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# Game.setCurrentCamera()

[Current camera](https://rustic-game-engine.pages.dev/markdown/api/camera.md)

## Compatibility

**Supported languages:** C, C++, C#, Python, JavaScript, Lua 5.4, Luau, Java, PHP and HTML/inline JavaScript (binding spellings and return shapes differ).

Use a compatible native engine build and the language tools required by your binding. This does not establish browser/mobile export or release qualification for every OS.

The signature below is the shared reference notation; language examples show the actual binding syntax. Question marks mark optional arguments and explicit defaults are shown where recorded. Do not copy reference notation as a typed declaration.

See [Feature status and compatibility](https://rustic-game-engine.pages.dev/markdown/reference/compatibility.md) for API 1.0/1.1 and per-method restrictions. Engine release tags and Docs v0.1 are independent versions.

## Signature

`Game.setCurrentCamera(source)`

## Setup and usage

Call when gameplay changes viewpoints—vehicles, players, cutscenes, or returning to the main camera. Do not call every frame when unchanged.

## Parameters

| Variable | Type | Required | Description |
| --- | --- | --- | --- |
| `source` | string or camera reference | Yes | Stable camera entity ID or scene path. |

## Return and timing

No camera object. Lua selects immediately in the Play world; JavaScript/Web defer the selection until callback completion or a synchronous query flush, including canonical scene-target resolution. External SDK commands commit at callback completion or query flush. Rendering observes the resulting active camera.

## Execution behavior

Core write timing differs between immediate Lua host calls, deferred JavaScript/Web commands and external SDK query flushes. Scheduled actions advance with the scene clock; synchronous queries evaluate at the call. Follow [execution rules](https://rustic-game-engine.pages.dev/markdown/guides/scripting.md#when-mutations-take-effect) and the return/timing notes for this category.

## Language examples

Use these snippets inside Start/on_start after generating the Programming Workspace and attaching the script. Python imports rustic, Game and instance from rustic; C++ includes rustic.hpp; C includes rustic.h; C# uses using static Rustic; Java runs inside a Rustic subclass; PHP declares global $rustic, $Game, $instance in its callback. HTML uses an inline script in a ui/ asset. See [Lifecycle callbacks](https://rustic-game-engine.pages.dev/markdown/callbacks.md) for complete registration examples. Public-property examples require a declared integer health property. Scene examples require the named objects to exist before Play.

### Lua 5.4

```lua
Game.setCurrentCamera('Game.scene.Room.Camera')
```

### JavaScript

```javascript
Game.setCurrentCamera('Game.scene.Room.Camera');
```

### Python

```python
Game.setCurrentCamera('Game.scene.Room.Camera')
```

### C++

```cpp
Game.setCurrentCamera("Game.scene.Room.Camera");
```

### C#

```csharp
Game.setCurrentCamera("Game.scene.Room.Camera");
```

### Luau

```lua
Game.setCurrentCamera('Game.scene.Room.Camera')
```

### C

```c
Game.setCurrentCamera("Game.scene.Room.Camera");
```

### Java

```java
Game.setCurrentCamera("Game.scene.Room.Camera");
```

### PHP

```php
$Game->setCurrentCamera('Game.scene.Room.Camera');
```

### HTML / inline JS

```javascript
Game.setCurrentCamera('Game.scene.Room.Camera');
```

## Shared Current camera constraints

- The target must resolve to a camera in the play snapshot.
- Every gameplay language calls the engine-owned API. Rustic supplies SDKs and dispatches callbacks; scripts do not parse requests or serialize responses. See the language guide for complete setup and callback registration.

## Errors and debugging

Read the constraints above and the Console diagnostic. Invalid types, non-finite values, stale targets or unavailable native services can fail validation. A failed callback disables the behavior; a failed source reload keeps the last good instance. Exact error messages depend on the language adapter. See [Troubleshooting](https://rustic-game-engine.pages.dev/markdown/troubleshooting.md).

## Related APIs



[All camera APIs](https://rustic-game-engine.pages.dev/markdown/api/camera.md)
