gtkglext: gtkglext (OpenGL extension to GTK+ 2.0 or later) gtkglext: gtkglext: It provides additional GDK objects which support OpenGL rendering in gtkglext: GTK+, and GtkWidget API add-ons to make GTK+ widgets OpenGL-capable. gtkglext: Unlike Jane Loff's GtkGLArea, GtkGLExt provides a GtkWidget API which gtkglext: enables OpenGL drawing for standard and custom GTK+ widgets. gtkglext: gtkglextmm, a C++ wrapper for GtkGLExt, is also available. gtkglext: gtkglext: gtkglext: gtkglext: