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I have different objects with the same material applied. The direction of the light reflecting from the surface, seems to differ. I tried applying rotation and scale but it didn't change anything, except messing up the models that have an Array Modifier on them. Any ideas how I can fix this?

enter image description here

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  • $\begingroup$ Hello and welcome to BSE. Are you referring to the seam? Or do you mean the vertical bar is darker than the diagonal bar? Can you share the blend file blend-exchange.com $\endgroup$
    – Harry McKenzie ♦
    Commented Jun 12 at 6:12
  • $\begingroup$ Hello. In the scene there are three objects. The upper and the lower ones have an array modifier on them, the middle one has none. The texture transition within the array object is smooth, but between the middle section and the other two sections there is a line. And the "shininess" also is different. blend-exchange.com/b/R3WbRAbp $\endgroup$
    – Tibix
    Commented Jun 12 at 6:27
  • $\begingroup$ Your Color Space of the Image Texture nodes should be non-color except for the Base Color Image Texture. They are currently set to sRGB. $\endgroup$
    – Harry McKenzie ♦
    Commented Jun 12 at 6:47
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    $\begingroup$ I see.. Thank you Harry, that fixed it! $\endgroup$
    – Tibix
    Commented Jun 12 at 7:03

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The Color Space option of the Image Texture nodes should be Non-Color except for the Base Color Image Texture which should be sRGB.

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In addition to Harry McKenzie's answer

In your material, the normal is image-based, in Tangent space. That means the local 3D spin of X and Y directions about the Z normal is dependent on the U and V directions in the UV map.

The UV map of the middle section of your mesh is at right-angles to the UV map of the arrayed section, with respect to their surfaces:

enter image description here

.. and needs to be rotated -90°, for consistency.

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  • $\begingroup$ If you can commit the time, the UV mapping could be simplified, altogether. $\endgroup$
    – Robin Betts ♦
    Commented Jun 12 at 7:31

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