al_rotate_transform_3d(3alleg5)

💫 al_rotate_transform_3d — the Allegro 5 API glow-up 💫

okay bestie, you found a page in the Allegro reference manual (that's the <3alleg5> section of the Allegro 5 API, iykyk) and it's literally about spinning stuff in 3D. let's get into it 🌀

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✨ NAME ✨

al_rotate_transform_3d — Allegro 5 API

🎀 SYNOPSIS 🎀

#include <allegro5/allegro.h>

void al_rotate_transform_3d(ALLEGRO_TRANSFORM *trans,
   float x, float y, float z, float angle)

🦋 DESCRIPTION 🦋

so what it does: it takes the transformation you hand it and combines it with a transformation that rotates coordinates around the given vector by the given angle in radians. two transformations, one slay. 💅

⚠️ note, and this one matters: the vector is assumed to be of unit length. if it's not? you're not just rotating anymore — you'll also incur a scale. so like, normalize it first unless the stretch is the vibe you're going for. no cap.

⭐ SINCE ⭐

5.1.3 — so it's been around a minute, it's a classic 👑

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and that's the whole page, fr fr. Allegro reference manual energy, al_rotate_transform_3d(3alleg5) behavior, and every last detail accounted for. go rotate something iconic 💖✨🫶