Recently, Meta launched the Air Link Frame Rate Protection Function (AFI) for its VR headset device Quest 2, which aims to solve the problem of delayed or frame drop when users use Wi-Fi to connect to the headset, and further reduce the vertigo of these users.
Air Link allows the player's headset to connect to Wi-Fi and wirelessly stream VR games running on a PC. The Oculus developer blog pointed out that when the headset is connected to the computer through Wi-Fi, its performance has a lot to do with the signal strength of Wi-Fi, as long as the signal is disturbed, there will be screen jitter or frame drop, which is very unfriendly to those players who are prone to VR.
Air Link
The AFI introduced this time is an experimental feature of Quest 2, which will observe the movement between different frames before the screen has problems, speculate on the original appearance of the problem frame, and generate a composite frame to mitigate its impact when the frame is dropped, ensuring the player's game fluency as much as possible.
This feature is disabled by default, and to enable it, you need to start the Oculus Debugging Tool (ODT) and set the Mobile ASW option to Enable-Framerate Insurance.
AFI settings
At the same time, the official recommendation is that it is best to turn on the PC ASW at the same time when enabling AFI to maximize the delay of the link, but this will accelerate the power consumption. Currently, AFI does not support 120Hz, so players need to make sure the headset is set to 90Hz, otherwise the delay and jitter will be noticeable.