what is N-poles and E-pole? I can not understand it. And i read the some blogs they said to E-poles has 5 edges and N-poles has 3 edges.



1 Answer 1


This ,and more, is on the Topology Guides site:

E-poles or Extrude poles are the most common pole type and consist of five edges intersecting at a single vertex. E-poles are most notorious for appearing when extruding faces on a mesh and for forming unwanted flat “corners” within the topology when edge loops meet or turn. E-poles are also what form concave corners in hard surface models.


N-poles or "Nose" poles are vertices that consist of three intersecting edges. This type of pole is far less common, but often appearing around poles or inset parts of a mesh. In organic modeling, this pole is often known as the “nose” pole, since N-poles are often necessary for modeling the base of the nose. N-poles are also what form the corner of a cube or most other convex corners.

  • $\begingroup$ I'm trying to understand why these poles are prefixed with E and N letters. This is what makes them so hard to remember which one is which. Why not call them 3-poles and 5-poles? An N-pole to me, sounds like it should be the name for poles with 6 or more connected edges, so that i follows the same logic for the N-prefix used in N-gons for 5+ vert polygons. $\endgroup$
    – Henrik
    Commented Jan 27, 2023 at 4:21
  • 1
    $\begingroup$ I edited my answer and gave another link. Hope this explains the terms. $\endgroup$ Commented Jan 28, 2023 at 16:39
  • $\begingroup$ @Henrik Actually you can remember it from the capital letters E and N. The simplest meshes forming these letters (completely connected) would be four vertices building an N with 3 edges, and six vertices building an E with 5 edges. $\endgroup$ Commented Jul 4 at 18:26

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