quat_slerp(3alleg4)

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

✨ NAME ✨

okay bestie, welcome to quat_slerp(3alleg4) from the Allegro manual — it's giving Allegro game programming library energy, and this page is literally about quat_slerp.

quat_slerp — a version of quat_interpolate() that lets you control the rotation. Part of the Allegro game programming library.

🦋 SYNOPSIS 🦋

#include <allegro.h>

void quat_slerp(const QUAT *from, const QUAT *to, float t, QUAT *out,
       int how);

💅 DESCRIPTION 💅

It's the same as quat_interpolate(), but with extra control over how the rotation is done. The how parameter can be any one of these values:

  • QUAT_SHORT — like quat_interpolate(), use shortest path.
  • QUAT_LONG — rotation will be greater than 180 degrees.
  • QUAT_CW — rotate clockwise when viewed from above.
  • QUAT_CCW — rotate counterclockwise when viewed from above.
  • QUAT_USER — the quaternions are interpolated exactly as given.

mwah 💋 that's the whole page, bestie — Allegro manual, version 4.4.3, page quat_slerp(3alleg4). That's the footer energy, periodt. 💖✨

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