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get_align_matrix(3)             Allegro manual             get_align_matrix(3)

NAME
       get_align_matrix - Rotates a matrix to align it along specified
       coordinate vectors. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void get_align_matrix(MATRIX *m, fixed xfront, yfront, zfront, fixed
       xup, fixed yup, fixed zup);

DESCRIPTION
       Rotates a matrix so that it is aligned along the specified coordinate
       vectors (they need not be normalized or perpendicular, but the up and
       front must not be equal). A front vector of 0,0,-1 and up vector of
       0,1,0 will return the identity matrix.

SEE ALSO
       apply_matrix(3), get_camera_matrix(3)

Allegro                          version 4.4.2             get_align_matrix(3)