Fix a copy mistake.

2020-02-17 19:09:31 +00:00
parent 4a9379c0b2
commit 73d60fb7e4
1 changed files with 1 additions and 1 deletions
--- 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);