Terrain texture looks really blurry

The magic keyword here is mipmapping.

Mipmapping increases smoothness and decreases aliasing artifacts if a texture is rendered at a smaller size than its actual pixel resolution. However, even if displayed exactly at pixel resolution, it will introduce some amount of blurryness in Unity. In addition, several parameters influence how a mipmapped texture appears on the screen.

Essentially, you have two options:

To achieve a crisp rendering of your texture, set the Texture Type to "Advanced", disable MipMapping, and disable non-power-of-two scaling (otherwise you will introduce another level of blurring due to rescaling). The disadvantage is, you'll get aliasing artifacts, if you zoom out. To achieve a smooth display of your texture at any viewing distance, enable mipmapping, use "ToNearest" power-of-two scaling (sometimes even "ToLarger" might be better), and set the Filter Mode to "Trilinear" (This is important! Otherwise MipMap interpolation will not work). The disadvantage is some level of blurryness in your texture rendering

I have had the same problem. Just check if there is strange shader in your project.

For example:
SnowMan/0000 terrain snow/atsV3 UnityTerrainSnow Package/Shaders/Terrain/TerrainReplacementAtsV3Snow.shader

My terrain is OK after I deleted this one.

I hope this will help.

What worked for me was changing my camera's Rendering Path to Forward. It was set to Vertex Lit, which made my textures look blurry exactly like the original poster. Changing it to Forward made them sharp and crisp. Like night and day!

Hey guys, same thing happed to me a moment ago and I think I figured it out.

If you have DirectX11 turned ON, you HAVE TO have a "Nature/Terrain" material assigned to the terrain. If you don't, the textures go blurry.

If you don't want to have a material assigned to terrain (because for example you use a TriPlanar script), turn OFF DirectX11 in Player settings and reset Unity. Textures go back to normal :)

Hope this solves your problem :)

I had this same problem but then it turned out to be the shaders that I was using were bad. I selected the terrain in the hierarchy then I went to Assets->Select Dependencies. Then I deleted all of the shaders and it worked perfectly. I hope this helps.