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  • Will Schroeder's avatar
    Accelerate geometry extraction especially for unstructured grids · 320464e6
    Will Schroeder authored
    This commit acclerates geometry extraction of vtkGeometryFilter by
    1) tuning data access; 2) adding a new, higher-performing method to
    vtkUnstructuredGrid::IsCellBoundary(); and 3) threading the algorithm.
    At this point typical performance improvements are 5-10x over
    vtkDataSetSurfaceFilter (which is harder to thread because the global
    face hash table is a parallel bottleneck, and requires
    additional support for compositing the hash table.)