| Option Category | # # OpenGL-SPECIFIC OPTIONS # |
| Description | This option adds an OpenGL GLSL shader effect to the whole scaled up output screen rendered by your graphics card. Some help and examples can be found here. |
| Full Command | -glsl_shader_screen<integer> <file> |
| Alt. Command | none |
| Reverse Command | none |
| Example | mame64 pacman -video opengl -glsl -glsl_shader_screen0 gaussx -glsl_shader_screen1 gaussy -glsl_shader_screen2 CRT-geom-halation |
| mame.ini Command | glsl_shader_screen(0-9) |
| Command Default | none |
| Argument Format | <integer> <file> |