There are four basic types of 3D modelling: wireframe, surface, solid and 3D sculpting (or polygonal) modelling. Wireframe modelling shows only the skeletal framework of an object or character using edges and vertices. By contrast, surface modelling uses a polygonal mesh to show a 3D model’s surface texture, shading (US Site) and colour. Solid modelling goes beyond the surface and ultimately represents both the exterior and interior of the 3D-modelled object. Finally, 3D sculpting, or polygonal modelling, finishes the polygonal mesh of a 3D model with complex details and textures.