DOKK / manpages / debian 10 / allegro4-doc / set_add_blender.3alleg4.en
set_add_blender(3alleg4) Allegro manual set_add_blender(3alleg4)

set_add_blender - Enables an additive blender mode. Allegro game programming library.

#include <allegro.h>

void set_add_blender(int r, int g, int b, int a);

Enables an additive blender mode for combining translucent or lit truecolor pixels.

set_trans_blender(3alleg4), drawing_mode(3alleg4)

version 4.4.2 Allegro