サイエンティフィック・システム研究会 HPCミーティング2001

2001/11/02

Fujitsu High Performance Computing Meeting
November 2, 2001

Rose Center for Earth and Space
American Museum of Natural History
The Digital Galaxy Project
Carter Emmart
Director of Astronomical Visualization
carter@amnh.org

Rose Center Build:• Modernize the Hayden Planetarium built in 1935
• Complete the north side of the American Museum of
Natural History• Add new science department of astrophysics• Add new education production department• Two immersive theaters: Main dome and Big Bang
• $210 million project• Modernize the CONCEPT of the “planetariumplanetarium””

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サイエンティフィック・システム研究会 HPCミーティング2001

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New Concept of the Planetarium• Precursors: Omnimax
Omnimax,, Digistar
Digistar,, Sky Vision, Reality Room• Use dome as an immersive theater to experience virtualpresence within a model of the universe• Create both movie playback capability and real time
operation function across entire dome
• Immersive depth illusion used to present the scale
relationships of astronomy, and the behavioral aspectsof the universe as simulated with astrophysics• Started by modeling our Milky Way galaxy in 3D withpublished data of observed objects

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サイエンティフィック・システム研究会 HPCミーティング2001

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The Digital Galaxy Project• Model our home Milky Way galaxy• NASA funded project 1997-2000• Plot positions for observed objects with publisheddistance• Create statistical representation beyond that which iscurrently observed• Provide basis for meeting our “ new concept”
concept” objectives• Provide basis for premier show production capability

Digital Milky Way Model – Observed
Data• Stars: 25k Hipparcos catalog• Exoplanetary systems: 59 several on-line sources• Open Clusters: 419 from Lund Observatory catalog• Globular Clusters: 145 from Harris catalog• Pulsars: 706 from Taylor and Lyne
• Dark Nebulae: 174 from Lynds catalog• H II Regions: 261 from Georgelin & Georgelin
Georgelin,, Blitz,Fich, Stark, and Gillespie
Fich,• Planetary Nebulae: 778 from Strasbourge
Strasbourge-ESO-ESO catalog• Local Group of Galaxies: 34 from Brent Tully9サイエンティフィック・システム研究会 HPCミーティング2001

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Passport to the Universe• Premier dome show in new Hayden Space Theater• Migration from “Sky Show”
Show” to “ Space Show”
Show”• Objective: Experience your “ Cosmic Address”
Address”• Immersive fly through a range of scales from home planet toobservable extent of our universe• Techniques for rendering nebulae and flight beyond the Milky Way
galaxy required partnering with:• San Diego Supercomputer Center• National Center for Supercomputing Applications• Astronomers: C. Robert O’O’Dell, Brent Tully and J. Ostriker

Supercomputing Collaborators• Continuing on after our first show
• National Center for Supercomputing Applications:
Donna Cox, Robert Patterson, Stuart Levy
• San Diego Supercomputer Center:
Dave Nadeau and Jon Genetti

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Orion model: Hubble Space Telescope
image with dark bay removed

Orion model: HST image mapped on terrain
model derived by O ’Dell and Wen

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Orion model: terrain extrapolation, dark bay
over hang, stars, shocks and proplyds

Orion model: final volumetric render bySan Diego Supercomputer Center12

サイエンティフィック・システム研究会 HPCミーティング2001

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Computer Hardware• Two SGI Onyx2 Infinite Reality 2 computers:• For Dome: 7 graphics pipes, 28 processors, 16GB ram,•••••

90GB internal drives, 2TB external storage on
Ciprico-7000’’s (16 min. show approx 1TB)
Ciprico-7000
For Production testing:3 graphics pipes, 12 processors, 6GB ram,
45GB internal drives, 550GB external Cipricoraid arrays for HD video editing, and 270GB fordevelopment work
Both conduct RT applications, movies from disk arrays, rendering,
and astrophysics simulations
Three SGI Octanes
Ten SGI O2’O2 ’s
New DDR NT system for show playback

Real Time Software• Virtual Director and Partiview, NCSA
• Viz (formerly Everest), Peak
• C-Galaxy, Aechelon Technology Inc.
• Silicon Conductor, Trimension Inc.
• Performer, SGI• Starry Night, Space.com

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Production Software• Maya, Alias/Wavefront – our glue between RT
and final render• Photorealistic Renderman, Pixar• MPIRE volumetric renderer, SDSC
• SPOT star renderer, AMNH
• Composer, Alias/Wavefront
Alias/Wavefront• Fishcaster and dome translation ware, AMNH

Globular cluster simulation calculated at the University of Tokyoon Grape supercomputer and displayed with interactive controlo n t h e R o s e C e n t e r ’s p l a n e t a r i u m d o m e

B . A b b o t t , S . M c M i l l a n , C . E m m a r t, M. S h a r a , P . H u t , S . P . Z w a r t

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Control console for interactive manipulation of immersive fulldome graphics

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