# shz_mat4x4_set_rotation_quat

Source: https://sh4zam.com/api/matrix/shz_mat4x4_set_rotation_quat/

```c
SHZ_INLINE void shz_mat4x4_set_rotation_quat(shz_mat4x4_t* m, shz_quat_t q) SHZ_NOEXCEPT;
```

Sets just the rotational component of the matrix to the orientation given by a quaternion, keeping the other elements in-tact.

## Parameters

| Name | Type | Description |
| --- | --- | --- |
| `m` | `shz_mat4x4_t *` |  |
| `q` | `shz_quat_t` |  |

## Returns

Nothing (`void`).

## Naming and requirements

- `shz_mat4x4_t` and `shz_mat2x2_t` arguments must be 8-byte aligned. Unaligned data goes through the `float[16]` parameters of the `_unaligned` routines.

## Availability

- **C++ equivalent:** [`shz::mat4x4::set_rotation`](https://sh4zam.com/api/cpp/mat4x4/#set_rotation)
- **Type-generic form:** none
- **Back-ends:** SH4: shared C implementation · SW: portable C · SPU: shared C implementation
- **Defined in:** [`sh4zam/shz_matrix.h:367`](https://github.com/gyrovorbis/sh4zam/blob/ba1e30c88d49df0311870b229e1dd860ef26c477/include/sh4zam/shz_matrix.h#L367)
- **Module:** [Matrix](https://sh4zam.com/api/matrix/), section "Setting"