diff --git a/pathtracer/src/render/bidirectional/bidirectional_pathtracer.rs b/pathtracer/src/render/bidirectional/bidirectional_pathtracer.rs
index 880b97c..f2bff2a 100644
--- a/pathtracer/src/render/bidirectional/bidirectional_pathtracer.rs
+++ b/pathtracer/src/render/bidirectional/bidirectional_pathtracer.rs
@@ -29,7 +29,8 @@ impl BidirectionalPathtracer {
         todo!()
     }
 
-    fn construct_path(&self, point: Point, direction: Unit<Vector>) -> Path {
+    #[allow(unused)]
+    fn construct_path(&self, point: Point, _direction: Unit<Vector>) -> Path {
         let mut res = Path::new(point);
         for _ in 0..self.scene.reflection_limit {
             // FIXME:
diff --git a/pathtracer/src/render/bidirectional/path.rs b/pathtracer/src/render/bidirectional/path.rs
index 28da0d4..0bca927 100644
--- a/pathtracer/src/render/bidirectional/path.rs
+++ b/pathtracer/src/render/bidirectional/path.rs
@@ -10,6 +10,7 @@ pub struct PathPoint {
 }
 
 impl PathPoint {
+    #[allow(unused)]
     pub fn new(
         point: Point,
         incident: Unit<Vector>,
@@ -31,6 +32,7 @@ pub struct Path {
 }
 
 impl Path {
+    #[allow(unused)]
     pub fn new(origin: Point) -> Self {
         Path {
             origin,
@@ -38,6 +40,7 @@ impl Path {
         }
     }
 
+    #[allow(unused)]
     pub fn push_point(&mut self, new_point: PathPoint) {
         self.points.push(new_point)
     }
diff --git a/pathtracer/src/render/pathtrace/pathtracer.rs b/pathtracer/src/render/pathtrace/pathtracer.rs
index bba0c76..a73c2db 100644
--- a/pathtracer/src/render/pathtrace/pathtracer.rs
+++ b/pathtracer/src/render/pathtrace/pathtracer.rs
@@ -2,7 +2,7 @@ use super::super::Renderer;
 use crate::scene::Scene;
 use image::RgbImage;
 
-/// Render the [`Scene`] using Bidirectional-Pathtracing
+/// Render the [`Scene`] using Pathtracing
 ///
 /// [`Scene`]: ../scene/scene/struct.Scene.html
 pub struct Pathtracer {
@@ -19,7 +19,7 @@ impl Pathtracer {
         Pathtracer { scene }
     }
 
-    /// Render the [`Scene`] using Bidirectional-Pathtracing.
+    /// Render the [`Scene`] using Pathtracing.
     ///
     /// [`Scene`]: ../scene/scene/struct.Scene.html
     pub fn render(&self) -> RgbImage {