OpenSim: an educator's perspective
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We were pleased to welcome Dr Peter Miller (University of Liverpool) to the Centre to conduct a seminar relating to virtual worlds and the open source platform OpenSim. This talk looked at the ...

We were pleased to welcome Dr Peter Miller (University of Liverpool) to the Centre to conduct a seminar relating to virtual worlds and the open source platform OpenSim. This talk looked at the benefits and current limitations of the platform. It outlined ways in which OpenSim can be deployed and showed some of the education-oriented and more generic content already available or under development. Finally, the potential role of the Hypergrid, the system for linking OpenSim regions, was considered in terms of establishing educational communities and disseminating good practice.

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OpenSim: an educator's perspective Presentation Transcript

  • 1. OpenSim: an educator’s perspective
    Peter Miller
    University of Liverpool
    BioZone
    NWG
    Graham Mills
  • 2. OpenSim is...
    Not a virtual world but a platform supporting
    standalone regions (“sims”)
    multi-region grids
    optionally connected by Hypergrid (HG)
    Both familiar (Second Life®-like) & novel, e.g. extensible
    Open source: more affordable, more control
  • 3. But...
    Less content, fewer sims and users than SL
    Issues with
    Voice
    Physics
    Lag
    Client and server stability
    IPR
  • 4. OpenSim(ulator): a selective history
    2007
    SL Viewer open-sourced
    OpenSim project starts; OSGrid founded
    2008
    New World Grid & ReactionGrid established
    First avatar “jump” between OSGrid and SL
    2009
    Hypergrid, Diva Distro
    2010
    End of SL education discount; interoperability work stops
    Aurora fork of OpenSim
    2011
    Kitely (OpenSim-on-demand)
    Mesh and interactive web pages
    Overte Foundation established
  • 5. How it works
    Database
    Server
    http://www.multiurl.com/l/5O8
    Region/sim
    Client
    Client/viewer, e.g. Imprudence (Kokua)
    Server running OpenSim (OS) simulator + database
  • 6. Regions can be organised as grids



