It takes optical phased array(we’re not there yet at all)) or light-field display(not there in computational power yet) to do this in software. Some googles has

It takes optical phased array(we’re not there yet at all)) or light-field display(not there in computational power yet) to do this in software. Some googles has diopter correction/focus adjustment dials, but it’s not common for some reason, which I can only make assumptions, perhaps to do with motion sickness.