Contents

withMutableElements(_:)

Provides mutable access to the per-vertex data within a callback.

Declaration

mutating func withMutableElements<Result>(_ callback: @_lifetime(0: copy 0) (inout MutableSpan<ElementType>) -> Result) -> Result

Parameters

callback:
A closure that receives a mutable span over the per-vertex data.

Return Value

The value returned by callback.

Discussion

The provided span is only valid for the lifetime of the callback.

See Also

Accessing vertex data