Perspective scrolling background

I’m not sure exactly how this is called, I’m talking about that kind of background, where your character is supposed to walk towards the center of your screen to the horizon, while in reality he is standing still and the background fades…

Something in the logic of the old Outrun game
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Does anybody know how this is done? I don’t really know exactly how it called to look it up…

I suppose it really is just a 3D background and the camera moves behind the 2D character?