The most common way to visualize 3D objects in computers is by defining objects' surfaces as triangles or polygons. Together, these polygons create what's called a mesh. Polygonal models are the easiest to render and visualize. They can be deformed and animated more naturally — that's why most games and computer graphics applications use some variation of this method. The downside is that mesh isn't well-suited to represent volumetric objects as there is no volume inside.^[1]