---
title: intersectionFunctionTableOffset
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtlindirectaccelerationstructuremotioninstancedescriptor/intersectionfunctiontableoffset
---

# intersectionFunctionTableOffset

An offset for determining which function in the intersection function table Metal calls when testing a ray against the instance.

## Declaration

```swift
var intersectionFunctionTableOffset: UInt32
```