by FardreamerLabs·Workflow
Images © FardreamerLabs. Used for product review; image policy.
HUE stands out in the Blender extensions library for pulling vertex-color preview, generation, and RGBA channel masking into a single N-panel.
HUE is a Blender add-on built to make working with vertex colors easier. It lets you preview vertex colors, including alpha, from both object and edit modes, and groups its painting tools into a panel you open from the side of the viewport with the N key.
The tool set covers fill, randomize, a gradient generator, smooth, and color by selection, with full edit-mode selection support so you can paint only selected points, edges, or faces. A palette system with customizable swatches is shared across the tools, and addon preferences let you set startup defaults for every tool.
RGBA color masking lets you modify only the channels you need. Using the affected channels setting, you can leave a single channel on so only its values change while the others stay untouched, which is useful when different channels store different information for use in shaders. HUE supports editing different color attributes and works with Blender 4.2 LTS and newer.
HUE is best for blender users working with vertex colors who want preview, generation, masking, and palette tools grouped in one panel.
HUE is completely free to download and use.
HUE supports Blender 4.2 LTS and newer, so it runs on current LTS releases and later versions. The add-on is released under the GNU General Public License v3.0 or later and does not require special permissions to install. After installing, its tools appear in the side panel of the 3D viewport. If you're on an older Blender build, you would need to upgrade to at least 4.2 to use it. Documentation is available on the developer's GitHub page if you need setup details.
HUE places its tools in the side panel of the 3D viewport, which you open by pressing the N key. From there you can preview vertex colors including alpha in both object and edit modes, run the fill, randomize, gradient, smooth, and color-by-selection tools, and work with the shared palette. Addon preferences let you set startup defaults for every tool. Detailed instructions live on the developer's GitHub page if you get stuck or are new to the add-on.
HUE's RGBA color masking lets you restrict which channels its tools affect. Every channel is on by default, so colors apply as usual, but if you leave only one channel on, only that channel's values change while the others stay untouched. This helps when you use different channels to store different information for shaders, for example a position gradient in the red channel and a mask in the blue channel. It works alongside HUE's support for editing different color attributes.
HUE is listed as free here and is released under the GNU General Public License v3.0 or later. For current licensing terms, the developer's GitHub page is the place to check. The add-on does not require special permissions to install. Beyond that, HUE works with Blender 4.2 LTS and newer, so the main requirement is a compatible Blender version rather than any paid tier or subscription.
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