---
title: SCNCameraProjectionDirection.horizontal
framework: scenekit
role: symbol
role_heading: Case
path: scenekit/scncameraprojectiondirection/horizontal
---

# SCNCameraProjectionDirection.horizontal

The camera’s field of view or orthographic scale are measured horizontally.

## Declaration

```swift
case horizontal
```

## Discussion

Discussion If a camera’s projectionDirection property has this value: The fieldOfView property measures the horizontal viewing angle, and SceneKit automatically calculates the vertical angle according to the aspect ratio of the view presenting the scene. Or, if the camera uses an orthographic projection, the orthographicScale property measures the horizontal scale factor, and SceneKit automatically calculates the vertical factor according to  aspect ratio.

## See Also

### Projection Directions

- [SCNCameraProjectionDirection.vertical](scenekit/scncameraprojectiondirection/vertical.md)