   help with simple bitmap buttons
  Hi, I have a scene which consists of a simply cub which I can rotate around using glulookat. I would like to be able to have a button (a bitmap or something) at the top right hand corner of the screen which I can click on. I''m not too worried about the clicking part but I have no idea how to stop the button moving with the scene. Help!!! Thanks   <Fish>{ 
  Use an orthogonal projection to render the button. Nehe has a tutorial on it somewhere. ;  Or simply try something like this:glPushMatrix(); //stores the current "camera" position.."Draw Cube";glPopMatrix(); //restore the last saved "camera" position"Draw Button";Note that this will make the button have perspective, to use a bitmap efficiently use orthographic projection while drawing the button/s. Cheers! 