matrix_to_quat(3) Allegro manual matrix_to_quat(3)NAMEmatrix_to_quat - Constructs a quaternion from a rotation matrix. Alle‐
gro game programming library.
SYNOPSIS
#include <allegro.h>
void matrix_to_quat(const MATRIX_f *m, QUAT *q);
DESCRIPTION
Constructs a quaternion from a rotation matrix. Translation is dis‐
carded during the conversion. Use get_align_matrix_f() if the matrix is
not orthonormalized, because strange things may happen otherwise.
Allegro version 4.4.2 matrix_to_quat(3)