php man page for polytype_grgb

POLYTYPE_GRGB(3alleg4)						  Allegro manual					    POLYTYPE_GRGB(3alleg4)

NAME
       POLYTYPE_GRGB - Polygon rendering mode type Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       #define POLYTYPE_GRGB

DESCRIPTION
       A  gouraud shaded polygon which interpolates RGB triplets rather than a single color. In 256-color modes this uses the global rgb_map table
       to convert the result to an 8-bit paletted color, so it must only be used after you have set up the RGB mapping table! The colors for  each
       vertex  are  taken  from  the  `c' value, which is interpreted as a 24-bit RGB triplet (0xFF0000 is red, 0x00FF00 is green, and 0x0000FF is
       blue).

SEE ALSO
       polygon3d(3alleg4), rgb_map(3alleg4), ex3d(3alleg4)

Allegro 							   version 4.4.2					    POLYTYPE_GRGB(3alleg4)