Why can't I create edge loops inside of my mesh

Question

The edge loops do not go on the inside of the cube wall. I made the wall from a cube following a floor plan. I tried using the knife tool but the edges it generated were not able to be selected. What is a solution to this. The walls all have 4 vertices and are not n-gons.

Thanks

Blend File: https://drive.google.com/file/d/1Ktpjiulkh9Ij2qSE3IGn35xmdYjVs1Ur/view?usp=sharing

If you look, the wall that is unaffected by the loop cut is an n-gon - there are two cuts on the top that don't come down the front side, leaving 2 extra vertices.. — Christopher Bennett, Feb 28 '21 at 20:25
I tried to check that, but from looking at it below, it appears to have 4 vertices, I can add my blend file aswell if you need it. — Hamza, Feb 28 '21 at 20:30
https://blender.stackexchange.com/questions/17870/loop-cut-wont-go-all-the-way-around — Duarte Farrajota Ramos, Feb 28 '21 at 22:39

score 1 · Answer 1 · answered Feb 28 '21 at 20:34

1

Here's the problem:

Loop cut only works on quads, but inner wall face has some extra verts. I assume you have a window or something on the other side.

You could fix your topology by having those loops continue all the way around. You usually want most of the mesh to be quads, exectly to not encounter problems such as this.

answered Feb 28 '21 at 20:34

prok_8

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Makes sense, how would I do that though (continue loops)? I tried using the knife tool, but that wouldn't work for me. – Hamza Feb 28 '21 at 20:36
Can you not finish the loops for the highlighted verts? Using knife tool is probably the best option. If that's not working, delete the face, subdivide the bottom edge to add 2 extra verts, then manualy create 3 faces for the inside wall. – prok_8 Feb 28 '21 at 20:43
Thank you, I just deleted the 'cube' wall structure and then extruded it from the surrounding walls and the loop cuts now work correctly. – Hamza Feb 28 '21 at 20:51

Why can't I create edge loops inside of my mesh

1 Answers1