    i6
    Dec 2010
    Upper
    VWER Grid
    Kitely
    Middle
    73 listed grids (34 shown, 56 HG-enabled)
    14K regions (SL: 31K)
    21K users/month* (SL: 1M Oct’10)
    *inc non-HG grids
    Hypergrid Business: March 2011
    Edu
    Hypergrid: Lower
    OS 0.6.9
    OS 0.7.1
    OS 0.7.0.2
    Map: Pam Broviak, GovGrid
    http://www.multiurl.com/l/5O5
  • 7. Clients include...
    Based on SL version 1.23
    Imprudence
    Astra* (OS import/export)
    [Stored Inventory]
    SL Viewer 2 (web, mesh)
    Kirsten’s
    Web (Unity3D on-the-fly)
    BuiltBuyMe*
    NB IP issues, esp moving content from SL
    BuiltBuyMe web viewer
    * Not on SL approved TPV list, [ ] no personal experience
    http://www.multiurl.com/l/5Ob
  • 8. Low-end clients
    Radegast (not Mac)
    3D object viewer, accessibility
    Mobile
    No scene graphics
    Future: streaming, Unity3D, etc ?
    MobileGridClient*(Android)
    OpenSim Mobile(Windows J2ME)
    Pocket Metaverse*(iPhone, iPad)
    * commercial
  • 9. OpenSim comes in many flavours
    Platforms
    Self-hosted (Diva Distro; HD or USB)
    Hosted on public or private grid
    Self-hosted, grid-attached, e.g.OSGrid
    Hosting services include
    SimHost, Dreamland Metaverse, etc
    Kitely (on-demand/cloud-based, Fb-registration)
    • Educational grids/federations include
    Immersive Education Initiative
    NZVWgrid
    ScienceSim
    EnerHax
    OSgrid
    http://www.multiurl.com/l/5RJ
  • 10. The Hypergrid:Where do you want to go today?
    HyperGate:
    walk through to access other regions/grids
    Core1, ReactionGrid
    secondlife://71.6.165.170:9000:Core1/
    NB
    Inventory & avatar appearance maintained
  • 11. How to Hypergrid
    Yes
    Yes
    Sims HG-enabled?
    Sim on hgurl.com?
    Chat search term & touch
    Success?
    No
    No
    Try other services
    No
    Find address, e.g.Hyperica
    Yes
    secondlife://
    Yes
    Within 4096 regions?
    Chat address
    Click link in chat history
    No
    No
    Sim closed?
    tp issues?
    Success?
    Find way-station
    Also: Map search if within 4096 regions Direct registration, e.g. if different HG versions
    http://www.multiurl.com/l/5RH
  • 12. Exemplar builds: History
    Mount Grace Priory
    NWG (shared core; suits 3-4 avatars)
    mainland.newworldgrid.com:60400:Mount%20Grace%20SE
    Christi Maeterlincket al.
  • 13. 1939 New York World’s Fair
    Trylon and Perisphere, ReactionGrid
    216.75.32.156:9030:TrylonandPerisphere/
    Ruud Lathrop
    Joey Chernov
  • 14. Science on a mountain top
    Aime SocratesCendres MagicLollyiFrog
    Jeff Kelley
    Pic du Midi de Bigorre observatory
    Lab, NWG
    94.23.236.55:26000:Lab/
  • 15. Mathematics
    E8 Polytope
    Wizzy, ReactionGrid
    71.6.165.147:9000:Wizzy/
    Wizard Gynoid
  • 16. Population Biology
    ScienceSim
    http://fernseed.usu.edu/
    Aaron Duffy
  • 17. Landscape
    Green and Wild
    jokaydiaGRID
    66.240.233.81:9000:Green%20and%20Wild
    MarmottinaTaurog
  • 18. Cityscape
    Nick Lassard
    Image CC-BY John”Pathfinder” Lester
    Romenna
    PMgrid
  • 19. Conclude: Prims are abundant... so use them!
    Mycobacterium tuberculosisGene Regulatory Network
    BioZone, NWG
  • 20. But: Lag can be an issue
    Interactivity via marker overlay prims rather than scripting original prims
  • 21. Intel stress test: Scaling is possible
    Each map dot is an avatar
    (most are bots)
    655 avatars on ScienceSimcloud-based megaregion
    Distributed services (Intel Distributed Scene Graph)
  • 22. Personal small group use
    4 GB hosted quad-core standalone, 10 Mbit/s bandwidth
    Groups of 20, 10 and 1; large textures, heavily scripted
    Configured to 4 regions
    Outcome
    Class functional, no server crashes
    A few avatars slow to rez but still operable
    Lag varied; due to scripts or time of day (local bandwidth)
    Future: optimise, e.g. opensim.ini to reduce rate of updating
    NWG
    Events on dedicated cores with 20-25 avatars, light scripting
    Shared core sim supported 3 students building, light scripting
    Next version will support >100 avatars per sim
    Zephyr, NWG
    Lolly iFroget al.
  • 23. Bonus: Native megaprims
    Also
    free texture uploads
    large linksetsscript delays switchable
    Proteins
    BioZone NWG
  • 24. Hooray: Region modules in C#
    Multi-body gravity simulation
    New World Innovation, NWG
    Olish Newman
  • 25. And: OSSL writes on prims and notes
    PubMed search
    BioZone, NWG
  • 26. Version 0.7.1: Mesh format molecules
    Kirsten’s viewer(supports mesh)
    COLLADA format
    Free content: TurboSquid, etc
    Imprudence viewer(no mesh support)
  • 27. Interactive Web Pages (of course)
    Shared media on prims in OpenSim 0.7.1
    http://join.me/ for screen sharing
    Also provides voice option via Scribblar, etc
  • 28. Hey, where can we get content?
    Emporium
    Scooter, jokaydiaGRID
    IP issues closed commercial grids, e.g.Inworldz
    Many inworld freebie stores
    Freebie shops
    Crackou Island, NWG
    NewVCE
    NWG
    Austin Tate
  • 29. Free web content for import
    OSavatars
    Ina Centaur
    http://www.multiurl.com/l/5RE
    Fleep Tuque
    IAR imports to Inventory e.g. Diva Distro IAR
    Search via http://metaverseink.com/
    http://bit.ly/hyperfind
    KatijackStudio
  • 30. OARs
    Element 4
    Keystone Bouchard
    Commercial
    Sim + terrain
    Backup/restore
    http://www.multiurl.com/l/5RF
    The Far Away, AM Radio
    via OpenSim Creations (some NSFW)
  • 31. Server access (remote desktop application)
    save oar myregion
    The console: load/save/merge inventory and sim content; register avatars
  • 32. Avatar management
    Via console
    Via grid if hosted
    Via Wifi on Diva Distro
    http://opensimulator.org/wiki/Wifi_Module
  • 33. OpenSim: ready for the big time?
    In my opinion, yes but would be helped by...
    Guidance on platform choice/transition
    Simplified hosting plus info on scaling/stress testing
    Better sim/class management tools
    Mobile client with inworld graphics
    Scene and object rendering options for mobile clients
    Edu/subject-specific OARs, IARs, HG directory/search
    Sharing/experiences
    VWER, JISCMAIL VW listserv...