MAMEWorld Forums - Ultimarc - Re: Arcade VGA 5000 with HDTV display rotated

> Sune,
>
> I am very very thankful for your thought out response. I am glad that they are so
> many good people out there willing to give explanation for those that are trying to
> get problems solved.
>
> I guess our differences on pixel scaling is more semantic. I understand now that the
> resolution isn't exactly changing, but in the end if there is any kind of scaling you
> have to have multiple pixels displaying bigger dots. I have never actually counted
> how many pixels on an Arcade screen make up one say..pellet on a Pacman display, but
> at the same time an LED display at a higher display, has to dedicate more pixels to
> draw the same pellet picture. Eventually if you have enough pixels, the difference
> won't be as perceptible.

Yes. I don't pretend to understand the technical side of it but that's what the prescale setting does for you. You can try setting it higher but going beyond 4 doesn't really make much sense, at that point you're starting to scale the game to a resolution that's higher than your actual display resolution, except for the really low res games like Do! Run Run for example. 3 is a good compromise at least for me @ 1920x1080.

> I think it is all a trade off. While I understand people wanting authentic to what
> was played in the arcade, I also have always criticized the color bleeding not being
> uniform, the curve most of the time not being programmed for (i.e. uniform coding),
> the overall dimming that comes much faster on arcade displays, more prominent burn
> in,radiation, picture distortion to the edges...etc.

That's what HLSL is for. Try enabling it in mame.ini. It probably won't look so hot with the default settings but you can tweak it yourself or look for HLSL settings posted by other users here. Note that HLSL has its own prescale setting. Depending on what video card you have, some settings can really put a load on it, so be careful, sometimes there is a different way to get the effect you want with much less of a performance hit. It's fun to play with, you decide if you want it to look like a worn out, badly calibrated arcade monitor where the colors are off or misaligned..or a brand new one that just left the Wells-Gardner assembly line back in 1986.

> When I play Mortal Kombat with Direct Draw or Direct 3D I seem to get similar results
> (or perhaps it is imperceptible to me).
>
> But the Arcade VGA is supposed to run Mortal Kombat at 53hz.

It doesn't matter if your monitor can't actually sync at 53 Hz - it probably can't. Either way as I said you can easily create a custom resolution @ 53Hz in your video card control panel and test it yourself. Try the native res of your HDTV with a 53Hz refresh rate. It probably won't work though.

> Andy says it may or may
> not work on my HDTV depending on how the signal is sent to my PC through the VGA
> input.

Hold on. The input is on your monitor, not your video card.
I hope you aren't using VGA with your HDTV! You should be using a digital connection, DVI, HDMI or Display Port.

> If it does a kind of simulation this could be interesting because the website claims
> to have this mode and can do it for a PC Monitor.

Yes, if the monitor can actually do 53Hz.

> I know it seemed to work with my LCD display years ago but I don't know how. If it
> does, I don't know how he can with it not being an even multiplier...but that would
> be pretty cool to again have some kind of emulated frame rate. Is this just a pipe
> dream? Anyone with experience on modern displays?

Google Gsync. AMD/ATI offer a similar thing now but I can't remember what it's called. Note that you need a display that's built for it, you can't do it with the HDTV you have.

S