基于BSP树的三维场景渲染方法研究  

Research of BSP Tree-based Three-dimensional Scene Rendering Method

作　　者：乔云婷 张弘[1] 

机构地区：[1]渭南师范学院数学与信息科学学院,陕西渭南714099

出　　处：《渭南师范学院学报》2014年第15期86-89,共4页Journal of Weinan Normal University

基　　金：国家级大学生创新创业训练计划项目:司马迁祠古建筑群三维建模及虚拟展示研究(201210723019)

摘　　要：BSP树在计算机图形学中应用于视点运动三维场景显示的计算.一般BSP树以递归的方式对平面进行分割,但实际应用的三维场景复杂度较高,也就使得树的复杂度非常高,预处理时间长.文章针对三维场景模型渲染速度慢的问题,基于空间BSP树的理论基础,通过引入包围体的方法使场景中的物体能够快速实现空间二分树划分,进而提高渲染速度.通过实验比较直接渲染和包围体渲染的速度,验证了引入包围体能够缩短预处理时间,提高场景的渲染速度.BSP tree is used in calculating computer graphics viewpoint movement in three-dimensional scene display. BSP is generally divided by a straight line on the plane, but there is the more complexity of the practical application of three-dimensional scenes, it makes the tree more complex and pretreatment time longer. In this paper stresses on the lower speed of the three-dimensional scene model rendering, based on the theoretical basis of space BSP trees and introduction of a method surrounded by making a three-dimensional body of objects in the scene to quickly achieve binary tree space division, in order to improve rendering speed. By experiments, the direct rendering and the rendering speed of the surrounded objects are verified in improving to reduce the time of the pretreatment by introducing surrounded objects and increasing the rendering speed of the scene.

关 键 词：BSP树 三维场景 分割平面 渲染方法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]