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Real‐time dynamics for geometric textures in shell
Author(s) -
Huang Jin,
Sun Hanqiu,
Zhou Kun,
Bao Hujun
Publication year - 2009
Publication title -
computer animation and virtual worlds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.225
H-Index - 49
eISSN - 1546-427X
pISSN - 1546-4261
DOI - 10.1002/cav.303
Subject(s) - computer science , geometric modeling , position (finance) , geometric shape , geometric primitive , embedding , geometric design , texture (cosmology) , computer graphics (images) , shell (structure) , computer graphics , computer vision , algorithm , artificial intelligence , geometry , image (mathematics) , mathematics , materials science , finance , composite material , economics
Embedding geometric textures in a shell space around an arbitrary surface has been a popular way to add highly detailed geometric details and enhance visual richness in graphics community, but the dynamic effects of geometric textures have not been modeled and simulated. In this paper, we introduce an efficient algorithm for deforming geometric textures with dynamic effects. The algorithm consists of two steps. First, it computes a deformed shell space by optimizing a material related energy function, which is then used to evaluate the equilibrium position of the geometric texture. Second, an explicit time integration scheme is applied for vibrating the geometric texture around its equilibrium position. Users can deform the geometric textures by dragging its vertices directly, and the dynamic behavior of the geometric textures can be changed by adjusting several material parameters. The dynamic simulation of geometric textures can be easily implemented on GPU and runs at real‐time rates. Copyright © 2009 John Wiley & Sons, Ltd.