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Authors:Daniel Kallin: Sweden
Publication title:Real Time Large Scale Fluids for Games
Conference:SIGRAD 2008. The Annual SIGRAD Conference Special Theme: Interaction; November 27–28; 2008 Stockholm; Sweden
Publication type: Abstract and Fulltext
Issue:034
Article No.:010
Abstract:This paper presents an implementation of a stable height-field fluid solver on non-uniform quadtree grids. Smoothing kernel interpolation allow one to use semi-Lagrangian advection on the nonuniform grid. A modification to the advection make it mass conserving. The non-uniform grid allow the model to run on a very tight cell budget with high frame rates even for arbitrary sized environments. Gravity acceleration is implemented as a modified explicit Euler step with upwind differencing. The differencing is based on a definition of a node neighbour which doesnt require the neighbor to be a quadtree leaf. This solves the problems of hanging nodes inherent with quadtrees. This model is suitable for water propagating over height field terrains in interactive environments like video games.
Language:English
Keywords:Fluid dynamics; semi-Lagrangian advection; upwind differencing; adaptive grid; quadtree
Year:2008
No. of pages:8
Pages:31-38
Series:Linköping Electronic Conference Proceedings
ISSN (print):1650-3686
ISSN (online):1650-3740
File:http://www.ep.liu.se/ecp/034/010/ecp083410.pdf
Available:2008-11-27
Publisher:Linköping University Electronic Press; Linköpings universitet

REFERENCE TO THIS PAGE
Daniel Kallin (2008). Real Time Large Scale Fluids for Games, SIGRAD 2008. The Annual SIGRAD Conference Special Theme: Interaction; November 27–28; 2008 Stockholm; Sweden http://www.ep.liu.se/ecp_article/index.en.aspx?issue=034;article=010 (accessed 11/28/2014)