Just a little confused as to the workflow for creating a rig for use in UE4 with engine IK. I’ve looked at the skeleton of the mannequin in game and have seen that has bones for ik setup. The rigging and animation tools for Maya do not seem to create these bones and I can not find any documentation on this. Are these bones later created in UE4 when setting up IK or do they need to be pre-existing. I looked up the mixamo FBX for UE4 skeleton and it also has the exisiting joints.
Any insight, tutes, documentation ect would be a great help.