3 ms·
You cannot see at 120 fps.
by 29athrowaway 4y ago
You cannot see at 120 fps.
- Etherlord87 4y agoYou're right, you can't see at 120 fps, because that's not how human vision works. You can't see at any fps. However the more fps there are, the sooner you get the information, and so regardless of the lag on your end (the biology behind the eyes, the brain, and the connection between them), you still add some delay coming from your computer.
- jamesgeck0 4y agoCheck out https://www.testufo.com/ https://www.testufo.com/ on a 120Hz display; the higher FPS is absolutely perceptible.
- tayistay 4y agoIf you're doing a drawing app, then 120fps helps you keep the stroke close to the stylus. Even then it may lag a bit because of a few frames of GPU latency and you have to do predictive stroke points and then adjust your stroke later. See https://developer.apple.com/documentation/uikit/touches_presses_and_gestures/handling_touches_in_your_view/minimizing_latency_with_predicted_touches https://developer.apple.com/documentation/uikit/touches_pres... Similarly, if you're dragging something around with your finger, 120fps keeps that thing closer to the finger. Just improves the UX.