Substance 3D Painter

When importing compatible ABC files into Substance Painter, mesh names for geometry masks come in with incorrect extra leading forward slashes. For example, with an ABC hierarchy of…foobarbaz...the mesh names come into Substance Painter like so:/foo/bar/baz While this could be considered just an inconvenience, it causes a practical issue.  The same source exported as FBX does not result in this same extra leading forward slash; and so if a project is set up to use mesh names for geometry masks and the model is updated between ABC and FBX, then the geometry masks will not be preserved after the model update.This can be worked-around by restricting a file to only use the model format it started with; but this seems to be a limiting restriction.

I have two issues with with my project, but I'm not sure if they're connected. When i import my model, I see an error in the log stating that part of the model has "faces in out of bounds UDIM indices [0, -1]". The part of the mesh with these problematic faces is named, but when I go back into Maya and check it, the faces on that mesh are not out of bounds at all. I'm trying to get ambient occulusion and curvature maps from substance painter to use in Mari, but when I do the bake with this same mesh, the result is completely messed up and I've never had this happen before, so I have no idea what's going on. Are the out-of-bounds faces causing this baking issue? Or is it something else? I've attached screenshots of the error message, the uv faces referenced, and the botched bake result: 

I try to set few Display parameters :Environment Opacity Environment Exposure (EV) Environment Blur Environment Rotation Environment AlignmentI want to do that in Python by can not find a way to do that.Thanks in advance!  

ID Mask viewed in PhotopeaID Mask Viewed in Substance Painter Result of using a mask with that wrapping ID mask in Photopea to show where the green is wrapping fromResult of using the ID mask, showing a second material causing a seamExtra example in substance to show the wrapping despite ID mask being clean when viewed in Photopea. (There will be black wrapping onto the red section too)Simple reproduction:Use an edge-to-edge 0–1 UV island. Bake contrasting ID colours at opposite edges. Export the ID map. The exported image is pixel-perfect and contains no bleeding. Inside Painter, use Color Selection. The colour from the opposite edge bleeds into the generated mask.Re-importing the exported ID map as a regular texture and viewing it inside Painter displays the same wrapping/filtering at the edges.Maybe I am missing a setting or using this incorrectly, but the behaviour seems odd. I spent several hours trying different bake, padding and viewport settings before eventually exporting the

12.1.1 build 5594，The emission channel is ineffective in OpenPBR material mode, whereas it works when switching back to the previous material.

Hi. im trying to bake normal maps from my work and got some error log.In the project the mesh has 3 texture set lists. 2 of them use only one tile. but the other one has UDIM with 2 tiles.Mesh maps of all of them have been done sucessfully, i also checked Log '[StacksExporter] Map export ended' text to make sure. And during work, i didn't meet any problem. But when i tried to export final normal maps today, two mesh texture sets with no UDIM got it success, but the mesh texture with UDIM keeps failed and in the log i can only see two lines that is[MapExporter] Nothing could have been exported on the Cup stack:[MapExporter] The channel Normal is not available in the Cup stack.(Cup is a name of the texture set.) i did some tests. With the same mesh texture set,  i tried changing output directory and file type and nothing worked. And did exporting other maps like rough or diffuse, or height with exr format and they all ok with exporting. of course the border of UV tiles has

 I brought my materials into Blender from Substance 3D Painter and everything lines up pretty nicely, besides this one part under the keypad. I did a high-low baking. I know the imprint is thanks to baking through to the blue part, but in Substance Painter, this is hidden by the keypad so it’s not a big deal. Even though the UVs and the models are identical, for whatever reason the textures don’t line up the same. Re-exporting the mesh from Blender and re-importing the mesh into Substance has no effect within substance and it still looks normal.I’m not sure if this is related but the corners of the objects also don’t smoothly connect like they do in substance painter either. I don’t know if I’m missing a setting or if there was a problem with the export.Material view in Substance 3D PainterMaterial view in Blender 

I can’t open https://substance3d.adobe.com/education/ , as it leads to a “504 Gateway Timeout” error.  

