I have a group of objects that make up a house. I merged them all into one object and now wish to bake the textures and normal maps onto it (I do not want to bake any lighting). There are 21 materials in total with a diffuse texture image and a normal map for each material. I followed all the usual instructions like smart UV unwrapping the object and then creating a new texture image for each material, but it never comes out the way I want it to.
This is how it looks afterwards:
The UV Map is very complex:
I would really appreciate any advice regarding this. Please let me know if more information is needed.