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[[File:Stock-vector.jpg|thumbnail|Concept Drawing of Chaperone's Visual Grid]]
The Chaperone system is a utility design by [[Valve]] to be used with their [[Virtual Reality#Platforms|VR platform]], [[SteamVR]], and [[Virtual_Reality#Devices|Head Mounted Display]], the [[HTC Vive]]. Once set up, it keeps track of where a user is in relation to the physical walls around them, and if necessary, shows a [[#Collision Bounds|blue grid]]<ref>http://www.tested.com/tech/concepts/504521-htc-vive-vs-oculus-crescent-bay-my-10-vr-takeaways/</ref> within the user's virtual space to notify them that they are in close proximity to a physical barrier. The [[HTC Vive]] provides tracking within an approximately 15 foot by 15 foot area, and the Chaperon system provides the user with confidence that they will not collide with physical barriers as they experience their virtual content.
==Purpose==
A secondary purpose for the Chaperone system is to allow games to interact with the user in a unique way. Because the Chaperone system has information about the user's environment, virtual applications can react to the user's surroundings. It could, for example, generate a location that matches the orientation and layout of the user's room. Conversely, the system could use a techniques like overlapping spaces or [[directed walking]]<ref>http://ict.usc.edu/pubs/Impossible%20Spaces-%20Maximizing%20Natural%20Walking%20in%20Virtual%20Environments%20with%20Self-Overlapping%20Architecture.pdf</ref> to make traverse-able, virtual environments that seem much larger than the user's physical space by distorting the user's perception of distance and rotational displacement.
==Collision Bounds==
Collision Bounds are the blue grid that appears in [[VR]] to warn the user of physical barriers.
On October 27, 2015, Valve introduced different styles of the grid for beta testing:<ref name="collision beta">http://steamcommunity.com/app/358720/discussions/0/483368526588965793/</ref>
==Current Limitations==
