From 29dc3b6a37b718bad917401f6aad33d8aabec790 Mon Sep 17 00:00:00 2001
From: Matthew Gordon <matthew.scott.gordon@gmail.com>
Date: Fri, 19 Jun 2020 00:00:12 -0400
Subject: [PATCH] Fix a typo that caused artifacts with ReflectiveMaterial

---
 src/materials/reflective_material.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/materials/reflective_material.rs b/src/materials/reflective_material.rs
index f093f1f..c38d103 100644
--- a/src/materials/reflective_material.rs
+++ b/src/materials/reflective_material.rs
@@ -19,8 +19,8 @@ impl<T: Real> Material<T> for ReflectiveMaterial<T> {
         let reflection_strength = self.reflection_strength;
         Box::new(
             move |w_o: Vector3<T>, w_i: Vector3<T>, colour_in: ColourRgbF<T>| {
-                if w_i.z < T::zero() || w_o.z < T::zero() {
-                    ColourRgbF::new(T::zero(), T::one(), T::one())
+                if w_i.z <= T::zero() || w_o.z <= T::zero() {
+                    ColourRgbF::new(T::zero(), T::zero(), T::zero())
                 } else {
                     let reflection_vector = Vector3::new(-w_o.x, -w_o.y, w_o.z);
                     let reflection_colour = colour_in * reflection_strength;