Anti aliasing by multisampling

src/main.rs

@@ -1,3 +1,5 @@
+#![feature(array_zip)]
+
 mod renderer;
 mod geometry;
 mod ray;
@@ -25,6 +27,9 @@ pub struct Args {
     /// image height
     #[arg(long)]
     height: usize,
+    /// rays per pixel
+    #[arg(long)]
+    multiplier: usize,
 }
 
 fn main() {