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Introduction to 3D Graphics by yurtgc548

VIEWS: 4 PAGES: 24

									              The Durham
       e-Science Research Institute


                           Nick Holliman
             Durham e-Science Research Institute
             & Department of Computer Science

The University of Durham              e-Science Research Institute
      Aims

      Enabling inter-disciplinary Computational Science.


      Three key themes - majority of research in the Institute:
              Visualisation.


              Modelling (reality).


              Novel GRID architectures and systems.




The University of Durham                   e-Science Research Institute
      e-Science Physical Resources
      New building, inhabitable from January 2004:
          -eleven staff offices.
          -common room.
          -open workspaces
           for research students.




      Inter-disciplinary research
      laboratory housing advanced        Access-GRID facility
      visualisation facilities and       for video conferencing.
      research GRID systems.

The University of Durham                 e-Science Research Institute
                    The Durham
            eScience Research Laboratory




The University of Durham      e-Science Research Institute
      Stereoscopic 3D display principle

                               3D displays create
          3D Display           viewing regions or
                                   “windows”
                               to separate the left
                                and right images.




The University of Durham      e-Science Research Institute
      Traditional Stereoscopic 3D Displays




          Passive Stereo                      Active Stereo
         BARCO Gemini                         LCD Shutters
     2.4 meter rear projection               Desktop display

                             Stereoscopic:
                       Each user wears 3D glasses.

           The glasses selectively admit the correct view for
                              each eye.

The University of Durham                   e-Science Research Institute
      New Auto-stereoscopic 3D Displays




     Laptop                   PDA         Desktop              Desktop
    Twin-view              Twin-view    Head tracking         Multi-view
   Sharp RD3D              Ocuity PDA    SeeReal C-i        Synthagram 202


                         Auto-Stereoscopic:
           User does is not required to wear anything at all.

        The display directs the correct images to the left/right
                                 eyes.


The University of Durham                       e-Science Research Institute
      Computer Science Research in 3D


            Psychology and                  Algorithms for
             Human Vision                    3D imaging.


                              3D Displays


                                             Software and
               Applications
                                             standards for
                proving.
                                              end users.



The University of Durham                    e-Science Research Institute
                       A Sample of
              Projects using the Laboratory




The University of Durham         e-Science Research Institute
                   SAURON Spectrograph
                     Data Visualisation




The University of Durham         e-Science Research Institute
      SAURON spectrograph data.




      “Deep SAURON spectral imaging of
      the diffuse Lyman halo LAB1 in SSA 22”

      Bower, Morris et al, Monthly Notices of the Royal Astronomical Society,
      June 2004, v.351, no.1, pp. 63-69(7)

The University of Durham                          e-Science Research Institute
      SAURON spectrograph data.




                           Iso-surface of volumetric data.

                           Using ParaView/vtk, freely available
                           visualization tools from Kitware.
                           Creates polygonal representations
                           of data sets.

The University of Durham           e-Science Research Institute
      SAURON spectrograph data.
                                                        Volumetric
                                                        presentation of the
                                                        SSA22 data set
                                                        using VolView.

                                                        Allows the viewer to
                                                        see into the data.




       Subsequently used VolView for images in:
       "The discovery of a galaxy-wide superwind from a young massive
       galaxy at redshift z=3" RJ Wilman, J Gerssen, RG Bower, SL
       Morris, R Bacon, PT de Zeeuw & RL Davies, Nature, 2005.
The University of Durham                       e-Science Research Institute
             Visualising Complex Data Sets
              in Computational Cosmology




The University of Durham        e-Science Research Institute
      Cosmic Cookery
                                     A Short Stereoscopic 3D movie

                                     International collaborative effort over
                                         four sites and three months.

                                         Research Goal
                                         Investigate practical issues using
                                         and creating stereoscopic
                                         visualizations of complex
                                         datasets.

                                         Critical Deadline
                                         Produce a six minute movie for
                                         exhibition this week at the Royal
                                         Society’s Summer exhibition.

       With Carlos Frenk and the Institute for Computational Cosmology
The University of Durham                        e-Science Research Institute
      Cosmic Cookery
                           Some of the lessons

                           Used numerous tools and standards:
                              -none were grid enabled.
                              -often needed data conversion
                              utilities to communicate.

                           The network is a major bottleneck for
                              datasets of just 65 Gbytes.

                           Was achievable, but not yet feasible
                               directly from the desktop.
                           Highlighted continuing need to
                               investigate service-based GRID
                               architectures.


The University of Durham            e-Science Research Institute
       Service Oriented GRID Architectures




The University of Durham     e-Science Research Institute
      Service-based Visualization




    Investigating distributing the visualization pipeline across the GRID using
    lightweight services to wrap our existing tools and standards.
    i.e. how can we make the GRID work for something interactive and
    persistent.
    (Stuart Charters, eScience, Durham)
The University of Durham                           e-Science Research Institute
                    Earth Science Projects
                     Using the Laboratory




The University of Durham            e-Science Research Institute
       Earth Sciences
    Laser
    scanning                                                                       3D point
                                                                                   data set




              Interpretation and analysis using the e-Science
                     Research Laboratory VR facilities.
   Durham Reactivation Research Group http://www.dur.ac.uk/react.res/RRG_web/current_research.htm
The University of Durham                                        e-Science Research Institute
      Earth Sciences




    Statistical distribution of Olivine Crystals in Kimberlite.
    Animations of CT scan data created using VolView in the
    Durham eScience Research Laboratory.
    Alex Mock, Dougal Jerram, Department of Earth Sciences.
The University of Durham                      e-Science Research Institute
                           Conclusions




The University of Durham             e-Science Research Institute
      Harvard IIC
                  Filling the “Gap”
       between Science and Computer Science

                  Scientific                    Computer Science
                 disciplines                      departments


        Increasingly, core problems in       Focused on finding elegant
        science require computational        solutions to basic computer
        solution                                     science challenges

        Typically hire/“home grow”           Often see specific, “applied”
        computationalists, but often lack       problems as outside their
        the expertise or funding to go                           interests
        beyond the immediate pressing
        need

       (Thanks to Alyssa Goodman, Director, Harvard IIC.)
The University of Durham                        e-Science Research Institute
      Harvard IIC

                               Continuum


                            “Computational Science”
                           Missing at Most Universities

   “Pure” Discipline                                              “Pure” Computer
       Science                                                        Science

     (e.g. Einstein)                                                (e.g. Turing)




    (Thanks to Alyssa Goodman, Director, Harvard IIC.)
The University of Durham                             e-Science Research Institute

								
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