Abstract
A models in CG the growth such as the plants of the natural world in the mathematical principle and makes to the image is generically called form generation.There are various methods in the form generation is formed to the one and the unit changed from the unit into complex form mutually like mouth of a river Hiroshi Ichiro's and Karl Sims's works, and there is a sutdy that changes into a complex form, too. A single circle is generated in this latter standpoint this time, and a constant numberscrapes up and generates a complex form. Moreover, there is outside in the forming process lives in a final purpose to pursue modeling the mathematical principle of the form generation. In this research, the process of generation is made an algorithm as the target introduction stage, the programming is assumed to be 2-dimension animation, and the form generation process is expressed.