From 07e75c663dcd3e8ae026ba73e3142b1188242870 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Wed, 20 Aug 2014 10:04:38 -0700
Subject: [PATCH] Convert normal from object to world space

Properly doing this is a bit more complicated because it has to be normalized and pointing in the right direction. Just applying the inverse of the transform matrix doesn't quite do it.
---
 src/object.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/object.cc b/src/object.cc
index e268033..edca8ed 100644
--- a/src/object.cc
+++ b/src/object.cc
@@ -88,7 +88,8 @@ Vector4
 Object::Normal(const Vector4& p)
     const
 {
-    return FromObjectSpace(DoNormal(ToObjectSpace(p)));
+    Vector4 norm = Transpose(mTranslation) * DoNormal(ToObjectSpace(p));
+    return norm;
 }