So i posted this a while back before but the Post has been removed for some reason…. i guess because being inactive on the post. but yeah this happens when using the Pen Tool more you use it. adds artifacts to your Height and the only fix for this was to Down Grade to 2025 11.0.3… Any Higher that that Version the Bug still remains there…… shocking its still there in 2026 Video example i made for the old post  

Since 12.1 (this is 12.1.1) the VRAM usage of Substance Painter is crazy. There's another bug report about performance issues but for me it wasn't clear if it's VRAM related.What happens:While working on a very small scene which only uses like 3GB of VRAM it skyrockets to the max in the matter of minutes while working on it.This is 100% a memory leak and happens as well with version 12.1.1My system is nothing special, Win 11, 64GB, i9-9900K but what makes it a bit more special is the fact I have 2 GPUs, a 3090 and 4090 both with 24GB VRAM.I tried to force using the 3090 using the options inside Windows Display > Graphics options but that doesn't help, it only switches the issue to the 3090. I'm currently at the Nvidia 610.62 Studio Drivers.If I quit Substance Painter while it hugs the 24GB it will roughly empty 12GB and after like a minute it gives me back another 10GB of VRAM.It also doesn't really matter what I do, the screenshot attached is a storyboard where I only hide/unhide m

OS: Windows 11 GPU: NVIDIA GeForce GT 1030 (2 GB) CPU: Intel i5-10400F Works: Substance Painter 11.0 Broken: 11.1+ (and upwards) Symptoms: New and existing projects affected. Model initially appears white until a layer is toggled. Toggling a layer makes textures sharp. As soon as the camera rotates/pans/zooms, textures become permanently blurry. Texture Set resolution remains at the selected resolution (does not change). GPU usage stays around 20%. Already tried: Clean reinstall. Updated NVIDIA drivers. Verified Painter is using the GT 1030. Vulkan diagnostic tools run without errors. Problem only appears in versions using the Vulkan renderer. I don’t think it is my graphic’s card at fault since i even tried small texture sizes and light models and it still becomes extremely blurred (it’s not being overwhelmed), what do you guys think? Please help. 

Windows 11 | Painter 11.1.3 | Nvidia GeForce RTX 3080Ti | 128 GB RAM | ADM Ryzen 9 5900X 12 Core When I create a new File I set a OCIO (Custom, ACES 1.2 or ACES 2.0 doesn’t matter). Then I load in external texture files and set their Output color space. It doesn’t matter if I set this manually or automatic via OCIO rules All good and works like that:After saving and reopen the file I lose all the “Output color space” OCIO rules/settings. It displays not compatible and only the defaults are available. When I check the Project Configuration it is still using the correct OCIO file and there is also no Error/Warning in the LOG: Does anyone else has this issue? It is a critical Bug in our case because textures load wrong and are not correctly exportet. Also it is very confusing. Sadly we can’t go to Painter Version 12 yet because of the python version switch. Best regards,Timo

This is a simple question, not sure if its been implemented in this manner as its been a while since I have used painter. But, what i wanted to know was, similar to marmoset toolbag has a bevel shader, will or does painter have the ability to “bake” in a beveled edge as if replicating a high poly bake from a higher poly model along edges. thoughts? I understand it has a bevel filter, but I don’t recall it doing anything in that capacity.

When I use a FBX file it uses correctly the Material Name that is assigned to the Mesh:Assignment in the Maya Model file:When I use a USD file it uses the Shading Group not the Sader as a Name: I checked my USD and the Shader is still assigned:  It would be great to have only one way of naming here either for both the material name or for both the shading group name, but mixed is confusing our pipeline when exporting the texture files. Thank you!Best regards,Timo

I was unable to bake my carvature in v12. It turned out black. Same model baked well in v11.

Hello, I’m trying to use a grunge map as the base color of my material, then run it through a gradient map to color it. I wanted to use an anchor point before the gradient, to create a roughness map that matches the grunge I’m using as my base color. This works, but the the anchor point roughness map comes out much darker than the base color grunge that it is derived from. What is the reason for this? Shouldn’t the anchor point just directly copy the greyscale map? I made sure that the anchor point is BEFORE my gradient and AFTER my levels. Base color from grunge mapRoughness from grunge map anchor pointThanks for your help, On a side note, is this the best method to do this? I can’t find much about working like this online.

I’m unsure what is causing the issue. Before latest update to 12.1.0, I have not experienced any issues like this. I’m on win11 pro latest updates as of 2026/07/03. Painter is installed on a 2tb gen4 nvme (its my OS drive) and my work files are done on a gen5 samsung pro 9100 drive. Previously saving files was fairly quick, even files over 5gb in size. But now when I save I have to wait as it hangs for a while (1-1.5 minutes) before the save completes. This only happens on large files that is over 1gb in size. When I exit after working, then it also hangs a while before closing, or it just hangs indefinitely and I have to force close painter with task manager. I’m unsure if it is a windows issue, or gpu driver issue, or painter issue. My drivers are up to date. Latest Nvidia studio drivers (v.610.62) through nvidia app. Nvidia app overlays are disabled and no performance settings for apps are done through the nvidia app. System: r9 9950x3d, 64gb ddr5, Rtx 5070ti and above mentioned nvm