| Option Category | # # DIRECT3D POST-PROCESSING OPTIONS # |
| Description | This option changes the width of the drawn scanlines based on their brightness. 0.0 has no effect and the highest value is 2.0 . |
| Full Command | -scanline_variation <float> |
| Alt. Command | none |
| Reverse Command | none |
| Example | mame64 pacman -hlsl_enable -scanline_variation 1.5 |
| mame.ini Command | scanline_variation |
| Command Default | 1.0 |
| Argument Format | <float> |