Neo-Geo ROMs show with very washed up colors

Urkel

I tried starting a couple of Neo-Geo ROMs to test out the PolycadeUI interface, specifically Windjammers and Street Hoops and both ROMs function properly but appear to be showing with very washed up colors. I'm not sure if it's the contrast set way too high or perhaps the presence of very heavy scan lines or both. I tried to take a picture of it but it's impossible to depict the issue with a phone camera. It definitely shows with very different colors compared to how it started before. Is there a way to edit those parameters?

admin

To make sure I've got this right:

you launched Windjammers with a previous polyface or Steam setup and it looked normal
you updated to the new PolycadeUI and added the new supporting files
you tried Windjammers again and this time it showed up with washed out graphics

MAME (the emulator that runs arcade games like Windjammers), has lots of video settings.
We did change some video settings in the recent update, so it's possible that this caused the issue you are seeing. That said, the machine I just tested has the same version and supporting files, and the games look normal.

If you'd like to play with the video settings in MAME (the video settings are called HLSL), here's a little more info:
https://videogameperfection.com/2014/07/27/hlsl-for-everyone/
https://docs.mamedev.org/advanced/hlsl.html

Urkel

That is correct and thanks for this. My colors definitely looked way off. In the sand court I could barely distinguish my character moving up and down from my usual viewing angle. I will try to see if I can address the issue with the info you shared.

admin

Not sure if you were able to resolve this issue, but if not: someone else asked about removing scan lines here: https://forums.polycade.com/d/12-can-you-remove-the-scanline-filter