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Green Screen Backgrounds
A lot of beginners might not know what a green screen actually is, but it is absolutely essential to learn about it before you plan to advance in the filmmaking business. Green screen is essentially a back drop which helps in making computer generated imagery that includes backgrounds, characters and various other things. The above mentioned things aren’t necessarily still, in fact they can move as well.
Choose any fantasy movie that comes to your mind, all of them have used green screen backdrops to create their fantasy worlds and characters. Green screen backgrounds aren’t just limited to movies; they are even used in television news broadcasts. The chroma key effect on green screen is widely popular among filmmakers because of its effectiveness and larger than life visuals.
Most of the weather broadcasts that you see on the television on a daily basis have computer generated imagery behind them. The news reporter stands in front of the green screen, which is digitally processed by the editors. The green screens were introduced during early 1990s. However, they have advanced significantly and it would be safe to claim that the green screens of today might be ahead of our time.
A common question asked by people regarding green screen is “why is green the only colour used for these backdrops, why can’t any other colour work?” Well the simple answer to this question is that some production companies do in fact use different colour backdrops to create computer generated imagery. But they aren’t as effective as green screen backdrops. This is because of contrast, as normally the objects placed in front of green screens aren’t usually green in colour.
If something green, like plants, is placed in front of a green screen backdrop, it would become virtually impossible to create the contrast between them during editing. Same goes for backdrops of any other colour.
Following are some key features of green screen backgrounds
- They can be washed in a machine and are extremely durable
- They are mostly made out of non-woven fabrics
- Green screen backgrounds can be used for video as well as photo shoots
Chroma key is a process that creates background on your green screens. It can not only add colour, but also replicate real life images. No editing process is complete without the chroma key green screen as it is the meat and potatoes of the whole process.
However, there are other numerous factors that have to be considered before chroma key green screen can take effect. Lighting is the most important factor among all of these. As without proper lighting, the visual effect creators and editors will find it extremely tough to colour grade.
All in all, green screens are a must-have for every filmmaker, as they provide endless versatility and numerous options that one normally wouldn’t have.