# init(center:radius:) Creates a bounding sphere with the given center and radius. ``` init(center: SIMD3, radius: Float) ``` ## Parameters `center` The center of the bounding sphere in model space. `radius` The radius of the bounding sphere. --- 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)