基于公告牌云团的森林场景快速渲染方法  

Real-time Rendering Method for Forest Scene Based on Billboard Cloud Algorithm

作　　者：金益 方立刚 

机构地区：[1]江苏省现代企业信息化应用支撑软件工程技术研发中心,苏州215104

出　　处：《科学技术与工程》2012年第33期8904-8908,共5页Science Technology and Engineering

基　　金：江苏省现代企业信息化应用支撑软件工程技术研发中心开放基金项目(SX201201);苏州市科技计划项目(SYN201105)资助

摘　　要：数字化虚拟场景中对森林场景的实时渲染是计算机图形学一项重要的内容。渲染方法从森林场景的搭建入手,在研究相关主流方法的基础上,分析了原始公告牌云团算法的优势及裂缝与连通性的问题,并在阐述过程中对原有的简化算法加以改进。提出顶点连接、双纸板模式和平面预调整的方法,避免上述问题以实现上万株树木的高质量渲染。最后的实验数据表明方法的解决方案在保证快速渲染速度的同时也获得了场景在视觉上的逼真性。Real-time rendering of forest scenes in the digital and virtual scene is an important aspect of computer graphic. Rendering method analyzes the advantages and problems of gaps issues and Sub-optimal planes of the Billboard Cloud algorithm from modeling of forest scene based on the research mainstream method, and improves original simplified algorithm, Vertex welding, double cardboard mode and plane pre-adjustment methods are proposed in order to avoid above problem and achieve high-quality rendering of trees, as well as optimized the texture corresponds simplified model to reduce the consumption of texture memory for rendering. The final experiments show that the solution to ensure fast rendering speed but also get visual realism of scene.

关 键 词：森林场景 公告牌云团 顶点连接 双纸板模式 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]