From 89a5c9a8a0cdf627cda0e31da454f83ca21315ce Mon Sep 17 00:00:00 2001
From: lamp
Date: Sun, 21 Jan 2024 16:40:16 +0000
Subject: implement beer's law for colourful dielectrics

---
 src/scenes.rs | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'src/scenes.rs')

diff --git a/src/scenes.rs b/src/scenes.rs
index 7cdce86..54f6eb3 100644
--- a/src/scenes.rs
+++ b/src/scenes.rs
@@ -3,7 +3,7 @@ use std::sync::Arc;
 use crate::hittable::{ConstantMedium, Hittable};
 use crate::hittable::HittableBox;
 use crate::hittable::HittableList;
-use crate::material::{Dielectric, DiffuseLight, Lambertian, Material, Metal};
+use crate::material::{Dielectric, DielectricAttenuation, DiffuseLight, Lambertian, Material, Metal};
 use crate::hittable::instance::RotateY;
 use crate::hittable::instance::RotateX;
 use crate::hittable::instance::RotateZ;
@@ -59,14 +59,14 @@ fn random_scene() -> (Arc<dyn Hittable>, Point3, Point3, f64, f64, Color) {
                     sphere_material = Arc::new(Metal { albedo, fuzz });
                     world.add(Arc::new(Sphere { center, radius: 0.2, material: sphere_material }));
                 } else {
-                    sphere_material = Arc::new(Dielectric { index_of_refraction: 1.5 });
+                    sphere_material = Arc::new(Dielectric { index_of_refraction: 1.5, attenuation: Some(DielectricAttenuation { albedo: Color { x: 0.5, y: 0.5, z: 0.8 }, constant: 0.8 } ) });
                     world.add(Arc::new(Sphere { center, radius: 0.2, material: sphere_material }));
                 }
             }
         }
     }
 
-    let material1 = Arc::new(Dielectric { index_of_refraction: 1.5 });
+    let material1 = Arc::new(Dielectric { index_of_refraction: 1.5, attenuation: Some(DielectricAttenuation { albedo: Color { x: 0.5, y: 0.5, z: 0.8 }, constant: 0.8 } ) });
     world.add(Arc::new(Sphere { center: Point3 { x: 0.0, y: 1.0, z: 0.0 }, radius: 1.0, material: material1 }));
 
     let material2 = Arc::new(Lambertian { albedo: Arc::new(SolidColor::from_color(Color { x: 0.4, y: 0.2, z: 0.1 })) });
@@ -199,13 +199,13 @@ fn final_scene() -> (Arc<dyn Hittable>, Point3, Point3, f64, f64, Color) {
     let moving_sphere_material = Arc::new(Lambertian::from_color(Color { x: 0.7, y: 0.3, z: 0.1 }));
     objects.add(Arc::new(Moving { hittable: Arc::new(Sphere { center: Point3::new(), radius: 50.0, material: moving_sphere_material }), offset_start: center_1, offset_end: center_2, time_start: 0.0, time_end: 1.0, }));
 
-    objects.add(Arc::new(Sphere { center: Point3 { x: 260.0, y: 150.0, z: 45.0 }, radius: 50.0, material: Arc::new(Dielectric { index_of_refraction: 1.5 }) }));
+    objects.add(Arc::new(Sphere { center: Point3 { x: 260.0, y: 150.0, z: 45.0 }, radius: 50.0, material: Arc::new(Dielectric { index_of_refraction: 1.5, attenuation: None }) }));
     objects.add(Arc::new(Sphere { center: Point3 { x: 0.0, y: 150.0, z: 145.0 }, radius: 50.0, material: Arc::new(Metal { albedo: Color { x: 0.8, y: 0.8, z: 0.9 }, fuzz: 1.0 }) }));
 
-    let boundary = Arc::new(Sphere { center: Point3 { x: 360.0, y: 150.0, z: 145.0 }, radius: 70.0, material: Arc::new(Dielectric { index_of_refraction: 1.5 }) });
+    let boundary = Arc::new(Sphere { center: Point3 { x: 360.0, y: 150.0, z: 145.0 }, radius: 70.0, material: Arc::new(Dielectric { index_of_refraction: 1.5, attenuation: None }) });
     objects.add(boundary.clone());
     objects.add(Arc::new(ConstantMedium::new(boundary.clone(), 0.2, Arc::new(SolidColor::from_color(Color { x: 0.2, y: 0.4, z: 0.9 })))));
-    let boundary = Arc::new(Sphere { center: Point3 { x: 0.0, y: 0.0, z: 0.0 }, radius: 5000.0, material: Arc::new(Dielectric { index_of_refraction: 1.5 }) });
+    let boundary = Arc::new(Sphere { center: Point3 { x: 0.0, y: 0.0, z: 0.0 }, radius: 5000.0, material: Arc::new(Dielectric { index_of_refraction: 1.5, attenuation: None }) });
     objects.add(Arc::new(ConstantMedium::new(boundary.clone(), 0.0001, Arc::new(SolidColor::from_color(Color { x: 1.0, y: 1.0, z: 1.0 })))));
 
     let emat = Arc::new(Lambertian { albedo: Arc::new(ImageTexture::from_bmp_data(&include_bytes!("../res/earthmap.bmp").to_vec())) });
@@ -242,8 +242,8 @@ fn triangle_scene() -> (Arc<dyn Hittable>, Point3, Point3, f64, f64, Color) {
     //let pertext = Arc::new(Lambertian { albedo: Arc::new(NoiseTexture::new(4.0)) });
     //let pertext = Arc::new(Lambertian { albedo: Arc::new(SolidColor::from_color(Color {x: 0.0, y: 0.0, z: 0.0}) ) });
     //objects.add(Arc::new(Triangle { material: Arc::new(Metal { albedo: Color { x: 0.7, y: 0.6, z: 0.5 }, fuzz: 0.0 }), v0 : Vec3::new(), v1: Vec3 { x: 0.0, y: 0.0, z: 1.0 }, v2: Vec3 { x: 0.0, y: 1.0, z: 0.5 }  }));
-    //let monkey = Arc::new(Model::from_obj(include_str!("../res/monkey.obj"), Arc::new(Dielectric { index_of_refraction: 1.5 })));
-    let monkey = Arc::new(Model::from_obj(include_str!("../res/monkey.obj"), Arc::new(Metal { albedo: Color { x: 0.7, y: 0.6, z: 0.5 }, fuzz: 0.5 })));
+    let monkey = Arc::new(Model::from_obj(include_str!("../res/monkey.obj"), Arc::new(Dielectric { index_of_refraction: 1.5, attenuation: Some(DielectricAttenuation { albedo: Color { x: 0.5, y: 0.5, z: 0.8 }, constant: 0.8 } ) })));
+    // let monkey = Arc::new(Model::from_obj(include_str!("../res/monkey.obj"), Arc::new(Metal { albedo: Color { x: 0.7, y: 0.6, z: 0.5 }, fuzz: 0.5 })));
     let monkey = Arc::new(RotateX::new(monkey, 45.0));
     let monkey = Arc::new(RotateZ::new(monkey, 45.0));
     objects.add(monkey);
-- 
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