In this engine , we loaded some 3d data models , established 3d terrain , the construction on the ground , the numen of the secene ; made the use of shading model we realized the lighting of the scene , and made the use of the environment texturing mapping we realized the sky box , and mip - maping we realized the rendering of the 3d terrain , which gave us the ideal effect 系统中实现了载入三维模型文件，建立了三维地形、地面建筑物、场景中的精灵；使用光照明模型实现三维场景的照明效果；使用环境纹理映射技术实现大环境天空的渲染，使用mip - map纹理映射技术实现三维地形的表面纹理；得到了比较理想的渲染效果，实现了对三维场景的漫游。
