Texture not everywhere same detail

[JakobDegler (Jakojb)]

Hello

I have a “tunnel” with the same material everywhere. somehow The first segment is more detailed, tahn the rest.
Can anybody point me in the right direction?
I have no idea how to fix this.

Thank You!
Jakob

[Okidoki]

Different sized UV’s… ??  

[oo_1942 (Kim)]

The UV size is all different

[JakobDegler (Jakojb)]

Thanks! That’s it.
But why is that? It is a concrete texture…I didn’t do UV mapping.

[oo_1942 (Kim)]

1.The default object has UV.
If you modify this, UV will also be transformed.

2. To display an image on a 3D object, you need a way to display it in any form. If nothing is set, the default is UV.

Please refer to the manual
https://docs.blender.org/manual/en/latest/render/shader_nodes/input/texture_coordinate.html

https://docs.blender.org/manual/en/latest/modeling/meshes/editing/uv.html

UV Unwrapping for Beginners (Blender Tutorial)

[Okidoki]

Also… argording to :

@JakobDegler

I didn’t do UV mapping.

The default mapping method when not using a Texture Coordinate node in the shader editor is UV. So if you added some texture (even the node wrangler adds a Texture Coordinate node using the UV output) it uses thsi mapping evne if you had not unwrapped them.