RIGGING METHOD FOR LEG MOVEMENT OF 4-FOOT DIGIT CREATURE APPLYING TO DIGITAL GAME IMAGE

摘要

The present invention provides a method for realizing the leg movements of a four-foot digit creature applicable to a digital game image. According to the present invention, the method provides a joint structure and a joint movement means, which is capable of modeling the kinematic structure of leg movements, not the anatomy of legs, with computer graphics (CG) to express the leg movements of a four-foot digit creature with realistic CG, especially being applicable to a digital game image effectively. According to the present invention, the method comprises: a leg modeling step for generating a plurality of pieces corresponding to leg bones of a four-foot digital creature and a plurality of joints corresponding to the leg joints of the digital creature to model the legs of the four-foot digital creature; a leg movement modeling step for generating IK handles for connecting joints selected among the joints and controlling the movements of the joints selected among the joints with an aim constrain function of a 3D modeling program; and a leg movement realizing step for allowing a worker to induce the leg movements of the four-foot digital creature while handling the IK handles. [Reference numerals] (AA) Leg modeling step;(BB) Leg movement modeling step;(CC) Leg movement realizing step;(DD) Main IK handle generation;(EE) Secondary IK handle generation;(FF) Joint aim constrain;(GG) First joint;(HH) Third joint;(II) Second joint