diff options
| -rw-r--r-- | src/main.zig | 6 |
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 { |