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DTSTAMP:20240214T070247Z
LOCATION:Meeting Room C4.11\, Level 4 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231214T115000
DTEND;TZID=Australia/Melbourne:20231214T120500
UID:siggraphasia_SIGGRAPH Asia 2023_sess131_papers_391@linklings.com
SUMMARY:Authoring and Simulating Meandering Rivers
DESCRIPTION:Technical Papers\n\nAxel Paris (Université Claude Bernard Lyon
 , Adobe); Eric Guérin (LIRIS); Pauline Collon (Université de Lorraine); an
 d Eric Galin (LIRIS)\n\nWe present a method for interactively authoring an
 d simulating meandering river networks. Starting from a terrain with an in
 itial low-resolution network encoded as a directed graph, we simulate the 
 evolution of the path of the different channels using a physically-based m
 igration equation augmented with control terms. The curvature-based terms 
 in the equation allow us to reproduce phenomena identified in geomorpholog
 y, such as downstream migration of bends. Control terms account for the in
 fluence of the landscape topography and user-defined river trajectory cons
 traints. Our model implements catastrophe events that shape meandering net
 works, such as cutoff forming oxbow lakes and avulsions. We visually show 
 the effectiveness of our method and compare the generated networks quantit
 atively to river data by analyzing sinuosity and wavelength metrics. Our v
 ector-based model runs at interactive rates, allowing for efficient author
 ing of large-scale meandering networks.\n\nRegistration Category: Full Acc
 ess\n\nSession Chair: Neil A. Dodgson (Victoria University of Wellington)
URL:https://asia.siggraph.org/2023/full-program?id=papers_391&sess=sess131
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