Curious resolution question

[IG-88]

I'm not sure quite how too explain this and it's probably too vague a question but I am wondering why my 64mb ATI all-in-wonder 7500 vid card produces a much more realistic/authentic looking arcade like picture than any other card I've tried? On a PC monitor it just looks fantastic, whereas my 128 mb XGI Volari V3 card (or any other I've tried) displays a more blocky, sharper image. Which is OK,

[RayB]

Those are scanline effects done (partially) via DirectX, and not all cards have the features required for them.

[IG-88]

Would you happen to know of any other cards besides the all-in-wonder that can do that?

[RayB]

I have no idea. There are other factors as well that could affect the display. For example, are you using 100% the exact same configuration for both cards you tested? If you used MAME32 on one and then a different MAME (DOS or Windows command line MAME) for the other, that would also affect the display output.

[Minwah]

The images with the ATI are smoother, (blurred??) more arcade like, and if you set 2 monitors up side by side with one running the ATI and one running any of my other cards, there is a definite difference.

Sounds like the filtering which occurs with many (most?) video cards, when using hwstretch.  Maybe your other card can stretch without the filtering.

[IG-88]

The images with the ATI are smoother, (blurred??) more arcade like, and if you set 2 monitors up side by side with one running the ATI and one running any of my other cards, there is a definite difference.

Sounds like the filtering which occurs with many (most?) video cards, when using hwstretch.

[JB]

The images with the ATI are smoother, (blurred??) more arcade like, and if you set 2 monitors up side by side with one running the ATI and one running any of my other cards, there is a definite difference.

Sounds like the filtering which occurs with many (most?) video cards, when using hwstretch.  Maybe your other card can stretch without the filtering.

Lets see if I understand you correctly. The filtering that occurs with my other cards using hwstretch is what makes the images display with a more "blocky/sharper image" and my ATI card is (possibly) stretching without using filtering? Correct? So... how do I get my other cards to stretch without filtering? Or is that even possible? Is there a setting in Mame that can do this?

Other way around. The cards that stretch WITH filtering makes the display look blurry.
Which is a good thing when dealing with software that expects a blurry display.


It's possible to force cards that normally stretch with a filter to stretch without one, but I don't think the opposite is true.

[Silver]

How much of a difference are you talking? Could you post a couple of comparison pics?

[IG-88]

I'll try and post some pics, tho my camera sucks.