   Screen Size vs Vertex Coords
  I am creating a sprite class for a simple demonstration in OpenGL. How do I zoom the camera so that my bottom left is (0, 0) and my top right is (800, 600) or for that matter the resolution that we are currently running in?Any help would be appriciated.  
  I know this wont be a ton f help, but look up Orthographic Projection. It will allow you to reference vertex coords as pixel coords. ;  Specifically, look up glOrtho(), which allows you to set the coordinate values for the left, right, top and bottom of the viewport.   GolemBlender--The Gimp--Python--Lua--SDLNethack--Crawl--ADOM--Angband--Dungeondweller;  Sweet.. I found what I was looking for after referencing what you guys said. I found this as my solution...glMatrixMode(GL_PROJECTION);glLoadIdentity();glOrtho(0, m_iWidth, 0, m_iHeight, -1, 1);glViewport(0, 0, m_iWidth, m_iHeight); 