diff --git a/Cargo.lock b/Cargo.lock
index 136f8b4..89132c3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,24 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "cfg-if"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fd1289c04a9ea8cb22300a459a72a385d7c73d3259e2ed7dcb2af674838cfa9"
+
+[[package]]
+name = "getrandom"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26145e563e54f2cadc477553f1ec5ee650b00862f0a58bcd12cbdc5f0ea2d2f4"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "r-efi",
+ "wasi",
+]
+
 [[package]]
 name = "justerror"
 version = "1.1.0"
@@ -13,6 +31,21 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "libc"
+version = "0.2.175"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
+
+[[package]]
+name = "ppv-lite86"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85eae3c4ed2f50dcfe72643da4befc30deadb458a9b590d720cde2f2b1e97da9"
+dependencies = [
+ "zerocopy",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.101"
@@ -31,6 +64,41 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "r-efi"
+version = "5.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
+
+[[package]]
+name = "rand"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6db2770f06117d490610c7488547d543617b21bfa07796d7a12f6f1bd53850d1"
+dependencies = [
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
+dependencies = [
+ "getrandom",
+]
+
 [[package]]
 name = "syn"
 version = "1.0.109"
@@ -78,6 +146,7 @@ name = "tinyrender"
 version = "0.1.0"
 dependencies = [
  "justerror",
+ "rand",
  "thiserror",
 ]
 
@@ -86,3 +155,38 @@ name = "unicode-ident"
 version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
+
+[[package]]
+name = "wasi"
+version = "0.14.3+wasi-0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a51ae83037bdd272a9e28ce236db8c07016dd0d50c27038b3f407533c030c95"
+dependencies = [
+ "wit-bindgen",
+]
+
+[[package]]
+name = "wit-bindgen"
+version = "0.45.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c573471f125075647d03df72e026074b7203790d41351cd6edc96f46bcccd36"
+
+[[package]]
+name = "zerocopy"
+version = "0.8.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1039dd0d3c310cf05de012d8a39ff557cb0d23087fd44cad61df08fc31907a2f"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ecf5b4cc5364572d7f4c329661bcc82724222973f2cab6f050a4e5c22f75181"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.106",
+]
diff --git a/Cargo.toml b/Cargo.toml
index cb8924f..e86659c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,4 +5,5 @@ edition = "2024"
 
 [dependencies]
 justerror = "1.1.0"
+rand = "0.9.2"
 thiserror = "2.0.16"
diff --git a/src/main.rs b/src/main.rs
index ee06e20..8382bda 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,6 +2,7 @@
 extern crate justerror;
 
 mod tga;
+use rand::Rng;
 use tga::*;
 
 mod point;
@@ -32,31 +33,34 @@ fn main() {
     let h = 64;
     let mut framebuffer = TGAImage::new(w, h, TGAFormat::RGB);
 
-    let ax = 7;
-    let ay = 3;
-    let bx = 12;
-    let by = 37;
-    let cx = 62;
-    let cy = 53;
-
-    framebuffer.set(ax, ay, WHITE);
-    framebuffer.set(bx, by, WHITE);
-    framebuffer.set(cx, cy, WHITE);
-
-    let a = Point::new(ax, ay);
-    let b = Point::new(bx, by);
-    let c = Point::new(cx, cy);
-
-    line(a, b, &mut framebuffer, BLUE);
-    line(c, b, &mut framebuffer, GREEN);
-    line(c, a, &mut framebuffer, YELLOW);
-    line(a, c, &mut framebuffer, RED);
+    bench(&mut framebuffer);
 
     framebuffer
         .write_file("framebuffer.tga", true, true)
         .unwrap();
 }
 
+fn bench(fb: &mut TGAImage) {
+    let mut rng = rand::rng();
+
+    for _ in 0..1 << 24 {
+        let ax = rng.random_range(0..fb.width);
+        let ay = rng.random_range(0..fb.height);
+        let a = Point::new(ax, ay);
+
+        let bx = rng.random_range(0..fb.width);
+        let by = rng.random_range(0..fb.height);
+        let b = Point::new(bx, by);
+
+        line(
+            a,
+            b,
+            fb,
+            [rng.random(), rng.random(), rng.random(), rng.random()].into(),
+        );
+    }
+}
+
 fn line(mut a: Point, mut b: Point, fb: &mut TGAImage, color: TGAColor) {
     let is_steep = (a.x - b.x).abs() < (a.y - b.y).abs();
     if is_steep {