scenario-unreal-lighting-rendering SKILL.md skillA
scenario-unreal-lighting-rendering from scenario-labs/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add scenario-labs/skills/scenario-unreal-lighting-rendering@git:20260926.9ac7861Pins git:20260926.9ac7861 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- scenario-labs/skills
- Path
skills/game-engines/unreal/scenario-unreal-lighting-rendering/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260926.9ac7861, committed Sep 26, 2026
- Size
- 19,652 bytes
- Repository stars
- 1,063
- License
- MIT
Use when lighting or rendering in Unreal Engine 5.8: physical light units and exposure (EV100, lux, lumens), Lumen GI and reflections, MegaLights, virtual shadow maps, sky, fog and clouds, post process and color grading, the path tracer, or Movie Render Graph stills. Triggers: "Lumen is noisy", "MegaLights noise", "the interior is too dark", "light leaks", neon signs, a night or dusk scene, "fireflies", "path tracer vs Lumen", "render a still", EXR settings.
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
# Lighting and rendering in Unreal Engine 5.8 Expert lighting in Unreal is a calibrated camera, physical light values, and a renderer that sees the same scene you do; everything else is art direction layered on top and listed as such. Each step is proved with a representation view and a number before the lit image is trusted; noise is fixed in the system that owns it. If a sibling skill named here is missing from your available skills, ask the user to install it (`npx skills add scenario-labs/skills --skill <name>`); unattended, proceed from tool schemas and flag the gap. **REQUIRED BACKGROUND:** scenario-unreal-expert (channels, review loop, 5.8 traps). **Status (2026-09-24):** [`scripts/ue_light.py`](scripts/ue_light.py) is **not yet run in Unreal**; 200 pure, 65 editor-layer and 20 procedure checks pass offline against a fake `unreal`. First editor run: `tests/code/unreal-lighting-rendering/job_00_probe_lighting.py`. ## Stance (the expert delta) …
Read the whole file at its exact version.
How to install
mdr add scenario-labs/skills/scenario-unreal-lighting-rendering@sha256:8e87569aac64ad6cThe line at the top of this page pins the label git:20260926.9ac7861, 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_bglx7sxdnpoeipa5)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 26, 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 (19652 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
scenario-labs/skills · 1,063 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bglx7sxdnpoeipa5 GET https://markdownregistry.com/api/v1/resolve?ref=scenario-labs/skills/scenario-unreal-lighting-rendering GET https://markdownregistry.com/api/v1/blob/8e87569aac64ad6cfcee4aefce92d9304b8a42e2ff80fe74cc6898b17837a879
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.