al_set_shader_float_vector - Allegro 5 API

       Same as al_set_shader_int_vector(3alleg5) except all values are float instead of int.

       al_set_shader_float_vector - Allegro 5 API

al_set_shader_int_vector(3alleg5), al_use_shader(3alleg5)

Allegro reference manual                                                     al_set_shader_float_vector(3alleg5)

       5.1.0

              #include <allegro5/allegro.h>

              bool al_set_shader_float_vector(const char *name,
                 int num_components, const float *f, int num_elems)