vive tracking data extraction

[wangmm]

Hi, I am using the unity to do some VR research. My current hardware is Vive eye-pro headset. I wanna know how to extract the eye-tracking data like gaze origin and gaze direction. Though there are many files in the Srainpal SDK, but I still cannot find where the data is. Also, the document in the SDK wrote very few things about the data extraction.

I read all the post in the eye-tracking forum blog but find nothing detailed. Can anyone help me to get out of this? I am very new about this!! APPRECIATE FOR YOUR HELP!!!