A <a href="https://en.wikipedia.org/wiki/Polygon_mesh">mesh</a> is a basic version of a <see cref="T:Sandbox.Model" />, containing a set of vertices and indices which make up faces that make up a shape. <para>A set of meshes can be used to create a <see cref="T:Sandbox.Model" /> via the <see cref="T:Sandbox.ModelBuilder" /> class.</para>