The Callisto Protocol looks so lifelike, even the eyeballs are ray-traced
Striking Distance Studios wants The Callisto Protocol to look so realistic that even its characters’ eyeballs will root you in the game’s body horror.
Speaking to TechRadar Gaming at Gamescom 2022, chief technical officer Mark James said The Callisto Protocol has been developed with maximum realism in mind. The team made it a priority to create the most convincing characters possible by trying to render them at an unparalleled level of detail.
“Our characters are the most realistic characters you'll see in a game,” says James. “So much so, that when we first showed our game, everybody thought it was pre-rendered. We were like, 'No, this is how our character looks. This is how Josh [Duhamel, the actor behind the game’s main character] looks'.
“We've got a full scan, even down to ray-traced reflections for the eyeballs. So if you look into the [character’s] eyes in our game, you can see their reflected optics. It’s a really tiny detail, but it's those tiny details that actually are so important to our game.”
To create such precise optical details, the team meticulously modeled light reflections at every angle. By rotating lights around the game's character models, they could accurately recreate those bounce properties in the character’s eyes, even accounting for changes in direction and type of light source.
“Our rendering guy, Jorge Jiminez, used to send round photos of Josh and the digital render [of the game's main character], and he would get people to guess [which was which]. If people thought there was any difference, he then worked on that area. It's so important to us that that realism is in our game.”
Painstakingly rendering character eyeballs served a greater purpose than just supporting the graphical fidelity of each
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