public static Vector3f vecO2J(OVRVector3f from, Vector3f to) {
        // jME and LibOVR disagree on which way X and Z are, too.
        to.set(
                -from.x(),
                from.y(),
                -from.z()
        );

        return to;
    }
Copy the values from a LibOVR vector into a jMonkeyEngine vector.

@param from The vector to copy from.
@param to   The vector to copy to.
@return The {@code to} argument.
jme3-vr/src/main/java/com/jme3/input/vr/oculus/OculusVR.java