Virtual Environments and the CAVE in Engineering Science and Mechanics: Collaborative Research and Distance Learning University Visualization and Animation Group UVAGUVAG NIA at LaRC Friday, June 13, 2003
Prof. Ali Nayfeh, ESM Dr. Lance Arsenault, CS Eric Tester CS ONR Crane-Ship Simulation in the CAVE
UVAGUVAG What is a CAVE? come see for yourself public tours every Tuesday 8-10AM
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D evice I ndependent V irtual E nvironment: R econfigurable, S calable, E xtensible UVAGUVAG
Current SGI-Performer API: DIVERSE interface to Performer (DPF) Works out of the box in SGI-Irix and Linux Elegant Interface Designed for rapid application development, Examples: 1. Loading a model and navigating (“fly-thru”) takes only 11 lines of code 2. A computer science student with no experience in VR development was able to build a prototype visualization tools for nanostructures in 4 days Dynamic Shared Objects (DSOs) load or unload during execution Generic IO support (wands, mice, keyboards, trackers, etc.) Write once -- run everywhere with no changes Powerful shared memory architecture Robust augmentation to performer Generic collaborative tools DIVERSE: current and future features Future release August 2003: Backward compatible Push or Pull IO interface XML based configuration OS 10 support (via X11) Native MS-Windows support Cross platform architecture Windowing API independent Display independent OpenGL Support Open SceneGraph augmentation Message passing abstraction
UVAGUVAG ONR-NavCIITI Task2.1 C & C Visualization CONnical acoustic arRAY CONRAY model Desktop CAVE I-Desk Das NevesR. Kriz
NIST Smokeview 2.0 using DIVERSE DGL API NIST Smokeview running in DGL CAVE simulator ( DGL: OpenGL interface to DIVERSE )
Immersive structural visualization n Design, simulation, and visualization of building structures n Both 2D and 3D interfaces Doug Bowman M. SetarehR. Schubert SAP5-FEM Architecture’s VE-Lab
6-DOF with force haptic feedback along x-y-z ASPIRES: Combining visualization with haptic feedback to enhance molecular docking Haptic device on the right is linked to the molecule (boundary highlighted) above where the researcher/student can feel the force / atomic potentials associated with docking the molecule onto the large protein structure.
UVAGUVAG Combined Research Curriculum Development Network Program Interface Builder (NPIB) is a rapid application deve- lopment tool that researchers could use to create, maintain, and archive numerous parametric studies based on their legacy computer simulations. R. Batra, ESMD. Farkas, MSE R. Kriz, ESM Macro Nano Micro
Fourth order tensor glyph viewed in the CAVE Used in ESM5344 “Wave Propagation in Solids” to study anisotropies associated with crystal class symmetries. These geometries are also used to study reflected and refracted interface waves. UVAGUVAG
UVAGUVAG Visualization and Analysis of Complex Flows in a Cardiovascular System A. Etebari, P. Vlachos, R. Kriz Engineering Science and Mechanics Desk-top, I-Desk, CAVE stress tensor glyph Ali Etebari
AtomView UVAGUVAG NCSA: J. Shalf VT: R. Kriz / D. Farkas With AtomView material scientists can analyze and interpret physics based simulation results Physics based Simulation
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Goal: Explore alternative ways of controlling spacecraft simulators from within a virtual environment. Motivation: (So what’s the point?) - Combine usefulness of both systems to achieve new results and compensate for deficiencies in the individual systems. Current Focus: Manual control, with emphasis on docking procedures. Implementation: (1). Orbital environment – astrodynamics (2). Spacecraft simulator – attitude dynamics and control Other Possible Applications: - Supervisory control - Planning - Observation SSSL Web Page: Presentation : Project Contact: Mike Shoemaker, / / Space Systems Simulation Lab (SSSL)/UVAG Undergraduate Research -- Michael Shoemaker -- 4/18/03 Actual spacecraft simulator In the SSSL Laboratory Computer graphics representation of spacecraft simulator SSLCAVE UVAGUVAG