diff --git a/rtiow/src/output.rs b/rtiow/src/output.rs
index d4f9a61..012c73e 100644
--- a/rtiow/src/output.rs
+++ b/rtiow/src/output.rs
@@ -9,6 +9,7 @@ use image;
 use lazy_static::lazy_static;
 use log::info;
 
+use crate::renderer::Scene;
 use crate::vec3::Vec3;
 
 // Main RGB image output from rendering the scene.
@@ -35,8 +36,9 @@ struct ImageMetadata {
 }
 #[derive(Serialize)]
 #[serde(rename_all = "camelCase")]
-struct Data {
+struct Data<'s> {
     timestamp: i64,
+    scene: &'s Scene,
     image_metadata: Vec<ImageMetadata>,
 }
 
@@ -113,7 +115,7 @@ trait ImageSaver {
         Q: AsRef<Path> + Sized;
 }
 
-pub fn write_images<P: AsRef<Path>>(output_dir: P) -> std::io::Result<()> {
+pub fn write_images<P: AsRef<Path>>(scene: &Scene, output_dir: P) -> std::io::Result<()> {
     let output_dir: &Path = output_dir.as_ref();
     let debugger = DEBUGGER.lock().unwrap();
     let now = Local::now();
@@ -202,6 +204,7 @@ pub fn write_images<P: AsRef<Path>>(output_dir: P) -> std::io::Result<()> {
         f,
         &Data {
             timestamp: now.timestamp(),
+            scene,
             image_metadata,
         },
     )?;
diff --git a/rtiow/src/renderer.rs b/rtiow/src/renderer.rs
index 45ccb93..21e3151 100644
--- a/rtiow/src/renderer.rs
+++ b/rtiow/src/renderer.rs
@@ -32,31 +32,33 @@ use crate::vec3::Vec3;
 
 #[derive(Debug)]
 pub enum Model {
+    BVH,
     Bench,
     Book,
-    Tutorial,
-    BVH,
-    Test,
     CornellBox,
     CornellSmoke,
-    PerlinDebug,
     Final,
     Mandelbrot,
+    PerlinDebug,
+    Spheramid,
+    Test,
+    Tutorial,
 }
 
 impl Model {
     pub fn scene(&self, opt: &Opt) -> Scene {
         match self {
-            Model::Book => scenes::book::new(&opt),
-            Model::Bench => scenes::bench::new(&opt),
-            Model::Tutorial => scenes::tutorial::new(&opt),
             Model::BVH => scenes::bvh::new(&opt),
-            Model::Test => scenes::test::new(&opt),
+            Model::Bench => scenes::bench::new(&opt),
+            Model::Book => scenes::book::new(&opt),
             Model::CornellBox => scenes::cornell_box::new(&opt),
             Model::CornellSmoke => scenes::cornell_smoke::new(&opt),
-            Model::PerlinDebug => scenes::perlin_debug::new(&opt),
             Model::Final => scenes::final_scene::new(&opt),
             Model::Mandelbrot => scenes::mandelbrot::new(&opt),
+            Model::PerlinDebug => scenes::perlin_debug::new(&opt),
+            Model::Spheramid => scenes::spheramid::new(&opt),
+            Model::Test => scenes::test::new(&opt),
+            Model::Tutorial => scenes::tutorial::new(&opt),
         }
     }
 }
@@ -76,14 +78,15 @@ impl str::FromStr for Model {
         match s {
             "bench" => Ok(Model::Bench),
             "book" => Ok(Model::Book),
-            "tutorial" => Ok(Model::Tutorial),
             "bvh" => Ok(Model::BVH),
-            "test" => Ok(Model::Test),
             "cornell_box" => Ok(Model::CornellBox),
             "cornell_smoke" => Ok(Model::CornellSmoke),
-            "perlin_debug" => Ok(Model::PerlinDebug),
             "final" => Ok(Model::Final),
             "mandelbrot" => Ok(Model::Mandelbrot),
+            "perlin_debug" => Ok(Model::PerlinDebug),
+            "spheramid" => Ok(Model::Spheramid),
+            "test" => Ok(Model::Test),
+            "tutorial" => Ok(Model::Tutorial),
             _ => Err(ModelParseError(s.to_owned())),
         }
     }
@@ -92,16 +95,17 @@ impl str::FromStr for Model {
 impl std::string::ToString for Model {
     fn to_string(&self) -> String {
         match self {
+            Model::BVH => "bvh".to_string(),
             Model::Bench => "bench".to_string(),
             Model::Book => "book".to_string(),
-            Model::Tutorial => "tutorial".to_string(),
-            Model::BVH => "bvh".to_string(),
-            Model::Test => "test".to_string(),
             Model::CornellBox => "cornell_box".to_string(),
             Model::CornellSmoke => "cornell_smoke".to_string(),
-            Model::PerlinDebug => "perlin_debug".to_string(),
             Model::Final => "final".to_string(),
             Model::Mandelbrot => "mandelbrot".to_string(),
+            Model::PerlinDebug => "perlin_debug".to_string(),
+            Model::Spheramid => "spheramid".to_string(),
+            Model::Test => "test".to_string(),
+            Model::Tutorial => "tutorial".to_string(),
         }
     }
 }
@@ -151,8 +155,13 @@ pub fn opt_hash(opt: &Opt) -> String {
     )
 }
 
