POLYTYPE_PTEX(3)

📦 version 4.4.3.1, in fedora 43, fedora 44

✨ NAME ✨

omg bestie, welcome to the Allegro manual page for POLYTYPE_PTEX(3) 💖 it's the polygon rendering mode type for the Allegro game programming library. periodt.

🎀 SYNOPSIS 🎀

#include <allegro.h>

#define POLYTYPE_PTEX

🦋 DESCRIPTION 🦋

Okay so POLYTYPE_PTEX is a perspective-correct texture mapped polygon. It's giving main character energy because it uses the z value from the vertex structure and the u/v coordinates, so textures are displayed correctly regardless of the angle they are viewed from. slay. ✨

But bestie, listen: because it involves division calculations in the inner texture mapping loop, this mode is a lot slower than POLYTYPE_ATEX. 😭 It also uses floating point, so it will be very slow on anything less than a Pentium — and even with an FPU, a 486 can't overlap floating point division with other integer operations like the Pentium can. no cap, that's just the vibe. 💀

⚠️ lowkey important: the perspective-correctness is real, but so is the slowdown. POLYTYPE_PTEX is slower than POLYTYPE_ATEX, and that floating point + division combo is why. iykyk. 🫶

🌈 SEE ALSO 🌈

kisses bestie, that's the whole page 💅 this footer was brought to you by Allegro version 4.4.3 ✨ no date on this one, just the version, fr fr. 🎀

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