Mixing Virtual Reality and 2D Visualization – Using Virtual Environments as Visual 3D Information Systems for Discussion of Data from Geo and Environmental Sciences Dr. Björn Zehner, Department of Environmental Informatics [email protected], [email protected]Given at the International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010), Angers, France, 21st May 2010
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Mixing Virtual Reality and 2D Visualization – Using Virtual Environments as Visual 3D Information Systems for Discussion of Data from Geo and Environmental Sciences Dr. Björn Zehner, Department of Environmental Informatics [email protected], [email protected]
Given at the International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010),Angers, France, 21st May 2010
Page 2 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
Successful application of immersive visualization in many areas
This technology has been used for a long time now in:AutomotiveArchitectureMechanical Engineering
Since 1999 it is also often used by Oil & Gas companiesto discuss their complicated reservoir data sets.
It is rarely used in environmental sciences and geosciencesoutside these industries and the question is why.
Page 3 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
The Bitterfeld site in East-Germany isan example for a very complicateddata set from environmental geoscience.
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What do we do with these data?
Source: Google maps (bottom left) and Zehner, 2002/1998.
Page 5 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
What do we do with these data?
Source: Google maps (bottom left) and Zehner, 2002/1998.
Page 6 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
GIS Systems
Page 7 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
Related/former work
Using additional Gadgets, such as PDFs
Using 2D widgets (WIMP interfaces), projected
on planes in 3D space - an example is the
InsideReality software from Schlumberger.
Using Video Wall Controllers (explained later)
Page 8 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
The target:
Providing an example system as proof of concepthow a 2D/3D visual information system could looklike in terms of interaction and visualization.
In terms of hardware
In terms of software
Page 9 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
Display design considerations?
UFZ’s display system is mainly used for presentations and discussions:Large screenHigh resolution for showing much detailVR capability (tracking, stereo)Option to show 2D information, e.g. areal imagesOption to mix 2D and 3D
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Mode 1: Virtual Reality (cluster based)
Page 11 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
Mode 1: Virtual Reality (cluster based)
Page 12 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
Mode 2: Using a video wall controller
Page 13 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
Mode 2: Using a video wall controller
Page 14 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
Mode 3: Cluster and video wall controller
Page 15 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
Mode 3: Cluster and video wall controller
Page 16 Björn Zehner - International Conference on Computer Graphics Theory and Applications 2010 (GRAPP2010)
The OpenSG scenegraph
Open source (www.opensg.org)Implements distributed rendering via a clusterSeparates the structure of the scenegraphand the content (e.g. materials, geometry)Nodes of the scenegraph are named
Names are used for this workto link to further information