Walking speed and direction

Hi All,

I am trying to get the walking speed and direction of the player walking in the real world.
Basically I would like to animate the movement of the player on a third person character.

Anyone can point me to the right direction?

Thanks a lot,

in SteamVR Plugin,there is a function in FSteamVRHMD.h:
bool FSteamVRHMD::UpdatePlayerCamera(FQuat& CurrentOrientation, FVector& CurrentPosition)
maybe u can get some clue