Struct Ray 

pub struct Ray<T, const N: usize> {
    pub origin: Vector<T, N>,
    pub direction: Vector<T, N>,
}

A ray with an origin and a direction. The direction is normalised.

Fields

origin: Vector<T, N>

direction: Vector<T, N>

Implementations

impl<T, const N: usize> Ray<T, N>

pub fn new(origin: Vector<T, N>, direction: Vector<T, N>) -> Self

where T: Mul<T, Output = T> + Clone + Sum + One + Float,

Constructs a ray from an origin and direction. The given direction is normalised by the callee.

pub unsafe fn new_unchecked( origin: Vector<T, N>, direction: Vector<T, N>, ) -> Self

Constructs a ray from an origin and direction.

Safety

The caller must ensure that the direction vector is normalised.

pub fn at(&self, t: T) -> Vector<T, N>

where T: Add<T, Output = T> + Mul<T, Output = T> + Clone,

Evaluates this ray at t.

In the case of non-negative t, ray.at(t) is the point that is t units away from the ray’s origin, in the ray’s direction.

In the case of negative t, ray.at(t) is the point that is -t units away from the ray’s origin, in the opposite direction to the ray’s direction.