Question [SOLVED] Procgen Terrain Seams

There's some visible seams in my procgen terrain I'd like to get rid of. The shadow seams are visible both in Editor scene camera and Game camera, while the texture seams are visible only in Game camera. Already tried using

Wrap Mode: Clamp

and enabling/disabling mipmaps as far as the texture seams go with minimal if any effect.

 

Look up leaky light shadows

 

Ok, so after some investigation, here are my solutions:

1. The texture seams were caused by pixels bleeding over from one texture to the next on the texture atlas. This happened regardless of using Clamp->Point settings, compression settings, etc. The only solution was to add padding in the atlas. So now I group like next to like and leave some gaps that I can use for transparent sprites like icons and such later.
2. As Kurt mentioned, some of the seams were related to lighting and shadows. Since I'm using URP, I had to edit the Shadow Bias settings in the Light to some really, really low values to stop light from bleeding through minuscule seams in the mesh. Which has it's own problems. One more workable solution is to increase the "depth" of your mesh, if possible. I can't, so I'll be tinkering with Shadow Bias values or perhaps rolling a separate lighting solution.
   • Alternatively, you can enable Two Sided shadow casting on the mesh. That seems to clean up the leaky light quite a bit without disrupting the sacred Shadow Bias values.