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Alright, allow me to specify. There is an add-on in Blender named Archimesh. It allows you to create rooms, including walls. You can add depth to those walls.

Previously, putting in windows meant cutting the holes into the walls you made with Archimesh. At the current time, I was unable to find out how. Now, Archimesh has a feature to fix that: Auto-holes. The windows spawn with a bound box. That bound box acts as the cookie cutter for the walls. This works wonders, except for a tiny problem I ran into:

I am not sure if this applies to a point before adding depth to the walls or even after, but if you check edit mode, you will notice you are unable to even touch the part of the wall created with the depth slider, though the initial wall is fine. This was not a problem until I added a few windows, but then I checked edit mode to make sure the topology was correct. Much like last time, I was right: It was not. Last time, I did not ask about this here. This time, I am:

Is there any way to edit the topology or somehow interact with it in order to?

Maybe I have to finalize it, but I have no idea how to.

This is about editing the topology of the wall where the topology goes wrong. (See inset below; images not embedded for sake of readability and remaining concise.)

Seems fine in Object and edit mode.: http://imgur.com/tTzYiGW ...until I turn on the x-ray vision.: http://imgur.com/Sy2ZJRO

If this keeps up, auto-holes will stop working properly, as sooner or later, the cuts are bound to fail in some way, much like it did, last time I recall.

Is there any way to fix the topology here? I fear I will have to be very careful with how many windows I put into the building wall.

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  • $\begingroup$ As far as I know those type of addons rely on Boolean Operations, Booleans invariably produce bad topology, errors, and lots of geometry or shading issues. Want proper topology model it by hand, want to do it fast use an addon at the expense of mesh quality $\endgroup$ – Duarte Farrajota Ramos Apr 18 '17 at 0:12
  • $\begingroup$ ...In that case, I intend to test out the ability to automatically carve holes into hand-made walls. That way, I can give it as many faces as it needs to avoid bad topology, then Limited Dissolve it when I am done. I will return here with the results, thanks. $\endgroup$ – Darknaviexe Apr 18 '17 at 14:21
  • $\begingroup$ Okay, I have a solution, I am not sure if this counts as an answer, much less meaningful since Archimesh can do most of this, but I hope it works: If you create a wall from scratch, then add a Rail Window out of Archimesh, you can use the bound box to subtract from the wall. The only reason this is suggested is because you can edit the whole wall, that way, subdividing it completely in order to avoid bad topology. $\endgroup$ – Darknaviexe Apr 20 '17 at 15:27

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