Image to Three.js Model
img2threejs/img2threejs
Rebuilds the object in a reference image as a procedural, animation-ready Three.js model written entirely in code, using staged sculpting with quality checks.
Model editable meshes with ProBuilder for blockout. An agent skill from Besty0728/Unity-Skills.
Install Unity Probuilder
$ npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Besty0728/Unity-Skills unity-probuilder --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Besty0728/Unity-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/'SkillsForUnity/unity-skills~/skills/probuilder' .claude/skills/unity-probuilder && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "unity-probuilder" agent skill from https://github.com/Besty0728/Unity-Skills/tree/main/SkillsForUnity/unity-skills~/skills/probuilder into .claude/skills/unity-probuilder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-probuilder", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Besty0728/Unity-Skills/tree/main/SkillsForUnity/unity-skills~/skills/probuilderType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Besty0728/Unity-Skills unity-probuilder --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Besty0728/Unity-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/'SkillsForUnity/unity-skills~/skills/probuilder' .agents/skills/unity-probuilder && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "unity-probuilder" agent skill from https://github.com/Besty0728/Unity-Skills/tree/main/SkillsForUnity/unity-skills~/skills/probuilder into .agents/skills/unity-probuilder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-probuilder", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Besty0728/Unity-Skills unity-probuilder --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Besty0728/Unity-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/'SkillsForUnity/unity-skills~/skills/probuilder' .cursor/skills/unity-probuilder && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "unity-probuilder" agent skill from https://github.com/Besty0728/Unity-Skills/tree/main/SkillsForUnity/unity-skills~/skills/probuilder into .cursor/skills/unity-probuilder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-probuilder", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Besty0728/Unity-Skills.git --path 'SkillsForUnity/unity-skills~/skills/probuilder'--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Besty0728/Unity-Skills unity-probuilder --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Besty0728/Unity-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/'SkillsForUnity/unity-skills~/skills/probuilder' .gemini/skills/unity-probuilder && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "unity-probuilder" agent skill from https://github.com/Besty0728/Unity-Skills/tree/main/SkillsForUnity/unity-skills~/skills/probuilder into .gemini/skills/unity-probuilder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-probuilder", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Besty0728/Unity-Skills unity-probuilderInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Besty0728/Unity-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/'SkillsForUnity/unity-skills~/skills/probuilder' .github/skills/unity-probuilder && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "unity-probuilder" agent skill from https://github.com/Besty0728/Unity-Skills/tree/main/SkillsForUnity/unity-skills~/skills/probuilder into .github/skills/unity-probuilder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-probuilder", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Besty0728/Unity-Skills unity-probuilder --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Besty0728/Unity-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/'SkillsForUnity/unity-skills~/skills/probuilder' .opencode/skills/unity-probuilder && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "unity-probuilder" agent skill from https://github.com/Besty0728/Unity-Skills/tree/main/SkillsForUnity/unity-skills~/skills/probuilder into .opencode/skills/unity-probuilder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-probuilder", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
unity-probuilder- GitHub stars
- 1.8k
- Token cost
- ~1.8k tokens
- SKILL.md length
- 672 words
- Files
- 2
- Skills in repo
- 82
- Repo updated
- First seen
- Licence
- MIT
At a glance
Model editable meshes with ProBuilder for blockout. An agent skill from Besty0728/Unity-Skills.
- Works in 5 steps: Create major volumes with… → Verify traversal and gameplay scale… → Refine surfaces with face/edge operations. → …
- Game Development work in your project
- SKILL.md covers Triggers, Guardrails, Object Targeting and Skills, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Unity Probuilder is an agent skill from Besty0728/Unity-Skills. Model editable meshes with ProBuilder for blockout
Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `MODELING_REFERENCE.md`).
It sits in Game Development. The repository describes itself as: AI automation skills specifically designed for Unity. The licence is MIT.
When your agent uses it
- Game Development work in your project
Example prompts
- “/unity-probuilder”
Requirements
- Python 3
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Create major volumes with probuilder_create_batch.
- Verify traversal and gameplay scale before adding detail.
- Refine surfaces with face/edge operations.
- Use vertex edits for ramps, slopes, and irregular silhouettes.
- Apply quick colors or real materials after layout stabilizes.
What it can do on your machine
Read from SKILL.md and the folder at commit 12a40e4. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are python).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Unity Probuilder loads about 1.8k tokens when it runs. Until then it costs about 17 tokens; SKILL.md has 672 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from Besty0728/Unity-Skills at commit 12a40e4, republished under its MIT licence (© Besty0728). 672 words, ~1,764 tokens.
Download SKILL.mdSave it as
.claude/skills/unity-probuilder/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- unity-probuilder
- description
- Model editable meshes with ProBuilder for blockout
Before calling any skill in this module: if you are about to call a skill with parameters guessed from its name or description, STOP — read this file (or fetch its schema via
GET /skills/recommend?includeSchema=true) first. If you already have the parameter definitions from recommend/schema, you may proceed straight to dryRun.
