NeHe)的OpenGL教程- 二次曲面 第十八课 二次曲面是一种画复合对象的方法，这种方法通常并不需要很多的三角形。-binding for the Java language) OpenGL tutorial-conicoid 18th class conicoid painting is a composite object method, which does not usually need a lot of the triangle.

OpenGL(NeHe编著)第八课源代码-OpenGL (binding for the Java language compilation), the eighth class source code

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