Marius Silaghi released a new modifier for Autodesk 3DsMax to provide an alternative to the default modifier „Relax“ in 3DsMax which changes the apparent surface tension in a mesh by moving vertices closer to, or away from, their neighbours. The typical result is that the object gets smoother and a little smaller as the vertices move toward an averaged centre point. TopoRelax relaxes meshes while preserving their volume unlike the normal relax modifier which shrinks the mesh, so you don’t have to worry about losing the volume of your mesh.
TopoRelax generate a distributed quad mesh to get a nice and smooth mesh after using the modifier. The video below demonstrates the using of TopoRelax and also the difference with the default „Relax“ modifier.
Source and full article: mariussilaghi