BLUE SCREEN VS. GREEN SCREEN FOR VFX
BLUE SCREEN VS. GREEN SCREEN.
THE COLOR OF THE CINEMA.
If you’ve ever watched a behind-the-scenes specific for a Hollywood blockbuster, you’ve likely viewed actors performing in front of a green or blue background. But you don’t have to be an expert filmmaker to revel in the benefits of a blue or green screen. Even if you’re a beginner shooting a short movie on your outside or a YouTuber making a tutorial video, putting something as easy as a green or blue sheet in the background of a shot gives you the strength to add amazing VFX at some point of the post-production process by way of the usage of a technique known as chroma key compositing.
“In the historical days with film, blue made it much less challenging to key things. With digital cameras, green is greater popular,” says filmmaker Charles Yeager. “But even in present films they nevertheless use blue screens for specific reasons.”
WHAT IS THE CHROMA KEY?
WHICH SCREEN COLOR IS BEST?
One key element is luminance or the quantity of light a color reflects. A green background has a whole lot greater luminosity than a blue one, making a green screen a higher desire for daylight scenes when you prefer your shots to appear vibrant and nicely lit. But a blue screen can be available in scenes where you don’t want so lots light.
“If you’re trying to composite round an actor in an hour of darkness scene, you choose to go with a blue screen,” Yeager recommends. “It’s darker, so it’ll replicate much less light back on them, which means much less color spill to deal with in post-production. The color spill is when the color of the chroma key background is reflected and returned to the actor. This can make the keying method extra difficult, so you prefer to keep away from the color spill as much as you can.”
Because blue screens have decreased luminance, there’s much less chance of color spill around the edges of your actors. If you’re filming a shot at the place the actor and the chroma key background are close together, use a blue screen as it will assist ensure the color spill will be a lot less.
Whether you’re making a sci-fi epic or a quiet indie character study, the proper color of the backdrop coupled with chroma key technology can free up a new world of possibilities for your film.