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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_391@linklings.com
SUMMARY:Authoring and Simulating Meandering Rivers
DESCRIPTION:Axel Paris (Université Claude Bernard Lyon, Adobe); Eric Guéri
 n (LIRIS); Pauline Collon (Université de Lorraine); and Eric Galin (LIRIS)
 \n\nWe present a method for interactively authoring and simulating meander
 ing river networks. Starting from a terrain with an initial low-resolution
  network encoded as a directed graph, we simulate the evolution of the pat
 h of the different channels using a physically-based migration equation au
 gmented with control terms. The curvature-based terms in the equation allo
 w us to reproduce phenomena identified in geomorphology, such as downstrea
 m migration of bends. Control terms account for the influence of the lands
 cape topography and user-defined river trajectory constraints. Our model i
 mplements catastrophe events that shape meandering networks, such as cutof
 f forming oxbow lakes and avulsions. We visually show the effectiveness of
  our method and compare the generated networks quantitatively to river dat
 a by analyzing sinuosity and wavelength metrics. Our vector-based model ru
 ns at interactive rates, allowing for efficient authoring of large-scale m
 eandering networks.\n\nRegistration Category: Full Access, Enhanced Access
 , Trade Exhibitor, Experience Hall Exhibitor\n\n
URL:https://asia.siggraph.org/2023/full-program?id=papers_391&sess=sess209
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