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probuilder-create-poly-shape

Create a 3D `ProBuilderMesh` from a 2D polygon outline (x,z points) extruded upward by `height`. Perfect for floor plans, room layouts, terrain patches, walls, platforms — any shape definable by a 2D outline. Requires ≥3 points.

generated-by
mcp-plugin-dotnet

Create a ProBuilder shape from polygon points

Create a 3D ProBuilderMesh from a 2D polygon outline (x,z points) extruded upward by height. Perfect for:

Floor plans and room layouts.
Custom terrain patches.
Architectural elements (walls, platforms).
Any shape that can be defined by a 2D outline.

Inputs

points — array of 2D points as [x, z]. Minimum 3 points; should be in clockwise or counter-clockwise order.
height — extrusion height upward (Y axis). Default 1.
name — optional GameObject name.
parentGameObjectRef — optional parent; root of the scene when omitted.
position, rotation — optional Vector3 transform values (rotation in euler degrees).
flipNormals — when true, flip the resulting face normals so the shape points inward.
isLocalSpace — when true, position/rotation are interpreted in the parent's local space.

Examples

Rectangle: points=[[0,0], [4,0], [4,3], [0,3]], height=2.5.
L-shape: points=[[0,0], [3,0], [3,2], [1,2], [1,3], [0,3]], height=3.
Triangle: points=[[0,0], [2,0], [1,1.7]], height=1.

How to Call

unity-mcp-cli run-tool probuilder-create-poly-shape --input '{
  "points": "string_value",
  "height": 0,
  "name": "string_value",
  "parentGameObjectRef": "string_value",
  "position": "string_value",
  "rotation": "string_value",
  "flipNormals": false,
  "isLocalSpace": false
}'

For complex input (multi-line strings, code), save the JSON to a file and use:
unity-mcp-cli run-tool probuilder-create-poly-shape --input-file args.json
Or pipe via stdin (recommended):
unity-mcp-cli run-tool probuilder-create-poly-shape --input-file - <<'EOF'
{"param": "value"}
EOF

Troubleshooting

If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead. Read the /unity-initial-setup skill for detailed installation instructions.

Input

Name	Type	Required	Description
`points`	`any`	Yes	2D polygon points as [x,z] coordinates. Minimum 3 points. Points should be in clockwise or counter-clockwise order. Example: 0,0], [4,0], [4,3], [0,3 creates a 4x3 rectangle.
`height`	`number`	No	Height to extrude the polygon upward. Default is 1.
`name`	`string`	No	Name of the new GameObject.
`parentGameObjectRef`	`any`	No	Parent GameObject reference. If not provided, the shape will be created at the root of the scene.
`position`	`any`	No	Position of the shape in world or local space.
`rotation`	`any`	No	Rotation of the shape in euler angles (degrees).
`flipNormals`	`boolean`	No	If true, flip the normals so the faces point inward instead of outward.
`isLocalSpace`	`boolean`	No	If true, position/rotation are in local space relative to parent.

Input JSON Schema

{
  "type": "object",
  "properties": {
    "points": {
      "$ref": "#/$defs/System.Single-1-1"
    },
    "height": {
      "type": "number"
    },
    "name": {
      "type": "string"
    },
    "parentGameObjectRef": {
      "$ref": "#/$defs/AIGD.GameObjectRef"
    },
    "position": {
      "$ref": "#/$defs/UnityEngine.Vector3"
    },
    "rotation": {
      "$ref": "#/$defs/UnityEngine.Vector3"
    },
    "flipNormals": {
      "type": "boolean"
    },
    "isLocalSpace": {
      "type": "boolean"
    }
  },
  "$defs": {
    "System.Single-1": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "System.Single-1-1": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/System.Single-1"
      }
    },
    "UnityEngine.EntityId": {
      "type": "string",
      "pattern": "^[0-9]+$"
    },
    "System.Type": {
      "type": "string"
    },
    "AIGD.GameObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "$ref": "#/$defs/UnityEngine.EntityId",
          "description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
        },
        "path": {
          "type": "string",
          "description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
        },
        "name": {
          "type": "string",
          "description": "Name of a GameObject in hierarchy. Priority: 3."
        },
        "assetType": {
          "$ref": "#/$defs/System.Type",
          "description": "Type of the asset."
        },
        "assetPath": {
          "type": "string",
          "description": "Path to the asset within the project. Starts with 'Assets/'"
        },
        "assetGuid": {
          "type": "string",
          "description": "Unique identifier for the asset."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Find GameObject in opened Prefab or in the active Scene."
    },
    "UnityEngine.Vector3": {
      "type": "object",
      "properties": {
        "x": {
          "type": "number"
        },
        "y": {
          "type": "number"
        },
        "z": {
          "type": "number"
        }
      },
      "required": [
        "x",
        "y",
        "z"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "points"
  ]
}

Output

Output JSON Schema

{
  "type": "object",
  "properties": {
    "result": {
      "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder-CreatePolyShapeResponse"
    }
  },
  "$defs": {
    "UnityEngine.EntityId": {
      "type": "string",
      "pattern": "^[0-9]+$"
    },
    "System.Collections.Generic.List(com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder-PointInfo)": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder-PointInfo"
      }
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder-PointInfo": {
      "type": "object",
      "properties": {
        "index": {
          "type": "integer"
        },
        "x": {
          "type": "number"
        },
        "z": {
          "type": "number"
        }
      },
      "required": [
        "index",
        "x",
        "z"
      ]
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder-CreatePolyShapeResponse": {
      "type": "object",
      "properties": {
        "gameObjectName": {
          "type": "string"
        },
        "instanceId": {
          "$ref": "#/$defs/UnityEngine.EntityId"
        },
        "position": {
          "type": "string"
        },
        "rotation": {
          "type": "string"
        },
        "pointCount": {
          "type": "integer"
        },
        "height": {
          "type": "number"
        },
        "flipNormals": {
          "type": "boolean"
        },
        "boundsSize": {
          "type": "string"
        },
        "faceCount": {
          "type": "integer"
        },
        "vertexCount": {
          "type": "integer"
        },
        "edgeCount": {
          "type": "integer"
        },
        "inputPoints": {
          "$ref": "#/$defs/System.Collections.Generic.List(com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder-PointInfo)"
        }
      },
      "required": [
        "instanceId",
        "pointCount",
        "height",
        "flipNormals",
        "faceCount",
        "vertexCount",
        "edgeCount"
      ]
    }
  },
  "required": [
    "result"
  ]
}

7.8 KiB Raw Blame History