Today, the continuing development of computer animation applications is becoming increasely important not only is background but also the current state-of-the-art research. This work presents some application areas and taxonomies of available techniques. It developes a Computer Animation System for keyframe drawing and inbetween segments computer creation. The system uses a knew assemblage tecnique (named Quadro-Chave Agrupados) for motion control. The algorithm empolys as many keyframe as necessary in cach animation. The system provides an enviroment where it is easy to know how atomatic inbetween is genereted and how motion control is reached. Given the initial and final collor, the figure hue and saturation are interpolated between the keyframes, the smoothly change produces pleasant result.