大面积真实地形场景库的生成与实时显示技术

Modeling and Real-time Rendering Technology of Real Large Area Terrain Database

大面积真实场景库的生成与实时显示是军事仿真视景系统开发的难点问题。作者研究了解决此问题的关键技术,包括LOD、虚拟纹理、纹理映射、页面动态调度策略和大地形数据库管理;提出了应用上述技术的解决方案,利用CreatorTerrainStudio工具建模,生成逼真的大面积地形,采用VegaPrime及其LADBM模块绘制真实场景,保证了驱动实时性,并达到了良好的仿真效果。

The modeling and real-time rendering technology of teal large area terrain database is one of the difficulties for visual system of military simulation. The key technologies were studied including Level of Detail, Virtual Texture, Texture Mapping, Dynamic Paging Strategy, Large Area Database Management. Then a solution was proposed that utilized the above technologies, and generated the large area terrain by Creator Terrain Studio and rendered the terrain using Vega Prime and LADBM. The experiment result shows perfect visual effect in the real-time environment.