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Hi have a mesh where each internal vertex has 6 neighbours. However there's a hole in the mesh I'd like to fill by creating a new vertex and then join the 6 closest neighbours, see picture below. Any suggestion how I can do that?

Basically I want to pass from a situation where I have the stuff in the red circle to a connectivity like the one highlighted in green.

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2 Answers 2

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Fill and Poke

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  • Select the perimeter vertices (or edges) of the hole.

  • Fill with an ngon F

  • Poke the ngon ⎇ Alt P
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To start off, select the perimeter of your hole with the edge select tool and move your cursor to it by pressing Shift+S and selecting "Cursor to Active".

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Next you should select a similar set of triangles that will fill the hole:

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Next press Shift+D to duplicate the faces and move them somewhere so you don't have overlapping vertices:

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Next, while you have your replacement faces selected, and your 3D cursor in where it should be, Press Shift+S again and select "Selection to cursor (Offset)".

Finally, after you have everything in place, select the whole mesh with A and then press W to bring up the Specials menu and "Remove doubles".

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If it doesn't remove any vertices, try turning up the "Merge Distance" value a little bit.

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    $\begingroup$ Alternatively: After you select the edges fill (F) will make an ngon face which can be poked $\endgroup$
    – batFINGER
    Commented Sep 18, 2018 at 10:11
  • $\begingroup$ True, there are faster ways, but this method can be really easily scaled and has methods that can be used in other situations. $\endgroup$
    – kanuki
    Commented Sep 18, 2018 at 10:14

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