四棱锥三维纹理贴图.有程序注释.使用OAK3D-Pyramid 3D texture mapping. Program notes. OAK3D

一个openGL程序，生成一个三维地形，有纹理贴图，且能随着鼠标的移动问旋转。-A openGL program, to generate a 3D terrain, a texture mapping, and along with the movement of the mouse asked rotation.

3d 贴图,保存图片成bmp，很有用的程序，利用OPENGL-3d map, save the image as bmp, very useful program, using OPENGL