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I am trying to develop a small dungeon. My idea to to generate it programmatically and refine it by hand. Floors and walls are all cubes.

This is the file. I want to do two things:

  1. Merge Wall_1_Room04 with Wall_1_Room05
  2. Merge the wall obtained in the previous step with Wall_7_Room04

I looked for a solution, but I was not able to find it. So I have a few questions for you:

  • Is is possible to do it? If yes, how?
  • Is the fact that every Wall has a child cube a limitation?
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  • $\begingroup$ Do you want to that programmatically too? Or by hand? $\endgroup$ – gandalf3 Oct 16 '14 at 20:45
  • $\begingroup$ I think about enhancing by hand the model $\endgroup$ – Ottavio Campana Oct 16 '14 at 21:19
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What you need to do is select Wall_1_Room04, then select Wall_1_Room05. once they are both selected, with Wall_1_Room05 being the active object press Ctrl+J. This will join the walls, the origin will be at the location of Wall_1_Room05's previous origin.

After that, tab into edit mode, select all and press Ctrl+V > Remove doubles. repeat the process for Wall_7_Room_04.

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  • $\begingroup$ Note that it won't quite be that simple for wall_7_room_04, as there is no geometry to merge on the inside corner. You'll have to add a quick loopcut there first. $\endgroup$ – gandalf3 Oct 16 '14 at 20:49
  • $\begingroup$ Thanks there, i think it worked for me though. Here's the .blend: pasteall.org/blend/32169 $\endgroup$ – Scalia Oct 16 '14 at 20:51
  • $\begingroup$ Look closely at the intersection at the corner, they aren't really merged.. (non-manifold geometry and intersecting faces). Also that wall isn't wall_7_room_04 ;) $\endgroup$ – gandalf3 Oct 16 '14 at 20:55
  • $\begingroup$ I see. if I hadn't removed doubles it would have been easier to fix. and it would be the same basic procedure for the correct wall, right? $\endgroup$ – Scalia Oct 16 '14 at 20:58
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    $\begingroup$ Use Ctrl+R to add a loopcut, basically a 'belt' of edges that goes around your object to add extra geometry. $\endgroup$ – Scalia Oct 16 '14 at 22:20
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Join those 3 walls together, select their inner faces, delete vertices, select all, remove doubles, select all and solidify.

Video Link

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    $\begingroup$ Seriously guys, stop down voting him. JuhaW, try to add more detail, even if it takes longer. $\endgroup$ – Scalia Oct 16 '14 at 23:36
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    $\begingroup$ We like to have more detailed answers here, try to add detail on how to do things too. Links to a external video are a good bonus, but shouldn't be relied upon as the core of the answer in case the link goes away in the future. $\endgroup$ – gandalf3 Oct 17 '14 at 6:59

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