---
title: "*=(_:_:)"
framework: spatial
role: symbol
role_heading: Operator
path: "spatial/affinetransform3dfloat/*=(_:_:)"
---

# *=(_:_:)

Calculates the concatenation of two affine transforms and stores the result in the left-hand-side variable.

## Declaration

```swift
static func *= (lhs: inout AffineTransform3DFloat, rhs: AffineTransform3DFloat)
```

## Parameters

- `lhs`: The first value.
- `rhs`: The second value.