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Grant [Tobii]

Hi @tufeixp, thanks for your patience whilst we investigated the issue. Certainly the 5th Generation contains significant performance enhancements so you should experience much smoother and faster tracking compared to previous models.

With respect to the co-ordinate system, I can confirm that within the Tobii Stream Engine API, that the centre of the screen indeed is the origin point used for all reported coordinate variables.

I appreciate our documentation could be more expansive on this topic and have made a request to include this information in future releases.