Provided by: allegro4-doc_4.4.2-10_all bug


       matrix_mul, matrix_mul_f - Multiplies two matrices. Allegro game programming library.


       #include <allegro.h>

       void matrix_mul(const MATRIX *m1, const MATRIX *m2, MATRIX *out);

       void matrix_mul_f(const MATRIX_f *m1, const MATRIX_f *m2, MATRIX_f *out);


       Multiplies  two matrices, storing the result in out (this may be a duplicate of one of the
       input matrices, but it is faster when the  inputs  and  output  are  all  different).  The
       resulting  matrix  will  have  the  same  effect as the combination of m1 and m2, ie. when
       applied to a point p, (p * out) = ((p * m1) * m2). Any number of  transformations  can  be
       concatenated  in  this  way.  Note  that  matrix  multiplication  is  not commutative, ie.
       matrix_mul(m1, m2) != matrix_mul(m2, m1).


       apply_matrix(3alleg4), exquat(3alleg4), exscn3d(3alleg4)