POLYTYPE_ATEX_MASK, POLYTYPE_PTEX_MASK - Polygon rendering mode type
Allegro game programming library.
#include <allegro.h>
#define POLYTYPE_ATEX_MASK
#define POLYTYPE_PTEX_MASK
Like POLYTYPE_ATEX and POLYTYPE_PTEX, but zero texture map pixels are
skipped, allowing parts of the texture map to be transparent.
polygon3d(3alleg), POLYTYPE_ATEX(3alleg), POLYTYPE_PTEX(3alleg),
ex3d(3alleg)