1. DAFFIE and the Wall Erik Brisson ebrisson@bu.edu IS&T Scientific Visualization Tutorial - Spring 2010

2. The BU DVD Wall 24 projectors 24 Linux machines Passive stereo One “head node” Localized sound Wireless navigation IS&T Scientific Visualization Tutorial - Spring 2010

3. What's in a virtual world? IS&T Scientific Visualization Tutorial - Spring 2010

4. What's in a virtual world? An environment Representations of physical objects –Visual models –Auditory elements Interactions with objects Representations of people - avatars Communication –Gesturing –Telephony –Video IS&T Scientific Visualization Tutorial - Spring 2010

5. DAFFIE An environment Distributed Interactive Visually and aurally rich Input (models, images and sounds) from variety of available tools Simple import method Script driven Accessible to non-expert users Extensible by programmers IS&T Scientific Visualization Tutorial - Spring 2010

6. DAFFIE event system Communication between agents IS&T Scientific Visualization Tutorial - Spring 2010

7. Software for the Wall Chromium – distributed OpenGL library DAFFIE Movie player IS&T Scientific Visualization Tutorial - Spring 2010

8. Go Visualize ! Learn specific applicable tools Establish workflow Use us for help Visualization with SCV – Dec 2008

9. Example workflow – molecular dynamics Visualization with SCV – Dec 2008 Simulation creates data files Molecule x,y,z + type  colored spheres (C program) Electron density as volume data  isosurfaces (IDL) .obj files Rendered in Maya

10. Example workflow – pressure on turbine Visualization with SCV – Dec 2008 Simulation run on supercomputer Produced many Plot3d files C code transforms data to.obj files Rendered in Maya Processed using Imagemagick for DVD Wall movies

11. Example workflow – showing entropy Visualization with SCV – Dec 2008 Isosurfaces in IDL Convert output into.obj Render in Maya, with transparency View in 3D on Wall

12. Example workflow – stretched water Visualization with SCV – Dec 2008 Given positions of atoms in water How to show “holes”? Construct volume data of distance Use volume visualization

13. Example workflow – CISM Visualization with SCV – Dec 2008 Researchers used OpenDX SCV staff modified OpenDX networks Produced wall movies and demos

14. Example workflow – Corporate Connections Visualization with SCV – Dec 2008 Researchers provided data SCV staff wrote custom viewing code

15. Go Visualize ! Learn specific applicable tools Establish workflow Use us for help Visualization with SCV – Dec 2008

16. The End IS&T Scientific Visualization Tutorial - Spring 2010