I downloaded a low-poly gun model ".obj" online. When Imported, I discovered that the author has added weird diagonals on each face of the mesh.

enter image description here

I can remove them one-by-one but it will take whole day to do!

Is there any modifier to solve this?

  • 1
    $\begingroup$ Those are called edges and they are most likely the result of something like triangulating so Triangulate modifier won't change much. This is destructive change of the mesh geometry and there is little you can do to fix that automatically; the only way would be to select all and press Alt+J to convert tris to quads. It won't work ideally and equally for all the mesh. The flexible ways include retopologizing the mesh, i.e constructing one more with snapping on top of this one. $\endgroup$
    – Mr Zak
    Commented Jun 4, 2017 at 23:18

2 Answers 2


You might be looking for limited dissolve! All you have to do is select your mesh in edit mode and search for it in the space search bar.

Before: Before

After: After


No, I do not know of any modifier that removes diagonal lines from the mesh. You could, however delete each line manually. Or, you could use the triangulate modifier that basically adds more of those lines.

I may be wrong, but my best advice would be to manually delete the lines in the mesh, or download a different mesh.

Sorry 🙁

  • $\begingroup$ Deleting each line with hands... It gonna be headache. anyway thanks for super-instant reply :) $\endgroup$
    – Naman
    Commented Jun 4, 2017 at 23:08

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