| Option Category | # # BGFX POST-PROCESSING OPTIONS # |
| Description | This option lets you set a png based image which will be mapped over the BGFX rendered screen. |
| Full Command | -bgfx_shadow_mask <file> |
| Alt. Command | none |
| Reverse Command | none |
| Example | mame64 pacman -video bgfx -bgfx_shadow_mask slot-mask.png |
| mame.ini Command | bgfx_shadow_mask |
| Command Default | slot-mask.png |
| Argument Format | <file> |