Generating flow fields variations by modulating amplitude and resizing simulation space

Syuhei Sato, Yoshinori Dobashi, Kei Iwasaki, Hiroyuki Ochiai, Tsuyoshi Yamamoto

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 被引用数 (Scopus)

抄録

The visual simulation of fluids has become an important element in many applications, such as movies and computer games. In these applications, large-scale fluid scenes, such as fire in a village, are often simulated by repeatedly rendering multiple small-scale fluid flows. In these cases, animators are requested to generate many variations of a small-scale fluid flow. This paper presents a method to help animators meet such requirements. Our method enables the user to generate flow field variations from a single simulated dataset obtained by fluid simulation. The variations are generated in both the frequency and spatial domains. Fluid velocity fields are represented using Laplacian eigenfunctions which ensure that the flow field is always incompressible. In generating the variations in the frequency domain, we modulate the coefficients (amplitudes) of the basis functions. To generate variations in the spatial domain, our system expands or contracts the simulation space, then the flow is calculated by solving a minimization problem subject to the resized velocity field. Using our method, the user can easily create various animations from a single dataset calculated by fluid simulation. 2013 Copyright held by the Owner/Author.

本文言語英語
ホスト出版物のタイトルSIGGRAPH Asia 2013 Technical Briefs, SA 2013
DOI
出版ステータス出版済み - 12 30 2013
イベントSIGGRAPH Asia 2013 Technical Briefs, SA 2013 - Hong Kong, 香港
継続期間: 11 19 201311 22 2013

出版物シリーズ

名前SIGGRAPH Asia 2013 Technical Briefs, SA 2013

その他

その他SIGGRAPH Asia 2013 Technical Briefs, SA 2013
国/地域香港
CityHong Kong
Period11/19/1311/22/13

All Science Journal Classification (ASJC) codes

  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • ソフトウェア

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