---
name: "quat_to_matrix"
section: "3alleg4"
platform: "linux"
package: "allegro4-doc"
version: "2:4.4.3.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/quat_to_matrix/3alleg4"
---

# quat\_to\_matrix(3alleg4)

Constructs a rotation matrix from a quaternion. Allegro game programming library.

## NAME

quat\_to\_matrix - Constructs a rotation matrix from a quaternion. Allegro game programming library.

## SYNOPSIS

**#include \<allegro.h\>**

**void quat\_to\_matrix(const QUAT \*q, MATRIX\_f \*m);**

## DESCRIPTION

Constructs a rotation matrix from a quaternion.

## SEE ALSO

**exquat**(3alleg4)