三维真实感地形生成的关键技术研究

Study on the key technology of generation of 3D realistic terrain

三维真实感地形的绘制是一个复杂且技术含量高的过程,主要包括的关键技术有:三维地形建模、三维图形变换、光照模型、纹理映射,OpenGL图形标准中包含了这些关键技术的一些算法,简化了真实感地形绘制的工作。本文主要介绍了真实感地形绘制中的一些关键技术,并且说明了在OpenGL程序中如何来实现它们。

The painting of three-dimensional(3D) realistic terrains is very complicated,which includs some key technology such as 3D terrain modeling,3D graphics transformation,illumination model and texture mapping.The OpenGL graphic standard includes some algorithms about above key technology,which simplifies the painting of 3D realistic terrain.This paper presents some key technology about the painting of 3D realistic terrain and explains how to realize them with OpenGL code.