Post Production

VFX are a series of added imagery to an animation and live-action film.
Using compositing software, such as Adobe Photoshop or After Effects,  you can create backgrounds and textures to give a realistic feel to the animation.
Other techniques in VFX include Digital effects and animation, where computer generated graphics and made and added to the film, and green-screening, in which the film or animation is recorded over a green/blue background, and then the blue/green screen is keyed in to replace with the background for the film, making it look like the characters or objects are in the scene.

An example of the Green screen effect
http://realmedia.typepad.com/real_media/2009/03/fire-and-ice-book-trailer.html

With the effects added, the CG animation can be fully rendered. The Rendering process will take a long time, as every detail in the scene will be effected by the lighting, texturing and other added features which take up the amount of memory saved in the file. Rendering may vary in 2D animation, depending on the amount of key-framing, and additional detail.
When the renders are finished, they can be taken for editing.

Editing the video and sound may be the easiest part of the pipeline, but a lot of effort and care must be put into it. The editor must ensure that the audio and visuals are synchronized correctly at the right pace, and include all the necessary sound effects in that scene. If any footage or scene makes the film slow down or make it irrelevant to the plot, then it will be removed from the final product. Added effects to the editing will include captions/subtitles and credits for the opening and closing of the film.