Texture shining through Mesh

Armitage19

Hey

I made a picture in Gimp to better illustrate my problem.

I have a static mesh that is instanced to make a roof.
The part of the texture on the lower side is black and the upper side is red.
If I am close to the mesh, there is no problem.
But if I zoom out, there are 3 black lines shining through the mesh.
First the middle line, that's the border line where the instanced meshes are touching each other.
The other 2 lines are in the middle of the mesh and they show up later if I zoom out further.
I am doing a lot of instancing and never had a problem like that.
All other meshes wont behave like this.

Maybe, someone knows a way to fix this?

Thank you

Armitage19

Forgot to say, the problem is in Unreal!

And the mesh is not thin, its like 30cm in thickness.

Obscura

I would guess its the precision of the z buffer, but hard to tell without seeing an actual example.

Armitage19

Thanks for the answer, I used Google and found a lot of infos about Z-Buffer fighting. That didn't do it.
But, that was leading me somehow to the right solution.

When I deactivated the mipmaps for the diffuse. It stopped.
Maybe I don't have enough culling between the UV islands.
I will try that now.

Thanks!

Armitage19

Not culling between the UV islands, I mean distance between the UV islands.

Obscura

*padding

Armitage19

Yeah, u are right!
Anyway, the padding wasn't enough.
I fixed that, now its fine. 
Sorry for the stupid question!