Quote Originally Posted by User137
Antialiasing should be already enabled depending on OpenGL settings in your Display driver options.
Edit: Oops, may need glHint() at least with some of these: GL_POINT_SMOOTH_HINT, GL_LINE_SMOOTH_HINT, GL_POLYGON_SMOOTH_HINT

Here's something about texture filters, look for part "Texture Parameters":
http://www.nullterminator.net/gltexture.html
thanks