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Why Advancemame is cool

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Ummon:
A slight addition:

The only caveats I think are those monitors, especially Gateway presentation monitors, that only do VGA or VGA/SVGA. You'll get a 'native' mode, but it'll be progressive scan.

fjl:
Okay, so if I'm getting this right, your basically changing refresh rates and this in turn creates hardware scanlines?

I always thought scanlines where created from the dot matrix layout of the arcade/tv monitors being used.

Namco:
If I had one, I'd put a link to a faq on the subject here, or a wikipedia link or something... preceeded by a slap forehead emoticon.  ;D

fjl:
I'll take that as a "No."  :'(

So then scanlines where created by the original arcade hardware and had nothing to do with the monitor? And just to know if I am correct, a scanline is a blank line between pixels right?

Ummon:
I think Namco was saying in general, 'gee-whiz!'. Scanlines - or, rather, blank lines - are the result of the number of traces the guns make on the screen. In this case, interlace. (Why they didn't make it progressive I don't recall if I read about somewhere, though after looking at some things, a guess is it was due to a combination of limitation of the monitor and (RF) signal transimission.) If you change one variable of the equation - say the vertical refresh, this changes the scan rate - you get the same resolution, hence the same visual result.

You might be thinking something like, 'well, in (say) 1280x1024 I can change the refresh from 60 to 75 to 85 and it's still the same resolution'. Of course it is. Windows automatically calculates the display mode and you'll notice in your monitor menu that the scan rate changed, also. Now it automatically fitting the screen depends on whether the mode conforms to a VESA mode or/and Windows and your video adapter and drivers can accommodate that with the mode in question.

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