What position, specifically, on the physical headset and touch controllers is reported by ovr_GetTrackingState?
From the doc
: "The SDK reports a rough model of the user’s head in space based on a set of points and vectors. The model is defined around an origin point, which should be centered approximately at the pivot point of the user’s head and neck when they are sitting up in a comfortable position in front of the camera."
However, the eye offsets provided by ovr_GetRenderDesc only have a nonzero offset in the x-direction, which doesn't jive with the above description. What physical points do ovrTrackingState.HeadPose and ovrTrackingState.HandPoses actually correspond to on the devices?