芸術科学会論文誌 投稿用カバーシート ■ 論文種類(以下のうちから一つ選択) ・原著論文 フルペーパー ■ 論文分野(以下のうちから一つ選択) 2) 科学系分野 ■ カテゴリ(1個以上選択) a-3) CG技術(アニメーション) a-1) CG技術(モデリング) ■ 該当特集(以下のうちから一つ選択) ・一般論文 ■ 論文題名(和文、英文) An Efficient Hybrid Method for Animating the Growth of Large-Scale Cumulus-Type Cloud ■ 著者名(和文、英文) ママット・アブドゥカディル Mamat Abdukadir 藤本忠博  Tadahiro Fujimoto *メムティミン・ゲーニ    Mamtimin Geni 千葉則茂  Norishige Chiba ■ 著者所属(和文、英文) 岩手大学 Iwate University *新疆大学 Xinjiang University ■ 著者e-mail mamat@cis.iwate-u.ac.jp (ママット・アブドゥカディル) fujimoto@cis.iwate-u.ac.jp (藤本忠博) mgheni@263.net (メムティミン・ゲーニ) nchiba@cis.iwate-u.ac.jp (千葉則茂) ■ 連絡担当者の氏名、住所、所属、電話、Fax、e-mail 氏名 ママット・アブドゥカディル 住所 〒020-8551 岩手県盛岡市上田4-3-5 所属 岩手大学工学部情報システム工学科 千葉・藤本研究室 電話 019-621-6470 Fax 019-624-4078 E-mail mamat@cis.iwate-u.ac.jp ■ 論文概要(和文400字程度、英文100ワード程度) We present an efficient method for creating large-scale animations of vertical developing cumulus-type cloud growth. The dynamics of cloud formation, growth, and motion are complex phenomena, and depicting these dynamics remains a significant challenge in the area of simulation and animation of natural phenomena in computer graphics. A novel aspect of this paper is the combination of a physical simulation method and a stochastic simulation method for obtaining an animation of large-scale phenomena with effects that are more natural. The physical simulation method is used to accurately solve fluid dynamics on a relatively small scale and prepare a 3D primitive pattern of a realistic animation of cloud growth. The stochastic simulation method uses 1/fb noise functions and performs a large-scale simulation of an air current caused by the rising and condensation of water vapor due to the thermal effect. Many copies of the 3D primitive pattern are recursively mapped into the air current to constitute a large-scale continuous cloud growth. This combination of the physical and stochastic simulation methods can animate large-scale phenomena efficiently without enormous computational time and memory. The physical and stochastic simulations are achieved by particle-based methods, and the mapping is applied on simulated particles. Experimental results show that the proposed method efficiently creates realistic animations of large-scale cumulus and cumulonimbus clouds. ■ キーワード(和文5個程度、英文5個程度) Hybrid Method, Natural Phenomena, Cloud Growth, Large-Scale Animation, Particle