From 73d60fb7e4d8edd7e8ab0b14718121038edc2eb2 Mon Sep 17 00:00:00 2001
From: Godzil <godzil@godzil.net>
Date: Mon, 17 Feb 2020 19:09:31 +0000
Subject: [PATCH] Fix a copy mistake.

---
 tests/ch5_test.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/ch5_test.cpp b/tests/ch5_test.cpp
index 2d9c80f..dabb71f 100644
--- a/tests/ch5_test.cpp
+++ b/tests/ch5_test.cpp
@@ -29,7 +29,7 @@ int main()
         double worldY = (wallSize / 2) - pixelSize * y;
         for(x = 0; x < c.width; x++)
         {
-            double worldX = (wallSize / 2) - pixelSize * x;
+            double worldX = -(wallSize / 2) + pixelSize * x;
             Point position = Point(worldX, worldY, wallDistance);
             Ray r = Ray(cameraOrigin, (position - cameraOrigin).normalise());
             Intersect xs = s.intersect(r);