When you learn to create 2D representations of 3D objects on the screen, think of the 3D topology as a wireframe of an object. The wireframe, which is called “mesh” in 3D software, consists of a hundred or a thousand simple geometric shapes. The term “topology” refers to the geometric surface properties of the mesh. Each geometric surface on the mesh is a “surface”. The wireframe is the basis of 3D modeling, which eventually leads to three-dimensional digital animations.
Wireframe properties of a good topology.
A wireframe contains many polygons, nodes (the point where three or more edges meet), edges that are lines consisting of two nodes, arcs, curves, and circles that all form surfaces in the wireframe design. In computer-generated 3D topology, the goal is to have enough details in the wireframe while keeping the number of surfaces as small as possible to accomplish the task. In areas where the 3D model is intended to be bent or moved, the number of polygons is usually increased to allow distortion-free movement. Elsewhere, fewer polygons are required. This is an important concept when modeling 3D animations. The enlarged polygonal surfaces in areas of a 3D model that experience the greatest deformation during animation, such as joints, facial features, and moving parts, are important for realistic motion.
3D modelers strive for a clean topology, typically illustrated by a 3D mesh with efficient polygon distribution, the correct placement of edge loops, and clean, precise wrinkles that minimize strain and deformation.
Tips for beginners on topology and 3D modeling.