摘要： 计算道路网络在其所覆盖地理范围内带来的区域划分情况，针对道路网络在三维虚拟场景，特别是基于LOD地形模型的虚拟场景中的可视化出现的问题，该文提出一种基于模版阴影锥算法的道路绘制方法。仿真结果表明，该方法可在地形表面上精确绘制出道路 网络。

关键词: 道路网络, 地形, 视点连续, 模版阴影锥

Abstract: This paper computes the information of region division, presents a stencil shadow volume algorithm based method to render the road net to solve the problems when rendering road net in the 3D virtual scene especially in the LOD terrain based virtual scene. Simulation result shows that this method can render the roads exactly on the terrain surface.

Key words: road net, terrain, Level Of Detail(LOD), stencil shadow volume

中图分类号: 

• TP391.41