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# SceneRealityCoordinateSpace

The coordinate space that represents the center of a RealityKit scene.

```
struct SceneRealityCoordinateSpace
```

## Overview

The center, or origin, of a RealityKit scene varies depending on the
platform and context:

- visionOS (Window or Volume): The origin is a point that extends outward from the window, or upward from the volume.
- visionOS (Immersive Space): The origin is the <doc://com.apple.documentation/documentation/ARKit> world origin,
  which does not directly relate to any specific [`RealityView`](/documentation/RealityKit/RealityView), but rather to the
  broader immersive environment.
- macOS and iOS (Non-AR): The origin is a point behind the RealityView.
  Here, the [`RealityView`](/documentation/RealityKit/RealityView) acts as a window through which you can view the scene,
  and the scene’s origin is placed behind this by default, giving depth to the scene.
- iOS (AR Mode): Similar to the Immersive Space in visionOS, ARKit determines the world origin,
  and does not directly relate to the [`RealityView`](/documentation/RealityKit/RealityView) position.

> Note: This object is equivalent to
> ``doc://com.apple.RealityKit/documentation/RealityKit/RealityCoordinateSpace/scene``.

## Topics

### Initializers

[`init()`](/documentation/RealityKit/SceneRealityCoordinateSpace/init())

Creates a scene coordinate space.

## Relationships

### Conforms To

[`RealityCoordinateSpace`](/documentation/RealityKit/RealityCoordinateSpace)

---

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