Degrees of freedom: Difference between revisions
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==Translational movements== | ==Translational movements== | ||
The 3 translational movements are left/right, forward/backward and up/down. | The 3 translational movements are left/right, forward/backward and up/down. Three dimensions are also referred to as X,Y,Z, but some people and programs use XYZ to mean lateral,vertical,depth, in that order, whereas others use it to mean lateral,depth,vertical, or others. Translational movements are usually tracked by an external camera or other sensors. Few HMDs use on-board sensors to track translational movements. | ||
Tracking absolute translational position based on movement measurements is called dead reckoning. | |||
The ability to track translational movements is required for [[positional tracking]]. (positional tracking is the ability to determine the absolute position of an object in a 3D environment) | The ability to track translational movements is required for [[positional tracking]]. (positional tracking is the ability to determine the absolute position of an object in a 3D environment) | ||
[[Category:Terms]] | [[Category:Terms]] | ||