Sorry, I am from the PAL world. Anyone else experiencing the aspect ratio problem?
Atari home computers were designed and manufactured in California, USA. They were meant and designed for NTSC. Therefore, it is NTSC the primary reference point (I am not sure I could state anything more obvious or better known, indeed), and in much of the visitors stats that I can see displayed on Atari-related sites, it is usually the U.S.A. crowd that totals the most (in raw numbers, that is).
ANYONE will experience this, because this is an objective issue (not a perceptual, not imagined, not an opinion). And the object itself is either your emulation platform or the actual machine. instead. Let's just take a look at the ACTUAL equipment on NTSC, so EVERYONE can see:
Here's the source code in basic:
Here's the output:
Therefore: ALL of our known visual memory of our experience with NTSCs machines will END UP being WARPED horizontally if NTSC's 11h:12v aspect ratio is not accounted for. Everything. Every single of those hundred tiles is essentially showing the wrong proportions, if you do not get the above results. And to correct it, aspect-ratio must be recomputed per every frame you generate on the emulator (@ 60fps or 50fps).
Unless a nice but truthful trick is already known, there goes your "0.01% CPU" usage, down the drain.
Edited by Faicuai, Sun Dec 9, 2018 2:34 PM.