• theunknownmuncher@lemmy.world
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    2 days ago

    CRT filters are just fake scanlines for nostalgia. Blurring the screen does not accurately recreate the way the games were meant to be viewed. This is because CRTs are analog and don’t have discrete pixels at all, the color posphors can be partially lit, resulting in a better looking image. That just can’t be recreated with a filter.

    • 9point6@lemmy.world
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      2 days ago

      Bad ones are yes, I addressed that at the end

      The good ones make use of the higher resolution screens we have today to render the lower resolution images using the real pixels as subpixels to mimic the effect.

      1080p is possibly not enough resolution to be convincing if that’s what you last looked at; but at 4K, every 240i/480i console output pixel gets something like 8-16 real subpixels to work with

      If you want 1 to 1 accuracy, yes you’ll only get that with an actual CRT. But the modern high quality filters are much, much more than just fake scanlines, and can be pretty effective for the games that need them. You can usually choose the signal path to emulate, choose to use an aperture grille or different kinds of shadow mask, and often even deeper tweaks.

      If you’ve not looked at them in a while and you’ve got appropriate hardware to run them well, have another look.