The RENEX 3D is designed for the calculation of structures in Autodesk AutoCAD. You can choose physical units for inputs and outputs. The new entity of RENEX 3D: Ability to edit via AutoCAD; a new editing features (VER, SUB, FIR); entering the load tied with planar or rod element; a possibility of invisible support and load depending on the design; a possibility of an automatic assignment of a multilayer circuit elements physical properties (sandwiches in FYMA); a dynamic calculation (calculation of mode shapes, frequencies and participatory factors); iterative calculation of the structure flexibly supported on the ground (Soilin); a direct creation of waveforms; a direct DWG files creation with isolines on surface elements; a possibility to specify a number and a variety of values ​​for the outputs; entity dump load cases and combinations.