I posted this question few day ago but there was problem with my post (I can’t read that) so I post it again.
In my code, I use the extension GL_EXT_texture3D. However, GLEW told me that I don’t have that one on Mac. After checking the documents from Apple website, I saw that this extension was supported in OpenGL 1.2 implementation but then it went away. What changes should I make to use 3D texture?