Extreme character detail
As with all character-driven stories, the devil’s in the detail. That’s why we created each character with a whopping 40,000 vertices. This is an extraordinarily high polycount for characters, even by current-gen console and PC game standards. Each character’s face and body have multiple 2048x2048 textures for skin color, reflectivity, normal maps, etc.
Did you notice the characters’ skin? We achieved exceptional realism by implementing sub-surface scattering (SSS) skin shaders which blur incoming lighting in screen-space, a process also known as screen space diffusion. We took a lot of what we learned in The Butterfly Effect and optimized it for mobile GPUs.