Authoring Tools Framework (ATF) is a set of C#/.NET components for making tools on Windows®. ATF has been used by most Sony Computer Entertainment first party game studios to make many custom tools such as Naughty Dog's level editor and shader editor for The Last of Us™, Guerrilla Game's sequence editor for Killzone™ games (including the Killzone: Shadow Fall™ PS4™ launch title), an animation blen