2 ms·
Weren't most TV's running 25hz or 29.97hz? Double for interlace, but that would still be ~30 fps?
by 0x0 10y ago
Weren't most TV's running 25hz or 29.97hz? Double for interlace, but that would still be ~30 fps?
- ZenoArrow 10y agoI'm not sure which framerates were used on SMS games, but I remember a bunch of Dreamcast games (that I used to play on an old CRT from the early 90s) had you choose between 50Hz and 60Hz when starting, so clearly CRT TVs were capable of using signals higher than 29.97Hz.
- izacus 10y agoPAL TVs had 50Hz interlaced screen refresh (each refresh updated only half of scanlines, but that's not the same as having a 25Hz refresh). NTSC was 59.94 Hz. The console hardware had to drive an actual 50/60Hz signal and you had to account for that - including doing some updates/color switches/bank switches in horizontal blank interval (when the cannon was returning to the left side to start a new line) and vertical blank interval (a longer one, when cannon was returning to the top to start displaying another interlaced field - "frame"). So you couldn't just behave like you have a 25/29.97 Hz refresh. A lot of games did the refresh in lockstep with this frequency so there were actual issues porting them between regions.