Abstract: A 3D glasses device incorporating real time tracking and a system for implementing the 3D glasses device for an immersive virtual reality experience includes 3D glasses that comprise: a frame, a pair of lens, and a real-time tracking unit, which enables the position and orientation to be observed by optical tracking systems featuring optical transmitters. In one exemplary implementation the 3D glasses device communicates with a client system during a session of digital media content rendering. The real-time tracking unit of the 3D glasses device has optical sensors activated when struck by light from an optical transmitter, communicates its position and orientation to the client system, which renders media content based in part on the tracking data, and shows the content on head-mounted display systems that are part of the device in order to produce an immersive virtual reality experience.