4 files changed, 36 insertions, 9 deletions
diff --git a/src/world/container/list.rs b/src/world/container/list.rs
index c8e3fdd..22b6d88 100644
--- a/src/world/container/list.rs
+++ b/src/world/container/list.rs
@@ -1,9 +1,9 @@
-use crate::world::{Hittable, Intersection};
+use crate::world::{Object, Hittable, Intersection};
 use crate::core::{Bound3f, Ray};
 
 
 pub struct HittableList {
-    elems: Vec<Box<dyn Hittable>>,
+    elems: Vec<Object>,
 }
 
 impl HittableList {
@@ -11,7 +11,7 @@ impl HittableList {
         Self::default()
     }
 
-    pub fn add(&mut self, h: Box<dyn Hittable>) {
+    pub fn add(&mut self, h: Object) {
         self.elems.push(h);
     }
 }
diff --git a/src/world/mod.rs b/src/world/mod.rs
index 3a09522..cba6ddc 100644
--- a/src/world/mod.rs
+++ b/src/world/mod.rs
@@ -6,21 +6,22 @@ pub mod container;
 mod hittable;
 pub use scene::*;
 pub use hittable::{Intersection, Hittable};
+pub use shapes::Shape;
 
 use std::sync::Arc;
 use crate::material::Material;
 use crate::core::{Bound3f, Ray};
 
 pub struct Object {
-    pub shape: Box<dyn Hittable + Sync>,
-    pub mat: Arc<dyn Material + Sync + Send>,
+    pub shape: Shape,
+    pub mat: Arc<dyn Material>,
 }
 
 impl Object {
-    pub fn new(mat: Arc<dyn Material + Sync + Send>, shape: Box<dyn Hittable + Sync>) -> Self {
+    pub fn new<T: Into<Shape>>(mat: Arc<dyn Material>, shape: T) -> Self {
         Object {
             mat,
-            shape,
+            shape: shape.into(),
         }
     }
 }
@@ -29,7 +30,7 @@ impl Hittable for Object {
     fn intersect(&self, ray: &Ray) -> Option<Intersection> {
         if let Some(mut inter) = self.shape.intersect(ray) {
             inter.add_material_if_none(self.mat.as_ref());
-           Some(inter)
+            Some(inter)
         } else {
             None
         }
diff --git a/src/world/scene.rs b/src/world/scene.rs
index 6d15fc1..87bec1f 100644
--- a/src/world/scene.rs
+++ b/src/world/scene.rs
@@ -14,7 +14,7 @@ impl Scene {
     }
 
     pub fn add_object(&mut self, obj: Object) {
-        self.content.add(Box::new(obj));
+        self.content.add(obj);
     }
 
     pub fn add_objects(&mut self, objs: Vec<Object>) {
diff --git a/src/world/shapes/mod.rs b/src/world/shapes/mod.rs
index d7583ad..a11df5d 100644
--- a/src/world/shapes/mod.rs
+++ b/src/world/shapes/mod.rs
@@ -2,3 +2,29 @@ mod sphere;
 
 pub use sphere::Sphere;
 
+use crate::world::{Hittable, Intersection};
+use crate::core::{Bound3f, Ray};
+
+pub enum Shape {
+    Sphere(Sphere),
+}
+
+impl Hittable for Shape {
+    fn intersect(&self, ray: &Ray) -> Option<Intersection> {
+        match self {
+            Self::Sphere(sph) => sph.intersect(ray)
+        }
+    }
+
+    fn bounding_box(&self) -> Bound3f {
+        match self {
+            Self::Sphere(sph) => sph.bounding_box()
+        }
+    }
+}
+
+impl From<Sphere> for Shape {
+    fn from(s: Sphere) -> Self {
+        Self::Sphere(s)
+    }
+}