视点依赖的温室场景模拟与交互式漫游

为对包含日光温室的农业场景进行实时、逼真的绘制，采用基于视点的连续细节层次（LOD）来减少实际需要绘制的网格数据量，并基于包围盒技术实现了视点的碰撞检测，同时使用可见性剔除算法来加速场景渲染速度。在渲染温室内植物时，通过几何变换实现了大规模植物群体的快速构建，并在场景中使用阴影体算法来渲染阴影，生成了具有真实感的大规模温室农业场景。模拟结果表明该方法能有效地减少渲染的面元数目，大大提高了绘制速率，场景有较高的真实感，能够满足交互式实时漫游的要求。

View-dependent greenhouse scene modeling and interactive walkthrough

A method for real-time and realistic rendering virtual agricultural scenes that include group of solar greenhouse was proposed in this paper.This method used view-dependent continuous LOD models to reduce the amount of polygons needed to be rendered actually,and a collision detection algorithm was implemented based on bounding box.The rendering speed of the scene was improved by using visibility culling techniques.In the constructed virtual agricultural scenes,large-scale plants stands were created rapidly ...