移动环境下三维场景的实时渲染技术研究  

Research on Real-time Rendering Technology of Mobile 3D Scene

作　　者：丁晶[1] 秦亮军[1] 

机构地区：[1]广州市城市规划勘测设计研究院,广东广州510060

出　　处：《城市勘测》2011年第6期18-22,共5页Urban Geotechnical Investigation & Surveying

基　　金：国家自然科学基金项目(40871210)

摘　　要：讨论了移动三维图形的实时显示技术,通过建立LOD模型和采用分层分块的数据组织方式,并采用基于四叉树层次结构的视景体裁剪优化算法,来减少场景渲染的模型数据量,从而加速三维实体模型的显示速度,达到流畅连续地实时显示移动环境下三维场景的目的。This paper discussed the data organization and rendering technology in the process of real-time scene display.Specifically,LOD modeling and hierarchical blocking were used to reduce the time of data from auxiliary memory to main memory.At the same time,to alleviate the burden of rendering pipeline,quadtree-based hierarchical view frustum culling algorithm was applied and optimized to cut down the rendering model data.Then we could achieve a relatively smooth displaying effect.

关 键 词：移动三维地图 LOD 视景体裁剪算法 

分 类 号：P208.2[天文地球—地图制图学与地理信息工程]