Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The orientation read-only property of the GamepadPose interface returns the orientation of the Gamepad, as a quaternion value.
The value is a Float32Array, made up of the following values:
The orientation yaw (rotation around the y axis) is relative to the initial yaw of the sensor when it was first read.
A Float32Array, or null if the VR sensor is not able to provide orientation data.
TBD
Note: An orientation of { x: 0, y: 0, z: 0, w: 1 } is considered to be "forward".