I have been working on my game for some time and I can't figure out why these lines are showing in my generated mesh. I'm using multiple layers of perlin noise, each with a decreasing persistance and increasing level of detail. If you want more details about the actual code, I can provide, but it's pretty much the basic stuff that you find on any youtube tutorial about procedural terrain generation.
I put some screenshots below. img1, img2, img3.
Could you please point me in the right direction with this, I feel like it's something really simple but I'm somehow missing it.
What I've tried: changing the material of the terrain, changing the lighting, playing with lacunarity/ persistance/ octaves. I get slightly different results from playing with the last 3 arguments (the lines repeat less or more often) but nothing that gets close to solving the problem.