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Simple Virtual
Environments (SVE) are used as the backbone of this application.
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VE includes a
furnished single family home, a fire truck, a fire hydrant, various tools and
firefighters. The trainee issues commands to the virtual firefighters. The
command entry is performed by an operator who translates the verbal commands
of the trainee into commands in the GCI.
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GCI reduces input
errors, provides fast and easy entry of commands into the system and allows
the operator to monitor the status of the fire teams in the VE. GCI is a
standalone application that uses TCP/IP sockets to exchange messages with the
VE.
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A* algorithm is used for planning the path of
the firefighter. A path from the firefighter’s current position to their
destination that avoids all the obstacles must be found
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Animation and models
were done using 3D Studio Max. Animation includes: cutting, chopping,
walking, crawling, climbing, pulling and spraying a hose, etc.
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NIST’s Fire Dynamic
Simulator is used to compute realistic physical fire and smoke behavior and
output volumetric data inside of our house.
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Run Length Encoding
compression is used to compress the data files to a manageable size.
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A voxel-based
splatting renderer is used to draw the fire and the smoke.
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This project is a
prototype and is still in development. Currently, the authors are working to
improve some aspects of the application and to add new features.
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(St. Julien et. Al.,
2003)
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