SYSTEMS AND METHODS FOR DETERMINING MOVEMENT OF A CONTROLLER WITH RESPECT TO AN HMD

Systems and methods for determining movement of a hand-held controller (HHC) with respect to a head-mounted display (HMD) are described. A camera is located at a lower region of the HMD for capturing images of the HHC. The images of the HHC are used to determine a position and an orientation of the HHC with reference to the HMD. Also, the camera or another camera can be used to determine a position and orientation of the HMD with respect to a real-world environment. The position and orientation of the HMD and the position and orientation of the HHC are used to change to state of an application executed on a game cloud.