NB的效果,OpenGL实现的翻页效果,附有中文注释-The effect of NB OpenGL to achieve flip effect, accompanied by Chinese translations

一种比较仿真的翻页效果，平滑翻和从边角翻都支持，pdf，图片等格式-Comparison of simulation results of a flip, smooth turn and turned from the corner support, pdf, pictures and other formats