中文摘要：

针对结构错综复杂的目标实时绘制中的遮挡剔除问题,提出了部件可视锥概念,用一个圆锥区域描述部件在考虑其邻近范围其他部件联合遮挡情况下的可视区域,并提出了基于部件可视锥的遮挡剔除算法,实现了实时绘制过程中可见性的快速判断,并以一个典型的虚拟建筑环境为例测试了本文方法的有效性。实验证明,利用可视锥能简化绘制过程中的可见性识别,大大提高实时绘制效率。

英文摘要：

Aiming at the critical occlusion culling issues of complicated objects for real-time rendering,the concept of component visible cone is defined to describe the visible region when the occlusion fusion effected by other components are considered,which can be used for fast visibility test.In this paper the occlusion culling algorithm based on the component visible cone is proposed,and a typical virtual architecture environment is employed as a case for experimental analysis,the results prove that the visibility test during the rendering is simplified dramatically by means of the precomputed visible cone,the efficiency of real-time rendering is therefore improved remarkably.