So i made a very big house on blender, without any texture, without any lighting, just the walls. And i exported it to UE5 as a FBX. But there were a lot of walls missing, actually a lot of wall faces, some of them were visible if you look from the left, and some of them isn’t invisible if you look from another angle.
Does it have to do with my broke building skills on blender, or something else?
In blender click on the down arrow next to Viewport overlay icon(top right corner on the 3D view), then click on the “Face Orientation” check box. After that you will see your model in blue and red. Red means you see the back side of the face, if you see the red faces in Unreal Engine you will see thrugh them. Usualy there is a few step that can fix your mesh automaticly. Select your mesh in Object mode → ctrl+A → rotation and scale. If it’s not fixing all you normals probleme, go to edit mode, hit A to select all of the face, then Shift+N it will recalculate your face normals. Most of the cases it will fix all the faces, if not, select the bad faces, and hit shift+N, and in the bottom left corner check the “inside” check box. In the future, don’t forget, the first step(ctrl+A ->rotation and scale) before export, because the exporter automaticaly applying the rotain and scale, and in Unreal Engine, the result will be bad even if the normals looks good in Blender.
This actually worked!! I just made everything blue, actually not everything. Some of them were like, bugged or something. but i just fixed that by placing a new wall.
And everything was looking great in Unreal engine aswell.
Thank you alot!!