by Mahrkeenerh·Workflow
Images © Mahrkeenerh. Used for product review; image policy.
VertX Artist earns its place in the Superhive library for pairing channel-based vertex color layers with non-destructive, Photoshop-style transformations inside a single dedicated Blender workflow.
VertX Artist is a fully-featured Blender addon built around a dedicated vertex color workflow. It separates RGBA into individual channels (R, G, B, A, RGB, RG, RB, GB, RGBA) so you can paint directly on specific channels and extract or bake alpha layers independently — an approach suited to game engines where RGB stores color and Alpha stores data such as roughness, metallic or AO. Gamma correction converts Blender gamma from Raw to Standard, and inverse correction goes from Standard to Raw.
The addon can refresh to detect all colors, let you click any color to select all matching geometry, and adjust colors so changes propagate to all instances. HSV tools shift Hue, Saturation and Value on selected geometry with incremental +/- buttons. Selection by color offers tolerance control, HSV Ignore and additive selection. A Photoshop-like, layer-based transformation stack previews changes with the material system before applying, with blend modes including Mix, Multiply, Screen, Overlay and Add.
Additional tools cover alpha gradients, importable and exportable color palettes (.ccb, .gpl, .colors), a checkpoint system for manual undo-steps, and an eyedropper that samples colors from anywhere in the viewport.
Vertx Artist - Vertex Painting Tools is best for blender artists working with vertex colors, including game-engine workflows where RGB stores color and Alpha stores data such as roughness, metallic or AO.
Vertx Artist - Vertex Painting Tools is completely free to download and use.
VertX Artist uses the standard Blender addon installation. Download the addon .zip file, then in Blender go to Edit > Preferences > Add-ons > Install from Disk and select the downloaded .zip file. After that, enable "VertX Artist" in the addon list. Once enabled, its tools become available in your Blender vertex color workflow. Questions, issues or feature ideas can be raised through the developer's GitHub Issues page.
VertX Artist automatically updates when you work within the addon, but changes made outside it — using native Blender tools or other addons — require a manual Refresh to detect all colors. Refresh is kept manual for external changes because it is computationally expensive on large models. As a rule, hit Refresh if you see unexpected behavior or after making changes outside the addon, so the color data stays accurate.
VertX Artist notes that regular color changes are not tracked by Blender's undo system. To work around this, the addon includes a Checkpoint system that creates manual undo-steps for color adjustments. It takes some getting used to, but it is useful for saving color states during your workflow. The developer also mentions a Layer Override option for manually editing channel assignments, to be used with caution.
VertX Artist can import color palettes in .ccb (ColorCombo), .gpl (GIMP) and .colors (Unity) formats, and it can export palettes to share across projects or software. You can also create and manage custom palettes directly in Blender. The intent is to maintain consistent color schemes across projects or between different software, while keeping all palette creation and management inside your Blender session rather than switching to a separate tool.
VertX Artist is listed as free in this catalog. For current licensing details, check the developer's page directly. Support is handled through the developer's GitHub Issues page, where you can raise questions, report issues or suggest feature ideas. The addon is described as fully-featured with a dedicated workflow, and while some features may take a moment to learn, the developer notes it is well worth the effort.
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