- This topic has 1 reply, 2 voices, and was last updated 4 years, 8 months ago by Grant [Tobii].
- 21/06/2018 at 13:08 #8483PoisonNukeParticipant
is there a way to access the calculated gaze-point before it is clipped to the screen-coordinates? The system CAN track the gaze up to at least 60° off-axis view direction, so there should be a large area around the screen where relativly good gaze-points could be calculated (clearly with reduced precision as the angle gets bigger).
I would like to implement some sort of edge-gaze-gesture. When the user looks away from the screen, the offscreen position shall be used to preselect or maybe activate a dedicated function/ability.
And depending on the distance of the gaze to the border, the game shall be paused too.02/07/2018 at 15:00 #8532Grant [Tobii]Keymaster
Hi @poisonnuke, thanks for your query and indeed it sounds like a interesting project you have in mind.
In fact if you download some of the samples included with the Core SDK @ https://github.com/Tobii/CoreSDK and looks at the ‘streams’ applications,
you will see that the Gaze Data stream is normalised to the screen size producing values in the range (0,1) within the established boundary.
Where the user looks outside the screen will produce negative values to the left and top, whilst right and below will have values greater than 1.
I think therefore these outlier values should be adequate for what you are trying to accomplish, but please let us know if we can be of any further assistance.
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