# executeCommandsInBuffer:indirectBuffer:indirectBufferOffset: Encodes a command that runs an indirect range of commands from an indirect command buffer (ICB). ``` - (void) executeCommandsInBuffer:(id) indirectCommandbuffer indirectBuffer:(id) indirectRangeBuffer indirectBufferOffset:(NSUInteger) indirectBufferOffset; ``` ## Parameters `indirectCommandbuffer` An [`MTLIndirectCommandBuffer`](/documentation/Metal/MTLIndirectCommandBuffer) instance that contains other commands the current command runs. `indirectRangeBuffer` An [`MTLBuffer`](/documentation/Metal/MTLBuffer) instance with data that matches the layout of the [`MTLIndirectCommandBufferExecutionRange`](/documentation/Metal/MTLIndirectCommandBufferExecutionRange) structure. The [`length`](/documentation/Metal/MTLIndirectCommandBufferExecutionRange/length) property of that structure needs to be less than or equal to `0x4000` ( `16,384` ). `indirectBufferOffset` An integer that represents the location, in bytes, from the start of `indirectRangeBuffer` where the execution range structure begins. See the [Metal feature set tables (PDF)](https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf) to check for offset alignment requirements for buffers in `device` and `constant` address space. ## Discussion --- 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)