---
title: USDPlayer.MeshData.Update
framework: usdkit
role: symbol
role_heading: Structure
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: usdkit/usdplayer/meshdata/update
---

# USDPlayer.MeshData.Update

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

## Declaration

```swift
struct Update
```

## Topics

### Instance Properties

- [assignedMaterials](usdkit/usdplayer/meshdata/update/assignedmaterials.md)
- [id](usdkit/usdplayer/meshdata/update/id.md)
- [indexData](usdkit/usdplayer/meshdata/update/indexdata.md)
- [instanceTransforms](usdkit/usdplayer/meshdata/update/instancetransforms.md)
- [meshType](usdkit/usdplayer/meshdata/update/meshtype.md)
- [parts](usdkit/usdplayer/meshdata/update/parts.md)
- [vertexData](usdkit/usdplayer/meshdata/update/vertexdata.md)

## Relationships

### Conforms To

- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)