identity_matrix(3alleg4)

📦 version 4.4.3.1, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

✨ identity_matrix — the manual page, but make it cute ✨

okay bestie, this is identity_matrix(3alleg4) — a page from the Allegro manual, and honestly? it's short, it's sweet, it's giving "little function, big main character energy." 💅

🌸 NAME 🌸

identity_matrix, identity_matrix_f — a global variable holding the identity matrix, aka the "do nothing" matrix. It lives in the Allegro game programming library. 🎀

🦋 SYNOPSIS 🦋

#include <allegro.h>

extern MATRIX identity_matrix;

extern MATRIX_f identity_matrix_f;

💖 DESCRIPTION 💖

so basically, these are global variables and they contain the identity matrix — the 'do nothing' matrix, no cap. 🫶

and the vibe? multiplying by the identity matrix has no effect. literally none. it's the math equivalent of texting back "lol ok" and changing absolutely nothing about the situation. 🦋✨

like, it's the neutral one. the one that shows up, does its job, and lets everything stay exactly the way it was. iconic behavior, honestly. 👑

💀 bestie note: it's a global, so it's just there, chillin' in your program, ready whenever you need a matrix that changes nothing. periodt.

that's the whole page!! short and slay. this one's from the Allegro manual, version 4.4.3 — mwah, ty for reading, go multiply something by the identity matrix and watch it do absolutely nothing 💜✨🎀

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