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# USDPlayer.DeformationData.Update

Delta update carrying only the deformation fields that changed since the last frame.

```
struct Update
```

## Topics

### Instance Properties

[`let blendShapes: USDPlayer.DeformationData.BlendShapeData.Update?`](/documentation/USDKit/USDPlayer/DeformationData/Update/blendShapes)

Changed blend shape data.

[`let id: USDPlayer.DeformationID`](/documentation/USDKit/USDPlayer/DeformationData/Update/id)

Unique identifier for the deformation resource being updated.

[`let renormalization: USDPlayer.DeformationData.RenormalizationData.Update?`](/documentation/USDKit/USDPlayer/DeformationData/Update/renormalization)

Changed renormalization data.

[`let skinning: USDPlayer.DeformationData.SkinningData.Update?`](/documentation/USDKit/USDPlayer/DeformationData/Update/skinning)

Changed skinning data.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

---

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