Keying fabrics are often known as green screen or blue screen material. They're used for a video production process in which a specific color, such as green or blue, are taken out of a shot in post production. Through the process of keying, the camera is essentially told not to see a certain color (e.g., blue), causing anything in the shot that is blue to appear as though it isn’t there.
This technique is also commonly referred to as Blue Screen or Green Screen Technology. Red Screen Technology is usually reserved for filming claymation. These days, though, practically any color can be used for keying. Digital keying fabric is more reflective than traditional keying fabric so it requires much less lighting, and can end up saving money on electricity, lamps and labor.
All the fabrics below are available in one or more of these keying colors: