Print at Dec 17, 2025, 10:34:25 AM

Posted by Keet at Feb 23, 2024, 4:43:24 PM
Re: import 3d model to unreal engine
Aha, that might explain at little.
In 3D modeling all surfaces are created with faces between vertices and edges. Usually these faces are triangles where multiple triangles compose to a full face. For example a square side is composed of two triangle faces to fill in the side. Look at a box you exported and then imported in Blender. It will show two triangles for each side.
There's a good reason for the triangles: they are always in a single flat plane.

There are however quad faces and the wall export sometimes does have those for connected wall ends. You can fix that in Blender. Not sure exactly where the function is but you can convert all quad faces to triangle faces. This is typically a function needed for games only because they don't want to convert quads to triangles in the game. You can search for 'Blender convert quad faces' and you'll probably find lots of references, including the relation between quad faces and game development.

This might solve your complete problem, let us know!
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