Hello Check this post, hope it help  

Fixed. Newer version Blender 4.5. Object needs Shade Auto Smooth, Click ignore sharpness and apply the modifier. Now can be used in 3dcoat (using 3dcoat applink). There maybe other ways (hardops)  but this works for me. 

Hi, new to 3D Coat 2025.  There does not seem to be applink for Blender 4.5.  Please advice, thank you.

That worked mostly.  The issue with UDIM's in that the head usually has  more poly's so the effect left me with allot of fixes, the Power Smooth works pretty well as long as you have allot of real estate to work on.  There seems to be a bug in the Super Smooth as when I'm working on smaller areas like finger tips and areas like that the brush seems to leave weird whited out areas on other areas.  So say I'm working on the pinkie to smooth out the pore overlay the Super Smooth will smooth that area out fine but it will leave this swath of white on the thumb.  I thought I was imagining it so I hit CTL Z a couple of times to undo the pinky smoothing and the swath of white went away on the thumb.  Tried again, same issue.  SO not sure if this needs to be reported or if it's a known bug?? 

Thanks so much.  I'' give that a try.  

On another note with Blender 4.5.3 you can still use exported objects as .obj and 3dcoat can still use them.

3DCoat Paint Tools: Picture ToolView the full article

Hi To add Custom pattern to Fill tool is useful for you ?

This version no longer exists.

I did a fresh install Blender 4.5.3. The app is broken. I'm using 3dcoat 25.09.  Using the cube as a simple import it appears in 3dcoat (Per-Pixel Painting) it appears as if base color or normals are missing. Import by Microvertex Painting it appears as a sphere (no sub added). Smart Material is broken using imported object. Everything works in Blender 4.4.  Attached screen shots from 3dcoat. First picture 3dcoat image Blender 4.5.3 Second picture 3dcoat image Blender 4.4 Third picture 3dcoat image Blender 4.5.3

So I had to take a few days off for health and work stuff.  I come back and can't remember exactly what I did with the brushes for the figures roughness channel.  So as much as I'd like to spend time trying to recreate the effect I did for the head UDIM I just don't have the patience nor the memory of what exactly I did.   So my idea is to create a full body fill of sorts but not sure how to go about it.  I want to pick a "pore" type of alpha and apply it throughout the entirety of the figures UDIM's so Head, Torso and Limbs.  I know there is a way, probably a smart filter but the setup box that comes up has me confused so thought I'd reach out for some guidance.   Thanks so much Richard 

Thanks for the file. I'll test it.

@Carlosan  " There is a specific version of 3DCoat build only for shoes design. It is a private development. " Say What?! Unbelievable. I mean what's the difference in toolsets? And why isn't it in the main package? If I may ask. Wow. cool news. 

@Gorbatovsky  The option sais: "snap the polygons generated".   But it does not. Instead it snaps all vertices, from every polygroup, even invisible. (the whole Model gets flattened, with undo impossible.)  -I am pretty sure you want only the new patch to be snapped? Because this damages the whole Model, like it is now. Please test the file and thx for the quick reply smart retopo tool.3b

Yep, gonna send it a bit later.