More tries to fix Metal material

src/main.rs

@@ -39,7 +39,7 @@ fn ray_color(r: &Ray, world: &HittableList, depth: u32) -> Color {
         {
             return attenuation * ray_color(&scattered, world, depth - 1);
         }
-        return Color::null();
+        return Color::new(255.0, 0.0, 0.0);//Color::null();
     }
 
     let unit_direction = r.direction();
@@ -67,7 +67,7 @@ fn main() {
 
     // Image
     let aspect_ratio = 10.0 / 7.5; //16.0 / 9.0;
-    let image_width = 300;
+    let image_width = 1200;
     let image_height = (image_width as f64 / aspect_ratio) as u32;
     let samples_per_pixel = 1_u32;
     let max_depth = 50;
@@ -287,10 +287,10 @@ fn from_obj(path: &str) -> HittableList {
     //    118.0 / 255.0,
     //)));
     //let material = Arc::new(Dielectric::new(2.0));
-    let material = Arc::new(Metal::new(&Color::new(0.7, 0.6, 0.5), 0.0));
+    let material = Arc::new(Metal::new(&Color::new(0.5, 0.55, 0.7), 0.0));
     //let material = Arc::new(Rainbow::new());
 
-    let rotate_obj = 0; // rotate clockwise, 0: 0, 1: 90, 2: 180, 3: 270
+    let rotate_obj = 1; // rotate clockwise, 0: 0, 1: 90, 2: 180, 3: 270
 
     let cornell_box = tobj::load_obj(path, &tobj::OFFLINE_RENDERING_LOAD_OPTIONS);
     let (models, materials) = cornell_box.expect("Failed to load OBJ file");

src/material.rs

@@ -77,13 +77,13 @@ impl Material for Metal {
         *scattered = Ray::new(rec.p, reflected + self.fuzz * Vec3::random_in_unit_sphere());
         *attenuation = self.albedo.clone();
 
-        let reflect = Vec3::dot(scattered.direction(), rec.normal);
+        let reflect = Vec3::dot(r_in.direction(), rec.normal);
         //dbg!(reflect);
 
         /*if reflect > 0.0 {
             *attenuation = Color::new(100.0, 0.0, 0.0);
         }*/
-        return reflect > 0.0;
+        return true;//reflect > 0.0;
     }
 }