From 35722b57b1aa63aa3361a9095965adb1d0c0d6b8 Mon Sep 17 00:00:00 2001
From: Bill Thiede <git@xinu.tv>
Date: Sat, 8 Sep 2018 23:13:11 -0700
Subject: [PATCH] Closer to correct shading, but still not there.

---
 rtiow/src/bin/tracer_norm_shade.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rtiow/src/bin/tracer_norm_shade.rs b/rtiow/src/bin/tracer_norm_shade.rs
index 7f65e77..88a6484 100644
--- a/rtiow/src/bin/tracer_norm_shade.rs
+++ b/rtiow/src/bin/tracer_norm_shade.rs
@@ -13,7 +13,7 @@ fn hit_sphere(center: Vec3, radius: f32, r: Ray) -> f32 {
     if discriminant < 0. {
         return -1.;
     }
-    -b - discriminant.sqrt() / (2. * a)
+    (-b - discriminant.sqrt()) / (2. * a)
 }
 
 fn color(r: Ray) -> Vec3 {