See also 1. the post by _Return of Obra Dinn_'s author about his brilliant camera-stable dithering approach https://forums.tigsource.com/index.php?topic=40832.msg1363742#msg1363742, 2. https://surma.dev/things/ditherpunk/ summarizing & visualizing many dithering techniques including (1) 3. the mind-blowing explaining a 3D-stable algorithm https://github.com/runevision/Dither3D inspired in part by (1).