---
title: "simd_smoothstep(_:_:_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/simd_smoothstep(_:_:_:)-2q68m"
---

# simd_smoothstep(_:_:_:)

Returns an element-wise smoothly interpolated value between two vectors.

## Declaration

```swift
func simd_smoothstep(_ edge0: simd_float16, _ edge1: simd_float16, _ x: simd_float16) -> simd_float16
```

## See Also

### Interpolation Functions

- [simd_mix(_:_:_:)](simd/simd_mix(_:_:_:)-1hgrq.md)