quat_mul(3) Allegro manual quat_mul(3)NAMEquat_mul - Multiplies two quaternions. Allegro game programming
library.
SYNOPSIS
#include <allegro.h>
void quat_mul(const QUAT *p, const QUAT *q, QUAT *out);
DESCRIPTION
Multiplies two quaternions, storing the result in out. The resulting
quaternion will have the same effect as the combination of p and q, ie.
when applied to a point, (point * out) = ((point * p) * q). Any number
of rotations can be concatenated in this way. Note that quaternion mul‐
tiplication is not commutative, ie. quat_mul(p, q) != quat_mul(q, p).
Allegro version 4.4.2 quat_mul(3)