【摘要】 树木的结构和物理性质的复杂性使得人们很难对其进行动态模拟 .该文提出一个深度优先的数值积分遍历算法 ,把树作为一个整体考虑 ,求得整棵树协调一致的位移 ,较好地表现了树的整体动感 .此算法作为一个整体性算法也可推广用于其他树种的模拟 .另外 ,文章还分析了枝条对风的遮挡关系 ,包括过遮挡、孔洞、狭长缝隙及透射 .基于 Z- buffer算法思想对这些遮挡关系进行了处理 ,取得了令人满意的效果 .更多还原

【Abstract】 The authors simulated the movement of willow’s end branch blown by wind. Clearly this is not natural and real. A tree moves as a whole. Now an algorithm named depth first numerical integral tree traversal algorithm is given. The algorithm can generate the harmonic and consistent movement of a tree, thus animates the dynamic pose of tree very well. It can also be used to animate other kinds of trees. Moreover, the authors analyzed the obstruction effect of branches and leaves reacting on wind, which including no obstruction, hole, aperture and penetration. Based on the principle of Z buffer, these effects are processed, and the results are satisfied.更多还原