I noticed that when playing some NES ROMs in RetroArch I see some lines or pixel at the very top and bottom of the screen. This happens regardless of core. I played the same ROM in Nestopia and don’t see the lines so I’m guessing it’s doing some kind of cropping of the very top and bottom of the screen.
Is that something that something that RetroArch can do? I didn’t see anything in Video options. It’s obviously not a big deal but I figured it was worth asking.
Which platform? On PC via RetroArch-Phoenix, there’s a ‘crop overscan’ option that should do it, I believe.
Crop overscan doesn’t seem to do anything for NES, at least not on the Nestopia core.
I’m using PC. I did try the Crop Overscan option in Phoenix, but as GPDP mentioned it didn’t seem to do anything.
Might be related. In smb3, the entire screen seems shifted to the right. This occurs in both nestopoia proper and the retroarch version. PuNES does not have that problem. That is currently what I use for NES emulation.
You probably have overscan set to On on puNES. Turned off, it looks exactly the same as Nestopia.
You probably have overscan set to On on puNES. Turned off, it looks exactly the same as Nestopia.[/quote]
Yes, I just tested that. It looks the same in punes with overscan off. I can’t find the overscan cropping in nestopia at all. And it seems crop overscan does nothing for nes games in retroarch. At least in the of release.
On Nestopia, you can specify the overscan area manually in video options, where it says NTSC Screen.
I don’t understand what those numbers mean though. I’ll stick to punes. Only thing it lacks is no sprite-limit option.
The numbers from Top to Bottom specify the vertical range of pixels that will be shown, while Left to Right is the range of horizontal pixels. The default Left to Right range of 0 to 255 basically means it is showing the full 256 pixel-wide horizontal area. To obtain more overscan, you would increase the Left number and decrease the Right number, lowering the horizontal viewable area. The same applies to Top and Bottom.
Try a Left value of 12 and a Right value of 243. This completely eliminates the blank area on the left and the garbage on the right.