hm doesn't work as well as I'd hoped. getting some weird artifacts too, maybe my histogram bins are too far apart...
that and the points on the bézier curves between the points on the bézier curves between my key frames are probably going out of range... I think I'll make the palette texture repeat (mirror repeat might be nice) instead of clamping to the edge
I was getting isolated frames of random colours, think I fixed it now, the problem might have been starting the search for gamma midpoint between the low and high cutoffs instead of the entire range.
Mirror repeat palette looks much better than clamping.
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