Create one-sided or two-sided slide constraints for polygons and tetrahedrons with the new Connection Model parameter options on the FEM Slide Constraint DOP node. One-sided slide constraints are very useful when you want FEM Objects to either repel (without attracting) or attract (without repelling) other objects. One-sided slide constraints also provide a really nice alternative to collision handling for FEM Objects.

Restrict the generation of links from source points to target locations with the new Filter parameters on the FEM Slide Constraint DOP and FEM Attach Constraint DOP nodes.

The FEM Slide Constraint DOP and FEM Attach Constraint DOP nodes now accept hard-constrained points as sources. This supports better constraint set-ups with FEM when you want to use animated objects as hard constrained FEM objects.

New Attach Points to Target Object shelf tool on the FEM shelf for the FEM Attach Constraint DOP constraint.

New Slide Points against Target Object shelf tool on the FEM shelf for the FEM Slide Constraint DOP constraint.

The FEM Solver DOP node now supports animated per-vertex rest positions in addition to per-point rest positions. Also, when Allow Changing Rest is turned on, the restP attribute is now recognized as both a vertex and a point attribute.

The FEM Solver DOP node now allows you to use animated rest shapes with the Stable Neo-Hookean Variant material model. You need to turn on Allow Changing Rest to be able to use feature.

The new Keep Primitives parameter on the Convert Tets SOP node allows you to keep your input primitives. This provides a simple and efficient way to attach a polygonal skin to an existing tetrahedral mesh.