This demo paper introduces a flexible 3D visualization framework that can visualize an abstract representation of real-world events such as human movement and human interaction in an immersive way by rendering animated avatars. In the presented demo, events are detected and sent to the visualization by a multi-camera room occupancy monitoring system that uses video analysis to track people in a room. Extracting high-level information about a scene and visualizing the relevant events in a 3D virtual environment can enable future immersive communication systems.