#Ic app launcher bluree softwareIn terms of licensing, this kind of software is often either proprietary or distributed as open-source: see Duchowski’s survey of eye-tracking applications in this domain (Duchowski 2002). The available tools for eye-tracking experiments typically aim at solving two main problems: (1) executing tests with eye-tracking hardware and (2) processing and analysis of the experimental data obtained. Vision researchers use a plethora of software tools for experimental studies and data processing (Geisler and Perry 2002 Duchowski and Çöltekin 2007 Christie and Gianaros 2013 Ringer et al. ScreenMasker is an open-source system distributed under the GNU Lesser General Public License and is available at. Performance tests show ScreenMasker’s latency to be 67–74 ms on a typical office computer, and high-end 144-Hz screen latencies of about 25-28 ms. Effective rendering times and performance are ensured by means of GPU processing under CUDA technology. It also provides a variety of settings and functions. ScreenMasker has an architecture that meets the requirements of low-latency real-time eye-movement experiments. This work describes ScreenMasker, an environment that allows create gaze-contingent textured displays used together with stimuli presentation software. We have developed an easy-to-use tool with a graphical user interface (GUI) allowing both execution and control of visual gaze-contingency studies. There is a strong demand for new environments that could be employed by non-technical researchers. The moving-window paradigm, based on gazecontingent technic, traditionally used in a studies of the visual perceptual span.
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