207 lines
5.5 KiB
Markdown
207 lines
5.5 KiB
Markdown
---
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name: probuilder-delete-faces
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description: Delete selected faces from a `ProBuilderMesh`, creating holes or removing geometry. Supply either `faceIndices` (explicit list) or `faceDirection` (semantic selection); exactly one is required.
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metadata:
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generated-by: mcp-plugin-dotnet
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---
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# Delete ProBuilder faces
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Delete selected faces from a `ProBuilderMesh`, creating holes or removing geometry entirely. Faces can be selected explicitly by index or semantically by direction.
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## Inputs
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- `gameObjectRef` — the GameObject hosting the `ProBuilderMesh` component.
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- `faceIndices` — explicit array of face indices to delete. Use 'probuilder-get-mesh-info' to discover valid indices.
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- `faceDirection` — semantic alternative (`Up`, `Down`, `Left`, `Right`, `Forward`, `Back`). Exactly one of `faceIndices` / `faceDirection` is required.
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## Examples
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- Delete the bottom face: `faceDirection="down"`.
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- Delete specific faces: `faceIndices=[0, 2, 4]`.
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## Behavior
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The mesh is rebuilt (`ToMesh` → `Refresh`), the `ProBuilderMesh` and GameObject are marked dirty, and Editor windows repaint. The whole call runs on the Unity main thread.
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## How to Call
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```bash
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unity-mcp-cli run-tool probuilder-delete-faces --input '{
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"gameObjectRef": "string_value",
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"faceIndices": "string_value",
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"faceDirection": "string_value"
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}'
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```
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> For complex input (multi-line strings, code), save the JSON to a file and use:
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> ```bash
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> unity-mcp-cli run-tool probuilder-delete-faces --input-file args.json
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> ```
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>
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> Or pipe via stdin (recommended):
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> ```bash
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> unity-mcp-cli run-tool probuilder-delete-faces --input-file - <<'EOF'
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> {"param": "value"}
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> EOF
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> ```
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### Troubleshooting
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If `unity-mcp-cli` is not found, either install it globally (`npm install -g unity-mcp-cli`) or use `npx unity-mcp-cli` instead.
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Read the /unity-initial-setup skill for detailed installation instructions.
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## Input
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| Name | Type | Required | Description |
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|------|------|----------|-------------|
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| `gameObjectRef` | `any` | Yes | Reference to the GameObject with a ProBuilderMesh component. |
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| `faceIndices` | `any` | No | Array of face indices to delete. Use this OR faceDirection, not both. Use ProBuilder_GetMeshInfo to get valid face indices. |
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| `faceDirection` | `any` | No | Semantic face selection by direction. Use this OR faceIndices, not both. |
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### Input JSON Schema
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```json
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{
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"type": "object",
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"properties": {
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"gameObjectRef": {
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"$ref": "#/$defs/AIGD.GameObjectRef"
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},
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"faceIndices": {
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"$ref": "#/$defs/System.Int32-1"
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},
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"faceDirection": {
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"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.FaceDirection"
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}
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},
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"$defs": {
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"UnityEngine.EntityId": {
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"type": "string",
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"pattern": "^[0-9]+$"
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},
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"System.Type": {
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"type": "string"
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},
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"AIGD.GameObjectRef": {
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"type": "object",
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"properties": {
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"instanceID": {
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"$ref": "#/$defs/UnityEngine.EntityId",
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"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)"
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},
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"path": {
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"type": "string",
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"description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
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},
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"name": {
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"type": "string",
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"description": "Name of a GameObject in hierarchy. Priority: 3."
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},
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"assetType": {
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"$ref": "#/$defs/System.Type",
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"description": "Type of the asset."
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},
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"assetPath": {
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"type": "string",
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"description": "Path to the asset within the project. Starts with 'Assets/'"
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},
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"assetGuid": {
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"type": "string",
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"description": "Unique identifier for the asset."
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}
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},
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"required": [
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"instanceID"
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],
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"description": "Find GameObject in opened Prefab or in the active Scene."
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},
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"System.Int32-1": {
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"type": "array",
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"items": {
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"type": "integer"
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}
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},
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"com.IvanMurzak.Unity.MCP.Editor.API.FaceDirection": {
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"type": "string",
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"enum": [
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"Up",
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"Down",
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"Left",
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"Right",
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"Forward",
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"Back"
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]
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}
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},
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"required": [
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"gameObjectRef"
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]
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}
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```
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## Output
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### Output JSON Schema
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```json
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{
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"type": "object",
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"properties": {
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"result": {
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"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder-DeleteFacesResponse"
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}
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},
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"$defs": {
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"System.Int32-1": {
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"type": "array",
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"items": {
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"type": "integer"
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}
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},
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"com.IvanMurzak.Unity.MCP.Editor.API.Tool_ProBuilder-DeleteFacesResponse": {
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"type": "object",
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"properties": {
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"deletedFaceCount": {
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"type": "integer"
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},
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"selectionMethod": {
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"type": "string"
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},
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"deletedFaceIndices": {
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"$ref": "#/$defs/System.Int32-1"
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},
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"facesRemoved": {
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"type": "integer"
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},
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"verticesRemoved": {
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"type": "integer"
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},
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"totalFaceCount": {
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"type": "integer"
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},
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"totalVertexCount": {
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"type": "integer"
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},
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"totalEdgeCount": {
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"type": "integer"
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}
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},
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"required": [
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"deletedFaceCount",
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"facesRemoved",
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"verticesRemoved",
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"totalFaceCount",
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"totalVertexCount",
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"totalEdgeCount"
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]
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}
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},
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"required": [
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"result"
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]
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}
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```
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