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DTSTART:19911015T033000
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BEGIN:VEVENT
DTSTAMP:20251218T030653Z
LOCATION:Meeting Room S421\, Level 4
DTSTART;TZID=Asia/Hong_Kong:20251215T152200
DTEND;TZID=Asia/Hong_Kong:20251215T153300
UID:siggraphasia_SIGGRAPH Asia 2025_sess108_papers_1239@linklings.com
SUMMARY:Solid-Shell Labeling for Discrete Surfaces
DESCRIPTION:Siqi Wang (New York University, NYU Courant Institute of Mathe
 matical Sciences); Janos Meny, Izak Grguric, and Mehdi Rahimzadeh (Roblox)
 ; Denis Zorin and Daniele Panozzo (New York University); and Hsueh-Ti Dere
 k Liu (Roblox)\n\nArtist-created meshes in-the-wild often do not have a we
 ll defined interior. We observe that they typically consist of a mix of so
 lid elements, faces that bound a volume, and shell elements that represent
  the medial surface of a thin shell. The lack of a well-defined interior p
 revents downstream applications, such as solid-modeling, simulation, and m
 anufacturing. We present a method that takes as input a surface mesh and a
 ssigns to each face a label determining whether it belongs to a solid or s
 hell. These labels reduce ambiguity by defining the interior for solid fac
 es through thresholding the generalized winding number field, and for shel
 l faces as the volume within an offset. We cast the labeling problem as an
  optimization that outputs a solid/shell label for each face, guided by a 
 sparse set of user inputs. Once labeling is complete, we show how the shap
 e can be volume meshed by passing the shell faces through an offset mesher
  and the solid faces to an off-the-shelf tetrahedral mesher, producing a f
 inal volumetric mesh by taking their union. Experiments on diverse meshes 
 with defects and multiple solid and shell components demonstrate that our 
 approach delivers the desired labels, enabling modeling and simulation on 
 wild meshes in a way that respects the user intent.\n\nRegistration Catego
 ry: Full Access, Full Access Supporter\n\nSession Chair: Xiao-Ming Fu (Uni
 versity of Science and Technology of China)\n\n
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