I am setting up a multi-arcade cabinet with a 4K display (60Hz max) and using CRT shaders. It looks great and I am mostly happy.
EDIT: I am using the FBNeo core, because it seems the best way to take advantage of run-ahead latency when playing arcade games.
Weird issue driving me nuts, however, is that in some older side-scrolling games I see background artifacts. It could be tearing, but maybe something else.
For example, I notice it in Black Tiger. Newer games don’t seem to have the issue (like 3 Wonders).
I have tried to eliminate possible causes, and I am pretty sure it has nothing to do with integer (or non) scaling, aspect ratios, video drivers, shaders, triple buffering or audio sync.
My display won’t do higher than 60Hz at 4K, so I can’t test higher rates. I might just try lower resolution at higher rate to see what happens, but haven’t done that yet.
I do notice that if I set my video card to max out at say 50Hz, it seems to alleviate the problem.
Or if I set Vsync to 2 frames, the problem goes away completely… but obviously the playspeed is cut in half.
Anyone have any suggestions? It’s not a deal-breaker, but it is SO close to perfect that little things like that are annoying.
It seems odd the problem is most pronounced in games that should be easier to run… I am wondering if that’s a clue as to the culprit.