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pub mod instance;
mod bvh_node;
pub use bvh_node::BVHNode;
mod constant_medium;
pub use constant_medium::ConstantMedium;
mod hittable_box;
pub use hittable_box::HittableBox;
mod hittable_list;
pub use hittable_list::HittableList;
mod xy_rect;
pub use xy_rect::XYRect;
mod xz_rect;
pub use xz_rect::XZRect;
mod yz_rect;
pub use yz_rect::YZRect;
mod sphere;
pub use sphere::Sphere;
mod triangle;
pub use triangle::Triangle;
mod model;
pub use model::Model;
mod aabb;
use std::sync::Arc;
use crate::ray::Ray;
use crate::vec3::{Point3, Vec3};
use crate::material::Material;
use aabb::AABB;
#[derive(Clone)]
pub struct HitRecord {
pub p: Point3,
pub normal: Vec3,
pub material: Option<Arc<dyn Material>>,
pub t: f64,
pub u: f64,
pub v: f64,
pub front_face: bool,
}
impl HitRecord {
pub fn new() -> HitRecord {
HitRecord {
p: Point3 {
x: 0.0,
y: 0.0,
z: 0.0,
},
normal: Vec3 {
x: 0.0,
y: 0.0,
z: 0.0,
},
material: None,
t: 0.0,
u: 0.0,
v: 0.0,
front_face: false,
}
}
pub fn set_face_normal(&mut self, ray: &Ray, outward_normal: &Vec3) {
self.front_face = ray.direction.dot(&outward_normal) < 0.0;
self.normal = if self.front_face {
outward_normal.clone()
} else {
-outward_normal
};
}
}
pub trait Hittable: Send + Sync {
fn hit(&self, ray: &Ray, t_min: f64, t_max: f64) -> Option<HitRecord>;
fn bounding_box(&self, time_start: f64, time_end: f64) -> Option<AABB>;
}
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