3D的技术支持是3D的API。OpenGL实际上就是一种3D程序接口（即我们常说的3D API），它是3D加速卡硬件和3D图形应用程序之间一座非常重要的沟通桥梁。-3D' s technical support is 3D-API. OpenGL is actually a 3D program interface (that is, we often talk about 3D API), which is a 3D accelerator hardware and 3D graphic