al_use_shader(3)                                              al_use_shader(3)

NAME
       al_use_shader - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              bool al_use_shader(ALLEGRO_SHADER *shader)


DESCRIPTION
       Uses the shader for subsequent drawing operations on the current target
       bitmap.  Pass NULL to stop using any shader on the current target
       bitmap.

       Returns true on success.  Otherwise returns false, e.g. because the
       shader is incompatible with the target bitmap.

SINCE
       5.1.6

SEE ALSO
       al_destroy_shader(3), al_set_shader_sampler(3),
       al_set_shader_matrix(3), al_set_shader_int(3), al_set_shader_float(3),
       al_set_shader_bool(3), al_set_shader_int_vector(3),
       al_set_shader_float_vector(3), al_get_current_shader(3)

Allegro reference manual                                      al_use_shader(3)