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→Motion Tracking
===Motion Tracking===
HMD [[Rotational Trackingtracking|tracks]] with the movement of your head and updates the rendered scene based on its orientation and location. This process is similar to how we look around in real life. There are 2 types of tracking: [[IMUrotational|rotational tracking]]s and [[positional tracking|positional]].
[[Rotational tracking]] tracks the 3 rotational movements: pitch, yaw, and roll. It is performed by [[IMUs]] such as [[accelerometer]]s, [[gyroscope]]s and [[magnetometer]]s. [[Positional Trackingtracking]] tracks the 3 translational movements: forward/back, up/down and left/right. Positional tracking is usually more difficult than rotational tracking and is accomplished through different [[Positional tracking#Types|Types]] and [[Positional tracking#Systems|Systems]]. Motion tracking is not only used to track your head in HMDs but also used to track your hands and rest of your body through various [[Input Devices|input devices]].
===Input Devices===
