Some color tests

src/main.rs

@@ -50,7 +50,7 @@ fn main() {
 
     // Image
     let aspect_ratio = 16.0 / 9.0;
-    let image_width = 1920;
+    let image_width = 1000;
     let image_height = (image_width as f64 / aspect_ratio) as u32;
     let samples_per_pixel = 100_u32;
     let max_depth = 50;
@@ -58,7 +58,7 @@ fn main() {
     // World
     let mut world = HittableList::new();
 
-    let material_ground = Arc::new(Lambertian::new(&Color::new(0.8, 0.8, 0.0)));
+    let material_ground = Arc::new(Lambertian::new(&Color::new(0.2, 0.3, 0.0)));
     let material_center = Arc::new(Lambertian::new(&Color::new(0.7, 0.1, 0.2)));
     //let material_center = Arc::new(Dielectric::new(1.5));
     let material_blue = Arc::new(Lambertian::new(&Color::new(0.2, 0.1, 0.7)));
@@ -66,6 +66,7 @@ fn main() {
     let material_metal_fuzz = Arc::new(Metal::new(&Color::new(0.8, 0.8, 0.8), 1.0));
     let material_mirror = Arc::new(Metal::new(&Color::new(0.8, 0.8, 0.8), 0.0));
     let material_dielectric = Arc::new(Dielectric::new(1.5));
+    let material_light = Arc::new(Lambertian::new(&Color::new(2.0, 1.0, 0.0)));
 
 
 
@@ -99,6 +100,11 @@ fn main() {
         1.0,
         material_blue.clone(),
     )));
+    world.add(Box::<Sphere>::new(Sphere::new(
+        Point3::new(0.5, 1.0, 0.3),
+        0.3,
+        material_light.clone(),
+    )));
     /*
     for i in -15..15 {
         for j in -15..15 {