When you add a Deform Mesh node, the deformation mesh appears over the 3D model or surface. You can view the source mesh, the destination mesh, or both, to assist you as you deform the object. You can also turn both meshes off to view only the deformed object.
The deformation mesh consists of lattices and cells. You can divide the mesh into 1 to 100 lattices (to form a 3D grid of vertices), and each lattice can be divided by 1 to 3 cells. Increase the number of cells and lattices to deform specific areas of the object.
To add a deformation mesh:
The deformation mesh is added to the selected object.
Image courtesy of Quietman
If you do not see the deformation mesh, follow the next steps.
The Deform Mesh menu appears.