<!--
{
  "availability" : [
    "iOS: 27.0.0 -",
    "iPadOS: 27.0.0 -",
    "tvOS: 27.0.0 -",
    "visionOS: 27.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "RealityKit",
  "identifier" : "/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor",
  "metadataVersion" : "0.1.0",
  "role" : "Structure",
  "symbol" : {
    "kind" : "Structure",
    "modules" : [
      "RealityKit"
    ],
    "preciseIdentifier" : "s:22RealityCoreDeformation08LowLevelC0C8PipelineC10DescriptorV"
  },
  "title" : "LowLevelDeformation.Pipeline.Descriptor"
}
-->

# LowLevelDeformation.Pipeline.Descriptor

An object that describes the vertex layouts and deformer stages for a pipeline.

```
struct Descriptor
```

## Topics

### Creating a descriptor

### Specifying vertex attributes

[`var inputAttributes: [LowLevelDeformation.VertexAttribute]`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/inputAttributes)

The vertex attributes for the input mesh.

[`var outputAttributes: [LowLevelDeformation.VertexAttribute]`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/outputAttributes)

The vertex attributes for the output mesh.

### Configuring blending

### Configuring skinning

[`var skinning: LowLevelDeformation.Pipeline.Descriptor.Skinning?`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/skinning-swift.property)

Skinning parameters, or `nil` to omit skinning.

[`struct Skinning`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/Skinning-swift.struct)

The skinning stage configuration for a deformation pipeline.

### Configuring renormalizing

### Structures

[`struct BlendShape`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/BlendShape-swift.struct)

The blend-shape configuration for a deformation pipeline.

[`struct Renormalization`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/Renormalization-swift.struct)

An object that describes which vertex attributes to renormalize to unit length after deformation.

### Initializers

[`init(inputAttributes: [LowLevelDeformation.VertexAttribute], outputAttributes: [LowLevelDeformation.VertexAttribute], blendShape: LowLevelDeformation.Pipeline.Descriptor.BlendShape?, skinning: LowLevelDeformation.Pipeline.Descriptor.Skinning?, renormalization: LowLevelDeformation.Pipeline.Descriptor.Renormalization?)`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/init(inputAttributes:outputAttributes:blendShape:skinning:renormalization:))

Creates a pipeline descriptor.

### Instance Properties

[`var blendShape: LowLevelDeformation.Pipeline.Descriptor.BlendShape?`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/blendShape-swift.property)

Blend-shape parameters, or `nil` to omit blend-shape deformation.

[`var renormalization: LowLevelDeformation.Pipeline.Descriptor.Renormalization?`](/documentation/RealityKit/LowLevelDeformation/Pipeline/Descriptor/renormalization-swift.property)

Renormalization parameters, or `nil` to omit renormalization.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

---

Copyright &copy; 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)