基于分层次细节模型的场景快速绘制  

Fast Drawing Algorithm of Static and Dynamic Scene Based on HDM

作　　者：雷伟杰[1] 蔡勇[1] 

机构地区：[1]西南科技大学计算机学院,四川绵阳621002

出　　处：《兵工自动化》2004年第5期54-55,共2页Ordnance Industry Automation

摘　　要：分层次细节模型(HDM)动静态场景快速绘制算法根据几何数据集,用场景图表示几何体,先计算局部场景图分层次细节(HLOD),并随场景中物体运动,更新与动态场景相对应的HDM。然后依据空间近似度,重新聚集场景图节点,最后增量更新场景图边界体层次。并将HLOD需重新计算的节点插入到队列,用简化处理方法计算HDM。以显示列表快速绘制LOD和HDM。Fast drawing algorithm of static and dynamic scene based on hierarchical detail model (HDM) is that according to geometry data set, geometrical body is expressed with scene graph, and HLOD (hierarchical Levels of Details) of local scene graph is calculated. Refresh the corresponding HDM models according to the dynamic scene when the objects moves, and regroup the nodes according to their spatial proximity, then refresh the graph edge levels incrementally and insert the nodes in the queue for HDM to simplify. Finally, fast drawing LOD and HDM is displayed using display lists.

关 键 词：场景绘制 分层次细节模型 层次细节 分层次细节 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]