![]() For example, a character playing a floating head may be dressed entirely in blue so that only the head is composited. Naturally, it goes without saying that the characters avoid wearing clothing that matches the backdrop, unless of course, that part of the character is meant to be blurred out or dissolved into the screen. The blue or green backdrop is entirely replaced by alternate background video or CGI. Have you ever wondered why the sets are draped in blue or green instead of any other colour? Blue or green backdrops are used for shooting live action footage that is due to be composited as they are the colours believed to be the farthest away from human skin tones making it easy to fill in a background without blurring the main characters out of the screen. We’ve all seen pictures or footage of actors working in front of a completely blue or green backdrop and then seen what the final outcome is in a movie with the details filled in. ![]() Chroma key techniques and green screens are all used to shoot live action shots that are later composited to create a scene for a movie. In simple words, compositing is a process in making visual effects whereby visual elements from separate sources are combined into a single image, creating the illusion that all the different elements are a part of the same scene. Here’s looking at one such all-important aspect – Compositing. VFX has so many subsets and smaller elements that come together to produce awe-inspiring on-screen magic that we sometimes fail to acknowledge these cogs in the wheel.
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