diff --git a/src/main.rs b/src/main.rs
index 4ea0d3b..6e3e220 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -49,15 +49,14 @@ fn main() {
 
     let mut scene = vec![Object {
         vertices: vec![
-            // Point3D(0.0, f64::MAX / 2.0, 1.0),
-            // Point3D(f64::MAX / 2.0, -f64::MAX / 2.0, 1.0),
-            // Point3D(-f64::MAX / 2.0, -f64::MAX / 2.0, 1.0),
-            // Point3D(0.0, 0.0, f64::MAX / 2.0),
-            // Point3D(0.0, 0.0, 0.0),
-            Point3D(f64::MAX / 2.0, f64::MAX / 2.0, 0.0)
+            Point3D(0.0, f64::MAX / 2.0, 0.0),
+            Point3D(f64::MAX / 2.0, -f64::MAX / 2.0, 0.0),
+            Point3D(-f64::MAX / 2.0, -f64::MAX / 2.0, 0.0),
         ],
         edges: vec![
-            (Point3D(0.0, 0.0, 0.0), Point3D(f64::MAX / 2.0, f64::MAX / 2.0, 0.0))
+            (Point3D(0.0, f64::MAX / 2.0, 0.0), Point3D(f64::MAX / 2.0, -f64::MAX / 2.0, 0.0)),
+            (Point3D(f64::MAX / 2.0, -f64::MAX / 2.0, 0.0), Point3D(-f64::MAX / 2.0, -f64::MAX / 2.0, 0.0)),
+            (Point3D(-f64::MAX / 2.0, -f64::MAX / 2.0, 0.0), Point3D(0.0, f64::MAX / 2.0, 0.0))
         ],
     }];
 
diff --git a/src/points.rs b/src/points.rs
index 295d1ad..68a1d83 100644
--- a/src/points.rs
+++ b/src/points.rs
@@ -1,6 +1,6 @@
 use crate::consts::*;
 
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 pub struct Point2D(pub f64, pub f64);
 impl Point2D {
     pub fn to_canvas_coordinates(&self) -> Point3D {
@@ -18,7 +18,7 @@ impl Point2D {
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 pub struct Point3D(pub f64, pub f64, pub f64);
 impl Point3D {
     pub fn to_screen_coordinates(&self) -> Point2D {
diff --git a/src/render.rs b/src/render.rs
index 7cacc9e..85006b1 100644
--- a/src/render.rs
+++ b/src/render.rs
@@ -13,7 +13,7 @@ fn to_rgb((red, green, blue): Subpixels) -> Pixel {
     pixel
 }
 
-const fn index_buffer(buf: &mut [u32], x: f64, y: f64) -> &mut u32 {
+fn index_buffer(buf: &mut [u32], x: f64, y: f64) -> &mut u32 {
     let x = x.round_ties_even(); // Banker's round
     let y = y.round_ties_even();
 
@@ -41,13 +41,11 @@ pub fn render(t: u128, scene: &Scene, buf: &mut [u32]) {
         }
 
         for edge in &obj.edges { // Draw lines
-            dbg!(&edge.0, &edge.1);
             let start = edge.0.to_screen_coordinates();
             let end = edge.1.to_screen_coordinates();
 
-            dbg!(&start, &end);
             if (end.0 - start.0).abs() == 0.0 { // Vertical line case - m is undefined
-                for y in (start.0.min(end.0) as u32)..(end.0.max(start.0) + 1.0) as u32 {
+                for y in (start.1.min(end.1) as u32)..(end.1.max(start.1) + 1.0) as u32 {
                     *index_buffer(buf, end.0, y as f64) = to_rgb((255, 255, 255));
                 }
                 continue
@@ -56,7 +54,8 @@ pub fn render(t: u128, scene: &Scene, buf: &mut [u32]) {
             let m = (end.1 - start.1) / (end.0 - start.0); // m = rise/run
             let c = start.1 as f64 - m * start.0 as f64; // c = y - mx
 
-            for x in (start.0 as usize)..(end.0 as usize) {
+            dbg!(start, end, "===");
+            for x in (start.0.min(end.0) as usize)..(end.0.max(start.0) as usize) {
                 let x = x as f64;
                 let y = m * x + c; // y = mx + c
                 *index_buffer(buf, x, y) = to_rgb((255, 255, 255));