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What many digital animators fail to realize is that someone needs to make the software that's used to bring images to life. Without the tools, the ideas can never be materialized. In Computer Animation: Algorithms and Techniques, the concepts and formulas used behind the scenes and under the hood of contemporary animation software are clearly explained for the programmer and the technical director.

Hardbound, liberally illustrated, and with an eight-page color gallery, there are six chapters and three appendices. The book starts with an overview of animation and works through some technical background information, and then delves into interpolation and basic techniques for representing 3-D motion and space on a 2-D display. Later chapters walk through advanced algorithms (kinematics, rigid body simulation, constraints) and then a discussion of ways to represent natural phenomena. There's also a focus on modeling and animating articulated figures. It's important to note that these chapters are not about which buttons to push in a given software package, but rather about the use and explanation of formulas for representing a specific simulation.

Perhaps the best feature of the book is the information and samples available on a companion Web site. Rather than include a CD-ROM, which raises the cost of the book and whose information can grow stale, the reader can find sample animations and ready-to-use code snippets, as well as links to other relevant Web sites.