What is the role of vertices in a mesh?

Vertices play a crucial role in defining the structure of a mesh by representing specific points in 3D space. Each vertex contains coordinate information that indicates its position in relation to the coordinate system used by the 3D graphics engine. This positional data is essential because it forms the foundation upon which a mesh is built. The connection of these points through edges creates faces and shapes that make up the visual representation of objects in a 3D environment.

While edges are defined by the connections between vertices, and colors or textures are applied to the faces formed by these vertices, the primary function of vertices is to act as the fundamental building blocks of the mesh's geometry. Thus, their role is foundational to creating and manipulating 3D models within Unity and other 3D software.