116 lines
3.6 KiB
Markdown
116 lines
3.6 KiB
Markdown
---
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name: screenshot-camera
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description: Capture a screenshot from a Unity `Camera` and return it as a PNG image for direct LLM inspection. Falls back to `Camera.main` (then any active camera) when `cameraRef` is null. Width and height are capped to keep response size manageable.
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---
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# Screenshot / Camera
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Captures a screenshot from a camera and returns it as an image. If no camera is specified, uses the Main Camera. Returns the image directly for visual inspection by the LLM.
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## Inputs
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- `cameraRef` (optional) — reference to a GameObject hosting a `Camera`. When null, `Camera.main` is used; if there is no main camera, the first entry of `Camera.allCameras` is used.
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- `width` (default 1920) / `height` (default 1080) — output pixels. Must be > 0 and ≤ `MaxDimension`.
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## Behavior
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Allocates a temporary `RenderTexture`, swaps it onto the chosen camera, calls `Camera.Render`, reads back via `Texture2D.ReadPixels`, encodes as PNG, and restores the camera's prior `targetTexture`. Returns a `ResponseCallTool.Image` with `image/png` MIME and a descriptive caption.
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## How to Call
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```bash
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unity-mcp-cli run-tool screenshot-camera --input '{
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"cameraRef": "string_value",
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"width": 0,
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"height": 0
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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 screenshot-camera --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 screenshot-camera --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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| `cameraRef` | `any` | No | Reference to the camera GameObject. If not specified, uses the Main Camera. |
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| `width` | `integer` | No | Width of the screenshot in pixels. |
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| `height` | `integer` | No | Height of the screenshot in pixels. |
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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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"cameraRef": {
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"$ref": "#/$defs/AIGD.GameObjectRef"
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},
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"width": {
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"type": "integer"
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},
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"height": {
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"type": "integer"
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}
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},
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"$defs": {
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"System.Type": {
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"type": "string"
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},
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"AIGD.GameObjectRef": {
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"type": "object",
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"properties": {
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"instanceID": {
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"type": "integer",
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"description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
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},
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"path": {
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"type": "string",
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"description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
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},
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"name": {
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"type": "string",
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"description": "Name of a GameObject in hierarchy. Priority: 3."
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},
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"assetType": {
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"$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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}
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}
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```
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## Output
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This tool does not return structured output.
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