Homepage › Forums › RetroPie Project › Video Output on RetroPie › retropie 3.5 …can't enable shaders??? › Reply To: retropie 3.5 …can't enable shaders???
i think: video_shader is the single shader you actually want applied (assuming you have video_shader_enable set)
video_shader_dir is the root directory of all the shaders which is used by the GUI to give you a list of options in the shader menu.