nalgebra_glm/gtx/
normal.rs

1use crate::RealNumber;
2
3use crate::aliases::TVec3;
4
5/// The normal vector of the given triangle.
6///
7/// The normal is computed as the normalized vector `cross(p2 - p1, p3 - p1)`.
8pub fn triangle_normal<T: RealNumber>(p1: &TVec3<T>, p2: &TVec3<T>, p3: &TVec3<T>) -> TVec3<T> {
9    (p2 - p1).cross(&(p3 - p1)).normalize()
10}