glUniform3f(glGetUniformLocation(shader, "key"),
(float)y_key / 0xff, (float)u_key / 0xff, (float)v_key / 0xff);
if(config.use_value)
glUniform3f(glGetUniformLocation(shader, "key"),
(float)y_key / 0xff, (float)u_key / 0xff, (float)v_key / 0xff);
if(config.use_value)