Changes

'''Motion -to Photon Latency -photon latency''' also known as the '''End-to-end latency''' is the delay or [[latency]] between the movement of the user's head and the change of the display of [[VR]] device reflecting the user's movement. As soon as the user's head moves, the VR scenery should match the movement. The more delay (latency) between these 2 actions, the more unrealistic the VR world seems. To make the VR world realistic, VR systems want really low latency of 7ms to 15ms.