ft (wip): deserialization

src/objects/traits.rs

@@ -1,8 +1,10 @@
+use std::fmt::Debug;
+
 use crate::objects::hit::Hit;
 use crate::Ray;
 use crate::Vec3;
 
-pub trait Hittable {
+pub trait Hittable: Debug {
     fn hit(&self, r: &Ray) -> Option<Hit>;
     fn normal_at(&self, p: &Vec3) -> Vec3;
     // fn intersect<H: Hittable>(&self, o: &H) -> bool;