# Matrix3x4.Concat

```csharp
static Matrix3x4 Concat(in Matrix3x4 a, in Matrix3x4 b)
```

`a` after `b` - native's `ConcatTransforms( a, b, out )`.

### Parameters

- `in a` (`Matrix3x4`)
- `in b` (`Matrix3x4`)

### Returns

`Matrix3x4`

Declared in [Matrix3x4](/api/Matrix3x4).
Assembly: `Sandbox.System`.