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# makeAccelerationStructureCommandEncoder()

Creates a ray-tracing acceleration structure command encoder that uses default settings.

```
func makeAccelerationStructureCommandEncoder() -> (any MTLAccelerationStructureCommandEncoder)?
```

## Discussion

Use an [`MTLAccelerationStructureCommandEncoder`](/documentation/Metal/MTLAccelerationStructureCommandEncoder) instance’s methods to set up a single ray-tracing pass.

---

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