一种超大规模地形的实时渲染方法  

A Real-Time Rendering Method of Large Scale Terrain

作　　者：李惠[1] 翟磊[1] 林诚凯[1] 潘金贵[1] 

机构地区：[1]南京大学计算机软件新技术国家重点实验室

出　　处：《系统仿真学报》2004年第4期736-739,共4页Journal of System Simulation

摘　　要：地形的三维可视化在多个领域中有着广泛的应用。本文将地形数据分块技术、LOD技术、视锥裁减技术和ROAM算法等相结合,提出了一种解决超大规模地形数据实时渲染问题的方法。该方法可以实现足够大规模地形数据的实时连续细节层次渲染,并且利用了帧和帧之间的关联性,极大的提高了渲染速度,取得了较好的渲染效果。The 3D visualization of terrain has been widely used in various fields. In this paper, we present a method for real-time rendering of large scale terrain data, by combining together several methods such as block processing of terrain data, LOD technique, view frustum culling and ROAM method. This new method implements real-time, continuous LOD rendering, and employs frame coherence to greatly improve the rendering speed and has gained a satisfactory rendering result.

关 键 词：地形渲染 实时渲染 连续细节层次 帧相关性 ROAM算法 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]