A man with a mask of virtual reality catches a real ball. Disney Research presents an interesting experience of interaction between the virtual world and the real world. They have developed a system that allows a user immersed in a world of virtual reality (with a VR mask) to catch a real ball. Three different visualizations have been tested. Display of the ball in the virtual environment, the display of the trajectory and the display of "LZ". They explain that a psychomotor perspective, catching a ball is not an easy thing and asking to coordinate several skills. Perform this task in a virtual world is even more complicated because other factors come into play, such as latency, the frame rate and the accuracy of tracking.