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Apple Developer Docs

Spatial Preview / USDPreviewSession / USDPreviewSession.Event / USDPreviewSession.Event.playbackStateChanged(isPlaying:)

USDPreviewSession.Event.playbackStateChanged(isPlaying:)

The USD’s animation playback state has changed

Declaration

case playbackStateChanged(isPlaying: Bool)

Open on developer.apple.com

Spatial PreviewCase

macOS 27.0+

Built on 2026-06-12 · Snapshot snapshot-20260612-beta.1 (macOS 27.0) · Commit fba13e1 · by @g-cqd · based on Apple Developer Documentation