>>715216726
Iirc with 8k you have ~enough pixels to accurately recreate the way CRT generates the picture.
On a CRT display the picture is displayed by tiny groups of 3 lights, one is red one is green one is blue. On shadow mask CRT the lights are like dots, and three (rgb) of them form a triangle group (triad). On aperture grill the lights are like rectangles, and three (rgb) of them form a ~square group. And you need ~multiple such "groups" (i.e. more than just 3 rgb lights) to display a single (1, one) pixel.
Let's say CRT needs 4 triads, i.e. 12 light dots, to display a single pixel.
So if you want to accurately emulate CRT on your OLED or whatever display, you're gonna need one OLED pixel for each such red/green/blue light. So that would be 12 OLED pixels to emulate 12 light dots forming a single "CRT pixel".
So for something like 640x480 you're gonna need x12 bigger resolution, i.e. 7680x5760. The numbers are very approximate, but iirc people from shaders community did the math, and 4k was still not enough, but don't quote me on that.
It's not gonna magically solve all the problems, but that's basically the bare minimum if you want to actually 1:1 emulate the way CRT picture looks. Because as you probably realized by now, all modern CRT shaders are just approximate recreations.
