Home Forums Unity SDK Sacade and Gaze Angle Data in VR

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  • #22573
    SHU WEI
    Participant

    Hi Grant and team,

    I am currently designing an experiment to understand people’s gaze patterns in a room-scale VR environment(e.g. a VR lift). While the core XR SDK provides a handy framework for record fixation-related metrics, I have the following questions:

    – Is there a time threshold for focusable events? It seems as long as the gaze ray reaches an object of interest (no matter how short), the focusable status becomes true.
    – Is there a way to record saccade data (saccade count, saccade amplitude) in VR from either the core API or Ocumen?
    – Is there a way to get the focusable event angle? (I am unsure whether the eyeTrackingData.GazeRay.Direction from the core API can be interpreted as the focusable angle etc.)

    Thanks,
    Shu

    #22600
    Grant [Tobii]
    Keymaster

    Hi @swei1215, thanks for your query. Yes, Tobii Ocumen provides fixation filters (more info @ https://developer.tobii.com/xr/develop/ocumen/filter-documentation/) which include Saccade detection.

    The time threshold using the G20M algorithm is not set but determined via the Machine learning algorithm of the G20M.

    For information on pricing for Tobii Ocumen please fill out your contact details @ https://developer.tobii.com/xr/contact/

    #22613
    SHU WEI
    Participant

    Thanks Grant – the information is very helpful! We’ve already reached out for the Tobii Ocumen offering info and looking to know more details.

    Can you also help navigate me to the relevant API to calculate the viewing angle and gaze angle? Presume that’s also the offering from Ocumen?

    Thanks again,
    Shu

    #22639
    SHU WEI
    Participant

    Hi team-

    I am also contacting to see whether you can help facilitate our enquiry (from [email protected]) about the Tobii Ocumen license? We would like to know more details to carry our project and license application forward. Thanks a lot!

    Shu

    #22647
    Grant [Tobii]
    Keymaster

    Hi, I will get a sales representative to reach out to you directly. Thanks.

    #22649
    SHU WEI
    Participant

    All good now Grant, I just got a contact back from the team about the Ocumen, thanks for your help still!

    Best
    Shu

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