During Siggraph 2017, Principal Tech Programmer from Guerilla Games, Giliam de Carpentier and Kohei Ishiyama from Kojima Productions held a presentation called Decima Engine: Advances in Lighting and AA, providing a glimpse at the fog system being developed for the upcoming Death Stranding. While the Decima Engine has in-built flexible atmospheric scattering system linked with clouds and lighting, Kojima Productions needed a system better optimized for photo-realistic rendering. They developed a model independently, where information about the sun and the sky light is supplied to the height fog model from the precomputed atmospheric scattering model. Two types of conditions were precomputed, sunny and desnse fog. Using these two as the base conditions, it’s possible to portray differ...