resolved local state conflict

src/raytracer.rs

@@ -26,7 +26,7 @@ pub fn write_image(filename: &str, pixels: &[u8], width: u32, height: u32) {
 pub fn render(scene: &mut Scene) {
     scene.init();
 
-    // TODO: currently splits per vertical line, but could be more granular (per chunk)
+    // TODO (low priority): currently splits per vertical line, but could be more granular (per chunk)
     let mut pixels = vec![0_u8; (scene.get_image_width() * scene.get_image_height() * 3) as usize];
     let scanlines: Vec<(usize, &mut [u8])> = pixels
         .chunks_mut(scene.get_image_width() as usize * 3)