计算机应用研究
計算機應用研究
계산궤응용연구
APPLICATION RESEARCH OF COMPUTERS
2010年
1期
396-398
,共3页
孙武峰%周明全%耿国华%毛小林
孫武峰%週明全%耿國華%毛小林
손무봉%주명전%경국화%모소림
头发建模%Cosserat模型%拉格朗日动力学%基尔霍夫方程
頭髮建模%Cosserat模型%拉格朗日動力學%基爾霍伕方程
두발건모%Cosserat모형%랍격랑일동역학%기이곽부방정
hair modeling%Cosserat model%Lagrangian dynamics%Kirchhoff equations
计算机动画中,模拟人的头发是非常困难的.基于动态的、不可伸展弹性杆的基尔霍夫方程,提出采用超螺旋线表示头发股来解决头发股的弯曲和挠曲的非线性行为.将头发股分成N段,使用拉格朗日力学定律动画绘制每段超螺旋杆,最后将各段连接起来,构成整个头发股.基于其他可行的模型与动态超螺旋线模型的比较,实验结果显示模型能够有效地处理大范围具有高逼真度的卷发.
計算機動畫中,模擬人的頭髮是非常睏難的.基于動態的、不可伸展彈性桿的基爾霍伕方程,提齣採用超螺鏇線錶示頭髮股來解決頭髮股的彎麯和撓麯的非線性行為.將頭髮股分成N段,使用拉格朗日力學定律動畫繪製每段超螺鏇桿,最後將各段連接起來,構成整箇頭髮股.基于其他可行的模型與動態超螺鏇線模型的比較,實驗結果顯示模型能夠有效地處理大範圍具有高逼真度的捲髮.
계산궤동화중,모의인적두발시비상곤난적.기우동태적、불가신전탄성간적기이곽부방정,제출채용초라선선표시두발고래해결두발고적만곡화뇨곡적비선성행위.장두발고분성N단,사용랍격랑일역학정율동화회제매단초라선간,최후장각단련접기래,구성정개두발고.기우기타가행적모형여동태초라선선모형적비교,실험결과현시모형능구유효지처리대범위구유고핍진도적권발.
Simulating human hair is recognized as one of the most difficult tasks in computer animation.The concept that each strand was represented by a Super-Helix was presented to solve the nonlinear behavior of hair strands with respect to bending and twisting, based on the Kirchhoff equations for dynamic, inextensible elastic rods. Hair grand was divided into N pieces,which each piecewise helical rod which was animated using the principles of Lagrangian mechanics.At last, each piece would be connected to constitute the entire hair grand. A series of experiments based on the comparison of other realistic models for dynamic hair and dynamic Super-Helix, which shows that the model efficiently handles a wide range of curls with a high level of realism.