The calculations involved in performing a desired manipulation (forward kinematics) are also usually more difficult and can lead to multiple solutions.

The skeleton works with inverse and forward kinematics and makes it easier to animate characters.

A rig is generally composed of both forward kinematics and inverse kinematics parts that may interact with each other.

The animation component has features such as reverse and forward kinematics for character animation, particle systems and dynamics.

First, forward kinematics determine the position of the robot's geometry, and collision detection tests if the robot's geometry collides with the environment's geometry.

Think of forward kinematics (FK) like a toy robot arm: to get the finger tip to a desired position, you move down the bone chain, rotating and translating joints until the tip of the finger is in the right spot.