CSC emitter

Text Marks across Data rows Row gap Scatter Dissolve Mintis mark in the middle Density Error correction Unit size Motion Hold per frame Steady timing, no jitter Dark polarity

Every frame change is logged with its motion onset and settle time, on the page clock and as Unix milliseconds, and dispatched as a csc:frame event on window, for lining stimulus up with a recording. Times are when the page drew the change, good to a display frame; a photodiode on the screen gives the true onset.

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