6.1

1 files changed, 5 insertions, 1 deletions

diff --git a/src/main.zig b/src/main.zig
index c55bc06..40ac9c7 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -2,7 +2,11 @@ const std = @import("std");
 const warn = @import("std").debug.print;
 
 pub fn unit_vector(v: vec) vec {
-    return v / scalar(3);
+    return v / scalar(length(v));
+}
+
+pub fn length(v: vec) f32 {
+    return @sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
 }
 
 pub fn ray_color(r: ray) vec {