1. Surface tools change density until voxels applied. This is sense of surface tools. They are faster, there is no vohelizing. 2. I am on Intel core i9, will seek for rizen... But performance is hard task. Too different brush engines.

The .fbx model is in the exchange folder (after Ptex), it should gave been brought back into Blender as the Per Pixel .fbx file.

nope Applinks is here C:\Users\<username>\Documents\AppLinks and the default 3dcoat docs folder is located on C:\Users\<username>\Documents\3DCoat   check this folders and delete the COAT_USER_PATH variable restart the comp and try again

Thanks for trying, can you please confirm if you have the C:/Documents directory with "3DCoat2025" and "AppLinks" folders inside? Or is my case special in this regard?

I am out of ideas, sorry.

C:\Program Files\3DCoat-2025 Didn't changed default settings

Do you have installed 3DCoat in the default installation drive C:\ ?

I do use OneDrive. Created the environment variable with exact "C:\Users\3dlog\Documents\My3DCoatData" directory, it changed the link in the relocation menu, but still creates C:/Documents folder even though it's only 17 bytes. Creates it every time, uninstall 3DCoat, installed it again with env variable, still same behavior, creates C:/Documents, Applink don't work. Changed variable to "C:\Users\3dlog\Documents\3DCoat". Nothing changes.

Maybe your comp have Onedrive installed ? (I am shooting in the dark trying to help) 3DCoat have issues with Onedrive installations   Issues with OneDrive installed “3DCoat” is trying to create a user data folder (which contains user settings and assets) inside “C:\Users\USER_NAME\OneDrive\???????\3DCoat”. That is incorrect. It should create it inside “C:\Users\USER_NAME\Documents\3DCoat”. To workaround this problem: Start > start typing “Edit the system environment variables” > Environment Variables… > System variables > New… > Variable name: COAT_USER_PATH Variable value: C:\Users\USER_NAME\Documents\My3DCoatData (specify your user name inside)

I still can't fix it and now I'm starting to lose my mind. Where should the preferences be stored? For some reason on first running it creates "C:/Documents" directory. There are only "3DCoat" and "AppLinks" folders inside. I already have two documents directories on my machine, I don't want third. Can it be confused somehow? Does everybody else have "C:/Documents" folder specifically for 3d coat? I've used "Relocate 3DCoat's Data", restart it, but it didn't fixed anything for Applink and just created the "3DCoat.txt" file in the "C:/Documents" with the link to new location. I delete it, and on starting 3dcoat it creates again, even though I've relocated prefs to regular documents in users folder. I've reinstalled the app a couple of times after cleaning all the directories and regs, but it still creates this cursed customized documents. I don't see any strange environment variables for it. Is it weird behavior, or is it just quirks of Coat and it works as it should?

Desktop 2025-10-26 00-02-36.mp4     also voxels are giving a strange grouping on polys , voxels use to disperse evenly over the mesh but now it groups them  

As I know... Blender does not have built-in support for Ptex.

Something else is wrong. If I send as Per-Pixel painting, And get back all is well.  But is I use Ptex Paint and use get back I have nothing. The .fbx file is in the exchange folder. I can export manually into Blender and I get the model but without the textures. When I import the .fbx file for the Per-Pixel painting I get the model along with the textures. I havent tested in modeling.

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<- 4.5.2 here & 2025.11 io_coat3D = C:\Users\<username>\AppData\Roaming\Blender Foundation\Blender\4.5\extensions\user_default (file attached) Exchange folder = C:\Users\<username>\Documents\AppLinks\3D-Coat\Exchange\ Exchange_folder.txt = C:\Users\<username>\Documents\3DC2Blender   note: Before had send the mesh from Blender to 3DCoat, to get Getback applink working, you need to use this command first: File > Open in external app. Do not use Export to Belnder and then GetBack.     io_coat3D.rar

do you haave amd ryzen?