4-post thread, 3 images, 21 likes, 2894 views. Previous CRT shader
was broken; corrected, energy-conserving sub-pixel line width raster
using individual channels. Each scan line simulated with only 3
pixels but 9 sub-pixels; reaches 7/8 of display peak brightness; some
perceptual scan effect preserved. Scan line thickness adaptive to
linear brightness: thins = energy-conserving + thin-pixel brightness
compensation; bloom = lines overlap. 'CRTs feel like they have more
contrast than they do because individual scan lines are super bright
when in focus; the black surround feels darker to the mind.'
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