From f2d4d5c2191275bd91f2f42b880f3edf3bccfd63 Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Fri, 9 Jun 2017 17:33:25 -0500
Subject: SwRasterizer: Corrected the light LUT lookups.

---
 src/common/quaternion.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/common')

diff --git a/src/common/quaternion.h b/src/common/quaternion.h
index 84ac82ed3..77f626bcb 100644
--- a/src/common/quaternion.h
+++ b/src/common/quaternion.h
@@ -30,6 +30,11 @@ public:
         return {xyz * other.w + other.xyz * w + Cross(xyz, other.xyz),
                 w * other.w - Dot(xyz, other.xyz)};
     }
+
+    Quaternion<T> Normalized() const {
+        T length = std::sqrt(xyz.Length2() + w * w);
+        return {xyz / length, w / length};
+    }
 };
 
 template <typename T>
-- 
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