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TZID:Asia/Hong_Kong
X-LIC-LOCATION:Asia/Hong_Kong
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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:20251218T134300
DTEND;TZID=Asia/Hong_Kong:20251218T135400
UID:siggraphasia_SIGGRAPH Asia 2025_sess154_papers_1471@linklings.com
SUMMARY:Compact shape representation utilizing local surface similarities
DESCRIPTION:Albert Garifullin (Keldysh Institute of Applied Mathematics, M
 oscow State University (CMC)); Nikolay Mayorov, Alexey Budak, Sergei Nikit
 in, Egor Prikhodko, Roman Rodionov, and Ivan Korotaev (Moscow State Univer
 sity (IAI), Moscow State University (CMC)); and Vladimir Frolov (Moscow St
 ate University (IAI), Keldysh Institute of Applied Mathematics)\n\nWe prop
 ose SCom Tree, a compact representation for geometry based on Signed Dista
 nce Fields (SDF), which outperforms previous approaches in both size and q
 uality while maintaining comparable rendering speed. Our representation em
 ploys the concept that many surface regions are similar to each other up t
 o a linear transformation, and only a small fraction of them can be stored
  to represent the whole 3D model. At the top level, we use BVH trees to ac
 celerate ray tracing and efficiently cull empty space. The BVH leaves stor
 e octrees, with nodes referencing surface regions, each represented by a s
 mall 3D grid (brick) and transformation. The transformations themselves ar
 e a limited set of rotations and translations that are encoded with the sh
 ort index. \nSCom Tree supports a continuous level of detail that enables 
 efficient streaming and performance control at far distances, making our m
 ethod particularly useful for rendering large-scale 3D models with ray tra
 cing.\n\nRegistration Category: Full Access, Full Access Supporter\n\nSess
 ion Chair: Qingnan Zhou (Adobe)\n\n
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