The optiSLang 3D Postprocessing Add-on helps Ansys Mechanical to interact with optiSLang 3D Postprocessing. It enables the use of empirical and free-form random field models to generate random geometric imperfections and apply displacements to the nodes on a part of the model's boundary. It also allows export of results to optiSLang 3D Postprocessing for statistical analysis and Field-MOP creation. For more information about this add-on, see Getting Started with oSP3D.