically, I require the ability to disable the built-in filtering of gaze data, similar to how it's done with the HTC Vive Pro Eye via the SRanipal SDK (https://forum.htc.com/topic/9119-questions-i-have-again-after-using-eye-tracking-for-few-months/#comment-38989). However, after exploring both the OpenXR (https://developer.vive.com/resources/openxr/unity/tutorials/getting-the-data-of-eye-gaze/) and Wave SDKs for Unity (https://hub.vive.com/storage/docs/en-us/UnityXR/UnityXREyeTracking.html), I’ve been unable to find a way to turn off the filtering. Is this possible with the Vive XR Elite?

If not, where can I find detailed information about the gaze estimation pipeline for the Vive XR Elite? I’m particularly interested in how the online gaze filtering is implemented — what type of filter is used, how saccades are handled, and what the specific filter parameters are, if available.

Thank you!