Lightweight parts can be created by importing an STL, VRML, or faceted Catia file, or by creating a faceted solid Shrinkwrap model in LW Part file format.

Creating a faceted solid Shrinkwrap model in LW Part file format produces a new part with a facet feature. All the surfaces of this facet feature are planar and all its edges are straight. Using LW Part instead of Part as the output file format for a faceted solid Shrinkwrap model reduces the size of the resulting part.

Lightweight parts can be viewed in wireframe or shaded display style. Fast HLR, which is based on shading, is available. You can create cross sections or compute a whole-model projected area. You can select and assemble lightweight parts. Lightweight parts can be modified after creation.