Free UV, Baking, Remesh and GPU Painting Add-ons

Resources Released Add-ons and Extensions
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I’ve vibe-coded five free, open-source Blender add-ons while working on a production sculpting project:

  • Seam Path Tool — interactive shortest-path seam marking with live previews.
  • UV Island Overlay — displays predicted or actual UV islands and texel density directly on the mesh.
  • Calipers — estimates voxel-remesh cost and warns before potentially dangerous operations.
  • Kiln — a guided high-to-low normal-baking workflow with readiness checks and projection cages.
  • Impasto — GPU-resident, multi-channel PBR painting with layers, masks, fill layers, brush alphas, and live material preview.

Impasto’s primary workflow paints multiple 4K material channels simultaneously. In my five-channel demonstration, it sustained approximately
272–523 brush dabs per second on a Quadro RTX 5000 Max-Q.

The tools are under active development and have primarily been tested with Blender 5.1.2 and my own production meshes. Feedback and bug reports
are very welcome.

Source, installation instructions, screenshots, and documentation:

Seam Path Tool and UV Island Overlay demo:

Impasto demo:

Longer write up:

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