It's really easy.
For this, we will use Quickbms (Luigi Auriemma)
First, you will download this: http://aluigi.altervista.org/papers/bms/others/witcher3.bms
In the folder "...\The Witcher 3 Wild Hunt\content\content0\bundles", you make a backup of blob.bundle file. (This is really important if there is an error)
Now extract the file to a folder you created (ex: MOD_BLOB)
We will change the main model of Ciri.
Go to the following folder: MOD_EDIT\characters\models\main_npc\ciri.
The main model: body_01_wa__ciri.w2ent
The nude model: body_03_wa__ciri.w2ent
Duplicate and rename the file body_03_wa__ciri.w2ent in body_01_wa__ciri.w2ent
To import the file, you go first, create a folder for export. It is unnecessary to re-import all the files.
Example: BLOP_EXP (careful to respect the folder tree (BLOP_EXP\characters\models\main_npc\ciri\))
copy the file body_01_wa__ciri.w2ent modified in the new folder (in BLOP_EXP\characters\models\main_npc\ciri\).
quickbms in the folder you have a file name reimport.bat. launch it.
It happens the same way as to extract:
1 - load the script: witcher3.bms
2 - select blob.bundle
3- select the folder BLOP_EXP and click save.
Normally you should be able to play with Ciri nude for the main model only.
For other model, do the same manipulation, taking care to always make a backup of the original files.
Hopefully I have not made a mistake in my explanation.
for another character, so I think there are all changed with this method (Yen, Triss, prisci, Keira, ves, Sheala, filipa..etc)
(Sorry for my bad english)
