---
title: imageblockSampleLength
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtl4renderpassdescriptor/imageblocksamplelength
---

# imageblockSampleLength

Assigns the per-sample size, in bytes, of the largest explicit imageblock layout in the render pass.

## Declaration

```swift
var imageblockSampleLength: Int { get set }
```