---
title: source
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/animationview/source
---

# source

The original animation that this structure modifies.

## Declaration

```swift
var source: (any AnimationDefinition)? { get set }
```

## See Also

### Configuring the animation view

- [name](realitykit/animationview/name.md)
- [bindTarget](realitykit/animationview/bindtarget.md)
- [blendLayer](realitykit/animationview/blendlayer.md)