boundary representation

Boundary representation (B-rep) is a method used in 3D modeling to define objects by their surfaces. It describes the shape through the object's outer shell—its faces, edges, and vertices—without detailing the interior. Think of it like a detailed wireframe outlining the shape's boundaries. This approach helps computers store, visualize, and analyze complex objects efficiently, especially in engineering and manufacturing. B-rep is essential for accurate modeling because it captures the exact shape and features of an object’s exterior, enabling precise simulations, manufacturing, and modifications.