While I haven't played many Hideo Kojima games, he is one of my favorite developers to follow because of how much behind-the-scenes footage he shares of his process. He's posted a video to Twitter that shows a lighting workshop he did for staff at Kojima Productions two years ago, featuring Shioli Kutsuna, who plays Rainy in Death Stranding 2.
In the short video, we see Kutsuna sitting and moving her head from left to right, looking up and down. There's a blue light shining on one side of her face and a red light on the other.
