orklev2-pbr

orklev2-pbr is a skill for Claude Code from tweakoz/orkid. It costs 95 tokens per session (4,187 once invoked), scanned A, original, MIT.

A reference guide to Orkid’s physically based rendering (PBR) material system, which controls how 3D surfaces look under light. It covers materials, textures, environment lighting, shaders, lightmaps, and Python bindings.

In plain words
What is it for?
Use it to understand or explain PBR materials, texture channels, image-based lighting, shader techniques, lightmaps, model serialization, and Python material bindings.
Why use it?
It gives an agent the relevant Orkid source files and concepts needed to answer material and shading questions accurately.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/tweakoz/orkid/orklev2-pbr
Any agent
npx skills add tweakoz/orkid --skill orklev2-pbr
Clone the repo
git clone --depth 1 https://github.com/tweakoz/orkid

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for orklev2-pbr

README.md
[![agentmods](https://agentmods.dev/badge/skills/tweakoz/orkid/orklev2-pbr.svg)](https://agentmods.dev/skills/tweakoz/orkid/orklev2-pbr)
Your own site
<a href="https://agentmods.dev/skills/tweakoz/orkid/orklev2-pbr"><img src="https://agentmods.dev/badge/skills/tweakoz/orkid/orklev2-pbr.svg" alt="Measured on agentmods" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,187 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00095 $0.04187
Opus 5 $0.00048 $0.02093
Sonnet 5 $0.00019 $0.00837
Haiku 4.5 $0.00010 $0.00419

Measured 4d ago against content hash 48717775b8b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

orklev2-pbr scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/orklev2-pbr/SKILL.md · 275 lines

How it starts

The opening of the file, as written. The whole thing — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Orkid PBR Material System Reference

When answering questions about PBR materials, shading, or IBL in orkid, consult the files below. All under ork.lev2/.

Key Files

Component Header/File
GfxMaterial Base inc/ork/lev2/gfx/gfxmaterial.h
PBRMaterial inc/ork/lev2/gfx/material_pbr.inl
FreestyleMaterial inc/ork/lev2/gfx/material_freestyle.h
IBL/Radiance inc/ork/lev2/gfx/renderer/NodeCompositor/pbr_common.h
Drawable Integration inc/ork/lev2/gfx/renderer/drawable.h
Model/XGM inc/ork/lev2/gfx/gfxmodel.h
PBR Main Impl src/gfx/material/material_pbr.cpp
PBR I/O (XGM) src/gfx/material/material_pbr_io.cpp
PBR Images/Textures src/gfx/material/material_pbr_image.cpp
PBR Lightmaps src/gfx/material/material_pbr_lightmaps.cpp
BRDF Generation src/gfx/material/material_pbr_gen.cpp
Pipeline/Techniques src/gfx/material/material_pbr_pipeline.cpp
Depth Prepass src/gfx/material/material_pbr_depthprepass.cpp
Picking src/gfx/material/material_pbr_pick.cpp
Unlit src/gfx/material/material_pbr_unlit.cpp
Misc Techniques src/gfx/material/material_pbr_misc.cpp
Python Bindings pyext/src/pyext_gfx_material.cpp

Class Hierarchy

ork::Object
└── GfxMaterial (abstract, gfxmaterial.h:113)
    ├── PBRMaterial (material_pbr.inl:46)
    └── FreestyleMaterial (material_freestyle.h:20)

GfxMaterial Base (gfxmaterial.h)

  • mMaterialName, miNumPasses — identity and pass count
  • _rasterstate — blend, depth, cull state
  • _varmap — dynamic parameter storage (VarMap)
  • _variant — CRC32 variant identifier for technique override
  • _state_lambdas — per-frame parameter binding callbacks
  • _bound_params — fxparam → value bindings; every bindParam() bumps _bound_params_stamp, and cached FxPipelines lazily re-overlay when their seen-stamp lags (FxPipeline::_syncMaterialParams) — a rebind AFTER pipelines exist is live on the next draw

Read the full file on GitHub · 275 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 275 lines · 95 tokens per session scan A 48717775b8b9

Subscribe to this mod's changes

orklev2-pbr is a skill published in the GitHub repository tweakoz/orkid (35 stars, last pushed 24d ago), licensed MIT. It adds 95 tokens to every session and 4,187 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.

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