The Three (and a half) Configurations of Eye Trackers

Eye tracking could become a critical sensor in HMDs. In previous posts such as here, here and here we discussed some of the ways that eye trackers could be useful as input devices, as ways to reduce rendering load and more.


How binocular overlap impacts horizontal field of view

In a previous post, we discussed binocular overlap which increases overall horizontal (and diagonal) field of view. HMD manufacturers sometimes create partially overlapped systems (e.g. overlap less than 100%) to increase the overall…