Computer animation can be implemented using parametric polygonal models. A parametric model consists of a set of polygons, a set of functions and a set of parameters. The position of each polygon vertex is determined as a function of one or more of the para-meters. With parametric models, animation is reduced to specifying the parameter values for each frame of a sequence. Two models are used to illustrate this concept.
Frederic I. Parke,
"Computer Animation Using Parametric Models", Proc. SPIE 0059, Simulators and Simulation II: Design, Applications and Techniques, (1 September 1975); doi: 10.1117/12.954351; https://doi.org/10.1117/12.954351