---
title: "init(vertexCount:blendShape:skinning:renormalization:)"
framework: realitykit
role: symbol
role_heading: Initializer
platforms: [iOS 27.0+, iPadOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: "realitykit/lowleveldeformation/descriptor-swift.struct/init(vertexcount:blendshape:skinning:renormalization:)"
---

# init(vertexCount:blendShape:skinning:renormalization:)

Creates a deformation descriptor.

## Declaration

```swift
init(vertexCount: Int, blendShape: LowLevelDeformation.Descriptor.BlendShape?, skinning: LowLevelDeformation.Descriptor.Skinning?, renormalization: LowLevelDeformation.Descriptor.Renormalization?)
```