Gaming device with rotatably placed cameras

A wearable device for identifying positions of an arm of a user, the positions being used to render a virtual arm to be displayed in a head mounted display (HMD) when presenting a virtual environment in the HMD, comprising:

• a front-facing camera located on a first side of the wearable device, wherein the front-facing camera is configured to capture images of fingers of a hand of the arm, the wearable device being attached to a wrist of the arm, the front-facing camera disposed on the wearable device to face the fingers of the hand;
• a rear-facing camera located on a second side of the wearable device, wherein the second side is located opposite to the first side, wherein the rear-facing camera is configured to capture additional images of a forearm associated with the arm, the images and the additional images captured to produce a stream of captured image data during a session of presenting the virtual environment in the HMD;
• and
• a communication device coupled to the front-facing camera and the rear-facing camera, wherein the communication device is configured to send the stream of captured image data to a computing device that is interfaced with the HMD, the computing device configured to process the stream of captured image data to identify changes in positions of the fingers of the hand and changes in positions of the forearm for rendering in the virtual environment images of the fingers and the forearm.

A non-transitory computer readable medium containing program instructions for identifying positions of an arm of a user, the positions being used to render a virtual arm to be displayed in a head mounted display (HMD) when presenting a virtual environment in the HMD, wherein execution of the program instructions by one or more processors of a computer system causes the one or more processors to carry out a plurality of operations of:

• capturing images of fingers of a hand of the arm using a front-facing camera that is a part of a wearable device, the wearable device being attached to a wrist of the arm, the front-facing camera disposed on the wearable device to face the fingers of the hand;
• capturing additional images of a forearm associated with the arm using a rear-facing camera, the images and the additional images captured to produce a stream of captured image data during a session of presenting the virtual environment in the HMD;
• and
• sending the stream of captured image data to a computing device that is interfaced with the HMD, the computing device configured to process the stream of captured image data to identify changes in positions of the fingers of the hand and changes in positions of the forearm for rendering in the virtual environment images of the fingers and the forearm.