Mesh

A mesh is the basic structure of a 3D model, built from vertices (points), edges (lines) and faces (polygons). In 3D workflows and design, the mesh topology determines how a surface behaves for modeling, texturing and rigging; meshes also often include normals and UV coordinates to control shading and texture mapping. In 3D modeling it's essential to understand meshes: you manage polygon counts, proper edge flow for animation, and use techniques like retopology and LOD (level of detail) for real‑time performance or 3D printing preparation.

Imagine creating a chair for an AR app: you start with a high‑res sculpt but need an efficient game‑ready mesh. You retopologize to get clean edge flow for deformation and reduce the face count so the chair renders smoothly on mobile hardware, while unwrapping UVs to place the fabric texture correctly. For 3D printing you would also check for manifoldness and fix non‑manifold edges; for visual design you might edit vertex normals or add loop cuts to preserve hard edges.