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| author | Tom Barrett <tom@tombarrett.xyz> | 2022-12-20 22:48:27 +0100 |
|---|---|---|
| committer | Tom Barrett <tom@tombarrett.xyz> | 2022-12-20 22:48:27 +0100 |
| commit | e25ffd24ee2e115d8453644d3670348c3678af67 (patch) | |
| tree | 31b6bffa147687592bc2f430dcbdab4f2dba3654 /src/main.zig | |
| parent | 60592281229a8c6ff4f440e2b16ed4ff7bb1af20 (diff) | |
6.1
Diffstat (limited to 'src/main.zig')
| -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 { |