三维地形是虚拟自然环境中不可缺少的因素，也是虚拟仿真领域中视景系统的重要组成部分。

Three-dimensional terrain is one of important factors of the natural scenes in virtual environment. It is also a significant composition of view system in virtual simulation field.

youdao

三维地形是虚拟自然环境中不可缺少的因素，也是虚拟仿真领域中视景系统的重要组成部分。

Three-dimensional terrain is one of important factors of the natural scenes in virtual environment. It is also a significant composition of view system in virtual simulation field.

youdao