quat_interpolate man page

quat_interpolate — Constructs a quaternion representing a rotation between from and to. Allegro game programming library.


#include <allegro.h>

void quat_interpolate(const QUAT *from, const QUAT *to, float t, QUAT *out);


Constructs a quaternion that represents a rotation between from and to.  The argument t can be anything between 0 and 1 and represents where  between from and to the result will be. 0 returns from, 1 returns to, and  0.5 will return a rotation exactly in between. The result is copied to  out. This function will create the short rotation (less than 180 degrees)  between from and to.

See Also


Referenced By


version 4.4.2 Allegro manual