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Fostering Networked Collaboration in Virtual Environments using Open Source

Fostering Networked Collaboration in Virtual Environments using Open Source. John Kelso*, Lance Arsenault*, and Ronald Kriz** University Visualization and Animation Group **Department of Computer Science and **Department of Engineering Science and Mechanics

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Fostering Networked Collaboration in Virtual Environments using Open Source

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  1. Fostering Networked Collaboration in Virtual Environments using Open Source John Kelso*, Lance Arsenault*, and Ronald Kriz** University Visualization and Animation Group **Department of Computer Science and **Department of Engineering Science and Mechanics Virginia Polytechnic Institute and State University Blacksburg, Virginia November 6, 2002 AOL / CIT Finding Common Research Ground Day http://www.jwave.vt.edu/~rkriz/Presentations/aol-cit/

  2. Thesis Statement: • Immersive Virtual Reality (IVR), e.g. CAVEs, IWBs, and HMDs, provides users insight by viewing their data as 3D objects. • Insight will be enhanced by creation of tools that allow multiple users (“avatars”) to be networked together where they can manipulate 3D objects in a common “shared” IVR. • Making same networked tools available on desktop computers will allow many new users access to IVR technology. • Collaboration will be enhanced, if these collaborative desktop tools become as ubiquitous as the Web browser. • Open-source licensing, e.g. GPL/MPL, fosters distribution, collaboration, innovation and domain specific customizations: • managing large construction site projects (e-commerce), • analysis and interpretation of HPC nanostructures (e-research), • 2007 Jamestown project (e-education “distance learning”)

  3. Research in a NutshellWe propose to implement a suite of open-source collaborative tools, and applications based on those tools, which will: • allow multiple users to share the same IVRs, that works across a wide range of IVR systems, from desktop computers to Head-Mounted Displays (HMD) to fully immersive systems such as CAVEs. • create awareness tools, that allow users to glean information about other users (“avatars”) or 3D objects in a common IVR -- some tools may be domain specific. • create interaction tools, that allow users to modify IVR and its content • create collaborative navigational tools, that allow users to share views, be tethered to other users, jump next to another user, etc. • Use HCI methods to create tools that are intuitive and useful • Explore the utility of nontraditional IVR data, such as sound, voice recognition, and real-time video

  4. Research in a Nutshell (continued) • create these tools using open-source packages such as DIVERSE (www.diverse.vt.edu) a GPL-API for the creation of Device Independent Virtual Environments: Reconfigurable, Scalable, and Extensible

  5. Research Details DIVERSE used in the CAVE at Virginia Tech (VT) and the RAVE at the National Institute for Standards and Technology (NIST) • IVR systems used for insight in scientific research • Examples of physics based simulations and IVRs at: • VT’s University Visualization and Animation Group (UVAG) • NIST: Scientific Applications and Visualization Group (SAVG) VT’s CAVE: UVAG fourth-order stiffness tensor NIST’s RAVE: SAVG Bose-Einstein Condensate

  6. Research Details D_Atomview: a DIVERSE application developed at VT that visually analyzes and interprets nanostructures predicted by High Performance Computer (HPC) models. Used both in the CAVE and a laptop computer using a CAVE simulator. D_Atomview:http://www.sv.vt.edu/future/cave/software/D_atomview/D_atomview.html D_Collab_Tools:http://anray2.campus.vt.edu:1800/user/CollabWebPage/ • Collaborative IVRs that scale from the desktop to the CAVE Collaborative CAVE-to-CAVE-to-desktop demonstration October 2002. Desktop CAVE-simulator embedded in a nanostructure -- avatars not shown.

  7. Research Details • Current DIVERSE API and applications run only on SGI-Irix and Linux operating systems (OS) • Future development will include MS-Windows, Mac-OSX, and SUN-Solaris • Dynamic Shared Objects (DSOs) facilitate interactive IVR system configuration and collaboration.

  8. Benefit to AOL • increased use of networking resources: • in terms number and length of connections, • in some cases need for increased data transfer rates to support modalities such as voice and video. • enhance collaborative design environment that works independent of discipline content. • As new I/O desktop devices emerge the DIVERSE API can be used to include these devices as collaborative tools.

  9. Contact Information Name: John Kelso, Lance Arsenault, and Ron Kriz Affiliation: Virginia Tech’s University Visualization and Animation Group Phone: 540- 231 - 2054 / 2641 / 2062 Email: kelso@vt.edu / lanceman@vt.edu / rkriz@vt.edu

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