Set 0, 0 to top left

[CaptainJester]

I am trying to set up an ortho view with 0, 0 in the top left using this code:

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GameStateManager.create();         TankGameState currentState = new TankGameState(display);         currentState.setActive(true);         GameStateManager.getInstance().attachChild(currentState);         cam = display.getRenderer().createCamera(display.getWidth(), display.getHeight());         cam.setParallelProjection( true );         cam.setFrustum( -10, 10, 0, 800, 0, 600); //        cam.setViewPort(0, 1, 1, 0); //        Vector3f loc = new Vector3f( 0.0f, 0.0f, 1.0f ); //        Vector3f left = new Vector3f( -1.0f, 0.0f, 0.0f ); //        Vector3f up = new Vector3f( 0.0f, 1.0f, 0.0f ); //        Vector3f dir = new Vector3f( 0.0f, 0f, -1.0f ); //        /** Move our camera to a correct place and orientation. */ //        cam.setFrame( loc, left, up, dir );        /** Signal that we've changed our camera's location/frustum. */         cam.update();         /** Assign the camera to this renderer. */         display.getRenderer().setCamera( cam );

I have tried to do it with setFrustrum(), setViewPort() and set the camera attributes.  None of them change anything.  0, 0 remains at the bottom left of the screen.  I tried to search to see if anyone had a similar problem, but couldn't find anything.  Can anyone tell me what I am missing?