Introduction

Mesh Topology

Original: Optimal Edge Loop Reduction Flows ▪ Topology Guides

Subdivided

Hole

Original: Maya実践ハードサーフェスモデリング:プロップと背景から学ぶワークフロー P14

Pole

E-Pole (Extrude Pole)

A vertex has five edges.

N-Pole (Nose Pole)

A vertex has tree edges.

Mesh Error

Maya Help | Cleanup Options | Autodesk

• Four-sided faces
• Faces with more than four sides
• Concave faces
• Faces with holes
• Non-planar faces

https://graphics.pixar.com/opensubdiv/docs/subdivision_surfaces.html#non-manifold-topology

• Non-manifold Topology

Glossary

• Retopology
  • Recreating a flow of the mesh
  • The number of polygons may increase
• Reduction
  • Downsizing the number of the polygons
  • The flow of mesh may break down

References

1. Optimal Edge Loop Reduction Flows ▪ Topology Guides
2. Modeling Tips – OpenSubdiv
3. モデリングのトポロジについてメモ | 測度ゼロの抹茶チョコ
4. Poles in Your 3D Model – 3D Modeling Resources
5. [General] 3D Modeling | E and N Poles | 3D Gumshoe
6. modeling – Explain N-poles and E-poles? – Blender Stack Exchange
7. トポロジー [3DCG] – Site-Builder.wiki
8. Maya Help | Select an edge ring | Autodesk
9. Understanding Topology and Edge Flow in 3D Modeling – YouTube
10. Maya実践ハードサーフェスモデリング:プロップと背景から学ぶワークフロー
11. 【Blender2.9】トポロジーとは？3Dモデルの流れをイメージしよう！ | Vtuberの解剖学