本程序能够让学习者更深入的了解opengl绘制图形的基本方法，掌握三维图形的绘制是如何完成的-This procedure can allow the learner a deeper understanding of the basic opengl graphics rendering methods, master of three-dimensional graphics are drawn on how to complete the

布料的碰撞检测 以及变形 弹簧质点模型-Collision detection and deformation fabric spring mass model