«And, as Ricky was pointing out before, we've completely revamped our facial animation systems — the best way to explain is to
say, well... the previous Uncharted games, and in The Last Of Us, the characters all had about 90 to 100 «bones» in their faces which we used to moved the meshes around» — think about that, about how detailed Joel and Ellie's
pained facial
expressions were, how well the game captured the respective actors» — Troy Baker and Ashley Johnson — seminal roles.