Computer Animation Complete

Chapter 7 Animating Fluids and Gases

Rick Parent

Among the most difficult graphical objects to model and animate are those that are not defined by a static, rigid, topologically simple structure. Many of these complex forms are found in nature. They present especially difficult challenges for those intent on controlling their motion. In some cases, special models of a specific phenomenon will suffice. We begin the chapter presenting special models for water, clouds, and fire that approximate their behavior under certain conditions. These models identify salient characteristics of the phenomena and attempt to model those characteristics explicitly. Such approaches are useful for a specific appearance or motion, but for a more robust model, ...