Terminal Reality Inc. and Infernal Technology, LLC, as patent owner and exclusive licensee, respectively, have filed suit against Activision Blizzard (3:18-cv-01397), asserting two patents generally related to lighting and shadowing in computer graphics. The plaintiffs accuse Activision Blizzard of infringement through the use and provision of certain game engines “that are capable of performing deferred rendering, deferred shading, deferred lighting, physically based shading, and/or physically based rendering”, as well as through the provision of video games allegedly developed using those engines, including Blur, Call of Duty: Infinite Warfare, Destiny, and Skylanders: SWAP Force, among others.