Provided by: allegro4-doc_4.4.3.1-2_all 
      
    
NAME
       set_luminance_blender - Enables a luminance blender mode. Allegro game programming library.
SYNOPSIS
       #include <allegro.h>
       void set_luminance_blender(int r, int g, int b, int a);
DESCRIPTION
       Enables a luminance blender mode for combining translucent or lit truecolor pixels. Applies the luminance
       of the source to the destination.  The colour of the destination is not affected.
SEE ALSO
       set_trans_blender(3alleg4), drawing_mode(3alleg4)
Allegro                                           version 4.4.3                   set_luminance_blender(3alleg4)