[jonwest]

The “Death to Pixels” shader pack for Retroarch has done an awesome job of tricking my nostalgia brain when playing old games. (https://forums.libretro.com/t/cyberlab-death-to-pixels-shade...)

I wonder if these are more efficient in sone way? Or accurate?

[BearOso]

I doubt there's much difference. Just implementation details. The retroarch spec is a lot to code if you're just looking for one or two shaders.

Also FYI: your link features a lot of shaders using the megabezel presets, which are extremely unoptimized. The koko-aio bezels in the same slang-shaders repository can do the same effects, but with much better performance.