Remove vestigal option and extraneous use statements.

rtiow/src/bin/tracer.rs

@@ -32,7 +32,7 @@ fn main() -> Result<(), std::io::Error> {
             .start(pprof_path.to_str().unwrap().as_bytes())
             .unwrap();
     }
-    let res = render(scene, &opt.output, opt.store_intermediate);
+    let res = render(scene, &opt.output);
     if let Some(pprof_path) = opt.pprof {
         info!("Saving pprof to {}", pprof_path.to_string_lossy());
         PROFILER.lock().unwrap().stop().unwrap();

rtiow/src/renderer.rs

@@ -20,7 +20,6 @@ use hitable::Hit;
 use ray::Ray;
 use scenes;
 use texture::EnvMap;
-use texture::Texture;
 use vec3::Vec3;
 
 #[derive(Debug)]
@@ -101,9 +100,6 @@ pub struct Opt {
     /// Use acceleration data structure, may be BVH or kd-tree depending on scene.
     #[structopt(long = "use_accel")]
     pub use_accel: bool,
-    /// Store intermediate images when -s > 1
-    #[structopt(long = "store_intermediate")]
-    pub store_intermediate: bool,
 
     /// Output directory
     #[structopt(parse(from_os_str), default_value = "/tmp/tracer")]
@@ -213,11 +209,7 @@ fn render_worker(
     trace!(target: "renderer", "Shutting down worker {}", tid);
 }
 
-pub fn render(
-    scene: Scene,
-    output_dir: &Path,
-    store_intermediate: bool,
-) -> std::result::Result<(), std::io::Error> {
+pub fn render(scene: Scene, output_dir: &Path) -> std::result::Result<(), std::io::Error> {
     let (pixel_req_tx, pixel_req_rx) = channel::unbounded();
     let (pixel_resp_tx, pixel_resp_rx) = channel::unbounded();
 

rtiow/src/scenes/book.rs

@@ -28,7 +28,7 @@ pub fn new(opt: &Opt) -> Scene {
         lookfrom,
         lookat,
         Vec3::new(0., 1., 0.),
-        20.,
+        50.,
         opt.width as f32 / opt.height as f32,
         aperture,
         dist_to_focus,

rtiow/src/scenes/perlin_debug.rs

@@ -7,7 +7,6 @@ use hitable::Hit;
 use hitable_list::HitableList;
 use kdtree::KDTree;
 use material::Lambertian;
-use noise::lode::Lode;
 use noise::perlin::Perlin;
 use noise::NoiseType;
 use renderer::Opt;