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DTSTAMP:20260114T163633Z
LOCATION:Darling Harbour Theatre\, Level 2 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231212T093000
DTEND;TZID=Australia/Melbourne:20231212T124500
UID:siggraphasia_SIGGRAPH Asia 2023_sess209_papers_731@linklings.com
SUMMARY:Progressive Shell Quasistatics for Unstructured Meshes
DESCRIPTION:Jiayi Eris Zhang (Stanford University, Adobe); Jérémie Dumas a
 nd Raymond Fei (Adobe); Alec Jacobson (University of Toronto, Adobe); Doug
  James (Stanford University); and Danny Kaufman (Adobe)\n\nThin shell stru
 ctures exhibit complex behaviors critical for modeling and design across w
 ide-ranging applications. To capture their mechanical response requires fi
 nely detailed, high-resolution meshes. Corresponding simulations for predi
 cting equilibria with these meshes are expensive, whereas coarse-mesh simu
 lations can be fast but generate unacceptable artifacts and inaccuracies. 
 The recently proposed progressive simulation framework [Zhang et al. 2022]
  offers a promising avenue to address these limitations with consistent an
 d progressively improving simulation over a hierarchy of increasingly high
 er-resolution models. Unfortunately, it is currently severely limited in a
 pplication to meshes and shapes generated via Loop subdivision. \n\nWe pro
 pose Progressive Shells Quasistatics to extend progressive simulation to t
 he high-fidelity modeling and design of all input shell (and plate) geomet
 ries with unstructured (as well as structured) triangle meshes. To do so w
 e construct a fine-to-coarse hierarchy with a novel nonlinear prolongation
  operator custom-suited for curved-surface simulation that is rest-shape p
 reserving, supports complex curved boundaries, and enables the reconstruct
 ion of detailed geometries from coarse-level meshes. Then, to enable conve
 rgent, high-quality solutions with robust contact handling, we propose a n
 ew, safe and efficient shape-preserving upsampling method that ensures non
 -intersection and strain-limits during refinement. With these core contrib
 utions, Progressive Shell Quasistatics enables, for the first time, wide-g
 enerality for progressive simulation including support for arbitrary curve
 d-shell geometries, progressive collision objects, curved boundaries, and 
 unstructured triangle meshes -- all while ensuring that preview and final 
 solutions remain free of intersections. We demonstrate these features acro
 ss a wide range of stress-tests and examples where progressive simulation 
 captures the wrinkling, folding, twisting and buckling behaviors of fricti
 onally contacting thin shells.\n\nRegistration Category: Full Access, Enha
 nced Access, Trade Exhibitor, Experience Hall Exhibitor\n\n
URL:https://asia.siggraph.org/2023/full-program?id=papers_731&sess=sess209
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