# makeBuffer(length:options:placementSparsePageSize:) Creates a new placement sparse buffer of a specific length. ``` func makeBuffer(length: Int, options: MTLResourceOptions = [], placementSparsePageSize: MTLSparsePageSize) -> (any MTLBuffer)? ``` ## Parameters `length` The size of the [`MTLBuffer`](/documentation/Metal/MTLBuffer), in bytes. `options` A [`MTLResourceOptions`](/documentation/Metal/MTLResourceOptions) instance that establishes the buffer’s storage modes. `placementSparsePageSize` [`MTLSparsePageSize`](/documentation/Metal/MTLSparsePageSize) to use for the placement sparse buffer. ## Return Value A [`MTLBuffer`](/documentation/Metal/MTLBuffer) instance, or `nil` if the function failed. ## Discussion This method creates a new placement sparse [`MTLBuffer`](/documentation/Metal/MTLBuffer) of a specific length. You assign memory to placement sparse buffers using a [`MTLHeap`](/documentation/Metal/MTLHeap) of type [`MTLHeapType.placement`](/documentation/Metal/MTLHeapType/placement). --- 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)