---
title: triangleData
framework: metal
role: symbol
role_heading: Type Property
path: metal/mtlintersectionfunctionsignature/triangledata
---

# triangleData

A flag indicating that function signature uses triangle data.

## Declaration

```swift
static var triangleData: MTLIntersectionFunctionSignature { get }
```

## Discussion

Discussion The corresponding MSL function needs to contain the triangle_data tag in its declaration.

## See Also

### Specifying the intersection function signature

- [instancing](metal/mtlintersectionfunctionsignature/instancing.md)
- [worldSpaceData](metal/mtlintersectionfunctionsignature/worldspacedata.md)