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For a game project I'm working on, I want to "stitch" together several grid-like meshes:

Separate Meshes

Each mesh is sculpted starting from a regular grid to give more depth and detail to its texture. But the individual meshes have to seamlessly connect to their neighboring mesh.

Currently I'm achieving this by selecting each vertex pair and merging the vertices. Which is a lot of dull work. "Remove Doubles" with a big tolerance setting won't work because sometimes the vertices are closer to another vertex than they are to the one they should be joined with.

Can anyone think of an efficient way to join such meshes at their borders?

I'd write a python script that just sorts all selected vertices along an axis and then merges each odd+even pair, but I'm not fluent with Python or the Blender API yet :)

In the time since I asked my question, another question + answer pair has appeared that does what I originally intended to do (merge the edge loop instead of bridging it):

How to Merge Two Edge Loops

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Newer Blender releases have Bridge Edge Loops tool for exactly that purpose. Select two edge loops with exactly the same vertex count, then execute the operator. The tool is accessible through the Space menu, or Specials W menu.

There is also an addon included with Blender named LoopTools, containing Bridge tool with the same usage as Blender's built-in tool I described above.

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  • $\begingroup$ Fantastic, thank you! That's half an hour of work done with just three clicks and it comes up with sensible texture coordinates, too. $\endgroup$
    – Cygon
    Oct 19, 2013 at 14:05

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