In the field of 3D computer graphics, a subdivision surface (commonly shortened to SubD surface or Subsurf) is a curved surface represented by the specification of a coarser polygon mesh and produced by a recursive algorithmic method.

2025年1月10日 · The Subdivision Surface modifier (often shorten to “Subdiv”) is used to split the faces of a mesh into smaller faces, giving it a smooth appearance. It enables you to create complex smooth surfaces while modeling simple, low-vertex meshes.

As the name suggests, subdivision surfaces are fundamentally surfaces. More specifically, subdivision surfaces are piecewise parametric surfaces defined over meshes of arbitrary topology -- both concepts that will be described in the sections that follow.

Subdivision surfaces are a powerful paradigm in de ̄ning smooth, continuous, crackless surfaces from meshes with arbitrary topology. As with all other sur-faces in this chapter, subdivision surfaces also provide in ̄nite level of detail.

subdivision surfaces, especially Loop. How to construct and render subdivision surfaces from their averaging masks, evaluation masks, and tangent masks.

Subdivision surfaces are polygon mesh surfaces generated from a base mesh through an iterative process that smooths the mesh while increasing its density. Complex smooth surfaces can be derived in a reasonably predictable way from relatively simple meshes.

• How do you subdivide a teapot?

We can extend the idea of subdivision from curves to surfaces... Chaikin’s use of subdivision for curves inspired similar techniques for subdivision surfaces. using splitting and averaging steps. There are a variety of ways to subdivide a poylgon mesh.

Subdivision surfaces are remarkably similar to spline surfaces. Their distinct character reveals itself in the neighborhood of extraordinary points where n ≠ 4 quadrilateral patches join. This paper summarizes the structure of subdivision surfaces near extraordinary points.

Subdivision Surface Summary • Advantages: •Simple method for describing complex surfaces •Relatively easy to implement •Arbitrary topology •Intuitive specification •Local support •Guaranteed continuity •Multiresolution • Difficulties: •Parameterization •Intersections