Changes the pivot (origin) point of a ProBuilder mesh. The mesh geometry is adjusted so the pivot moves without changing the visual position. Examples: - Center the pivot: pivotLocation=Center - Set pivot to first vertex: pivotLocation=FirstVertex - Set custom pivot: pivotLocation=Custom, customPosition=(0, 0, 0)
unity-mcp-cli run-tool probuilder-set-pivot --input '{
"gameObjectRef": "string_value",
"pivotLocation": "string_value",
"customPosition": "string_value"
}'
For complex input (multi-line strings, code), save the JSON to a file and use:
unity-mcp-cli run-tool probuilder-set-pivot --input-file args.jsonOr pipe via stdin (recommended):
unity-mcp-cli run-tool probuilder-set-pivot --input-file - <<'EOF' {"param": "value"} EOF
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.
| Name | Type | Required | Description |
|---|---|---|---|
gameObjectRef | any | Yes | Reference to the GameObject with a ProBuilderMesh component. |
pivotLocation | string | No | Where to place the pivot. |
customPosition | any | No | Custom world position for pivot (only used when pivotLocation=Custom). |
{
"type": "object",
"properties": {
"gameObjectRef": {
"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Runtime.Data.GameObjectRef"
},
"pivotLocation": {
"type": "string",
"enum": [
"Center",
"FirstVertex",
"Custom"
]
},
"customPosition": {
"$ref": "#/$defs/UnityEngine.Vector3"
}
},
"$defs": {
"System.Type": {
"type": "string"
},
"com.IvanMurzak.Unity.MCP.Runtime.Data.GameObjectRef": {
"type": "object",
"properties": {
"instanceID": {
"type": "integer",
"description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
},
"path": {
"type": "string",
"description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
},
"name": {
"type": "string",
"description": "Name of a GameObject in hierarchy. Priority: 3."
},
"assetType": {
"$ref": "#/$defs/System.Type",
"description": "Type of the asset."
},
"assetPath": {
"type": "string",
"description": "Path to the asset within the project. Starts with 'Assets/'"
},
"assetGuid": {
"type": "string",
"description": "Unique identifier for the asset."
}
},
"required": [
"instanceID"
],
"description": "Find GameObject in opened Prefab or in the active Scene."
},
"UnityEngine.Vector3": {
"type": "object",
"properties": {
"x": {
"type": "number"
},
"y": {
"type": "number"
},
"z": {
"type": "number"
}
},
"required": [
"x",
"y",
"z"
],
"additionalProperties": false
}
},
"required": [
"gameObjectRef"
]
}
{
"type": "object",
"properties": {
"result": {
"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder+SetPivotResponse"
}
},
"$defs": {
"com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder+SetPivotResponse": {
"type": "object",
"properties": {
"pivotLocation": {
"type": "string"
},
"oldPivot": {
"type": "string"
},
"newPivot": {
"type": "string"
},
"offsetApplied": {
"type": "string"
},
"gameObjectName": {
"type": "string"
},
"newPosition": {
"type": "string"
}
}
}
},
"required": [
"result"
]
}