---
title: "init(paddingStyle:)"
framework: metalperformanceshadersgraph
role: symbol
role_heading: Initializer
path: "metalperformanceshadersgraph/mpsgraphdepthwiseconvolution3dopdescriptor/init(paddingstyle:)"
---

# init(paddingStyle:)

Creates a 3D depthwise convolution descriptor with default values.

## Declaration

```swift
convenience init?(paddingStyle: MPSGraphPaddingStyle)
```

## Parameters

- `paddingStyle`: See paddingStyle property.

## Return Value

Return Value The descriptor on autoreleasepool.