Summary
In this chapter, we covered the uses of IK and FK and how they worked. We moved on to the IK constraint and learned about the function and purpose of each part of the constraint, starting with adding the supporting pole and target bones to adjusting the chain length and pole angle.
With the knowledge from this chapter and the previous ones under your belt, you should be able to approach many rigging tasks with a solid understanding, from adding bones to weight painting and now using constraints to modify how the rig is controlled.
While the rig is currently functional, there are still many small features you can add to make this rig a brilliant piece of work!
The next chapter will cover shape keys and drivers, using bones to apply hand-sculpted effects to the mesh in ways that simple weight painting cannot achieve.