Quake II Mods for Engineering Students

gleeklet writes "Has anyone else seen that there is a need for inexpensive 3D visualization software for presentations and classroom lectures? There is a Chemical Engineering package available but compared to video game software, the graphics are a bit lacking. My goal was to create a chemical plant with the process control algorithms coded into the Quake II source. As a short demo I spent several hours creating a unit cell demo Quake II level to demonstrate the use of open source video game technology, which I found was well received by undergrads. Has anyone used video game technology as an education tool for science or engineering?"