Can anybody give me a hint whether it is possible to merge neighbouring faces of the model which edges are not straight? I've made in photoscan 3d model of a few sculptures. Program is good but I wanted to add a base for it and refine it a bit in Blender.

Edges of the surface look more like a saw than a straight line, thereforeI'd like to ask whether ther is a possibility of merging faces extruded from such edges into one face (or at least smaller number of faces). If yes - how to do that?

This is how the edges are aligned: enter image description here

I was going to clean it up and download on Sketchfab to give others chance to see it. This is purely for display - not for 3d print.

Thanks in advance!

  • 2
    $\begingroup$ Could you provide a screenshot? $\endgroup$
    – JakeD
    Commented Sep 5, 2016 at 12:28
  • 1
    $\begingroup$ As always, it depends entirely on the purpose of your model (still render, animation, 3D game asset, printing). So without knowing more, my answer would be "Well, yes - maybe, but no." $\endgroup$ Commented Sep 5, 2016 at 12:57
  • $\begingroup$ Pycoder - You can find the screenshot in the edited question. Methapor - I am aware that it is not simple :) Thanks for pointing this down. To be more specific: model is going to be uploaded on Sketchfab. I do not have any plans to print it or use in a game. I am looking for a possibility to simplify and refine a model for more smooth display via web browsers $\endgroup$
    – Conrad
    Commented Sep 5, 2016 at 14:24
  • $\begingroup$ I would advise against merging selected faces on the screenshot as that would create an awful Ngon in the bottom of the mesh which might provide you with just unexpected surprises like unsupported Ngons for any other application or strange shading artifacts. There aren't that many faces at least compared with the print itself. $\endgroup$
    – Mr Zak
    Commented Feb 9, 2017 at 13:35

1 Answer 1


First, you have to select all the edges of the faces in question. The image below illustrates how to select edge loops

Select appropriate edge loops

Then, scale those edges down to 0 along the appropriate World axis. In this case, S - Y - 0.

Scale edges

Finally, select all the faces between those edges, go to the Tool Shelf (T) and select Delete--> Limited Dissolve

Limited Dissolve

The result will be one face


I hope the above makes sense ;)

  • $\begingroup$ Thanks Thistle. It works. It did not merge all faces into one - geometry of the edges is way to complex I suppose - but significantly reduced its amount. And finally they're aligned properly! :) $\endgroup$
    – Conrad
    Commented Sep 7, 2016 at 6:49
  • $\begingroup$ Great! I'm glad you've worked it out. $\endgroup$
    – user30146
    Commented Sep 7, 2016 at 18:28

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