Amazing Maya plug-in Collection: iDeform Suite
From an amazing blog site BraveRabbit , run by Kerstin Barenbrock and Ingo Clemens, I discovered an amazing suite of plug-ins for Maya:   iDisplace  - Maya Displacement Deformer    iDisplace is a deformer that   iCollide  - Maya Collision Deformer    iCollide enables artist to deform and sculpt a mesh to create "collision" effects that simulate surfaces colliding and deforming against each other -- without the usual process of setting up a simulation involving soft body or nucleus dynamics in Maya.   iSkinDeform  - Maya Mesh Deformer     iSkinDeform operates on  vertices of a skinned mesh, making possible the effect of skin sliding across muscles.