编写的一个能绘制三维图形的VB源代码，基于OpenGL.使用时候，先把NTGraph3D.dll注册。再打开VB源码，就能绘制了。-Preparation of a three-dimensional graphics can draw VB source code, based on OpenGL. Use when first NTGraph3D.dll registration. Then open the VB source code, you can draw up.