+// TODO(wathiede): implement the skips and then the renderer could use json as an input file type.
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
 pub struct Scene {
+    #[serde(skip)]
     pub world: Box<dyn Hit>,
+    #[serde(skip)]
     pub camera: Camera,
     pub subsamples: usize,
     /// overrides subsamples setting.
@@ -161,6 +170,7 @@ pub struct Scene {
     pub width: usize,
     pub height: usize,
     pub global_illumination: bool,
+    #[serde(skip)]
     pub env_map: Option<EnvMap>,
 }
 
@@ -631,5 +641,5 @@ pub fn render(scene: Scene, output_dir: &Path) -> std::result::Result<(), std::i
         progress(&Default::default(), &current_stat, time_diff, pixel_total)
     );
 
-    output::write_images(output_dir)
+    output::write_images(&scene, output_dir)
 }
diff --git a/rtiow/src/scenes/mod.rs b/rtiow/src/scenes/mod.rs
index 13fea3b..deab28d 100644
--- a/rtiow/src/scenes/mod.rs
+++ b/rtiow/src/scenes/mod.rs
@@ -6,5 +6,6 @@ pub mod cornell_smoke;
 pub mod final_scene;
 pub mod mandelbrot;
 pub mod perlin_debug;
+pub mod spheramid;
 pub mod test;
 pub mod tutorial;
diff --git a/rtiow/src/scenes/spheramid.rs b/rtiow/src/scenes/spheramid.rs
new file mode 100644
index 0000000..3c145b1
--- /dev/null
+++ b/rtiow/src/scenes/spheramid.rs
@@ -0,0 +1,88 @@
+use crate::camera::Camera;
+use crate::hitable::Hit;
+use crate::hitable_list::HitableList;
+use crate::kdtree::KDTree;
+use crate::material::Dielectric;
+use crate::material::Lambertian;
+use crate::material::Metal;
+use crate::moving_sphere::MovingSphere;
+use crate::renderer::Opt;
+use crate::renderer::Scene;
+use crate::sphere::Sphere;
+use crate::texture::CheckerTexture;
+use crate::texture::ConstantTexture;
+use crate::texture::Texture;
+use crate::vec3::Vec3;
+
+pub fn new(opt: &Opt) -> Scene {
+    let lookfrom = Vec3::new(3., 4., 2.);
+    let lookat = Vec3::new(0., 0., -1.);
+    let dist_to_focus = (lookfrom - lookat).length();
+    let aperture = 0.1;
+    let time_min = 0.;
+    let time_max = 0.;
+    let camera = Camera::new(
+        lookfrom,
+        lookat,
+        Vec3::new(0., 1., 0.),
+        45.,
+        opt.width as f32 / opt.height as f32,
+        aperture,
+        dist_to_focus,
+        time_min,
+        time_max,
+    );
+    let ground_color: Box<dyn Texture> = if opt.use_accel {
+        Box::new(CheckerTexture::new(
+            ConstantTexture::new([0., 0., 0.]),
+            ConstantTexture::new([1.0, 0.4, 0.4]),
+        ))
+    } else {
+        Box::new(ConstantTexture::new(Vec3::new(0.4, 1.0, 0.4)))
+    };
+
+    let objects: Vec<Box<dyn Hit>> = vec![
+        //let world: Box<Hit> = Box::new(HitableList::new(vec![
+        Box::new(Sphere::new([1., 0.5, 1.], 0.5, Dielectric::new(1.5))),
+        Box::new(Sphere::new(
+            Vec3::new(0., 0., -1.),
+            0.5,
+            Lambertian::new(ConstantTexture::new(Vec3::new(0.1, 0.2, 0.5))),
+        )),
+        Box::new(Sphere::new(
+            Vec3::new(0., -1000.5, -1.),
+            1000.,
+            Lambertian::new(ground_color),
+        )),
+        Box::new(Sphere::new(
+            Vec3::new(1., 0., -1.),
+            0.5,
+            Metal::new(Vec3::new(0.8, 0.6, 0.2), 0.2),
+        )),
+        Box::new(MovingSphere::new(
+            Vec3::new(-1., 0., -1.25),
+            Vec3::new(-1., 0., -0.75),
+            0.5,
+            0.,
+            1.,
+            Lambertian::new(ConstantTexture::new(Vec3::new(0.2, 0.8, 0.2))),
+        )),
+    ];
+    let world: Box<dyn Hit> = if opt.use_accel {
+        Box::new(KDTree::new(objects, time_min, time_max))
+    } else {
+        Box::new(HitableList::new(objects))
+    };
+    Scene {
+        camera,
+        world,
+        subsamples: opt.subsamples,
+        adaptive_subsampling: None,
+        // adaptive_subsampling: Some(0.5),
+        num_threads: opt.num_threads,
+        width: opt.width,
+        height: opt.height,
+        global_illumination: true,
+        ..Default::default()
+    }
+}
diff --git a/rtiow/src/scenes/tutorial.rs b/rtiow/src/scenes/tutorial.rs
index 2c172e6..3c145b1 100644
--- a/rtiow/src/scenes/tutorial.rs
+++ b/rtiow/src/scenes/tutorial.rs
@@ -15,7 +15,7 @@ use crate::texture::Texture;
 use crate::vec3::Vec3;
 
 pub fn new(opt: &Opt) -> Scene {
-    let lookfrom = Vec3::new(3., 2., 2.);
+    let lookfrom = Vec3::new(3., 4., 2.);
     let lookat = Vec3::new(0., 0., -1.);
     let dist_to_focus = (lookfrom - lookat).length();
     let aperture = 0.1;