ft: 3: vec3 class

src/main.rs

@@ -1,7 +1,13 @@
+#![feature(core_float_math)]
+
+mod vec3;
+
+use crate::vec3::Vec3;
 use log::info;
 use pretty_env_logger;
 
 fn main() {
+    let v = Vec3::rgb(255., 0., 255.);
     pretty_env_logger::init();
 
     let image_width = 256;
@@ -12,16 +18,14 @@ fn main() {
     for j in 0..image_height {
         info!("{}\tScanlines remaining.", (image_height - j));
         for i in 0..image_width {
-            let r = i as f32 / (image_width - 1) as f32;
-            let g = j as f32 / (image_height - 1) as f32;
-            let b = 0.0;
-
-            let ir = (255.599 * r) as u8;
-            let ig = (255.599 * g) as u8;
-            let ib = (255.599 * b) as u8;
+            let rgb = Vec3::rgb(
+                i as f32 / (image_width - 1) as f32,
+                j as f32 / (image_height - 1) as f32,
+                0.0,
+            );
 
             let pixel = imgbuf.get_pixel_mut(i, j);
-            *pixel = image::Rgb([ir, ig, ib]);
+            *pixel = rgb.output();
         }
     }