【摘要】 针对织物动态仿真粒子系模型做了深入的研究。为了解决织物仿真中的非线性碰撞约束问题,笔者提出了新的碰撞检测及相应的碰撞反应算法。该算法不仅在直观上有很好的物理解释,而且简单易行,计算量小,可以适用于实时模拟,对于很多复杂的碰撞情况具有处理上的统一。另外,笔者提出用显式积分方法来求解模型建立起来的微分方程,该方法的优点是不需解线性方程组,处理碰撞问题时,可以直接求出非常精确的碰撞时刻,从而达到了提高计算效率的目的。更多还原

【Abstract】 In this paper, we studied the fabrics simulation with particle-system model. We put forward a new colliding check and reaction algorithm to deal with the non-linear constraint colliding problem. Our algorithms are simple to realize and the computation quantity is reduced substantially. Besides, we use explicit method to solve the differential equations built in the simulation. The advantages of the explicit method are, firstly, it doesn’t need to solve linear equations, and secondly, the colliding time can be computed very precisely. It can be seen in our numerical results that the method is effective and fast.更多还原