I know WPF is one of good 3D GUI engine, but I want to know other good 3D GUI engines?
XNA comes with a 3D GUI engine. It is targeted for games, but it may be used for other purposes as well.
Flash Player 10 allows any GUI to be rotated and scaled in 3D.
For Linux there is Compiz Fusion which is an X11 implementation on top of OpenGL. I believe the GUI system in MacOSX and iPhone is OpenGL based (Quartz).
If you are referring to GUI frameworks that support 3D I think most will, ie from FLTK to Qt.
I have done some Papervision3D on Flash / ActionScript.
And it is awesome!
Flex is a direct competitor to WPF.
来源：https://stackoverflow.com/questions/575646/the-good-3d-gui-engine