Triggers
- Blocking out levels
- Building or editing ProBuilder geometry
- Prototyping shapes in-editor
- 搭建关卡灰盒、创建或编辑 ProBuilder 几何体、在编辑器内快速搭形
Unity ProBuilder Skills
Use this module for editable ProBuilder meshes, not regular primitive GameObjects. It is best for blockout, level geometry, and procedural mesh refinement.
Requires:
com.unity.probuilderpackage. Batch-first: For scene blockout or level generation, preferprobuilder_create_batchwhen creating2+shapes.
Guardrails
Operating Mode (v1.9 three-tier):
- Approval (default): query skills (e.g.
probuilder_get_info,probuilder_get_vertices) run directly. Create/modify skills are FullAuto — call once, getMODE_RESTRICTED, run the grant protocol; a successful/permission/grantexecutes the skill server-side and returns the result in the same response. - Auto / Bypass: SemiAuto and FullAuto run directly.
- Auto-forbidden in this module:
probuilder_combine_meshes(SkillOperation.Modify | Delete, theDeletebit triggers NeverInSemi). It is callable only under Bypass mode or after the user adds it to the Allowlist; the grant flow returnsMODE_FORBIDDEN. Noteprobuilder_delete_facesisOperation = SkillOperation.Modifyonly and remains grantable under Approval/Auto. - When
com.unity.probuilderis missing, every skill returns a package-missing diagnostic instead of executing.
DO NOT (common hallucinations):
probuilder_create_meshdoes not exist -> useprobuilder_create_shapeprobuilder_edit_facedoes not exist -> use the specific face skills such asprobuilder_extrude_faces,probuilder_delete_faces,probuilder_merge_facesprobuilder_set_materialandprobuilder_set_face_materialare different -> whole object vs selected faces- Regular meshes do not become ProBuilder meshes automatically
- Mesh rebuild calls (
ToMesh()+Refresh()) are already handled by the skills. Do not invent a manual rebuild step
Routing:
- For ordinary primitive objects without editable topology -> use
gameobject_create - For material asset creation or shader work -> use
material - For large blockout generation -> combine this module with
materialandlight, but keep geometry creation here
Object Targeting
Most edit/query skills accept one of:
nameinstanceIdpath
Prefer instanceId when multiple scene objects share the same name.
Skills
Create and Batch
| Skill | Use | Key parameters |
|---|---|---|
probuilder_create_shape | Create a parametric ProBuilder shape | shape, name?, x/y/z?, sizeX/Y/Z?, rotX/Y/Z? |
probuilder_create_batch | Create multiple shapes in one call | items, defaultParent? |
Supported shape values: Cube, Sphere, Cylinder, Cone, Torus, Prism, Arch, Pipe, Stairs, Door, Plane.
Show full SKILL.md (303 more words)Show less
Face and Edge Editing
| Skill | Use | Key parameters |
|---|---|---|
probuilder_extrude_faces | Extrude selected faces | target, faceIndexes?, distance?, method? |
probuilder_delete_faces | Delete faces by index | target, faceIndexes |
probuilder_merge_faces | Merge faces into one | target, faceIndexes? |
probuilder_flip_normals | Reverse face direction | target, faceIndexes? |
probuilder_detach_faces | Split faces from shared vertices | target, faceIndexes?, deleteSourceFaces? |
probuilder_bevel_edges | Chamfer edges | target, edgeIndexes?, amount? |
probuilder_extrude_edges | Extrude edges outward | target, edgeIndexes, distance?, extrudeAsGroup? |
probuilder_bridge_edges | Bridge two edges with new face | target, edgeA, edgeB, allowNonManifold? |
Mesh, Vertex, UV, Material
| Skill | Use | Key parameters |
|---|---|---|
probuilder_subdivide | Add detail by subdivision | target, faceIndexes? |
probuilder_conform_normals | Make normals point consistently outward | target, faceIndexes? |
probuilder_move_vertices | Offset vertices by delta | target, vertexIndexes, deltaX/Y/Z? |
probuilder_set_vertices | Set absolute vertex positions | target, vertices |
probuilder_get_vertices | Query vertex positions | target, vertexIndexes?, verbose? |
probuilder_weld_vertices | Merge close vertices | target, vertexIndexes, radius? |
probuilder_project_uv | Box-project UVs | target, faceIndexes?, channel? |
probuilder_set_face_material | Assign material to faces | target, faceIndexes?, materialPath?, submeshIndex? |
probuilder_set_material | Assign whole-object material or quick color | target, materialPath?, r/g/b/a? |
probuilder_combine_meshes | Merge multiple meshes | names |
Query and Pivot
| Skill | Use | Key parameters |
|---|---|---|
probuilder_get_info | Get face/vertex/material stats | target |
probuilder_center_pivot | Center or reposition pivot | target, worldX/Y/Z? |
Blockout Workflow
- Create major volumes with
probuilder_create_batch. - Verify traversal and gameplay scale before adding detail.
