orthographic-registration

orthographic-registration is a skill for Claude Code from RobLe3/cc-blender-skill. It costs 59 tokens per session (432 once invoked), scanned A, original, MIT.

A method for lining up front, side, back, and top reference images in one Blender coordinate system. Orthographic views are flat reference views without perspective, so each view defines a different part of the model’s shape.

In plain words
What is it for?
Use it before modeling depth or when matching a model to multi-view templates, wireframes, or reference sheets.
Why use it?
It prevents a model that looks correct from the front but has the wrong depth, width, or rear shape. Conflicting reference views are documented instead of being forced into one shape.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it before modeling depth or when matching a model to multi-view templates, wireframes, or reference sheets.

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Install with agentmods
npx agentmods add skills/roble3/cc-blender-skill/orthographic-registration
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.

Any agent
npx skills add RobLe3/cc-blender-skill --skill orthographic-registration
Clone the repo
git clone --depth 1 https://github.com/RobLe3/cc-blender-skill

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 orthographic-registration

README.md
[![agentmods](https://agentmods.dev/badge/skills/roble3/cc-blender-skill/orthographic-registration/github.svg)](https://agentmods.dev/skills/roble3/cc-blender-skill/orthographic-registration)
Your own site
<a href="https://agentmods.dev/skills/roble3/cc-blender-skill/orthographic-registration"><img src="https://agentmods.dev/badge/skills/roble3/cc-blender-skill/orthographic-registration/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for orthographic-registration

Your own site · 80×15
<a href="https://agentmods.dev/skills/roble3/cc-blender-skill/orthographic-registration"><img src="https://agentmods.dev/badge/skills/roble3/cc-blender-skill/orthographic-registration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 432 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00059 $0.00432
Opus 5 $0.00030 $0.00216
Sonnet 5 $0.00012 $0.00086
Haiku 4.5 $0.00006 $0.00043

Measured 11d ago against content hash 5d165a26d7c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

orthographic-registration 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 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/register_views.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

plugin/skills/orthographic-registration/SKILL.md · 41 lines

What it actually says

Orthographic Registration

This skill prevents the common failure where the front view looks plausible but the side/back/top views are wrong.

Coordinate contract

  • Front view defines X/Z silhouette.
  • Side view defines Y/Z depth envelope.
  • Top view defines X/Y spread.
  • Back view defines rear silhouette/material only; it must not rewrite the front silhouette.

Workflow

  1. Run scripts/register_views.py on the available view images.
  2. Create orthographic reference planes/image empties with a single shared scale.
  3. Align centerline and bbox centers before modeling.
  4. Lock front X/Z boundary vertices.
  5. Add Y depth from side/top envelopes using modifiers/displacement or vertex groups.
  6. Validate all four cameras before export.

Failure policy

If views disagree, front brand read wins. Document the conflict in registration_report.json.

Front-plane rotation rule

In this Blender coordinate convention, the front camera looks along the Y axis and the reference silhouette lives in the X/Z plane. Therefore 2D rotations inside the front view are rotations around the Y axis, not around Z. Use rotation_euler = (0, angle, 0) for 2D component orientation in the front projection. Z rotation spins objects into/out of screen-space incorrectly for X/Z-plane meshes.

Sources distilled

  • Blender Image Empty/reference image controls for orthographic blueprints.
  • OpenCV homography/alignment and geometric transforms for view registration.
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 41 lines · 59 tokens per session scan A 5d165a26d7c2

Subscribe to this mod's changes

orthographic-registration is a skill published in the GitHub repository RobLe3/cc-blender-skill (58 stars, last pushed 4mo ago), licensed MIT. It adds 59 tokens to every session and 432 once invoked, about $0.0003 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 2026-08-30.