upd: anti aliasing

1 files changed, 7 insertions, 3 deletions

diff --git a/src/global.rs b/src/global.rs
index fc9e0c9..3f74ba1 100644
--- a/src/global.rs
+++ b/src/global.rs
@@ -1,4 +1,5 @@
 use crate::calculus::calculus::Point3;
+use crate::interval::Interval;
 
 // "Ideal" aspect ratio, allowing fraction
 pub const ASPECT_RATIO: f32 = 16.0f32 / 9.0f32;
@@ -9,6 +10,8 @@ pub const VIEWPORT_HEIGHT: f32 = 2.0;
 pub const FOCAL_LENGTH: f32 = 1.0;
 pub const CAMERA_CENTER: Point3 = Point3 { x: 0f32, y: 0f32, z: 0f32 };
 
+pub const SAMPLES_PER_PIXEL: usize = 100;
+
 pub const fn get_image_height(image_width: usize, aspect_ratio: f32) -> usize {
     let image_height = (image_width as f32 / aspect_ratio) as usize;
     if image_width < 1 { 1 } else { image_height }
@@ -52,10 +55,11 @@ pub struct Pixel {
 
 impl Pixel {
     pub fn from_frac(r: f32, g: f32, b: f32) -> Self {
+        let intensity = Interval::new(0.0, 0.999);
         Self {
-            r: (255.999 * r) as u8,
-            g: (255.999 * g) as u8,
-            b: (255.999 * b) as u8,
+            r: (256.0 * intensity.clamp(r)) as u8,
+            g: (256.0 * intensity.clamp(g)) as u8,
+            b: (256.0 * intensity.clamp(b)) as u8,
         }
     }