Is there any such GUI that runs in OpenGL, and if so can it be run in linux? More of a curiosity than anything…
What do you mean by GUI? There are many OGL programs that run under Linux, most with GUIs. I’ll assume that this is not quite what you mean?
I assume he means a OpenGL accelerated window manager. Well, Enlightenment 0.17 will be the first that I know of, except those 3D WM’s like 3dwm. Rasterman’s evas library can take advantage of OpenGL acceleration for blending, anti-aliasing, etc… I’ve played with it and it is damn quick.