Realism is often juxtaposed to constructivism. Constructivist reductions take far more advantage of cues.  Another way of looking at this is realist models tend to leave the perceiver out.  The self that is dealing with the model is not part of the model.  Constructivist reductions in cues make explicit recognition of the perceiver.  The self is imbedded in the model.   There’s a tension here.