How can I "grid fill" this edge loop WITH the three interior edge loops smoothly integrated in the mesh surface? The idea is that the latter afterwards are not visible as edges (i.e. smooth). The interior edge loops have exactly the same number of vertices as the side edge loops, so that shouldn't give any problems.

enter image description here

  • $\begingroup$ Grid Fill would work if you select 2 edgeloops per time (just don't select edges between them, as it will create new edgeloop instead of old one), it will be too much for it with all loops at once. $\endgroup$ – Mr Zak Dec 15 '15 at 15:02
  • $\begingroup$ I'm afraid the interior edge loops will then show up as edges in the mesh surface. $\endgroup$ – TavernSenses Dec 15 '15 at 15:17
  • $\begingroup$ If you mean that the tool would create new geometry instead of using old one, then afaik it still will use already created. Did you try to see if that suits your needs? $\endgroup$ – Mr Zak Dec 15 '15 at 15:22
  • $\begingroup$ You show it yourself in your video: there's an edge that is created in the surface. How can we get rid of that edge? $\endgroup$ – TavernSenses Dec 15 '15 at 18:01
  • $\begingroup$ I misunderstood from your question which edge are you asking about. And I'm still guessing that if you mean this edge, created between boundary loop and one of those exhisted, then you have 2 ways. 1.Before using Grid Fill dissolve vertices between edges. 2.After using Grid Fill select that loop and X > Dissolve Edges. $\endgroup$ – Mr Zak Dec 15 '15 at 18:12

As mentioned in the comments, one of way to create faces in that mesh is to use grid fill. There are other options, such as bridging them.

Using grid fill

  1. Start by selecting two pairs of edge loops and the connecting edges, as shown in the picture below.
    selection for edges
  2. Press space and search for "grid f" and choose "Grid Fill".
    grid fill

Repeat that for each pair of ledge loops, and you will have a full mesh.

animated gif

Using the bridge tool

Start by selecting all the loops except for the edges on the top and bottom.

Now simply press W and choose "Bridge Edge Loops". Change the number of cuts to match the number of vertices in between each selected edge loop (in your and my example mesh it is 3). You can find that in the operator half of the tool shelf.
enter image description here

Now you just have to fill the top and bottom parts. You can quickly do that with the F2 addon (that fastest way), or by any combination of bridging, and grid fill.

Here is an animated gif showing how I did it with bridging and the F2 addon.
animated gif

Here is the final result:
enter image description here

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