Which component of a 3D model is defined by vertices and edges?

Which component of a 3D model is defined by vertices and edges?

• A. NURBS
• B. Voxel
• C. Mesh
• D. Point Cloud

Answer: (C)

A mesh is defined by its vertices and edges, which establish the model’s topology and how the surface is connected. Vertices are points in 3D space, and edges link those points to form faces, typically triangles or quads, creating the visible surface of the object. This explicit network of connectivity lets you control shape, apply subdivision, sculpt detail, and texture the surface. In contrast, NURBS use control points and mathematical curves to define smooth surfaces, voxel data describe a grid of volume elements, and a point cloud is just a set of points with no inherent connectivity. So the component built directly from vertices and edges is the mesh.

A mesh is defined by its vertices and edges, which establish the model’s topology and how the surface is connected. Vertices are points in 3D space, and edges link those points to form faces, typically triangles or quads, creating the visible surface of the object. This explicit network of connectivity lets you control shape, apply subdivision, sculpt detail, and texture the surface. In contrast, NURBS use control points and mathematical curves to define smooth surfaces, voxel data describe a grid of volume elements, and a point cloud is just a set of points with no inherent connectivity. So the component built directly from vertices and edges is the mesh.