Usage patterns
〈物〉にリアリティがあるfor something to have a sense of realism
This movie has a real sense of realism.
〈物〉にリアリティを持たせるto give something a sense of realism
He researched on-site to give his performance a sense of realism.
〈物〉のリアリティを追求するto pursue realism in something
That director is pursuing realism in his visuals.