Motion-to-photon latency
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- Main article: Latency
Motion-to-photon latency is a delay between the movement of a user's head and the change of a VR gizmo's display reflecting the user's movement.
Ideally, 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 low latency of <20ms and even really low latency of <7ms.