---
title: materialUpdates
framework: usdkit
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: usdkit/usdplayer/frameupdate/materialupdates
---

# materialUpdates

IDs of materials with delta changes this frame.

## Declaration

```swift
let materialUpdates: [USDPlayer.MaterialID]
```