I have a mesh with three different materials. I applied different procedurals to each. When baking the diffuse texture give me no problems, but the normal maps are giving me strange stretch patterns around where the materials change.(I will post the file if someone will tell me how, but for now, on the image is the set up of one of my procedural normals with its result in the top two images. The bottom two images show the generated normal image and how it looks on the model.)
(You will have to hit the bake button as apparently the downloaded version decided it would be great to make the image blank- thanks blender.) [1]: https://i.sstatic.net/NglD0.jpg
File
>External Data
>Automatically Pack Resources
on your .blend file to ship the files with the file automatically and now when you upload your file, we will have access to your images/textures :) $\endgroup$