DOKK / manpages / debian 10 / allegro5-doc / al_set_shader_bool.3alleg5.en
al_set_shader_bool(3alleg5) al_set_shader_bool(3alleg5)

al_set_shader_bool - Allegro 5 API

#include <allegro5/allegro.h>
bool al_set_shader_bool(const char *name, bool b)
    

Sets a boolean uniform of the target bitmap's shader.

Returns true on success. Otherwise returns false, e.g. if the uniform by that name does not exist in the shader.

5.1.6

al_use_shader(3alleg5)

Allegro reference manual