Ok, so I want to make a HUD that is interactive. For instance, the user moves the main camera, but perhaps when holding down the "shift" key (or something) can then edit the controls on the HUD.
Check out this image: Fractscape
That picture describes almost exactly what I want to accomplish. I'll be needing some custom controls to allow the user to create the terrain (but this has nothing to do with fractals). But I can start with simple sliders for now.
Is it just a matter of using game interface elements?