Abstract
Current tracking systems now enable real walking in a virtual scene with a Head Mounted Display (HMD). However, the play area usually remains limited to a few square meters because of tracking limits and the lack of free space in game rooms. This paper describes our demonstration showing how we can use an RGB-D sensor to increase the real game surface by dynamically acquiring a map of the actual game room and integrating it into the virtual environment. Our system was designed to be integrable to any virtual environment and aims to enable free walking with a HMD by showing the position of the real obstacles to the user.