*Adobe Photoshop + Nvidia DDS Plug-in (Download)
- To obtain the NVIDIA dds plug-in, you must sign up and log in to the site.
Never download from another site.
OR
*GIMP(Download, free) + DDS Plug-in for GIMP(Download)
- Basically, GIMP don't support the BC7 format, so look at This.
OR
*Paint.net(Download, free) + PSD Plug-in for Paint.net(Download)
- All DDS formats(include BC7) are supported, but PSD is not supported, so a plug-in is required.
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If you are ready, open the PSD with the program.
I'm explain about Adobe Photoshop CS6 and other programs are similar.

STEP 1. Resolution Settings
If you want to use 4K, you can go over this step.

Image -> Image Size
Make sure that the marked area is pixels
If you want 2K, enter 2048.
If you want 1K, enter 1024.
Both width and height must be entered equally.
Also It is better to match the resolution of the body texture you are editing.
STEP 2. Load your body texture normal map.
Vanilla race texture files are located in textures\actors\character\female path.
From that path, you can import femalebody_1_msn.dds file.

If not full like below screenshot

you must resize it to be full (You have to Carefully resize to ensure that the size, location, etc, are exactly the same.)
But rather than doing this, it is better to go back to STEP 1 and resize it match to the resolution of the body texture you use.
STEP 3. layer adjustment
Replace layer as shown in the following GIF

You can remove layer with the delete key.
STEP 4. Disable layers that you do not want to use

Click the eye mark of the layer you do not want to use.
Then the layer will be hidden.
STEP 5. Save File
First, press Shift + Ctrl + S

Then select the texture file you want to edit and select the format as DDS.

If you don't use Adobe Photoshop and Nvidia DDS Plug-in, other texture tools will pop up.
But usually, if you don't touch anything else, it's enough to set only the format well.

The format you can choose are as follows:
- BC7 (Select Linear if there are many types)
- 8.8.8 (Select BGR or B8G8R8 if there are many types)
- 8.8.8.8 (Select BGRA or B8G8R8A8 if there are many types)
Finally you're done saving the file, then check it out in the game.
3 comments
PSD to DDS (Online & Free) — Convertio
easy peasy nice tutorial