No part of the subject being filmed or photographed may duplicate the color used as the backing. While flying, the band encounters a fierce snowstorm and Diggers wings. This technique is also referred to as color keying, colour-separation overlay ( CSO primarily by the BBC ), or by various terms for specific color-related variants such as green screen, and blue screen – chroma keying can be done with backgrounds of any color that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from most human skin colors. Legend of the Guardians was theatrically released in RealD 3D and IMAX 3D in.

The chroma keying technique is commonly used in video production and post-production.

A color range in the foreground footage is made transparent, allowing separately filmed background footage or a static image to be inserted into the scene. The technique has been used heavily in many fields to remove a background from the subject of a photo or video – particularly the newscasting, motion picture and videogame industries. Chroma key compositing, or chroma keying, is a special effects / post-production technique for compositing (layering) two images or video streams together based on color hues ( chroma range).

3d devil wings