---
title: MPSAccelerationStructureGroup
framework: metalperformanceshaders
role: symbol
role_heading: Class
path: metalperformanceshaders/mpsaccelerationstructuregroup
---

# MPSAccelerationStructureGroup

A group of acceleration structures.

## Declaration

```swift
class MPSAccelerationStructureGroup
```

## Topics

### Initializers

- [init(device:)](metalperformanceshaders/mpsaccelerationstructuregroup/init(device:).md)

### Instance Properties

- [device](metalperformanceshaders/mpsaccelerationstructuregroup/device.md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Ray Tracing

- [Accelerating ray tracing and motion blur using Metal](metal/accelerating-ray-tracing-and-motion-blur-using-metal.md)
- [MPSRayIntersector](metalperformanceshaders/mpsrayintersector.md)
- [MPSInstanceAccelerationStructure](metalperformanceshaders/mpsinstanceaccelerationstructure.md)
- [MPSTriangleAccelerationStructure](metalperformanceshaders/mpstriangleaccelerationstructure.md)
- [MPSAccelerationStructure](metalperformanceshaders/mpsaccelerationstructure.md)