QUESTION AC car in blender problem

[_TheGamer_04]

Hello everyone, I recently started creating a car mod for fun in blender 2.93, but when I export the fbx and I open it in kseditor some part is visible only from one side, others randomly became bigger and pass trought others (like the front grid) and on the back there are 2 weird holes that there shouldn't be. In the export settings I set the scale to 0.01, and everything has a texture, so I don't know why these graphic issue are caused and on youtube or google in general I haven't found anything to help me, so I am now askng in 1st person here. Hope someone will be able to help me, thanks!

Edit: I can't upload any picture, it says that there was a security error and I don't know why, because I would update pictures of the files

 

[fughettaboutit]

"some part is visible only from one side"
thats how 3d-stuff works, if you dont have a solid part with two sides, then it is like that, a face-area has a direction
(edit mode, "Face orientation" not available in wireframe mode)

"others randomly became bigger"
then you may have to apply scaling for that part in Object mode
CTRL+A -> "Scale" or "All transforms"

 

[fughettaboutit]

about posting pictures: (copy and) paste images into your post with Ctrl+V, rather than upload, should work better

 

[_TheGamer_04]

Allright, thanks for the answer, I am new on 3d modelling and modding world so i didn't knew these things you said, tomorrow I will try one more time.

 

[fughettaboutit]

with solid part i actually mean this:

you can however have somthing DoubleSided like this too (center), which is having both sides at the same place:

 

[_TheGamer_04]

So let me know if I understood: the red color means a face which will not be visible while the blue one means a face that will be visible? Sorry for the stupid question