ft (wip): textures

src/objects/hit.rs

@@ -12,16 +12,20 @@ pub struct Hit {
     n: Vec3,
     mat: Arc<dyn Material>,
     front_face: bool,
+    u: f32,
+    v: f32,
 }
 
 impl Hit {
-    pub fn new(t: f32, p: Vec3, n: Vec3, mat: Arc<dyn Material>, front_face: bool) -> Self {
+    pub fn new(t: f32, p: Vec3, n: Vec3, mat: Arc<dyn Material>, front_face: bool, u: f32, v: f32) -> Self {
         Self {
             t,
             p,
             n: if front_face { n } else { -n },
             mat,
             front_face,
+            u,
+            v
         }
     }
 
@@ -45,6 +49,10 @@ impl Hit {
         self.front_face
     }
 
+    pub fn uv(&self) -> (f32, f32) {
+        (self.u, self.v)
+    }
+
     // TODO: use front_face to discard back-hits for culling
     pub fn hit_list(hittables: &Vec<Arc<dyn Hittable>>, r: &Ray) -> Option<Hit> {
         let mut closest: Option<Hit> = None;