It's been happening the last couple of days, but whenever I attach the Bump node to diffuse or any other property, the mesh becomes darker and it gains dark blocky shadows, it almost looks like I've applied the toon shader on it. No matter how my times I use the subsurface tool, the shadows never smooth out and I never get my bump map effect. This is the exact beginning setup that I've done on multiple occasions, but recently it's been wigging out on me, I want to know the reason why it's doing this.

Edit The Second image is me doing the same beginning node setup with the outcome looking way different. There's something I'm missing but I don't know what enter image description here

enter image description here

  • $\begingroup$ You are having an incorrect node setup mate, there should be also a glossy shader connected to mix shader and then connect the bump map to both diffuse and glossy. Only having a mix shader don't make bumps, the result will be the same if you directly connect diffuse to material output. $\endgroup$ – Yash Mar 4 '19 at 5:19
  • $\begingroup$ See also blender.stackexchange.com/questions/60644/… $\endgroup$ – Yash Mar 4 '19 at 5:27
  • $\begingroup$ Also your light position may be incorrect. $\endgroup$ – Yash Mar 4 '19 at 5:30
  • $\begingroup$ Added a second photo showing an example. I use Mix shader for Fresnel and Glossy. It's worked before. $\endgroup$ – B.Mation Mar 4 '19 at 5:30
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    $\begingroup$ Please do not add "solved" as part of the title or put the answer as part of the question. Write a proper answer in the answers section and mark it as accepted instead. Please take the tour to understand how the site works. Read also: what does it mean when an answer is accepted? $\endgroup$ – user1853 Mar 4 '19 at 5:50

As cegaton said, connect your Image texture node to Height socket instead of Normal.
Also change the first dropdown from Color to Non-color data.

enter image description here

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