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Emergence: Imbalance, Order, Growth is an original art piece by CACR research scientist Santiago Lombeyda that will appear at this year’s SIGGRAPH Art Gallery. The artwork shows continuous spiral lines jumping paint edges, depicted using series of algorithmically pre-rendered 3d spheres. At SIGGRAPH2006, the International Conference on Computer Graphics and Interactive Techniques, the year’s most advanced achievements in computer graphics and interactive techniques will be exhibited.
For further information, including an abstract and technical information, please read Santiago Lombeyda’s page about the piece.
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Announcing shakemovie.caltech.edu – Caltech’s near real-time simulation of Southern California Seismic Events Portal.
ShakeMovie is a new portal, serving movies made from simulations of earthquakes of magnitude 3.5 and above happening in the Southern California Region, only 45 minutes after the actual event.
This portal has been designed to present the public with near real time visualizations of recent significant seismic events in the Southern California Region. These movies are the results of simulations carried out on a large computer cluster. When an earthquake occurs, seismic waves are generated which propagate away from the fault rupture.
In the example shown above – a magnitude 5.0 event from Feb 22, 2003 centered three miles north of Big Bear City, CA (click for ~5MB mpeg movie file) – we see the up-and-down velocity of the Earth’s surface. Strong blue waves indicate the surface is moving rapidly downward. Strong red waves indicate rapid upward motion. When the waves pass through soft soils (sediments) they slow down and amplify. Waves speed up when they pass through hard rock. The color of the waves oscillates between red and blue indicating alternating up and down motion.
Shakemovie was created by Caltech’s Seismological Laboratory, Instrumental Software Technologies, Inc. and Caltech’s Center for Advanced Computing Research. The project is sponsored by the United States Geological Survey, the National Science Foundation, Dell Inc, and the Southern California Seismic Network.
ShakeMovie is found at: http://shakemovie.caltech.edu.
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click for mpg movie
[36MB mpeg]
Snapshot from a spectral-element simulation of the Great 2004 Sumatra- Andaman earthquake. Shown is the vertical component of velocity 15.8 minutes after the initiation of the rupture. Red colors denote upward motion and blue colors denote downward motion. Stations in the Global Seismographic Network are denoted by the yellow triangles. The yellow seismogram shows the actual-size vertical component of displacement at GSN station PALK.
Dramatic new data from the December 26, 2004, Sumatran-Andaman earthquake that generated deadly tsunamis show the event created the longest fault rupture and the longest duration of faulting ever observed, according to three reports by an international group of seismologists published Thursday in the journal ” Science .”
The visualization was prepared by Santiago Lombeyda ( CACR ), Vala Hjorleifsdottir (Caltech Seismological Laboratory), and Richard Aster (New Mexico Tech). The simulation was performed on the Caltech Division of Geological & Planetary Sciences Dell cluster.
Further information about the simulation can be found on Santiago Lombeyda’s website , including links to a CNN news item and a Caltech press release .
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An art piece that will appear at this years Siggraph’s Art Gallery was inspired from visualization of CACR science.
Horizonte , an original piece by CACR research scientist Santiago Lombeyda , was created from the volume rendering of a time-step of a simulation of a shockwave propagating across a solid wedge (data courtesy of Caltech’s ASCI/ASAP Center ). The data is stored as a 12bit volume in a grid size of 2000×400x400 voxels. The angle of infraction creates internal pressure waves, which concentrate around the objects surface folds. Intuitively this image confronts the user with a receding surface with clear turbulence to it. This surface seems to break or fold with a second surface on a brighter white path, as if it was a horizon line. This in fact is the main shockwave moving across the object. The image thus offers two stark contrasts : o ne is the changing visual depth of the image, while the second one is the conflicting duality between a perception as a peaceful panorama versus the less obvious pictorial of a violent shock. These contrasts have the ability of moving a viewer back and forth from serene to unbalanced or weary.
At SIGGRAPH2004 , t he 31st International Conference on Computer Graphics and Interactive Techniques , the year’s most advanced achievements in computer graphics and interactive techniques will be exhibited . SIGGRAPH2004 brings computer graphics and interactive professionals from around the world together for a 5-day conference and 3-day exhibition in Los Angeles, California.
The Synaesthesia Art Gallery at SIGGRAPH2004 will feature visionary work in every field of digital art: 2D, 3D, interactive techniques, installations, virtual reality, multimedia, telecommunications, web art, and animation.
For further information about the piece, please read Santiago Lombeyda’s page at http://www.cacr.caltech.edu/~slombey/art/
