Blender Kiln

blender-kiln — The 3D Asset Forge

A Claude Code skill that turns a text brief — or a photo — into a production-ready GLB through Blender. Blender MCP servers give an agent hands in Blender; kiln gives it the production method on top — sourcing, cleanup, texturing, optimization, validation, export — and works on both of them: ahujasid's mcp-for-blender and the Blender Foundation's official Blender Lab MCP, the server behind Claude's Blender connector.

Cited in 3DCodeBench: Benchmarking Agentic Procedural 3D Modeling Via Code (Google DeepMind, USC, 2026), §1.

From one photo each, no marketplace, no AI generation: scripted in Blender, textured from CC0 scans, measured against the real object. Shape scores against the real assets: 0.897, 0.950, 0.750 — how they are measured.

Quickstart

/plugin marketplace add elithril/blender-kiln
/plugin install blender-kiln@blender-kiln
/kiln setup
/kiln A hanging iron lantern for a medieval inn, stylized, for the web

/kiln setup detects Blender, the MCP server and the optional tools, and says what is missing. Blender 4.4+ with a Blender MCP running — see Requirements. Give it a photo and it rebuilds the object: /kiln Rebuild the lamp in ./lamp.png as a game asset.

How it works, from a photo

Every panel is a file the session itself wrote while rebuilding the ammo box above — nothing re-staged.

1. Read the photo before modeling. An inventory of every part and how it meets the next, from enlarged crops; the real size, the camera's height and angle — asked, or stated as assumptions. Given a 3D mesh generated from the same photo, its proportions are measured instead (TRELLIS.2, locally) — never shipped.
2. Texture from scans, not noise. A Poly Haven CC0 texture set of the material family, chosen by eye against the photo, tinted to its palette, worn by the form.
3. Measure against the photo. plugin/tools/fidelity_check.py renders the model at the photo's camera under a studio light and lists the gaps — silhouette per height band, materials, metal that cannot exist.
4. Look at every joint. Each end of a long part that touches another is rendered alone: a part that joins another enters it.
5. Ship, and measure the file that ships. Optimized (Draco, WebP), validated, re-measured as a GLB — what the user gets, not the .blend.

Measured, not claimed

A quality bench runs the skill headless, each session in a sandbox, and measures every GLB it ships after re-importing it. Photo references are Poly Haven previews, so the real 3D asset exists: each rebuild is scored against it from five sides — an asset the session never sees. Blender 5.2.2, Opus 5.5, one run each:

From a photo	before the photo method	kiln 2.0	shipped	cost
Hurricane lantern	0.830	0.897	229 KB	$5.04
Ammo box	0.854	0.950	187 KB	$3.80
Gothic chair	0.445	0.750	239 KB	$6.13