traclabsar Posted January 16, 2020 Share Posted January 16, 2020 I have a Unity application that needs to record pupil dilation as an indicator of user stress levels. For this to be meaningful, it needs to be normalized relative to scene luminosity. I don't see any obvious way to measure overall luminosity short of adding up all the pixel values and dividing by the number of pixels. Is there system parameter that provides this value or an API call that does that calculates it? Link to comment Share on other sites More sharing options...
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