Fedora 43 KDE. I've go an error for 3DCoat 2026.01: error while loading shared libraries: libicuuc.so.70: cannot open shared object file: No such file or director I managed to fix this problem. I downloaded the necessary library from pkgs.org and installed all the libraries in LinuxLibs. It worked, and the program is working now. But there is one thing that bothers me. According to pkgs.org, Libicu70 is only available for Ubuntu 22.04 LTS. I am afraid that owners of the current 24.04.4 LTS may encounter this problem.

Ok, thanks for the reply. Perhaps a future feature, one could hope.

@Andreas WolmerHi! Masking, as implemented in Paint Room, isn't implemented in the Sculpt room on sculpt layers. However, you can use sculpt layers to modify surface geometry and hide them when needed.

(accidentally posted this in Tutorials section first, moving it here as it's actually a functionality question)  Hi! I'm trying out some sculpting with layers (in Surface Mode), and just wanted to check if the layer masks are supposed to work with sculpt information? Because I can't seem to make it work. Cheers Andreas

Copy the files from C:\Program Files\3DCoat-2025\data\ToolsPresets\InstallAppLinks\Blender following this instruction  

Found out the problem: By default 3Dcoat sets the brush size to: ZERO! Which genius made that default value. It was a fresh 3DCoat install. After I could fill the object with a PBR standard 3Dcoat material I thought, it must be something else. It is working now.   

I downloaded the Applink 4.1 version and installed it into Blender 4.5.7 LTS. I could send a simple cube: Your link you gave, from the other forum post (Applink Blender 4.1): https://projects.blender.org/extensions/io_coat3D Other link for APPlink version (Blender 4.2 / 4.3): https://github.com/AndrewShpagin/io-coat3d Edit:  link from Blenders side with several version of Applink: https://extensions.blender.org/add-ons/coat-applink/versions/   Blender 4.5 is shipped with version 5.0. It does not always show up right away. I do not understand why. after I installed an older version it also avctivated 5.0 also. 2 versions active. So, I disabled an older one then.   Hope fully the get back function will work too. Otherwise it is no biggy. Than just manual import / export then. Thank you so far.

Recently re-start with 3D coat 2025.17 version. But I can't even understand how to simplify paint an surface at all. I read from other forum post:    I read from above post that I can load a 3D coat default mesh. So right from starting 3Dcoat, I click "UV mapped mesh (per pixel)" And choose the robot with the round eye in the middle. But here comes. I now drag the cursor and nothing happens. What do I need to do to start painting? I really have no clue.   I am already in the painting room, but I only see a green line when I try to paint: left click mouse over the mesh.  

Hi Default addons are not working anymore Please take a look -> how to resolve it On latest versions Blender AppLink was updated to be able to exchange data with 3DCoat just from scratch install.  So, just install 3DCoat, Blender, follow what 3DCoat tells (easy to follow) and then you may easily drop assets to Blender, including Factures   Did you follow this steps ?  

I have 3Dcoat 2025.17. I clicked the 3Dcoat window about Blender Applink away. Thinking I could find it trough Blender. But cannot. Now I try to get the popup again, but it no longer shows up. How can I install the Applink addon now? Would be nice if I could download it and install manually. blender version 4.5.7 LTS Thank you in advance.

looking at your video, it's worth noting the following: - Collapse bool tree seems to work differently than merge subtree. Collapse caused instant crash for me, while merge visible / merge subtree caused hang - There seems to be different behavior if you use painting tools AFTER vox hide. Though for me any painting would cause crash most times on home machine. On work machine sometimes it would succeed, but painting after vox hide on internal surface would crash every time. Hm, I repro'd the crash on another machine by following the steps, but if you save and load the file before applying the bools, it doesn't occur. I think the invalid state that causes the crash is not saved. I have a theory. It might have to do with the "pseudo surface" edits you are allowed to do while in voxel mode. EG you sculpt in surface mode but you don't actually go back to voxel mode until it is resampled. seemingly Random 3dcoat events seem to kick off a voxel resample, but using things like the fill tool or the move tool on boolean objects will cause a surface edit to a vox tool and I think this might be related to the family of crashes. 2026-03-02_pre_crash_to_dmitriy.3b Here is a file that definitely crashes every time when you use "collapse bool tree" I arrived at this one slightly differently (also collapse bool tree using steps in video would work occasionally on other machine depending on what exact  buttons I pressed)  On this one I used vox hide, then used the paint fill tool on the intersected region. 

LuxCore produces such sublimely beautiful results...not fakery, but authentic mathematically, physically correct caustics, even unto the materials of the refractive transparent materials that vary according to their scientifically measured chemical substances indices.  

source... The latest version of Quixel Mixer has been released as a free, offline app, without official support. Quixel Mixer has been abandoned for some time, leaving users speculating: some hoped Epic Games might turn it into something new, while others expected it to be shut down entirely. The end of an era is here: Quixel Mixer's final offline version has been released, with no further updates to follow.

I have built 3DCoat 2026.01 for Linux and included libxml2 with the package. Please download it as always from here: https://pilgway.com/~sergyi/links-Linux.html

@wendallhitherd I was able to replicate the program crashing only a few times, but then it stopped happening. Maybe I'm missing something. bandicam 2026-03-02 10-30-42-473.mp4   Please send your .3b scene file before all Boolean operations.

Reproducible crashes related to live booleans in 3DC 2026.01 crash 1: paint tools + boolean collapse causes crash 2026-03-01 20-15-34.mp4   Crash 2: paint tools + live booleans + merge subtree hangs 2026-03-01 20-17-41.mp4   Non-crash bugs with live booleans - Live booleans are missing a bunch of visibility updates, resulting in visible gaps and incorrect live booleans. Must toggle visibility on / off to refresh live boolean preview 2026-03-01 20-33-22.mp4    

Yep, I'm on board with implementing third party render engine or reworking built in one, but... only if it will go along with current shader/smart material system inside 3DCoat. I really don't want to recreate/rebuild my vast library of shaders/smart materials.

Hi Please try sync layer option, don't edit layers. Hope it help