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I would like to use the generated wave texture as a normal map. It is a mesh with different materials assigned.

I try to plug in the wave texture directly into the normal map node but it doesn't work like that. Can I convert somehow the output of the wave texture ? I'm quite confuse how to proceed and how to do it.

screenshot of material setup

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Normal maps expect RGB chanels to represent the XYZ axis of the surface.

A monochrome texture like wave only has one component and can't effectively be used as a Normal Map directly.

What you need is to convert it into a bump map which represents height values from a single component instead, that can be used to influence normals.

Use a Vector > Bump node instead

enter image description here

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