I'm writing a program using Gtk and GtkGLExt. I have a drawing area
which is using OpenGL to display a scene. I receive mouse motion events
to rotate, translate, zoom, on this scene. In the display window, I
would also like to draw some primitives on top of the scene rendered by
OpenGL. For
Hi,
Are you sure it would be that hard to do in OpenGL?
In my GtkGlExt based animation app (kudu.sourceforge.net) I have to draw
a selection rectangle based on a mouse drag, which is essentially a 2D
drawing over a 3D scene (including rotations and zooming), I simply
switched to a orthographic