High-frequency aware PIC/FLIP in liquid animation

Ryoichi Ando, Reiji Tsuruno

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

1 被引用数 (Scopus)


We present a simple extension to PIC/FLIP(Particle-in-Cell/Fluid-Implicit- Particle) for animating liquid with enhanced behaviors such as pushing or eddying (Figure 1), which we call HFA/PIC/FLIP (High-frequency aware PIC/FLIP). As a fundamental approach we use PIC/FLIP [Brackbill and Ruppel 1986] and compute approximate low-frequency part and high-frequency part of particles velocities. Low-frequency velocities are entirely projected onto divergence free and high-frequency field is partially projected onto divergence free to achieve realistic liquid animations. In contrast to the PIC/FLIP proposed by Zhu and Bridson [Zhu and Bridson 2005]; our approach facilitates "pushing" or "curly" features whereas their approach disperses the momentum towards noisy directions, resulting in dispersion. Recently similar approach has been done with coarse to fine mesh grid [Lentine et al. 2010], we refined directly with particles. We produced several footage of liquid animation and compared with competitive alternatives to show the benefits of the proposed algorithm.

ホスト出版物のタイトルACM SIGGRAPH ASIA 2010 Sketches, SA'10
出版ステータス出版済み - 12 1 2010
イベントACM SIGGRAPH ASIA 2010 Sketches, SA'10 - Seoul, 大韓民国
継続期間: 12 15 201012 18 2010


名前ACM SIGGRAPH ASIA 2010 Sketches, SA'10


その他ACM SIGGRAPH ASIA 2010 Sketches, SA'10

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
  • コンピュータ ビジョンおよびパターン認識


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