Incremental Changes and Animations

Abstract

An animation consists of a sequence of frames. For example, to make a ball move from the left to the right, a sequence of images must be played in rapid succession, with the ball starting on the left side in the first frame and moving successively farther to the right in each successive image. The previous chapters showed how to generate a single image from a scene file. In principle, an animation can be generated by rendering a large number of such scenes, but this is not the most efficient method.