Is it possible to rander antialiased text inside a glarea? If so, how?
I have a PyGtk + GtkGLext program which currently uses pango fonts:
glEnable(GL_POINT_SMOOTH)
glEnable(GL_LINE_SMOOTH)
glEnable(GL_POLYGON_SMOOTH)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE)
...
self.__font_string = 'courier bold 14'
self.__font_list_base = glGenLists(128)
self.__font_desc = pango.FontDescription(self.__font_string)
self.__font = gtk.gdkgl.font_use_pango_font(self.__font_desc, 0, 128,
self.__font_list_base)
...
glRasterPos2f(-10.0, 6.0)
glListBase(self.__font_list_base)
glCallLists(node.label)
However, using this approach the fonts are not rendered with
antialiasing (presumably because of the list rasterization).
I have experimented with calling gdk_draw_text(...) directly, but (a)
the text is still blocky; (b) the text flickers despite my tinkering
with _GLArea__expose_event to alter the double buffer swapping; and (c)
I must additionally transform OpenGL co-ordinates into window
co-ordinates.
The text in the widgets surrounding the glarea is all antialiased by
default, which only serves to highlight the blocky text inside the
glarea.
Before I waste any more time on this, can someone point me in the right
direction.
Thanks in advance,
Matt
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