   Need help setting up Orhto View
  I'm kinda new to Ortho and what I want to do is set up an 2D openGL window, I want to use the resolution 640x480 and draw some 2D texture on it, and when I resize my window I want it all to stretch but not change position. How do I do set up glOrtho to stretch everything In my window?Thanks .   
  glViewport(0,0,width,height);glMatrixMode(GL_PROJECTION);glLoadIdentity();gluOrtho2D(...);glMatrixMode(GL_MODELVIEW);glLoadIdentity();then just use calls to glTranslatef(x,y,0); to position what you want to draw.;  Or, if you aren't keen on GLU,  glMatrixMode (GL_PROJECTION);  glOrtho (0, WIDTH, 0, HEIGHT, -1, 1);This will give you an orthographic projection with 0, 0 at bottom left. Use glTranslate as Silex mentioned.   ;  You want do 2D then you go it here Last Post about 2D in OpenGL (by DWA)Helps?   