Well, actually, they would be for any C64 and Amiga owners in North America who don't want to deal with import fees. Yes, PAL has 100 more scanlines and gives you more time to do things in V-blank at the expense of a lower frame rate, but you're also going at the expense of how many consoles can run this. If I'm correct, NTSC games run fine on PAL consoles but just a bit slower?Oziphantom wrote: ↑Fri Aug 21, 2020 7:03 am30 or so years of PAL only C64 and Amiga demos hasn't been a problem. For Demos you want the more powerful version, so they tend to be PAL only to get more out of them. It seems silly to cripple a demo because NTSC exists. This is technically not true on a C64 as the Drean model is the most powerful however they are really really rare so nobody actually targets them.turboxray wrote: ↑Thu Aug 20, 2020 4:44 pmYeah, but still PAL *only* demos are pretty lame for systems that are not PAL only.Oziphantom wrote: ↑Wed Aug 19, 2020 10:48 pmThe issue is the VBlank time. NTSC has this tiny small useless VBlank period. While PAL has basically double the VBlank this means we can DMA an entire frame to VRAM in 1 Vblank, so we don't have to double buffer VRAM. So while we could run it on NTSC and say its 3 frames on pal, it would drop to 4 frames on NTSC. however 3/50 = 0.06 and 4/60 = 0.066666 so practically the same speed. We would have to double buffer VRAM and lose the sprites.
It's a shame we don't have any PAL required SNES games.
I can see why you'd think it'd be silly to cripple a SNES demo just for compatiblity with some faraway regions, but honestly, I'd still be impressed even at 20 FPS. I already know PAL SNES can do better, but I don't know if NTSC SNES can, so I'd still be impressed if there's a version I can run on my NTSC RetroDuo. Still, it's your demo, if you don't want to do even more work for 525-line regions, that's your decision and I won't hold it against you.
Yes, I know emulation makes this all irrelevant, but c'mon, you know demos often leave emulators shook.
And yes, we do actually have a PAL required SNES game: Tintin and the Prisoners of the Sun struggles to run on my NTSC RetroDuo. The tilemap doesn't update properly and the palettes keep flashing colours. It's literally unplayable in North America.