download_polyhaven_asset
Download Polyhaven assets directly into Blender by specifying asset ID, type, resolution, and optional file format. Simplifies 3D project integration with curated HDRI, textures, and models.
Instructions
Download and import a Polyhaven asset into Blender.
Parameters:
asset_id: The ID of the asset to download
asset_type: The type of asset (hdris, textures, models)
resolution: The resolution to download (e.g., 1k, 2k, 4k)
file_format: Optional file format (e.g., hdr, exr for HDRIs; jpg, png for textures; gltf, fbx for models)
Returns a message indicating success or failure.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| asset_id | Yes | ||
| asset_type | Yes | ||
| file_format | No | ||
| resolution | No | 1k |
Implementation Reference
- src/blender_mcp/server.py:411-461 (handler)The handler function for the 'download_polyhaven_asset' MCP tool. It validates inputs via docstring schema, connects to Blender addon, sends the download command with parameters, and formats success/error responses with asset-type specific messages.@mcp.tool() def download_polyhaven_asset( ctx: Context, asset_id: str, asset_type: str, resolution: str = "1k", file_format: str = None ) -> str: """ Download and import a Polyhaven asset into Blender. Parameters: - asset_id: The ID of the asset to download - asset_type: The type of asset (hdris, textures, models) - resolution: The resolution to download (e.g., 1k, 2k, 4k) - file_format: Optional file format (e.g., hdr, exr for HDRIs; jpg, png for textures; gltf, fbx for models) Returns a message indicating success or failure. """ try: blender = get_blender_connection() result = blender.send_command("download_polyhaven_asset", { "asset_id": asset_id, "asset_type": asset_type, "resolution": resolution, "file_format": file_format }) if "error" in result: return f"Error: {result['error']}" if result.get("success"): message = result.get("message", "Asset downloaded and imported successfully") # Add additional information based on asset type if asset_type == "hdris": return f"{message}. The HDRI has been set as the world environment." elif asset_type == "textures": material_name = result.get("material", "") maps = ", ".join(result.get("maps", [])) return f"{message}. Created material '{material_name}' with maps: {maps}." elif asset_type == "models": return f"{message}. The model has been imported into the current scene." else: return message else: return f"Failed to download asset: {result.get('message', 'Unknown error')}" except Exception as e: logger.error(f"Error downloading Polyhaven asset: {str(e)}") return f"Error downloading Polyhaven asset: {str(e)}"
- src/blender_mcp/server.py:411-411 (registration)The @mcp.tool() decorator registers this function as an MCP tool named 'download_polyhaven_asset'.@mcp.tool()
- src/blender_mcp/server.py:422-428 (schema)Input schema defined in the function docstring for FastMCP parameter extraction.Parameters: - asset_id: The ID of the asset to download - asset_type: The type of asset (hdris, textures, models) - resolution: The resolution to download (e.g., 1k, 2k, 4k) - file_format: Optional file format (e.g., hdr, exr for HDRIs; jpg, png for textures; gltf, fbx for models) Returns a message indicating success or failure.
- src/blender_mcp/server.py:884-884 (helper)Usage instructions for the tool in the asset_creation_strategy prompt.- For objects/models: Use download_polyhaven_asset() with asset_type="models"