Applying the twisting deformation rule
Twisting deformations are usually used on any shape that has one side rotate around an axis, while another part of that mesh either does not rotate or rotates the other way. You can see the result of this twisting happening to a cylinder in Figure 3.31.
Figure 3.31 – Twisting deformation on a cylinder
Notice how the edges connecting the top and bottom vertices are slanted. To achieve this, select the top face of the cylinder and press R and Z to rotate only the top face. Notice how we rotated them along an axis in line with the vertical edges, and perpendicular to the edges going around the cylinder. That is our second deformation rule, that the axis of twisting should be in line with the edge flow.
We can also use our good old grid to test this out too. In Figure 3.32, we can see our plane properly deformed along the edges in line with the red x-axis.
Figure 3.32 – A plane...
