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Ultimarc Arcade VGA2 comparisons using a LCD for PC
genesim:
Randy,
You know what, lets cut out all the BS.
The supposed hole I dug myself in can be referenced here.
I stated that getting the pixel representation correct FIRST was the place to start in achieving the display most closely matched to the original.
Are the two pictures congruent or at least pretty damn close in reference to Direct Draw(no stretch) vs Arcade VGA. Referencing your original Arrow.
Then isn't the second step getting the scanlines correct to finish it off??
Hardware stretching is not accurate, and Direct Draw with Hardware Stretch, while giving an illusion, is not correct.
krutknut:
Genesim, when you run PacMan on the Arcade VGA card, and push the button on the monitor that displays the actual resolution, then what does it display?
genesim:
I haven't tried it for Pacman, but for Mortal Kombat it shows it displaying exactly 400x256. The screen shot I first posted was an exact snapshot of the resolution selected. If you are referring to the physical monitor it is always on highest settings. That is the way it should be. The hardware is doing the work, but it is making it think that the monitor is running in full mode, but it is really using multiple pixels to display the low res. That is how bitrate prescaling looks similar because it is basically doing the same design. The problem is that it is using MAME defaults over closer approximations provided by the Arcade VGA.
I think I can find a way around this though. Just haven't had time at home to do it.
Also the frame rate was 53 fps. I don't know how this was possible being at best the LCD can only display 75hz.
I admit I don't understand it completely. I am curious myself though on how Pacman will show.
I got alot of testing, and I am anxious to see how this turns out.
I also am going to take some screen shots of bitrate at high res vs arcade vga settings at 352x288. Then I want to try to show scanlines as well.
MAME32 PLUS for some reason shows the scanlines vertical wich makes no sense. I might just have to go back to MAME32 if I get good results.
Malenko:
when you run pacman, are you rotating the monitor 90 degrees like they did in the actual arcade machines?
krutknut:
Right... it's the resolution of the monitor I'd like to know, for the PacMan screenshots.
Since the Arcade VGA uses multiple pixels, other programs can of course do that as well, achieving exactly the same results. But to compare, the same monitor resolution should be used.
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