A new method for controlling smoke's shape

Authors:
Yongxia Zhou;Jiaoying Shi;Jiarong Yu
Affiliations:
State Key Lab of CAD&CG, Zhejiang University, China;State Key Lab of CAD&CG, Zhejiang University, China;State Key Lab of CAD&CG, Zhejiang University, China
Venue:
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
Year:
2005

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Abstract

In this paper we present a novel method for efficiently controlling the smoke's shape. Given the user-specified shape, a geometric model, our method generates a simulation in which smoke flows out somewhere and forms the shape. The geometric model serves as a black hole that applies attraction force to the fluid. The smoke is attracted to flow into the model and prevented from flowing out the model. In additional, an inner driving force term that drives the smoke from the dense region to the thin region in the geometric model, is added to the Navier-Stokes equations. Two force terms we added, need very little cost compared to the ordinary NS equations.