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→RetroArch/Libretro
3 shader preset folders for 3 monitor types: 1080p, 1440p and 4k so whichever monitor you have, you can choose the right shader resolution for your monitor type. These presets were designed to be used on these three resolution types only. Not OLED, 720p or other random resolutions, if you use it on any type of display besides those 3 standard displays [http://forums.libretro.com/u/sonkun Sonkun] may not be able to help if you run into any issues. If they end up looking ok to you on your display regardless then game on. 64 shader presets to choose from per folder with 3 different phosphor types for USA, Japan and PAL that come in both color temp and multiple cable types to choose from included (representing 4 cable types to choose from: rf, composite, s-video and rgb and 3 composite types to choose from: standard, artifacts and Megadrive rainbow. Also S-Video presets includes [https://github.com/Hyllian Hyllian]’s “sgenpt-mix multpass” shader to take care of checkerboard dithering and lite vertical line dithering)
Recommended to use with these shaders is rf/composite for all systems from the 4th generation consoles and below (nes, snes, genesis, atari, turbografx etc.), s-video for 5th and 6th generation consoles (ps1, saturn, n64, dreamcast, ps2, gamecube) and rgb for arcade. Also for NES cores I recommend changing the Palette setting. The two most popular cores are mesen and nestopia. For Mesen you should use the “Original Hardware (by FirebrandX)” setting, for Nestopia use the “NTSC hardware FBx” setting as Sonkun composite presets were designed with those pallets settings. Also with Mesen you should change both the top and bottom overscan settings to 8px to avoid harsh moire patterns on the screen. For Nintendo 64 mupen64plus-next core with Parallel-rdp settings enabled Sonkun also recommend changing the “crop overscan” setting to 8 to help reduce moire patterns that appear on the screen with that setting at default 0.
===[https://forums.libretro.com/t/mega-bezel-reflection-shader-feedback-and-updates/25512 HSM's Mega Bezel]===
