   multiple views?
  Hi,Is it possible, in OpenGL, to render different views of a 3D scene into a single window? Or, is it possible for a single project to create two or more windows? Actually I have made a simple 3D project and I like to see different views (say, front and back views) together on the screen.If it’s possible, could you please tell me how I can do it (I am a beginner) or give me reference of any books or web sites where I can learn how to do it?Cheers,Davood   
NeHe Tutorial #42 covers multiple viewports within a single window. GLUT also allows you to create 'subwindows' - tutorial.   