• How Green Screen Worked Before Computers
    Articles,  Blog

    How Green Screen Worked Before Computers

    These days, green screen is easy. You get your lighting right, you point a camera at someone, and then you click a few buttons and tweak a few settings in your graphics software, and there you go. Perfect. But how did they do this sort of compositing before computers? Well, there are two answers to that. One for film, and one for video. And before anyone gets pedantic: I’m summarising here, and skipping over some early efforts and dead ends, but first, let’s talk about film. Actual, bulky reels of film. You’ve got no pixels to deal with there: it’s all chemical processes, all light hitting bits of photosensitive real…