---
title: intersectionFunctionBufferSize
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtlintersectionfunctionbufferarguments/intersectionfunctionbuffersize
---

# intersectionFunctionBufferSize

## Declaration

```swift
var intersectionFunctionBufferSize: UInt64
```

## Discussion

Discussion The maximum range in bytes of intersectionFunctionBuffer that can be used for ray tracing.