Eye-Tracking Display

Though not part of the installation, effort was made to try to incorporate a visual smearing effect based on the actual fixation sites and saccades of the eyetracking. The matrix for computing this is shown in Figure-13. This matrix shows the actual eye-tracking in real-time and can be sent as the alpha channel with a jit.gl.videoplane set to ``@blendingenabled 1'' to see an actual smearing effect with the eyes controlling the effectively displayed pixels. However, the essence of the installation was focused towards an actual film rather than an eye-tracking display. And thus, the representation of simply showing the fixation sites and saccades was not representative enough of the actual experience to have it a part of the film editorial process.

Figure 13: This sub-patch receives the eye-tracking data in real time from the audio/eye-tracking computer via OSC and creates a visual display in the matrix, ``Alpha'', which could be used either to display the eye-tracking directly, or to alphablend/smear the output film.