POLYTYPE_PTEX(3alleg4) Allegro manual POLYTYPE_PTEX(3alleg4)
NAME
POLYTYPE_PTEX - Polygon rendering mode type Allegro game programming library.
SYNOPSIS
#include <allegro.h>
#define POLYTYPE_PTEX
DESCRIPTION
A perspective-correct texture mapped polygon. This uses the `z' value from the vertex structure as well as the u/v coordinates, so textures
are displayed correctly regardless of the angle they are viewed from. Because it involves division calculations in the inner texture map-
ping loop, this mode is a lot slower than POLYTYPE_ATEX, and it uses floating point so it will be very slow on anything less than a Pentium
(even with an FPU, a 486 can't overlap floating point division with other integer operations like the Pentium can).
SEE ALSO
polygon3d(3alleg4), POLYTYPE_ATEX(3alleg4), ex3d(3alleg4)
Allegro version 4.4.2 POLYTYPE_PTEX(3alleg4)
