| Option Category | # # DIRECT3D POST-PROCESSING OPTIONS # |
| Description | This option sets the brightness of the drawn scanlines. 1.0 is the default level. Any value over 1.0 will brighten the scanline and below will darken. |
| Full Command | -scanline_bright_scale <float> |
| Alt. Command | none |
| Reverse Command | none |
| Example | mame64 pacman -hlsl_enable -scanline_bright_scale 5 |
| mame.ini Command | scanline_bright_scale |
| Command Default | 1.0 |
| Argument Format | <float> |