# union(_:) Creates a bounding box containing the current bounds and the specified point. ``` func union(_ point: SIMD3) -> BoundingBox ``` ## Parameters `point` A point in space. ## Return Value The new bounding box. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)