Question – Interesting input latency comparison

Apple Vision Pro passthrough latency (camera to screen) of 11ms sort of in this category.

But I think this is a great trend to equalize multiplayer online games. Playing on 100 ping is no big deal if your input latency is 50% higher than that.

But as an old who learned to code in the 70s, before all your fancy frame buffers and the like, you usually needed to get everything done within a single NTSC frame, and do all of your drawing during VBLANK. It was a very tight loop and you generally didn’t have a lot of logic outside of that loop, and until modern operating systems you weren’t competing with any other processes on the system – you owned it. Ever since with some reversion with iPhone, the goal has been to further and further abstract from the hardware mainly because a little bit of latency is worth adding multitasking, or multi-language support, and so on. iPhone yanked that back somewhat toward a 1 process system, but also Apple focused a LOT on scroll latency and the sensation of direct interaction – so the screen scrolled pixel for pixel with the user input. And I suspect some of the above data is incorrect because I know that the iPhone 5 had better scroll latency than the 4 (each iPhone improved upon that in the early iPhone era) and was closer to 55ms and the 6 is when it started to get inconsistent – I think up to 60ms and that varied a bit from then out.

It’s reported that the pencil on 120hz iPad Pros is 9ms.