look very bad, I’ve seen it many times but noway to fix it.
It looks like intersecting meshes. Don’t overlap them, is the solution. 
no, it just a texture, mesh only have a plane.
seems this happen to some texture which pattern very close.
when i try to change texture resolution to very low, it can solve it. but this make texture very blur.
Overlapping planes
not overlapping.
i think this is Moire pattern.
i don’t understand this, seems this is common issue.
Can you do a better pic? ( or can you upload the texture here? )
Yup, nothing you can do about it
You can change anti aliasing method, which will stop it jumping around, but it will still look rubbish.
Answer is, don’t use lines like that
OR: Put them further apart, or put the camera higher up.
