Ucupaint
Ucupaint is a Blender addon to manage texture layers for the Eevee and Cycles renderers. Already in development for years, Ucupaint provides a lot of easy-to-use features while also being able to fit into your usual shader nodes workflow.
Features
- Stack images, vertex attributes, generated textures, or many other types into layers and masks.
- All Ucupaint nodes are contained inside a single node group and can be connected to any other nodes.
- Channels in Ucupaint are flexible, add or remove them based on your needs.
- You can add modifiers like a color ramp or math operation for quick adjustments.
- Works well with multiple objects using the same material.
- Decal support
- Ability to load images from asset browser or file browser
- UDIM is detected automatically based on UV islands.
- Bake final channel images and easily arrange them so most exporters can read them.
- Easily set up transparency by enabling alpha channel in a single click.
- Bake AO, multires, other object's normal, and more.
- You can add drivers or keyframes to most Ucupaint inputs.
- Support realtime displacement and even vector displacement map.
- Preview mode to check your layers or channel colors.
- Pack baked channel results into a single image using a custom bake target (useful for creating ORM texture or DirectX normal).
- And so much more.
Location
- View 3D > Sidebar > Ucupaint
- Shader Editor > Sidebar > Ucupaint
Documentation
Please read the wiki to see the documentation and demo. It's not 100% complete yet, but it still can help you get started. To contribute to the wiki, you can go to the wiki repo.
Sponsor
If you find the addon useful, you can sponsor the addon development here
What's New
2.2.0 February 15th, 2025
This release includes a significant UI redesign that aims to resolve some of the previous UI issues.
Updated UI
Collapsible Group
It's now possible to collapse a layer group
New dropdown icons
Dropdownable UI panels now have distinct arrow icons and are easier to click.
Layer channel source
Previously you needed to enable override toggle (hidden by default) to change layer channel value, now you can just change the layer channel source.
Other UI changes
- Vector option is now outside of layer dropdown
- Use lock icon toggle for Uniform Scale
- Object index is now consistently labeled
Object indexinstead ofPass Index - Layer and mask sources are now directly integrated into the UI
- Experimental display list option to make mask/override images to have their own entries on the layer list
- Rebake button is added beside
Use Bakedbutton
Changes
Preview modeis now will disable compositor by default since it can change the actual colorToggle Eraseron texture paint mode in Blender 4.3+ won't create a new brush but select the available eraser brush assetSmoother Bumpoption is now only available if the experimental option is enabled since it's been deprecated
Bugfixes
- Fix: Images won't autosave when using EXR format
- Fix: Manually created UDIM images sometimes don't get packed correctly
- Fix:
Apply sculpt to VDMproduces wrong result when view transform is notStandard - Fix: UI shows old alpha settings on Blender 4.2+ with cycles renderer
- Fix: Wrong bake results with multiple objects with the same material if there are mismatched attribute data types
- Fix: Move layer in or out of group can't be undo-ed
- Fix: Renaming layer also renames image atlas mask
- Fix: Missing UI when other objects bake data are not found
- Fix:
Toggle eraseris not working on Blender 4.4 - Fix: Manipulating main channels can cause wrong keyframed/driver data
Best addon
The true replacement for Substance Painter inside Blender!
Very good add-on