### **Smooth** * * * * * **Description**： Smooth a mesh. We can set those points which are set as supports or loads as anchors in smooth processing to keep sharp features of the model. **Input**： Mesh: Input a welded mesh. Level: The number of smoothing iterations for mesh. Anchors: Users could set some anchors which are not soomthed though inputing indices of mesh vertices. Fixed: If this parameter is true, the boundaries of opened meshes will be set as anchors automatically. **Output**： Mesh: Output the mesh.