cross_product(3)

✨ NAME ✨

cross_product, cross_product_f — bestie, we're calculating the cross product 💅 and this whole thing lives in the Allegro game programming library 🎀

🌸 SYNOPSIS 🌸

#include <allegro.h>

void cross_product(fixed x1, y1, z1, x2, y2, z2, *xout, *yout, *zout);

void cross_product_f(float x1, y1, z1, x2, y2, z2, *xout, *yout, *zout);

🦋 DESCRIPTION 🦋

okay so picture this: you got two vectors and you wanna know what's perpendicular to both of them?? that's literally the whole vibe here ✨

cross_product calculates the cross product (x1, y1, z1) x (x2, y2, z2), and it stores the result in (*xout, *yout, *zout). no cap, that's it.

and the way that the cross product is perpendicular to both of the input vectors?? that's the whole reason it can be used to generate polygon normals 👑 so yeah, iconic behaviour fr fr 💖

🌈 SEE ALSO 🌈

• dot_product(3)
• polygon_z_normal(3)
• normalize_vector(3)
• exstars(3)

and that's the whole page bestie 🫶 this lil masterpiece is brought to you by Allegro, version 4.4.3, and it's giving cross_product(3) energy all day every day 💅✨ mwah, slay, periodt 🎀