> > Set prescale somewhere around 3 to 5. It's a multiplier. Start with 3 and move it
> > higher if you want it sharper. The higher the value, the more taxing it is on your
> > graphics card so you can introduce lower performance this way (especially if you're
> > using a lower end/integrated GPU).
>
> Even at prescale 5, the output is completely identical to before.
At least on my laptop, prescale doesn't seem to be working with certain video modes.
Try using prescale 3 and replacing:
Code:
video auto
With:
Code:
video opengl
(Other options: gdi, d2d, bgfx)
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Re: "Dirty pixels" in MAME
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