Inverse Kinematics Animation also known as IK Animation, it is the processed method in 3D Animation that consist on positioning the ending limb of an articulated “chain” to obtain an automatic pose or articulation of the whole chain. Inverse kinematics is based on the following principles: 1. Joints are constrained with specific positional and rotational properties. 2. Position and orientation of parent objects is determined by the position and orientation of child objects.