Re:Computer input latency from 1977-2017 (2017)
by cgriswald on Thursday December 03, 2020 @03:16PM
(#25294126)
I'm wondering if this is why I find 120hz so jarring. It's almost as if I can't perceive the 'hopping' consciously, but I can subconsciously. It feels like my brain is asking "Wait, how did you get over there?" where "over there" is a fraction of a millimeter. I think maybe there is an uncanny valley for motion.
The easiest way to show this is by wiggling your mouse around quickly on a computer screen.
At 30hz - you'll see the mouse teleporting around - hopping from spot to spot, but not moving. For example, if you stare in the middle, and jerk the mouse quickly to the right, you'll see the 4 or 5 spots where it rendered.
With 60hz, you'll see the 9 or 10 spots - and have a stronger illusion of movement.
With 120hz, it might even look as smooth as a real object flying across your screen.