Changes

Interpupillary distance or IPD is the distance between the pupils of your eyes. There are two types of IPDs: [[#Real IPD|Real IPD]] and [[#Virtual IPD|Virtual IPD]]. ==Real IPD==Real IPD is the actual distance between the center of your eyes' pupils in real life. Any [[Head-mounted Display]] require this measurement to accurately position the virtual camera outputs on the screen in front of the user. The outputs have to be directly in front of both of the users' eyes. Any deviation can cause eye strain.  ==Virtual IPD==Virtual IPD is the distance between the 2 virtual eyes (cameras) in [[Virtual Reality]]. This number can change the [[Sense of Scale]] of the objects in the virtual environment in relation to the user.