indirect-lighting SKILL.md skillA
indirect-lighting from wolffe/three.js-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wolffe/three.js-skills/indirect-lighting@git:20261031.50d32a4Pins git:20261031.50d32a4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wolffe/three.js-skills
- Path
skills/lighting/indirect-lighting/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261031.50d32a4, committed Oct 31, 2026
- Size
- 7,984 bytes
- Repository stars
- 3
- License
- MIT
Baked diffuse global illumination for Three.js WebGPU scenes with the r187 LightProbeGrid (a 3D grid of spherical-harmonic probes, GPU-baked with bounces, applied to every lit material) and LightMapper (bakes that irradiance into a uv1 light map with unwrapUVs). Use for interiors, halls, concourses, under bridges, street canyons and anywhere the sun does not reach but light should: bounce light, colour bleed, ambient that changes from room to room.
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
# Indirect lighting Target: Three.js 0.187.0, WebGPU renderer (`three/webgpu`) and TSL node materials (`three/tsl`); WebGPU only, no WebGL fallback, no GLSL strings. Direct light is the `lighting` skill. This one is what happens after the first bounce: the glow of a sunlit floor on a ceiling, the colour of a red wall on a white one, the dimness of a corridor compared to the hall it leaves. Two r187 tools do it, both GPU-resident and both baked, so they cost almost nothing per frame. ## Two tools | Tool | What it is | Use for | | --- | --- | --- | | `LightProbeGrid` | a `Light` holding a 3D grid of L2 spherical-harmonic probes in one 3D texture; added to the scene it lights every lit node material by position | ambient that changes room to room; moving things (a character, vehicles, instanced facades) lit by the space; the fast default | | `LightMapper` | bakes an irradiance function into a `uv1` light map, rasterising each mesh in UV space with jittered samples | static architecture that needs crisp bounce detail and the cheapest possible runtime | The pairing for a hall with a walking character: the grid in the scene for the character and …
Read the whole file at its exact version.
How to install
mdr add wolffe/three.js-skills/indirect-lighting@sha256:0026c9212f08272bThe line at the top of this page pins the label git:20261031.50d32a4, 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_ewrukeiweycmhbnm)
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Versions
The registry has recorded 1 version of this file, committed on Oct 31, 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 (7984 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
wolffe/three.js-skills · 3 stars · license MIT · pushed 2026-11-02 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_ewrukeiweycmhbnm GET https://markdownregistry.com/api/v1/resolve?ref=wolffe/three.js-skills/indirect-lighting GET https://markdownregistry.com/api/v1/blob/0026c9212f08272b4e2d612e538a4a59dd6e57ac403c34c4375f7265a69be3bd
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.