OVITO allows you to generate a geometric representation of the outer and inner surfaces of an atomistic solid by constructing a polyhedral surface mesh around the particles. This does not only look nice it can also used to obtain quantitative information about the surface area and the solid volume or porosity of an atomistic structure. Triangulated surface meshes generated by OVITO also appear in the Visual elements editor, which gives you as a user quite some control over their visual appearance.
The goal of this tutorial is to show you how to generate and manipulate such a surface mesh and to render an image of a porous nanoparticle that’s half surface representation and half atomistic model as shown below.