PICO implementation of the EDIA.Eye module. It parses the eye tracking data coming from a PICO headset (currently tested for the PICO 4 Enterprise) into the standardized EDIA.Eye.EyeDataPackage format.
🔗 Source and readme: ‣
<aside> 💡
To the best of our knowledge, eye tracking in the PICO headsets only works for Android builds, not for any PC streaming (see also here).
</aside>
Provides eye tracking data from a PICO headset. All samples are provided once per Unity Update() via the interface of the EDIA Eye package. The package here "only" solves the parsing into the EDIA Eye compatible format.
<aside> ⚠️
EDIA Eye PICO currently uses an older version of the PICO Unity integration (v3.1.0) and is incompatible with newer versions. As there seems to be limited interest in using the PICO headset and eye tracking support by PICO is unclear (PICO 4E was discontinued and it's unclear whether future PICO headsets will have eye tracking), we did not yet jump through all loops to make it compatible with the more recent version. Furthermore, the implementation based on v3.1.0 of the SDK is tested in our empirical eye tracker comparison (Klotzsche et al., 2025).
The current implementation thus only provides (meaningful) data for the CENTER EYE — no single-eye gaze data! We get and provide Eye Openness and Pupil dilation values per eye though.
tl;dr Do not use single eye gaze data from this package! Center eye = ok! Pupil and Openness for single eyes = ok
</aside>
All EDIA modules depend on EDIA.Core, install this one first (Installing EDIA Core)
As all the EDIA modules are Unity packages, they are all installable via the package manager panel.
+ > Install package from git URL
Enter:
[<https://github.com/edia-toolbox/edia_rcas.git?path=Assets/com.edia.rcas#main>](<https://github.com/edia-toolbox/edia_eye.git?path=Assets/com.edia.eye#main>)
PICO Unity integration 3.1.0
by adding https://github.com/Pico-Developer/PICO-Unity-Integration-SDK.git#3.1.0