<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "macOS: -",
    "tvOS: -",
    "visionOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "MetalPerformanceShaders",
  "identifier" : "/documentation/MetalPerformanceShaders/MPSIntersectionDistancePrimitiveIndex",
  "metadataVersion" : "0.1.0",
  "role" : "Structure",
  "symbol" : {
    "kind" : "Structure",
    "modules" : [
      "Metal Performance Shaders"
    ],
    "preciseIdentifier" : "c:@SA@MPSIntersectionDistancePrimitiveIndex"
  },
  "title" : "MPSIntersectionDistancePrimitiveIndex"
}
-->

# MPSIntersectionDistancePrimitiveIndex

An intersection result that contains the distance from the ray origin to the intersection point, and the index of the intersected primitive.

```
struct MPSIntersectionDistancePrimitiveIndex
```

## Relationships

### Conforms To

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

[`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)