---
title: default
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/blendshapeweightsset/default
---

# default

The blend shape weights data set that drives the model.

## Declaration

```swift
var `default`: BlendShapeWeightsSet.Element? { get set }
```

## Discussion

Discussion This is equivalent to reading blendWeights.