procedural-materials-and-shaders SKILL.md skillB
procedural-materials-and-shaders from tmhsdigital/blender-developer-tools is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tmhsdigital/blender-developer-tools/procedural-materials-and-shaders@git:20261012.ea56f39Pins git:20261012.ea56f39 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tmhsdigital/blender-developer-tools
- Path
skills/procedural-materials-and-shaders/SKILL.md- Versions recorded
- 11
- Latest version
- git:20261012.ea56f39, committed Oct 12, 2026
- First version recorded
- Apr 26, 2026
- Size
- 13,118 bytes
- Repository stars
- 17
- License
- a license file GitHub does not identify
Build materials and shader node graphs from Python: bpy.data.materials, node_tree, Principled BSDF and its 4.0+ socket names, default values, links and shader node groups, for EEVEE and Cycles. Use when the user creates or edits materials in a script, generates many material variations, hits a KeyError on a Principled BSDF input such as Specular or Emission, or asks about EEVEE vs Cycles differences or the deferred Layered Textures system. Targets 5.2 LTS.
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
# Procedural Materials and Shaders ## Trigger Use this skill when the user: - Wants to create or edit materials from Python rather than the shader editor - Mentions `bpy.data.materials`, `node_tree`, `ShaderNodeBsdfPrincipled`, `inputs[...].default_value` - Needs to generate many materials parametrically (asset libraries, batch import, color variations) - Asks about EEVEE Next vs Cycles material differences - Asks about "Layered Textures" or "the new shader system" (see version-correctness section) ## Required inputs - **What kind of material**: opaque PBR, transparent, emissive, glass, hair, volumetric - **What controls you want exposed**: base color, metallic, roughness, IOR, normal map, etc. - **Render engine target**: Cycles, EEVEE Next, or both. Most Principled BSDF setups port between the two without changes. ## The minimum viable material Every Python-built material follows the same four steps: 1. Create the material datablock with `bpy.data.materials.new(name=...)`. …
Read the whole file at its exact version.
How to install
mdr add tmhsdigital/blender-developer-tools/procedural-materials-and-shaders@sha256:339e23a3be0dcce9The line at the top of this page pins the label git:20261012.ea56f39, 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_cftfy7drmyuzylly)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 11 versions of this file, between Apr 26, 2026 and Oct 12, 2026, about one every 17 days. Its first recorded version is graded A and its latest B.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261012.ea56f39 latest | 2026-10-12 | ea56f39 | 13,118 B | B | view · diff |
| git:20261007.dccca5d | 2026-10-07 | dccca5d | 11,723 B | B | view · diff |
| git:20261005.f80411b | 2026-10-05 | f80411b | 11,723 B | B | view · diff |
| git:20261005.5e0299c | 2026-10-05 | 5e0299c | 10,521 B | A | view · diff |
| git:20261005.040e994 | 2026-10-05 | 040e994 | 10,303 B | A | view · diff |
| git:20261004.c3ca5d8 | 2026-10-04 | c3ca5d8 | 10,159 B | A | view · diff |
| git:20261003.fefd033 | 2026-10-03 | fefd033 | 9,187 B | A | view · diff |
| git:20260909.e5b1642 | 2026-09-09 | e5b1642 | 9,004 B | A | view · diff |
| git:20260618.c39032d | 2026-06-18 | c39032d | 9,000 B | A | view · diff |
| git:20260613.e6324e5 | 2026-06-13 | e6324e5 | 8,915 B | A | view · diff |
| git:20260426.5a05f16 | 2026-04-26 | 5a05f16 | 8,914 B | A | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13118 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
tmhsdigital/blender-developer-tools · 17 stars · license a license file GitHub does not identify · pushed 2026-10-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cftfy7drmyuzylly GET https://markdownregistry.com/api/v1/resolve?ref=tmhsdigital/blender-developer-tools/procedural-materials-and-shaders GET https://markdownregistry.com/api/v1/blob/339e23a3be0dcce9cf4edb80200626922a62004fc77fe72f7a1e76e1683e2e6d
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.