Changes

The sensors on the controllers are [[photodiode]]s.

==Developer==

'''[[Lighthouse]]''' is a laser-based [[positional tracking]] system developed by [[Valve]] for SteamVR. It tracks the position and orientation of the user's HMD and controllers in real time.

===Chaperone===

'''[[Chaperone]]''' is a system that helps to prevent users from bumping into physical objects or moving outside of the sensor range while using the HMD. The system differentiates soft and hard boundaries. Soft boundaries are the space designated for the specific app or detectable by the sensors while hard boundaries consist of physical walls, obstacles and objects.