Now, it’s essential to make clear distinctions among the various areas of CGI, particularly when comparing it to live action, practical effects, and CGI itself. At first glance, the differentiation might appear straightforward. For example, the terms VFX and CGI are often lumped together as the same thing, yet they represent distinct concepts. Although CGI is a subset of VFX, the scope of VFX is broader, encompassing tasks like compositing matte paintings, erasing stunt cables, and artificially adding snow to scenes. CGI, in contrast, exclusively involves generating visuals using computer graphics. The question might arise: “Aren’t they essentially the same?” Consider this illustrative example from a behind-the-scenes look at Marvel’s The Avengers. Mark Ruffalo is shown wearing a motion-capture suit, the basis for the CGI Hulk model. Meanwhile, the filming takes place in a studio against a green screen, with a prop taxi labeled “New York,” indicating where VFX artists will later insert a New York streetscape. The transformation of Ruffalo into the Hulk relies on motion-capture data, which is CGI. The integration of a New York street scene behind the actors, achieved through green screen technology, exemplifies VFX’s work.