polyhaven-hdri-showcase SKILL.md skillA
polyhaven-hdri-showcase 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/polyhaven-hdri-showcase@git:20260921.86ed6eePins git:20260921.86ed6ee 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/kb/polyhaven-hdri-showcase/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260921.655a684, committed Sep 21, 2026
- First version recorded
- Sep 21, 2026
- Size
- 1,407 bytes
- Repository stars
- 9
- License
- MIT
Render the same product across multiple HDRI environments and output a comparison grid. Trigger when asked to compare lighting setups, test different environments, show product in multiple settings, or create an HDRI comparison.
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
# PolyHaven HDRI Showcase Renders your product across multiple PolyHaven HDRI environments and saves each as an image — perfect for picking the best lighting for your product shots or creating a showcase grid. > Adapted for claude-3d-harness. The original ran a bundled Node script that opened Blender's add-on socket itself and > sent it Python built from command-line text; it switched Blender's Cycles device preferences for the whole machine > and left the scene lit by whichever HDRI came last. The same steps now go through the MCP server, the preferences > are left alone, and the scene's own World is given back at the end. See `docs/security-review.md`. ## Parameters | Parameter | Description | Default | |-----------|-------------|---------| | `output` | Folder for the rendered images | `<JOB_DIR>/hdri` | | `hdris` | HDRI IDs to compare | the default set of 6 | | `preset` | HDRI set: studios, outdoor, dramatic, all | none | | `resolution` | HDRI resolution: 1k, 2k | `1k` | | `render_width` / `render_height` | Render size | `1920` x `1080` | | `samples` | Render samples | `64` | ## HDRI sets …
Read the whole file at its exact version.
How to install
mdr add max-786/claude-3d-harness/polyhaven-hdri-showcase@sha256:1cfc48622d5a2e95The line at the top of this page pins the label git:20260921.86ed6ee, 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_4d7lowh2sledtq3j)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Sep 21, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260921.655a684 latest | 2026-09-21 | 655a684 | 1,407 B | A | view · diff |
| git:20260921.86ed6ee | 2026-09-21 | 86ed6ee | 4,351 B | A | view |
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 (1407 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_4d7lowh2sledtq3j GET https://markdownregistry.com/api/v1/resolve?ref=max-786/claude-3d-harness/polyhaven-hdri-showcase GET https://markdownregistry.com/api/v1/blob/1cfc48622d5a2e95347a872a0895d25f087e8e7fe19b8330af819b56c3846c06
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.