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Diffusion‐Based Snow Cover Generation
Author(s) -
Festenberg Niels v.,
Gumhold Stefan
Publication year - 2011
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/j.1467-8659.2011.01904.x
Subject(s) - snow , animation , computer science , snow cover , texture mapping , diffusion , computation , texture (cosmology) , computer graphics (images) , snowflake , geology , computer vision , geomorphology , algorithm , image (mathematics) , physics , thermodynamics
We present a method to generate snow covers on complex scene geometries. Both volumetric snow shapes and photorealistic texturing are computed. We formulate snow accumulation as a diffusive distribution process on a ground scene. Our theoretical framework is motivated by models for granular material deposition. With the framework we can capture the most relevant features of natural snow cover geometries in a concise local computation scheme. Snow bridges and overhangs are also included. Snow surface texture coordinates are computed to create realistic ground–snow interfaces. Several example scenes and a supplementary snow cover growth animation demonstrate the method's efficiency.