The CRT-shader authors have intended for these shaders to be displayed at a resolution of г. As usual, all shots are at 4x (which is a bit small for Gameboy resolution, but oh well YouTuber MrHArias shares with us this awesome collection of bezels for your RetroPie build – Bezels are ‘screen fillers’ for widescreen monitors/tvs so you can play the games in their true ratio without the ‘orrible black bars on the side, now you have pretty system/gaming related bezels. It is developed by the final burn team and originated from FinalBurn by Dave. Hyperspin is the ultimate frontend for your arcade machine allowing you to play classic arcade games in MAME to the latest game consoles that have available emulators. RetroPie Setup Script > Configuration / Tools > esthemes. CRT-Royale is a highly advanced multi-pass CRT shader that simulates almost every aspect of the CRT screen. Insert the micro SD card into your Raspberry Pi and start it up.
Unlike cgwg's, though, the Gameboy shader also uses some lookup textures (LUT) that require no text editing and can be modified using an image editor such as Photoshop or GIMP. RetroPie has tons of emulators for different consoles built right in.
RetroPie: Enable Video Shaders and Add Video Shader Hotkeys This post will go over how to enable shaders and set up hotkeys so that you can change shaders while playing games.