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# USDPlayer.DeformationData.RenormalizationData.Update

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

```
struct Update
```

## Topics

### Instance Properties

[`let vertexAdjacencies: [UInt32]?`](/documentation/USDKit/USDPlayer/DeformationData/RenormalizationData/Update/vertexAdjacencies)

Changed vertex adjacency data.

[`let vertexAdjacencyEndIndices: [UInt32]?`](/documentation/USDKit/USDPlayer/DeformationData/RenormalizationData/Update/vertexAdjacencyEndIndices)

Changed vertex adjacency end indices.

[`let vertexIndicesPerTriangle: [UInt32]?`](/documentation/USDKit/USDPlayer/DeformationData/RenormalizationData/Update/vertexIndicesPerTriangle)

Changed vertex indices per triangle.

## Relationships

### Conforms To

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

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

---

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