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This library enables the use of different eye-trackers on the Processing environment.
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How to install GazeTrack: Eye-tracking for Processing (Tobii EyeX and 4C)

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Install with the Contribution Manager

Add contributed Libraries by selecting the menu item SketchImport Library...Add Library... This will open the Contribution Manager, where you can browse for GazeTrack: Eye-tracking for Processing (Tobii EyeX and 4C), or any other Library you want to install.

Not all available Libraries have been converted to show up in this menu. If a Library isn't there, it will need to be installed manually by following the instructions below.

Manual Install

Contributed Libraries may be downloaded separately and manually placed within the libraries folder of your Processing sketchbook. To find (and change) the Processing sketchbook location on your computer, open the Preferences window from the Processing application (PDE) and look for the "Sketchbook location" item at the top.

By default the following locations are used for your sketchbook folder:

  • For Mac users, the sketchbook folder is located inside ~/Documents/Processing
  • For Windows users, the sketchbook folder is located inside My Documents/Processing

Download GazeTrack: Eye-tracking for Processing (Tobii EyeX and 4C) from

Unzip and copy the contributed Library's folder into the libraries folder in the Processing sketchbook. You will need to create this libraries folder if it does not exist.

The folder structure for Library GazeTrack: Eye-tracking for Processing (Tobii EyeX and 4C) should be as follows:


Some folders like examples or src might be missing. After Library GazeTrack has been successfully installed, restart the Processing application.


If you're having trouble, have a look at the Processing Wiki for more information, or contact the author Augusto Esteves.

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