Rigging for Realistic Movement - Game Character Creation with Blender and Unity - page 190

Brush panel, you can select from a variety of brushes. The ones you will use the most
are the Add and Subtract brushes. These brushes have Radius and Strength settings
that can be changed with mouse or text inputs. The other important setting here is
the X-Mirror mode, which can be activated by selecting a check box in the Options
panel. Make sure this option is turned on as you edit.
9. With the Add brush set to low Strength and Radius values, paint the geometry at the
bottom of the coat so that it follows the zombie's thigh. Having this move with the
zombie's leg will make walk animations much more natural (Figure 7.46).

Figure 7.46
Weight-painting the
zombie's coat to fol-
low the thigh bone

10. Turn off Face Selection Mask mode. Switch to the Subtract brush and take weight
painting away from any affected geometry on the opposite side of the zombie's body.
Reduce the influence of the thigh bone from the top of the pants geometry as well,
since you do not want this geometry moving when the thigh moves (Figure 7.47).
Switch between perspective and orthogonal views to make your work easier.
11. The deformations on the thigh and coat still do not look natural. If you select the
bones in the spine, you will see that other bones have influence over the coat and
even portions of the legs. Subtract influence over the lower parts of the body from
these bones so the bones affect only their immediate areas.
12. Continue to weight-paint the leg and spine areas until you are happy with the results.
Once you are done with these bones, try your hand with other bones in the armature.
Remember to add weight painting with the Weight From Bones menu before paint-
ing by hand, as Blender will occasionally do the work for you with some portions of
the armature.