To generate the illusion of movement, a displayed picture is quickly replaced by a brand spanking new picture in a different frame. This system is identical to the way that achieves the illusion of movement in movies and on tv.
In contrast, another type of animation would be more realistic motion capture, which requires an actor wear a special suit fitted with sensors, their movements being captured by a computer and later incorporated in to the character.
In most of the methods of computer animation, an animator creates a simplified representation of the anatomy of a character, it's less difficulty to be animated. In biped or quadruped characters, lots of parts of the skeleton of the character corresponding to the bone. Animation with bones are also used to animate other things, such as facial expressions, a automobile or other object that need to provide movement.
Sometimes the purpose of animation is the computer itself, others may be another means, like a film. The designs are made with the help of design application, modeling, and at last rendering.
For 3D animations, objects are modeled in the computer (modeling) and 3D figures are joined with a virtual skeleton (bones). To generate a 3D face model the body, eyes, mouth, etc.. character and then animate animation controllers. Finally, the animation is rendered.
For 3D animations, frames must be rendered after the model is completed. For 2D vector animations, the rendering system is key to the result. For recordings taped in advance, the frames are converted to a different format or medium as a film or digital video. The frames can be rendered in actual time, while these are introduced to finish users. The animations for broadcast by the Net at low bandwidth (eg 2D Flash, X3D) use programs on the user's computer to render in real-time animation as an alternative to transmission and pre-loaded animations for high-speed links.
