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 (A4版3ページ以上) ■ 論文分野(以下のうちから一つ選択) ・科学系分野 ■ 該当特集(以下のうちから一つ選択) ・特集名「NICOGRAPH International 2004」 ■ 論文題名(和文、英文) 変形,ひび割れおよび侵食を伴う木材の経年変化のCG表現 CG Representation of Wood Aging with Distortion, Cracking and Erosion ■ 著者名(和文、英文)   尹新,藤本忠博,千葉則茂   Xin Yin, Tadahiro Fujimoto and Norishige Chiba ■ 著者所属(和文、英文)   岩手大学   Iwate University ■ 著者e-mail yinxin@cis.iwate-u.ac.jp, fujimoto@cis.iwate-u.ac.jp, nchiba@cis.iwate-u.ac.jp. ■ 連絡担当者の氏名、住所、所属、電話、Fax、e-mail 氏名: 尹新  住所:020-8551 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: yinxin@cis.iwate-u.ac.jp ■ 論文概要(和文400字程度、英文100ワード程度) Materials exposed to the elements change in appearance because of aging. Because wood is an organic substance, cracks and the surface erosion occur easily. To produce realistic computer graphic images, we need simulate the aging phenomenon also. Here, we propose a visual simulation of the distortion, cracking, and erosion of wood. In this method, wood is represented by a tetrahedral mesh. By setting semi-physical variables at each vertex in this mesh, a visual simulation of wood aging can be accomplished. The surface of the wood is defined by values assigned to the superficial tetrahedral mesh vertices. Changes in the surface are achieved by value changes. The effectiveness of this method is demonstrated by applications on a plank and shapes such as a bunny and an armadillo statue. ■ キーワード(和文5個程度、英文5個程度) ビジュアルシミュレーション,木材,経年変化,ひび割れ,侵食 Visual Simulation, Wood, Aging, Crack, Erosion