基于ROAM的大规模地形渲染研究  

Research on the Large-Scale Terrain Rendering Based on ROAM

作　　者：唐先辉[1] 杨克俭[1] 

机构地区：[1]武汉理工大学计算机科学与技术学院,武汉430063

出　　处：《现代计算机》2009年第10期68-70,共3页Modern Computer

摘　　要：针对大规模地形渲染数据量过大的问题,采用ROAM算法进行多分辨率渲染,通过分块地形数据加载,可视区域定位,地形粗糙度和视点位置,对地形进行有选择的细化,提高地形的构建效率。在实时漫游中,通过强制分割和强制合并实时的调整三角网格,从而提高大规模地形帧率。To solve the problem of massive date in large-scale terrain rendering, introduces an idea of ROAM algorithm in designing muti-resolution rendering. The terrain is detailed selectively according to the blocks loading, visible range location, terrain roughness and view point position,etc. The method improves the efficiency of the terrain rendering. During its realtime roaming, it updates triangle meshes by forcing spliting and forcing merging operations, which can efficiently improve large-scale tertian to high frame rates.

关 键 词：地形渲染 ROAM算法 地形分块 可视区域定位 分割/合并 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]