[ant6n]

I personally am not a big fan of the banding effect due to small number of light levels. One way to reduce that would be to introduce a 2x2 dithering matrix grid across the whole screen that introduces small “luxel” deltas like 0.5, -0,5; 0.5, -0.5. Some pixels will be brighter, some darker, reducing the banding. Could also try different matrices.