BEGIN:VCALENDAR VERSION:2.0 PRODID:Linklings LLC BEGIN:VTIMEZONE TZID:America/Los_Angeles X-LIC-LOCATION:America/Los_Angeles BEGIN:DAYLIGHT TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT DTSTART:19700308T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST DTSTART:19701101T020000 RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260417T190051Z LOCATION:West Building\, Rooms 220-222 DTSTART;TZID=America/Los_Angeles:20250811T154500 DTEND;TZID=America/Los_Angeles:20250811T173500 UID:siggraph_SIGGRAPH 2025_sess140@linklings.com SUMMARY:Shapes, Surfaces & Forms DESCRIPTION:Meschers: Geometry Processing of Impossible Objects\n\nMescher s are a mesh representation for Escheresque geometry. They allow us to sol ve partial differential equations on the surface of an impossible object, meaning that we can find impossible shortest paths, perform mescher smooth ing, and even inverse render a mescher from an image.\n\n\nAna Dodik, Isab ella Yu, Kartik Chandra, and Jonathan Ragan-Kelley (Computer Science and A rtificial Intelligence Laboratory (CSAIL), Massachusetts Institute of Tech nology (MIT)); Joshua Tenenbaum (Massachusetts Institute of Technology (MI T)); and Vincent Sitzmann and Justin Solomon (Computer Science and Artific ial Intelligence Laboratory (CSAIL), Massachusetts Institute of Technology (MIT))\n---------------------\nDesigning 3D Anisotropic Frame Fields with Odeco Tensors\n\nOur method proposes a novel computational design framewo rk for designing anisotropic tensor fields. It enables flexible control ov er scalings without requiring users to specify orientations explicitly. We apply these anisotropic tensor fields to various applications, such as an isotropic meshing, str...\n\n\nHaikuan Zhu and Hongbo Li (Wayne State Univ ersity); Hsueh-Ti Derek Liu (Roblox, University of British Columbia); Wenp ing Wang (Texas A&M University); and Jing Hua and Zichun Zhong (Wayne Stat e University)\n---------------------\nDiscrete Torsion of Connection Forms on Simplicial Meshes\n\nAlthough discrete connections are ubiquitous in v ector field design, their torsion remains unstudied. We extend the existin g toolbox to control the torsion of discrete connections: we introduce a n ew discrete Levi-Civita connection and define torsion as a measure of devi ation from this reference, so...\n\n\nTheo Braune (Centre National de la R echerche Scientifique - Laboratoire d'informatique de l'École Polytechniqu e (LIX), Inria Saclay); Mark Gillespie (Inria Saclay); Yiying Tong (Michig an State University); and Mathieu Desbrun (Inria Saclay)\n---------------- -----\nEnd-to-end Surface Optimization for Light Control\n\nDesigning free form surfaces to reflect or refract light to achieve target light distribu tions is a challenging inverse problem. We propose an end-to-end optimizat ion strategy using a novel differentiable rendering model driven by image errors, combined with face-based optimal transport initializatio...\n\n\nY uou Sun (University of Science and Technology of China), Bailin Deng (Card iff University), Juyong Zhang (University of Science and Technology of Chi na), and Yuou Sun\n---------------------\nPatch-Grid: An Efficient and Fea ture-Preserving Neural Implicit Surface Representation\n\nWe introduce Pat ch-Grid, a unified neural implicit representation that efficiently represe nts complex shapes, preserves sharp features, and handles open boundaries and thin geometric details. By decomposing shapes into patches encapsulate d by adaptive feature grids and merging them through localized...\n\n\nGuy ing Lin (Carnegie Mellon University); Lei Yang (The University of Hong Kon g); Congyi Zhang (The University of British Columbia); Hao Pan (Tsinghua U niversity); Yuhan Ping, Guodong Wei, and Taku Komura (The University of Ho ng Kong); John Keyser and Wenping Wang (Texas A&M University); and Guying Lin\n---------------------\nShape Space Spectra\n\nWe introduce shape-spac e eigenanalysis to compute eigenfunctions across continuously-parameterize d shape families. These eigenfunctions are obtained by minimizing a variat ional principle. To handle eigenvalue dominance swaps at points of multipl icity, we incorporate dynamic reordering during optimiz...\n\n\nYue Chang and Otman Benchekroun (University of Toronto), Maurizio M. Chiaramonte (Me ta Reality Labs Research), Peter Yichen Chen (MIT CSAIL), and Eitan Grinsp un (University of Toronto)\n---------------------\nPiecewise Ruled Approxi mation for Freeform Mesh Surfaces\n\nWe propose a method to approximate ar bitrary freeform surface meshes with piecewise ruled surfaces. Our approac h optimizes mesh shape and ruling direction field simultaneously, extracts patch topology, and refines ruling positions and orientations. The techni que effectively approximates diverse free...\n\n\nYiling Pan, Zhixin Xu, a nd Bin Wang (Tsinghua University) and Bailin Deng (Cardiff University)\n-- -------------------\nOn the Surface - Interactive Discussion\n\nAfter the summary presentations, attendees will participate in an interactive discus sion. Outside the room will be a series of poster boards for authors to ga ther around with the audience. Authors are invited to bring any material r elated to their paper that could instigate further conversation such...\n\ n\nInterest Area: Research & Education\n\nRecording: Livestreamed, Not Liv estreamed, Recorded, Not Recorded\n\nRegistration Category: Full Conferenc e, Virtual Access, Monday\n\nSession Chair: Eugene Zhang (Oregon State Uni versity) END:VEVENT END:VCALENDAR