Reply To: Where is the Hyllian shader? Home › Forums › RetroPie Project › Video Output on RetroPie › Where is the Hyllian shader? › Reply To: Where is the Hyllian shader? 03/30/2016 at 03:41 #121920 retroashParticipant Hey there, you can find the hyllian shaders right here: https://github.com/pinkeen/libretro-common-shaders-glsl or https://github.com/RetroPie/common-shaders. Just download the .zip and they are in the ‘CRT’ folder.