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透视投影错了，main函数里输入的zNear和zFar都是正值，透视投影的n和f是负值，令n = -zNear, f = -zFar再代入计算，而且你再检查下你那个正视投影矩阵正确吗？
修正后，你应该还会遇到三角形绘制顺序颠倒的问题，参考下面的回答
https://games-cn.org/forums/topic/guanyuzuoye2lianggesanjiaoxingzhongdiebufendez-bufferwenti/
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