In the VR lab practical work can be carried out at an immersive, interactive 3D powerwall. There is a 3D wall with a 3D tracking system and two sensors. These are operated from a Graphic PC and two terminal computers (at present LINUX). Interactions and behavior in virtual worlds can be developed with the aid of the VR program Lightning from Fraunhofer IAO. This system is programmed with a script language and can read and play all common 3D data.