man get_x_rotate_matrix () - Construct X axis rotation matrices. Allegro game programming library.
NAME
get_x_rotate_matrix, get_x_rotate_matrix_f - Construct X axis rotation matrices. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
void get_x_rotate_matrix(MATRIX *m, fixed r);
void get_x_rotate_matrix_f(MATRIX_f *m, float r);
DESCRIPTION
Construct X axis rotation matrices, storing them in m. When applied to a point, these matrices will rotate it about the X axis by the specified angle (given in binary, 256 degrees to a circle format).