---
title: isAdditive
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/blendtreeblendnode/isadditive
---

# isAdditive

A Boolean value that indicates whether the animation builds on the current state of the target entity or resets the state before running.

## Declaration

```swift
var isAdditive: Bool
```

## See Also

### Configuring the node

- [name](realitykit/blendtreeblendnode/name.md)
- [weight](realitykit/blendtreeblendnode/weight.md)