Unity AI ProBuilder

AI-powered 3D modeling tools for Unity ProBuilder. Enables AI assistants to create and manipulate editable meshes through natural language commands. Create primitive shapes, extrude faces, bevel edges, apply materials, merge objects, and perform advanced mesh operations like bridging and subdivision. Supports semantic face selection by direction (up, down, left, right) for intuitive editing. Perfect for rapid level prototyping and procedural geometry generation. Built on top of the AI Game Developer platform.

How to use

• Instructions
• Video Tutorial for Visual Studio Code
• Video Tutorial for Visual Studio

Stability status

Unity Version	Editmode	Playmode	Standalone
2022.3.62f3
2023.2.22f1
6000.3.1f1

AI ProBuilder Tools

Core tools:

• probuilder-create-shape - Create primitive shapes (cube, sphere, cylinder, etc.)
• probuilder-get-mesh-info - Read mesh data (faces, vertices, edges)
• probuilder-extrude - Extrude faces with various methods
• probuilder-bevel - Bevel edges
• probuilder-delete-faces - Delete faces by index or direction
• probuilder-set-face-material - Apply materials to specific faces

Mesh operations:

• probuilder-flip-normals - Reverse face normals
• probuilder-set-pivot - Change mesh pivot point
• probuilder-merge-objects - Combine multiple ProBuilder meshes

Edge operations:

• probuilder-subdivide-edges - Add vertices to edges
• probuilder-connect-edges - Connect edges with new geometry
• probuilder-bridge - Bridge between edge selections

Advanced:

• probuilder-create-poly-shape - Create custom polygon-based meshes

Installation

Option 1 - Installer

• ⬇️ Download Installer
• 📂 Import installer into Unity project

  • You can double-click on the file - Unity will open it automatically
  • OR: Open Unity Editor first, then click on Assets/Import Package/Custom Package, and choose the file

Option 2 - OpenUPM-CLI

• ⬇️ Install OpenUPM-CLI
• 📟 Open the command line in your Unity project folder

openupm add com.ivanmurzak.unity.mcp.probuilder