THE STUDY ON LARGE SCALE CITY 3D SCENE RENDERING

摘要：

The paper researched on rendering art of large scale 3D city sight, and accomplished spatio-temporal data model of city objects taking geometry and action data into account integrated; Referred to the idea of LOD algorithm of terrain quadtree, constituted scene quadtree, and improve search and cull efficiency of discrete city objects; proposed and accomplished a fast collision detection algorithm base on Z_BUFFER value, this method take full advantage of transform matrix and depth information, accomplished fast collision detection and response when user roaming in the fictitious scene as first person. Integrate these technologies, accomplished real time dynamic rendering of large scale 3D city scene.

关键词： spatio-temporal data model metafile relax quadtree collision detection view culling z_buffer depth value

作者: Zhou Yang Xu Qing Xu Kun Lan Chao-zhen

作者单位: Institute of Surveying and Mapping, ZhengZhou 450052, China

会议类型: 国际会议

会议名称: The Joint ISPRS Workshop on 3D City Modelling & Applications,The 6th 3D geoinfo Conference(国际摄影测量与遥感学会“三维城市建模与应用联合研讨会)

会议地点: 武汉

会议语种:英文

页码: 460-467

在线出版日期: 2011-06-26（万方平台首次上网日期，不代表论文的发表时间）