Animation has been one of the most popular film genres since the early days of cinema. At one time these animations were based on hand-drawn cells for each frame of the film. These days, animation has largely come to be dominated by CGI, or computer-generated imagery. While some computer animation also is created frame by frame by hand (or mouse), the vast majority is made using 3-D models, which are posed across a series of frames and rendered. There are several key parts to the animation process.
