Diagonal lines across texture when viewed from afar

I have a camera with Field of View set to 5 and then zoomed out really far so that my scene will appear flattened as if the camera was orthographic while retaining certain aspects of perspective. Unfortunately, when the camera is pulled out this far, the floor tile texture has diagonal lines running across it. I pulled the camera in and changed the Field of View to 40 illustrate this difference.
with line problem


without

I have messed around with filtering and mipmaps, but I can’t seem to figure out how to make these lines go away.
Thanks in advance if anyone knows what is causing this.

Maybe self shadowing artifacts due to the numerical precision with this kind of setup.

Try disabling cast/receive shadows on the object.

Or if you need that object to both cast and receive, and shadowing is the problem, then maybe someone who knows more about unity shadows than me can offer advice on how to change the bias/near/far settings, if that’s possible :slight_smile:

Thanks a lot for the reply, Richard! While not, necessarily a direct solution, I realized that I only have this problem when using the directional light. The other light types don’t have this issue. For this project, I’ll just avoid the directional light.

By having my Shadow Resolution set to High Resolution the lines disappeared for me. You can access it in the Project Settings > Quality