Course 25:Computer Graphics for Large-Scale

Immersive Theaters

Storytelling Through Immersive Data Visualization

Carter EmmartDirector of Astrovisualization

carter@amnh.org

American Museum of Natural HistoryRose Center for Earth and Space

Show production at the new Hayden Planetarium

Show production at the new Hayden Planetarium

Based on data:Need for large computational resources

Rose Center for Earth and SpaceAmerican Museum of Natural History

Same tree, new place

Old Hayden: Shows based on artwork and illustration

1935-1996

New Hayden: Shows based on data visualization

2000-on

Our second space show:

Search for Life: Are We Alone?� Water = Life, so far as we know� Life found in extreme conditions� Water beyond Earth: Mars and Europa?� Planets beyond the Solar System� Generic process makes stars and planets

� Galaxies may have 10^12 planets� ~10^11 galaxies in visible universe

Data to visualize

� Observation: astronomy� Simulation: astrophysics

Data visualization is information cartography

Data to visualize

� Solar System: imagery, topography, atmospheres, positions

Data to visualize

� Extrasolar planets: growing numbers observed and added to our atlas of the local solar neighborhood

Data to visualize

� Generic stellar and planetary formation:six major astrophysical simulations � large range of spatial and temporal scales

Data to visualize

� Surrounding universe: red shift survey of galaxies

Computational resources:� Partnerships with our National Science Foundation

supercomputing alliance:� National Center for Supercomputing Applications; NCSA� San Diego Supercomputer Center; SDSC

� AMNH: two research grade SGI Onyx visualsupercomputers and internet-2 connectivity

� Major support from NASA

Earth: the water planet

Deep sea vents: life found in environments thought inhospitable

�Production starts with a pencil

Storyboarding dome masters

drawing a series of fish eye views

Extrasolar planets: a survey

Remote collaboration on dome with NCSA�s CAVE

�we start by waving �hello�, 2000km away

Donna Cox, Bob Patterson and Stuart Levy

Production camera paths with Virtual Director

Generic process of stellar and planetary birth

� A story told by nesting simulations that illustrate the concept

� The dome places us inside the process to experience it first hand

Astrophysics = understanding process through numerical

simulation

Requirements:� Current research (international)� Large computational resources� Research grade visualization equipment� Collaboration

Animatic

Supernovae and differential rotation

10 Myr time lapse, 100 Kpc scale

Supernovae shocks into the interstellar medium

3 Myr time lapse, 1 Kpc scale

Gravitational collapse and turbulence of the ISM

1 Myr time lapse, 3 pc scaleMacLow sim on NCSA�s SGI Origin cluster

SDSC�s volumetric time step study

Density thresholding and color mapping

Photo ionization of ISM gas

Several years time lapse, a few pc scale

Growth study of ionization volume

Abel�s first ever 3D ionization sim

Ionization lighting test

Optical dust occlusion

Two species ionization

Red = Nitrogen, Green = OxygenSimilar to Orion nebula

Two species ionization growth

(See movie � starts from black)

NCSA / AMNH collaborative camera path(dome view)

Real time point cloud density treatment

Final product: The Hayden Nebula

SDSC volume render, NCSA / AMNHflight path, AMNH stellar dynamics

Encounter with proto-Sun

Original show debut disk

Hawley simulation done at SDSC, static jets

Replacement disk simulation and jets

Proto Solar System accretion disk

Kokubo sim of various stages of process

Mars MOLA topography as proto Earth proxy

Early Moon and debris ring

Earth history in a series of dissolves

Scotese continental reconstructions

Data from more than two dozen scientists� Tom Abel, Pennsylvania State University� Jean-Charles Cuillandre, Canada-France-Hawaii Telescope� Adam Frank and Tom Gardiner, Truth-N-Beauty LLC, University of Rochester� Zsolt Frei and James E. Gunn, Princeton University� John Gleason, Celestial Images� John F. Hawley, University of Virginia, Charlottesville� Fabian Heitsch, University of Colorado, Boulder� Jarrod Hurley, American Museum of Natural History� Eiichiro Kokubo, National Astronomical Observatory of Japan� Pakshing Li, National Center for Supercomputing Applications� David Malin, Anglo Australian Observatory� Mordecai-Mark Mac Low, American Museum of Natural History� Christopher McKay and Jeffrey Moore, NASA-Ames Research Center� Michael Norman, University of California, San Diego� Lucian Plesea and David Seal, NASA/JPL/Caltech� Paul Schenk, Lunar and Planetary Institute� C.R. Scotese, PALEOMAP Project, University of Texas, Arlington� Hanumant Singh and Dana R. Yoerger, Woods Hole Oceanographic Institution� Carol Stoker, Eric Zbinden and Joel Hagen, NASA-Ames Research Center� R. Brent Tully, University of Hawaii