tutorial

                    Sony Alborg, DK IMK FhG, DEOverviewI. Introduction to Virtual RealityII.Virtual PrototypingVirtual Reality forIII. Algorithms / Techniques / IssuesVirtual PrototypingDr. Gabriel ZachmannInstitute for Computer Science IIUniversity BonnRömerstr. 164, 53117 Bonnzach@cs.uni-bonn.dehttp://web.cs.uni-bonn.de/~zach/What is it?It is VR, when …1. Real-time rendering,Part I 2. Interaction in 3D in real-time,3. Simulation in real-time,Quick Introduction to Virtual Reality4. Intuitive input devices (> 2D),5. Stimulation of as many senses as possible,6. Immersion and/or presence.1. What is it?VR is not2. Devices• Cyberspace3. Software System Design• Any 3D computer graphics system with > 10 fps• VRMLArt + ComDevices Immersive DisplaysCategories: Head-mounted display (HMD):Output devices Relatively inexpensive, good immersionInput Small field-of-view, low resolutionOutput devices:Immersive displaysCave: Haptic & Force feedbackNon-invasive, pretty good immersion,Spatial audiohigh resolutionInput devices:Low contrast, expensive, Tracking devicesGloveVariants:Other input devicesWorkbench, Powerwall, Holobench, …Curved screen projections1                          Intersense Polhemus FastrakHaptic Feedback DevicesCharacteristicsThe following table shows "rules of thumb" for Needed to render:several properties of the displays: Contacts / ForcesSurface (haptic) textureGuide ...