hpcc review part i: immersadesk part ii: vrml. immersive collaborative virtual environment a next...
TRANSCRIPT
Immersive Collaborative Virtual Environment
A Next Generation Internet (NGI) Testbed
Meetings attended:
• Supercomputing ‘99• AMS 2000• PMEL Open House
Several immersiveworlds created ...
FOCI on the Immersadesk
Fisheries-Oceanography: Sitka, AK
Al HermannSCRUM
topography - bluesalinity isosufacecurrents - whitetracers - red
Immersion works best
“Scientific visualization, exploiting the brain’s natural pattern recognition ability, is the best means available for making sense of large, complex scientific datasets.”
Animate
Hydrothermal Vents demo
Cave5d is Vis5d for the Cave/Immersadesk
Bill Lavelle’s model output of a plume event
Geophysical Fluid Dynamics Lab
GFDL - predictive model forhurricane Floyd
September 9-17th, 1999
135 mph winds
Construction of Complex 3-D Worlds
• Invited to:• NOAATech2000
• outstanding achievment award
• SuperComputing ‘99
• Canadian Statistical Society Meeting
• Other presentations:• AMS 1999 - Dallas
• GOIN 1999 - Honolulu
• AMS 2000 - Long Beach
Using VRML - Leveraging from 1998
Building a single, complex VRML world in FY98 gave us coding experience.
Creating Java/VTK tools for the creation of VRML objects allowed us to quickly make virtual reality demonstrations for several of the NOAA projects
A First Lesson
High frequency spikes in the bathymetry data are obvious in the 3D plot (right) and are obscured in the 2D plot above.
Calculations of bathymetry gradients to identify regions of internal tide generation would be impacted by these spikes in the bathymetry data.
Bathymetry in Astoria Canyon offshore from the Columbia River outflow in Washington State, in 2D and 3D.
Data courtesy of Robert Kamphaus, NOAA Vents Program
Building VRML Worlds - Java Tools
VTK is an open source, freely available software system for 3D computer graphics, imageprocessing, and visualization.
Several Java tools using were designedto build the VRML worlds using VTK’sJava bindings:
Worlds we created using these tools include ...
VRML: TAO/GCCP
Data from the TAO buoy array and ship-board CO2 measurements are visualized with a VRML-animator developed at PMEL
Animate
VRML:FOCI
A Fisheries-Oceanography virtual world was made from data fromAl Hermann’s SCRUM model output
Click for VRMLdemo
Global data sets
Several globel gridded data setswere made into VRML visualizations:
• ETOPO30• SST• Climate data
VRML demo
Stereographic Virtual Reality
Courtesy of Al Hermann, NOAA/PMEL FOCI Project, under HPCC supported VRML project.
3D, interactive virtual reality visualizations are not difficult for a scientist to create or to view, from the web or from the desktop, and the effect can be enhanced dramatically by including the capability of stereographic viewing.
With a PC and a 99-cent pair of red/green sci-fi glasses, the spheres and vectors will pop out of the page in stereo, revealing the true 3D location of the fish, the steep slopes of the bathymetry, and the vertical motions near the submarine canyon.
The images can be rotated, animated and zoomed.
Fish larvae and velocity vectors in a submarine canyon, from a circulation model of Pribolof Canyon in the Bering Sea. Use red/green glasses to see images on the right in stereo.
Courtesy of Al Hermann, NOAA/PMEL FOCI Project, under HPCC supported VRML project.
Stereo
Stereo