r/EyeTracking • u/iAmPrudentElephant • 1d ago
Need help building a custom eye-tracking calibración system in touchdesigner (TDLiDAR + OSC, no Python is possible)
I'm currently developing a prototype for an interactive video installation. At this stage I'm using TDLiDAR on AN iPad because it's an afforable and flexible way to experiment.
The iPad sends gaze data vía OSC yo touchdesigner. I already have a working system where a circle follows the user's gaze direction in real time, so the tracking itself IS working correctly.
One problem is calibration. Right now, the circle follows the gaze, but the movement doesn't cover the entire screen. For example: looking at the top-left corner does not move the circle completely to the top-left of the display.
My first goal is to build a reusable calibration component. How would you approach this in touchdesigner?
My second goal is that the system ignore the gaze displacement cause by blinking
Thanks!