Visual Effects, commonly known as VFX, plays a significant role in today’s film industry. This technology enhances scenes after the movie is shot, utilizing computer software for various special effects.
VFX brings unreal situations to life, like people falling from airplanes or massive explosions. These scenes are created on computers to make them look realistic. However, many people wonder why filmmakers use green or blue screens during such shoots.
While both colors are used, green is more prevalent. The choice between green and blue relates to the camera sensor’s color filter. The camera sensor has a filter layer capable of detecting three primary colors.
The green color filter holds the most significant presence at 50 percent, followed by blue at 25 percent and red at 25 percent. This configuration mimics the human eye’s ability to detect green well. Additionally, editing software can easily recognize and remove the green screen.
The human eye is adept at recognizing green, making it a suitable choice. Editing software can then remove the green color, allowing the addition of the desired background. Using other colors complicates this process, making them less practical.
While blue screens are an option, they are more expensive due to the requirement for ample lighting. Movies like Harry Potter and Spiderman have used blue screens. The advantage of using blue is that it does not negatively impact the subject’s color.
