Abstract
Character setup depends heavily on how the character moves. By principle, a frog is a 4-legged character therefore a 4-legged character setup should be applicable. But the movement of the frog is very unique that there should be a simplified, or rather, a special setup unique only to the frog. Normal 4-legged character setup is used on a 4-legged character which move about by walking or running. A frog, however, predominantly moves about by hopping. And at rest, the legs are bent while other 4-legged character, say, a cat, are relatively straight.

     This research will involve a study on the frog's movements and actions. The result of the study should be able to help figure out the best method to model the frog. That will require some experimentations. The next stage would be the joint structure. The research will go into Forward Kinematics and Inverse Kinematics. This stage will be vital in deciding which of the two keyframing types is suitable for a hopping character. Then, control. This will cover studies on flexor, constraints, and other type of handler such as auxiliary joints.

     At the end of this research, a special setup unique to a character of which predominant movement is hopping, like a frog, should be able to be conceived.