In case you are looking for J point, fast forward to the last sentence. Why does it have a glowing ball on the end? For starters, because it looks cool. Of course, there's a bit more to it than that. The camera uses that glowing orb to pin down the controller’s location in 3D space. It lights up when the controller’s in use in a color that will best stand out against the background, which helps greatly with its accuracy . Additionally, some games can flash the ball different colors to give you f