The tyRelax modifier is an alternative to 3ds Max’s built-in Relax modifier, that is fully multi-threaded and ideal for use on high resolution meshes.
In 3ds Max 2022 and above, 3ds Max’s native Relax modifier has been optimized and may not require tyRelax as a more-performant alternative.
Amount: the amount of laplacian relaxation to apply to connected vertices.
Iterations: the number of successive relaxation iterations to apply.
Relax all vertices: all vertices and their neighbors will be relaxed together.
Relax verts on closed edges: vertices will only be relaxed towards adjacent vertices on closed edges (edges attached to two faces).
Relax verts on open edges: vertices will only be relaxed towards adjacent vertices on open edges (edges attached to one face).
Preserve borders: vertices on open edges will not be relaxed.
Process invisible edges: when enabled, vertices connected by invisible edges will be considered adjacent. When disabled, only vertices connected by visible edges will be adjacent.
In most situations, “process invisible edges” should be left disabled.