Quest pro eye tracking vergence

I am using head space, because I am building stimuli that are static to retina. Anything that gets though the API is abstracted, and they don't give you low-level data, so you can"t process it further. See the white paper here.

This is actually a good thing from a privacy standpoint.

Re coordinate space conversion, I butchered their script so I would export a gaze vector in spherical coordinates with respect to the head. That being said, I don't use it for interaction, I am kind of simulating different visual deficits.