Struct HitRecord

pub struct HitRecord {
    pub p: Point3,
    pub normal: Vec3,
    pub t: f64,
    pub front_face: bool,
    pub mat: Option<Arc<dyn Material>>,
}

Stores the result of a ray–object intersection.

Fields

p: Point3

Intersection point.

normal: Vec3

Surface normal at the intersection (always points against the incident ray).

t: f64

Ray parameter at the intersection.

front_face: bool

true if the ray hit the front (outside) face.

mat: Option<Arc<dyn Material>>

Material at the hit point (None means no scattering).

Implementations

impl HitRecord

pub fn set_face_normal(&mut self, r: &Ray, outward_normal: Vec3)

Sets front_face and normal so the normal always points against the incident ray.