If you want smooth scrolling in (emulated) games on Mac, use OSX with working vsymc and play NTSC games that do 60fps. (mame osx) OS9 does not support vsync.

dr.zeissler wrote on 2025-08-31, 19:03:

If you want smooth scrolling in (emulated) games on Mac, use OSX with working vsymc and play NTSC games that do 60fps. (mame osx) OS9 does not support vsync.

Is possible to use 50hz modes in OS9 too, to play pal games, classic MacOS is fun OSX is boring as hell jeje

But you will never get vsync on OS9 regardless if you do 50hz or 60hz.

dr.zeissler wrote on 2025-09-01, 05:20:

But you will never get vsync on OS9 regardless if you do 50hz or 60hz.

How can an OS not support vsync? Even a lowly C64 has games with smooth scrolling, same with ZX Spectrum...

There is no option for that in OS9 and the ati-drivers. And the OpenGL games seems not to support or use vsync.
Same is for emulators under OS9 like MAME, geomame, snes etc,
If other drivers (Nvidia) offer that I don't know. Later OSX ATI drivers offer the switch to control vsync, AF, AA etc.

dr.zeissler wrote on 2025-09-01, 05:20:

But you will never get vsync on OS9 regardless if you do 50hz or 60hz.

Yes, you need to use external plugin emulator enhancer for example, to have vsync. Depends your hardware, i think for example rave support it opengl too

https://www.macintoshrepository.org/33119-emulator-enhancer-

Sure that this EE works in OS9. For OSX host use the tockbox for vsync in the emulator. SNES e.g. and you are good to go for NTSC games and for PAL you have to use that monitor switch-tool from the french guy that let's you customize even 50hz modes.

Back to the topic, I think there are some smooth scrollers but they are for 1Bit 512x384 b/w games on that tiny 10" AIO macs. I think I saw a video about a vector sidescroller....but I am not sure about it.