Newbie question: Is there a convenient way to load textures that aren't square? I got to the point of drawing in ortho mode, and was thinking of doing the UI by drawing it using Pygame and rendering it as a textured quad -- but that won't work, will it? Since I'm using Python, I don't think I can use the OpenGL UI code that was posted here, and it's not clear whether a Python version of CEGUI exists yet.