5323

Interactive rendering of large unstructured grids using dynamic level-of-detail

Steven P. Callahan, Joao L. D. Comba, Peter Shirley, Claudio T. Silva
Scientific Computing and Imaging Institute, University of Utah, Logan, UT, USA
IEEE Visualization, 2005. VIS 05

@article{callahan2005interactive,

   title={Interactive rendering of large unstructured grids using dynamic level-of-detail},

   author={Callahan, S.P. and Comba, J.L.D. and Shirley, P. and Silva, C.T.},

   year={2005},

   publisher={IEEE Computer Society}

}

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We describe a new dynamic level-of-detail (LOD) technique that allows real-time rendering of large tetrahedral meshes. Unlike approaches that require hierarchies of tetrahedra, our approach uses a subset of the faces that compose the mesh. No connectivity is used for these faces so our technique eliminates the need for topological information and hierarchical data structures. By operating on a simple set of triangular faces, our algorithm allows a robust and straightforward graphics hardware (GPU) implementation. Because the subset of faces processed can be constrained to arbitrary size, interactive rendering is possible for a wide range of data sets and hardware configurations.
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