9 Computer software tool for the filmmaking and film postproduction, namely a virtual production kit enabling the real-time rendering and integration of digital assets, namely virtual objects, into films, and enabling the real-time rendering and integration of computer-generated imagery, virtual, mixed and augmented reality content for use in TV, film, online, mobile, gaming, entertainment, music, advertising, commercial and digital multimedia production; computer software for real time visual effects, virtual reality immersion and augmented reality for use in TV, film, video game and digital media production; game engine software for real time video game development and operation and computer software for the visualization, manipulating, real time tracking, real time rendering, calibrating and adapting of digital assets, namely, virtual objects, real time integration and composite of computer generated objects; film and video cameras for use in the production of TV programs, films, advertisements, video game, mobile, music and digital multimedia content; camera trackers in the nature of a computer software for adding three-dimensional elements to camera footage; virtual reality headsets; augmented reality headsets and mobile computing devices, namely smartphones, tablets, laptop computers