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DTSTAMP:20260114T163703Z
LOCATION:Meeting Room C4.8\, Level 4 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231212T140000
DTEND;TZID=Australia/Melbourne:20231212T141500
UID:siggraphasia_SIGGRAPH Asia 2023_sess140_papers_695@linklings.com
SUMMARY:Collapsing Embedded Cell Complexes for Safer Hexahedral Meshing
DESCRIPTION:Hendrik Brückler and Marcel Campen (Osnabrück University)\n\nW
 e present a set of operators to perform modifications, in particular colla
 pses and splits, in volumetric cell complexes which are discretely embedde
 d in a background mesh. Topological integrity and geometric embedding vali
 dity are carefully maintained. We apply these operators strategically to b
 lock decompositions, so-called T-meshes or base complexes, in the context 
 of hexahedral mesh generation. This allows circumventing the expensive and
  unreliable global volumetric remapping step in the versatile meshing pipe
 line based on 3D integer-grid maps. In essence, we reduce this step to sim
 pler local cube mapping problems, for which reliable solutions are availab
 le. As a consequence, the robustness of the mesh generation process is inc
 reased, especially when targeting coarse or block-structured hexahedral me
 shes. We furthermore extend this pipeline to support feature alignment con
 straints, and systematically respect these throughout, enabling the genera
 tion of meshes that align to points, curves, and surfaces of special inter
 est, whether on the boundary or in the interior of the domain.\n\nRegistra
 tion Category: Full Access\n\nSession Chair: Nicholas Sharp (NVIDIA)\n\n
URL:https://asia.siggraph.org/2023/full-program?id=papers_695&sess=sess140
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