You can add either Bones of Game Bones to your deformation chain by using different modes.
- Once your element is selected, select the Rigging tool in the Deformation toolbar.
- In the Tool Properties view, enable the Bone mode
or the Game Bone mode, depending on whether you're rigging for an animation project or a game —see About Deformations.
- In the Tool Properties view, enable the Automatically create a group when creating a new deformation rig option so that your deformation chains are created inside groups. Every point in a deformation chain is an individual layer, so creating deformers with this option disabled is liable to clutter your Timeline and Node view.
- Click where you want to create the root articulation of the bone structure. The root articulation should be the one that is bound to the remainder of the body. For example, for an arm, the root articulation would be its shoulder.
Click where you want the second articulation to be created.
A bone will be created between the first and second articulation.
- Click where you want the next articulation to be created.
Observe that, as you create a new point, the previous point now has a circle around it. This is the radius of the articulation, which allows you to determine how much of the drawing should be part of the articulation. Every point in a bone deformer, except for the first and the last one, has a radius.
- Click and hold the previous articulation's radius control point and adjust the articulation's radius so that it properly covers the articulation.
- Repeat this until you are finished creating the Bone chain. Make sure you build each articulation in the right order going from the root to the extremity.