blender-materials SKILL.md skillA
blender-materials from max-786/claude-3d-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add max-786/claude-3d-harness/blender-materials@git:20260921.d4bf893Pins git:20260921.d4bf893 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- max-786/claude-3d-harness
- Path
library/cc/blender-materials/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260921.d4bf893, committed Sep 21, 2026
- Size
- 21,246 bytes
- Repository stars
- 9
- License
- MIT
Create and assign PBR materials in Blender via Principled BSDF — metals, glass, plastic, fabric, skin, organics. Covers physically-based material recipes with real-world values, Coat layer (varnish/car paint), Sheen (cloth), Subsurface scattering (skin/wax), Transmission (glass), and procedural patterns (wood grain, marble, fabric weave). Use whenever the user asks to "make it look like X material", "give it a metallic finish", "apply a wood texture", "make this glass / plastic / brushed steel…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Blender Materials Apply physically-based materials to objects. Use **only Principled BSDF** — it's the only shader that exports cleanly to glTF and matches what other DCC tools expect. ## The metallic switch — never an in-between The single most-important rule: **Metallic is a switch, not a slider.** Set it to `0.0` (dielectric: plastic, wood, glass, skin) or `1.0` (metal: steel, gold, copper). Values between 0.2 and 0.8 are almost always wrong; they produce energy-non-conservative renders that look "plasticky." Exception: dark mirror lenses (sunglasses) use ~0.8 to combine strong reflection with slight tint — that's a stylistic choice, not strict PBR. ## Decision tree ``` What is it made of? ├── Raw metal (steel, gold, copper, etc.) │ → Metallic=1.0, Base Color = F0 reflectance from physicallybased.info │ → Roughness controls polish (0.05 mirror → 0.4 brushed → 0.7+ weathered) │ ├── Glass / clear / refractive │ → Metallic=0, Transmission=1.0, IOR=1.5 (glass), Roughness=0.0 │ → Add Volume Absorption for thick tinted glass │ ├── Plastic / wood / stone (dielectric, opaque) │ → Metallic=0, IOR=1.45 (plastic) or 1.5 (most others) …
Read the whole file at its exact version.
How to install
mdr add max-786/claude-3d-harness/blender-materials@sha256:031178153480c4b2The line at the top of this page pins the label git:20260921.d4bf893, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_dcut3lz6b3e5vdba)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 21, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (21246 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
max-786/claude-3d-harness · 9 stars · license MIT · pushed 2026-09-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dcut3lz6b3e5vdba GET https://markdownregistry.com/api/v1/resolve?ref=max-786/claude-3d-harness/blender-materials GET https://markdownregistry.com/api/v1/blob/031178153480c4b2f7fe7a7c7a595d324c238ed16e1a3d752d9301e67e2308b3
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.