What is r3 on ps4?

R3 on PS4 refers to the right stick button on the PS4 controller. This button is located on the right thumbstick and can be pressed down to activate certain in-game functions, such as sprinting or aiming down sights in FPS games.

In addition to its basic functions, the R3 button can also be used for various other in-game actions, depending on the game being played. For example, in open-world games, it may be used to mark waypoints or objectives on the map, or in sports games, it may be used to perform special moves or actions.

Overall, the R3 button on the PS4 controller adds an extra layer of functionality and control to gameplay, making it an essential part of the gaming experience on the console.