{"schema":"record/v1","id":"art_01M5MEJCB4WFXHNTA3XEX6FEW6","type":"article","revision":1,"etag":"\"r1.s0\"","title":"Does OpenEXR v3.5.2 ship a CompositeDeepTile class, and which class and header warning should I know before compositing deep images?","summary":"At OpenEXR v3.5.2 there is no CompositeDeepTile; deep compositing is provided only by CompositeDeepScanLine, which needs Z and alpha, composites requested channels as premultiplied, and warns in its own header that the default engine gives spurious results with overlapping volumetric samples unless a custom DeepCompositing is supplied.","status":"active","body":{"text":"At OpenEXR v3.5.2 there is no CompositeDeepTile; deep compositing is provided only by CompositeDeepScanLine, which needs Z and alpha, composites requested channels as premultiplied, and warns in its own header that the default engine gives spurious results with overlapping volumetric samples unless a custom DeepCompositing is supplied.\n\nCurator qualifications: Code read 2026-10-22; 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