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I have made a transparent material (the four window rectangles), and lowered its blend mode. I import a PNG scratch texture I made, Images as planes, and I want to make those scratches seem they are on the windows, like the examples I have attached.

Also here's the file and scratches link

https://ibb.co/sCKhBd6

enter image description here enter image description here enter image description here

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2 Answers 2

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You have opaque faces behind your glasses, you need to delete them if you want to see through. For the glass material, under Settings enable Screen Space Refraction and in the Render panel > Screen Space Reflections, enable Refraction. For your basic glass material plug your Image Texture into the Transmission of your Principled BSDF:

enter image description here

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The scratch texture can be used as :

  • an input for the Bump node to create dents
  • a mapping to increase the roughness of the plastic
  • a mapping to reduce the transparency of the plastic

in order to try to achieve the effect you're looking for.

Similar topic here for node setup if needed : Implement surface imperfection textures over base material textures

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  • $\begingroup$ Both answers super helpful, Ill be posting another inquiry I have regarding materials. Kind regards. $\endgroup$ Commented Sep 1, 2023 at 23:25

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