Lightmap seams in modular environments

Hello everyone,

I’ve been having trouble with seams showing up in my baked lightmaps in a modular environment (URP). The seams do not seem to disappear. For those of you struggling with the same issue, here is an important step to take to remove most seams:

  • In Lighting settings, turn off all forms of Filtering. Simply select “None”. Filtering will denoise textures, which will make it impossible for modular pieces not to show their seams, as the textures won’t stitch well together.

I’m now facing the following problem:
When I zoom out at an angle in a scene, the seams will still appear (see screenshot). The floor in this screenshot is built out of 5x5 planes snapped together with ProGrids. The texture on top is a world position texture, but just to illustrate the problem I’m also showing it with the default Unity texture.

Does anyone know how to solve this? And do you know of a way to remove the seams without loosing noise reduction/filtering? Textures have to be baked pretty high res when there is no form of filtering…

Thanks!