Degrees of freedom: Difference between revisions
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'''Degrees of freedom''' or '''DOF''' is the ways an object can move within a space. There are a total of 6 degrees of freedom in a 3 dimensional space. The 6 DOF can be divided into 2 categories, rotational movements and translational movements. Each category has 3 DOF. [[Oculus Rift]] and [[SteamVR]] [[HMD]]s all have 6 DOF. | '''Degrees of freedom''' or '''DOF''' is the ways an object can move within a space. There are a total of 6 degrees of freedom in a 3 dimensional space. The 6 DOF can be divided into 2 categories, rotational movements and translational movements. Each category has 3 DOF. [[Oculus Rift]] and [[SteamVR]] [[HMD]]s all have 6 DOF. Both [[rotational tracking|orientation tracking]] (rotation) and [[positional tracking]] (translation) are required to have a truly [[immersion|immersive]] [[VR]] experience. | ||
==Rotational Movements== | ==Rotational Movements== | ||
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==Translational Movements== | ==Translational Movements== | ||
The 3 translational movements are left/right, forward/backward and up/down. These movements are usually tracked by an external camera or other sensors. Few HMDs use on-board sensors to track translational movements. | The 3 translational movements are left/right, forward/backward and up/down. These movements are usually tracked by an external camera or other sensors. Few HMDs use on-board sensors to track translational movements. | ||
The ability to tracking translational movements are required for [[positional tracking]], the ability to determine the absolute position of an object in a 3D environment. | |||
[[Category:Terms]] | [[Category:Terms]] | ||