Generate Blender Assets

Before starting this tutorial, ensure you have:

• Unity installed with Coplay extension
• Python and pip installed on your system
• uv package manager installed (we’ll install this if needed)
• Basic familiarity with Unity and 3D modeling concepts

1. Download Blender: Visit blender.org and download the latest version for your operating system
2. Install Blender: Follow the standard installation process for your platform
3. Launch Blender: Start Blender to ensure it’s working correctly

The Blender MCP server requires the uv package manager for Python dependency management.

On macOS (using Homebrew):

brew install uv

On other platforms:

curl -LsSf https://astral.sh/uv/install.sh | sh

Verify installation:

uv --version

The Blender MCP server enables communication between Coplay and Blender through the Model Context Protocol.

1. Install using uv:

uvx blender-mcp

2. Verify the installation:

uvx blender-mcp --help

Start Blender and navigate to Edit > Preferences > Add-ons. Select “Install from Disk …” and choose the addon.py file from the blender-mcp directory you just installed. Enable the add-on by checking the box next to it.

Once configured, you should see the Blender MCP server connection active in Coplay.

The MCP server provides several tools for Blender automation:

• Scene creation and manipulation
• Object modeling and sculpting
• Material and texture application
• Lighting and camera setup
• Asset export functionality

Now we need to configure Coplay to connect to the Blender MCP server.

1. Open Coplay Settings: In Unity, go to Coplay > Toggle Window or press ⌘ + G (Mac) / Ctrl + G (PC)

2. Access MCP Configuration: Click the “Edit MCP Servers” button in the Coplay settings panel

3. Add Blender MCP Server: Add the following configuration to your MCP servers:

{
  "mcpServers": {
    "blender-mcp": {
      "command": "uvx",
      "args": [
        "blender-mcp"
      ],
      "env": {
        "PATH": "/opt/homebrew/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
      }
    }
  }
}

4. Save and Restart: Save the configuration and restart Coplay to establish the MCP connection

Now for the exciting part! Let’s create a beautiful 3D scene using natural language.

Use this prompt in Coplay:

Using Blender via MCP, create a low-poly cherry blossom garden.

The scene should include:
- Several cherry blossom trees with pink flowers
- A  garden path cuttng through the trees
- Some decorative stones areas
- Low-poly aesthetic for game-ready assets

Please organize the scene with proper materials and ensure all objects are named appropriately for Unity import.

As Coplay works with Blender through MCP, Coplay will provide status updates as it creates objects. Watch as Blender automatically creates your scene

What Coplay will do:

• Create base meshes for trees, paths, and landscape elements
• Apply appropriate materials and textures
• Set up lighting to enhance the garden atmosphere
• Organize objects into logical collections
• Prepare the scene for export

Once the initial creation is complete:

1. Open Blender: Switch to the Blender window to see your generated scene
2. Review the Assets: Examine the created geometry, materials, and lighting
3. Make Adjustments: Use Coplay to request modifications if needed

Example refinement prompts:

"Add more detail to the cherry blossom petals"
"Make the garden path more curved and organic"
"Adjust the lighting to be more golden hour"
"Add small decorative lanterns along the path"

Now let’s bring your Blender creation into Unity using Coplay.

Use this prompt:

Import the blender scene into Unity

Coplay will handle the entire import process, including:

• File format conversion
• Material translation
• Texture mapping
• Scene hierarchy setup

You should now have a beautiful cherry blossom garden in both Blender and Unity!

Take your 3D asset creation to the next level with these advanced techniques:

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Using Poly Haven Assets

Enhance your scenes with high-quality, free assets from Poly Haven:

"Using Blender MCP, download and integrate HDRIs from Poly Haven for realistic lighting in my cherry blossom garden. Add some rock textures and natural ground materials."

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Procedural Generation with Rodin

Generate unique 3D models using Rodin AI:

"Using Rodin via MCP, generate a traditional Japanese stone lantern model and integrate it into my Blender cherry blossom scene. Make it low-poly and game-ready."

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Dynamic Asset Variations

Create multiple variations of your assets:

"Create 5 different variations of cherry blossom trees with varying heights, branch patterns, and flower density. Ensure each has a unique silhouette for visual variety."

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Seasonal Adaptations

Transform your scene for different seasons:

"Adapt my cherry blossom garden for autumn - change the tree materials to orange and red leaves, add fallen leaves on the ground, and adjust lighting for a warmer, more golden atmosphere."