plan9 man page for polytype_atex

POLYTYPE_ATEX(3alleg4)						  Allegro manual					    POLYTYPE_ATEX(3alleg4)

NAME

       POLYTYPE_ATEX - Polygon rendering mode type Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       #define POLYTYPE_ATEX

DESCRIPTION

       An  affine  texture  mapped polygon. This stretches the texture across the polygon with a simple 2d linear interpolation, which is fast but
       not mathematically correct. It can look OK if the polygon is fairly small or flat-on to the camera, but because it doesn't deal	with  per-
       spective  foreshortening, it can produce strange warping artifacts. To see what this means, run Allegro's test program and see what happens
       to the polygon3d() test when you zoom in very close to the cube.

SEE ALSO

       polygon3d(3alleg4), ex3d(3alleg4)

Allegro 							   version 4.4.2					    POLYTYPE_ATEX(3alleg4)