help in the creation of new n, d, and s .dds texture files?

[wastlander]

Hi

I am looking to begin creating a few custom replacements for the various paintings in Fallout 4. I would like to create some normal maps and specular maps to make a FO4 dds texture files that modifies the various Bethesda originals textures files from the Cabot house,specifically the portraits of the family to look like more like old oil 19th century paintings.

I have managed to locate and extract a couple textures via the B.A.E. I have also found appropriate image resources to layer onto the original in order make painting surfaces look aged and varnished.

I have installed Gimp 2.8 with normal map and .dds plug- ins and Blender installed.

I have found a few tutorials on youtube that were ok but they could be more precise as to how to mod all three dds files

Question 1-Can any one suggest any really good absolute beginner guides, or make any detailed suggestions as to how to create normal and specular maps in Gimp 2.8 or Blender and covert it back to dds.

Question 2-: the texture files for all the paintings appear throughout various texture BSA.

When modding/replacing the texture of specific in game images for example the paintings of kittens, or other in game framed pictures do the 3 moded replacement textures ( _d_dds ,_ n_dds and s_dds ) files need to be put back in the exact same file for example Textures6 .BSA/ Textures/ SetDressing /PaintingsGeneric? Or can these replacement files just be put back in to the DATA folder and marked only with their Original file name in a textures folder?

many thanks

wastlander