From 6f88f9fe6d8c1d2a7f15e6a325571518dccf147d Mon Sep 17 00:00:00 2001
From: Michael Zhang <mail@mzhang.io>
Date: Wed, 15 Feb 2023 01:39:20 -0600
Subject: [PATCH] Fix light direction

---
 assignment-1b/src/scene/illumination.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/assignment-1b/src/scene/illumination.rs b/assignment-1b/src/scene/illumination.rs
index 8f1786c..250a5eb 100644
--- a/assignment-1b/src/scene/illumination.rs
+++ b/assignment-1b/src/scene/illumination.rs
@@ -61,7 +61,7 @@ impl Scene {
           LightKind::Point { location } => {
             location - intersection_context.point
           }
-          LightKind::Directional { direction } => direction,
+          LightKind::Directional { direction } => -direction,
         }
         .normalize();