Real-Time Path Planning in Dynamic Virtual Environments Using Multiagent Navigation Graphs

A. Sud, E. Andersen, S. Curtis, M.C. Lin, D. Manocha
2008 IEEE Transactions on Visualization and Computer Graphics  
We present a novel approach for efficient path planning and navigation of multiple virtual agents in complex dynamic scenes. We introduce a new data structure, Multiagent Navigation Graph (MaNG), which is constructed using first-and second-order Voronoi diagrams. The MaNG is used to perform route planning and proximity computations for each agent in real time. Moreover, we use the path information and proximity relationships for the local dynamics computation of each agent by extending a social
more » ... force model [15] . We compute the MaNG using graphics hardware and present culling techniques to accelerate the computation. We also address undersampling issues and present techniques to improve the accuracy of our algorithm. Our algorithm is used for real-time multiagent planning in pursuit-evasion, terrain exploration, and crowd simulation scenarios consisting of hundreds of moving agents, each with a distinct goal.
doi:10.1109/tvcg.2008.27 pmid:18369262 fatcat:wvhfr4phnfhnlls22w37qi2ljq