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nirhere's avatar
nirhere
Honored Guest
1 year ago

Meta Quest Pro Eye tracking - reading eye openness value

Hello,

I'm interested to know if there is a way to retrieve the value of the eyes openness or at least to detect if the eyes are opened or closed 

is there documentation of the SDK where I can look for such functionality

thanks,

nir

Eye tracking
Movement SDK
OVR Unity

1 Reply

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  • VrDevMV's avatar
    VrDevMV
    Protege
    1 year ago

    Hi,

    we're using XrEyeGazeFB.gazeConfidence that provides a limited reliability. On some users (more than half, in proportion) it will return a "clean" value.

    // Provided by XR_FB_eye_tracking_social
typedef struct XrEyeGazeFB {
    XrBool32    isValid;
    XrPosef     gazePose;
    float       gazeConfidence;
} XrEyeGazeFB;

    https://registry.khronos.org/OpenXR/specs/1.1/man/html/XrEyeGazeFB.html

    Below a series of mathplotlib based on the data we receive from the Quest Pro. First ones are OK, later ones are less usable (depending on what you need to the `openness` value for...)

    If someone has a better solution, I'm all ears ! 🙂