Is there a standard/offical gtk+ opengl library for game programming?

[Zhang Yang <marship 126 com>]

I want to program a game for linux desktop. I want to use gtk+ so I need
a opengl libray to corporate with gtk+. I googled and found gtkgl,
GtkGLExt,OGLTK and SDL can be used. 

Which one should I use? And another question.Is there a 3d design tool I
can use under linux? like 3dMax under windows?


Thank you!