# box(size:targetEdgeLength:) Creates a box mesh with a topology suitable for cloth simulation. ``` @MainActor static func box(size: SIMD3, targetEdgeLength: Float = defaultTargetEdgeLength) throws -> Self ``` ## Return Value The generated box mesh resource. ## Discussion - size: The dimensions (width, height, depth) of the generated box, in meters. The resulting box will extend from `-dimensions/2` to `+dimensions/2`. - targetEdgeLength: The targeted average edge length for the generated mesh, in meters. The generated mesh will contain edges with a length as close as possible to this. --- 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)