implement beer's law for colourful dielectrics

1 files changed, 3 insertions, 3 deletions

diff --git a/src/main.rs b/src/main.rs
index c99ca58..0fe2df9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -14,7 +14,7 @@ use camera::Camera;
 use hittable::Hittable;
 use display::{Display, Image, Pixelflut};
 use ray::Ray;
-use vec3::{Vec3, Color};
+use vec3::{Vec3, Color, Point3};
 use scenes::get_scene;
 
 struct PixelUpdate {
@@ -33,7 +33,7 @@ fn ray_color(ray: &Ray, background: &Color, world: &dyn Hittable, depth: u32) ->
     }
     match world.hit(ray, 0.001, f64::INFINITY) {
         None => background.clone(),
-        Some(rec) => {
+        Some(mut rec) => {
             let mut scattered = Ray::new();
             let mut attenuation = Color::new();
             if let Some(material) = &rec.material {
@@ -70,7 +70,7 @@ fn main() {
     //const ASPECT_RATIO: f64 = 1.0;
     const IMAGE_WIDTH: u32 = 600;
     const IMAGE_HEIGHT: u32 = (IMAGE_WIDTH as f64 / ASPECT_RATIO) as u32;
-    const SAMPLES_PER_PIXEL: u32 = 500;
+    const SAMPLES_PER_PIXEL: u32 = 30;
     const MAX_DEPTH: u32 = 50;
     const THREAD_COUNT: u32 = 8;
     const TIME_START: f64 = 0.0;