Hi folks, my first post on this venerable forum. My teenage self from ~3 decades ago would probably be dismayed by knowing I've joined something with "Atari" in its name - I was a die hard ZX Spectrum/Commodore fan - but hey, times, they're a-changin'
Anyway, I was wondering if anybody else here has experience with using CRT TVs for emulated micros. I'm using mostly libretro versions of assorted emus (Retropie on RPi 3B+) and it's a bit puzzling getting the display right - I'm confined to composite (I also do have an RGB mod but no compatible TV at the moment), and also to add to the problem, it's a NTSC set.
I'm not 100% sure what are correct resolutions to use in the configs. I'm aiming for 1:1 pixels and artifact-free display - so far using these...
Atari 800 - 640x480- native libretro setting: this looks pretty good actually
Amstrad: 768x544 - it works fairly well despite being bigger than RPi 720x480 output, the border is sacrificed
C64: lr-vice same as Amstrad: 768x544. Seems ok.
ZX Spectrum: 640x480: this resolution kicks in when I disable border (to get rid of heavy NTSC artifacting)
While these look reasonably good, they do not really match the resolutions from real machines I read about, eg C64 displaying 402x292 (or 320x200 with no border) http://codebase64.or...e:visible_area
Could this be improved somehow? Or are these really real resolutions?
Is there any sort of way to display these without problems on NTSC as well? Games are either too fast in NTSC or jerky in PAL, plus on some micros the colours are out of whack. Even though some of the emus have option for NTSC machines.