Polygon modeling is a technique used in 3D computer graphics to create shapes and objects. It involves using polygons, which are flat shapes with straight sides, typically triangles or quadrilaterals, to build complex models. Artists manipulate these polygons to define the surface of an object, allowing for detailed and realistic representations. This method is widely used in various fields, including video game design, animation, and virtual reality. By adjusting the vertices, edges, and faces of the polygons, creators can achieve intricate designs and textures, making it a fundamental skill in digital art and design.