- Refine surfaces with face/edge operations.
- Use vertex edits for ramps, slopes, and irregular silhouettes.
- Apply quick colors or real materials after layout stabilizes.
Minimal Example
import unity_skills
unity_skills.call_skill("probuilder_create_batch", items=[
{"shape": "Cube", "name": "Ground", "sizeX": 20, "sizeY": 0.5, "sizeZ": 12, "y": -0.25},
{"shape": "Cube", "name": "Platform_A", "sizeX": 3, "sizeY": 0.3, "sizeZ": 3, "x": 4, "y": 1.5},
{"shape": "Cube", "name": "Ramp", "sizeX": 3, "sizeY": 1, "sizeZ": 5, "x": 8, "y": 0.5}
])
unity_skills.call_skill("probuilder_move_vertices",
name="Ramp",
vertexIndexes="4,5",
deltaY=-0.8
)
unity_skills.call_skill("probuilder_set_material",
name="Platform_A",
r=0.2, g=0.6, b=1.0
)Important Notes
- ProBuilder objects keep editable topology through
ProBuilderMesh. - Use
probuilder_get_infobefore face edits andprobuilder_get_verticesbefore vertex edits. - MeshCollider on physics-driven props must be convex.
- Quick color assignment is fine for prototype passes; use material assets for production.
- Package missing errors are expected if ProBuilder is not installed.
Exact Signatures
Exact names, parameters, defaults, and returns are defined by GET /skills/schema or unity_skills.get_skill_schema(), not by this file.
Load MODELING_REFERENCE.md for scene design heuristics, furniture decomposition, detailed examples, and extended modeling tips.
© Besty0728, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in SkillsForUnity/unity-skills~/skills/probuilder of Besty0728/Unity-Skills.
- SKILL.md
- MODELING_REFERENCE.md
Open the folder on GitHubat commit 12a40e4
Compare with similar skills
Unity Probuilder next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Unity Probuilder this skillBesty0728/Unity-Skills | 1.8k | — | ~1.8k | Automated safety check: Pass | MIT | |
| Image to Three.js Modelimg2threejs/img2threejs | 18k | 1 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 | |
| Web CloneJane-xiaoer/claude-skill-web-clone | 1k | 1 repos | ~2.7k | Automated safety check: Pass | MIT | |
| Threejs Game Directormajidmanzarpour/threejs-game-skills | 2.4k | — | ~2.2k | Automated safety check: Pass | MIT | |
| Game Asset Generatorhtdt/godogen | 7.1k | — | ~2.8k | Automated safety check: Pass | MIT | |
| Threejs Gameplay Systemsvalkor-ai/loom | 1.2k | 1 repos | ~1.4k | Automated safety check: Pass | Apache-2.0 |
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Related
Categories
Questions about Unity Probuilder
What does Unity Probuilder do?
Model editable meshes with ProBuilder for blockout. An agent skill from Besty0728/Unity-Skills. Unity Probuilder is an agent skill from Besty0728/Unity-Skills.
When should I use Unity Probuilder?
Unity Probuilder fits situations like: game Development work in your project.
How do I install Unity Probuilder in Claude Code?
Run `npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a claude-code`. Or copy the skill folder (SkillsForUnity/unity-skills~/skills/probuilder in Besty0728/Unity-Skills) into .claude/skills/unity-probuilder in your project. Claude Code loads it when a task matches its description.
How do I install Unity Probuilder in Codex?
Run `npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a codex`. Or copy the skill folder (SkillsForUnity/unity-skills~/skills/probuilder in Besty0728/Unity-Skills) into .agents/skills/unity-probuilder in your project. Codex loads it when a task matches its description.
Can I use Unity Probuilder in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Besty0728/Unity-Skills --skill unity-probuilder -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/unity-probuilder, .gemini/skills/unity-probuilder, .github/skills/unity-probuilder and .opencode/skills/unity-probuilder in your project.
What does Unity Probuilder need to run?
SKILL.md names no scripts, command-line tools or credentials: Unity Probuilder is instructions for the agent only. Our summary lists: Python 3.
Does Unity Probuilder access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Unity Probuilder safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Unity Probuilder use?
Unity Probuilder is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Unity Probuilder use?
About 1.8k tokens (SKILL.md is roughly 7.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Unity Probuilder?
Skills that share tags, products or a category with Unity Probuilder: Image to Three.js Model (img2threejs/img2threejs, 18k stars), Web Clone (Jane-xiaoer/claude-skill-web-clone, 1k stars), Threejs Game Director (majidmanzarpour/threejs-game-skills, 2.4k stars) and Game Asset Generator (htdt/godogen, 7.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Unity Probuilder?
Besty0728 (a GitHub user) maintains it in Besty0728/Unity-Skills, which has 1,814 GitHub stars. The repository holds 82 skills in this directory. The repository was last updated on October 6, 2026.
Source: Besty0728/Unity-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.