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原文出处：http://topic.youkuaiyun.com/t/20020801/09/915451.html   以下代码是RGB-〉HSI  和HSI-〉RGB的 代码实现    void _colour_struct::ChangedColourFromRGBStanda

为什么你应该使用OpenGL而不是DirectX? 这是一篇很意思的博文，原文链接为：http://blog.wolfire.com/2010/01/Why-you-should-use-OpenGL-and-not-DirectX 大家可以思考一下：why we choose a closed source API when the open source is equally go

原文来自:http://www.cppblog.com/zhcen/archive/2008/04/07/46420.aspx Z-Order The z-order of a window indicates the window's position in a stack of overlapping windows. This window stack is oriented along