Uncoupled Look & Move is Simply Natural
How odd would it be to go down the sidewalk and wherever you looked, you headed? It would be sort of like wearing a neck brace... and no one likes to wear a neck brace.
In reality, your motion is naturally defined forward by your torso. Why is it in VR that forward direction is defined by look direction?!? Great question!
Get RID of Your Neck Brace for Better VR!
Here were my thoughts when first introduced to VR gaming:
HMD’s have the capacity to do better, but the VR community accepts that the MOVE FORWARD is defined by FACE FORWARD direction. This is so unnatural, inefficient, and disconcerting in VR, but it's seemingly going unchallenged. TORSO FORWARD (specifically hips forward) should define forward as it is simply the natural way.
The turris not only challenges this face forward paradigm, but also fixes it! The turris tracks the angle of your torso and works with the Head Mounted Display (HMD) to ensure that you can look freely and still move in the torso defined and intended forward direction.
More VR, and Less Sickness
We have done over 500 demos (and counting) of our original prototype. It's always amazing when a seasoned VR user tries the chair and experiences uncoupled look for the first time. They always comment on how intuitive, effective, and efficient uncoupled look is. We've noticed that with proper coding and frame rates, uncoupled does wonders for reducing VR induced motion sickness!
So, how do you do this?
It's actually quite simple. The turris measures the angle of the occupant's torso and feeds it back to the application so that the player axis is defined by torso angle. The HMD is then constrained to that player but "uncoupled" so that the view from the HMD is not affected by the torso angle, but only by the angle interpreted by the HMD. The torso angle information is presented as a part of the HID packet.
Where does all of this happen?
Deep inside the turris, nustled up against the rotary slip connector, we have the quadrature rotary encoder that keeps track of the orientation of your body! Each degree moved is added or subtracted from the original calibration position and can be as accurate as one degree. We have found that it is difficult to perceive any tighter resolution than 2 degrees.