Cleaning up decimation.

include/IntegralVector3.h

@@ -80,6 +80,18 @@ namespace Ogre
 		return result;
 	}
 
+	template <typename Type>
+	IntegralVector3<Type> operator+(const IntegralVector3<Type>& lhs, const IntegralVector3<Type>& rhs)
+	{
+		IntegralVector3<Type> result;
+
+		result.x = lhs.x + rhs.x;
+		result.y = lhs.y + rhs.y;
+		result.z = lhs.z + rhs.z;
+
+		return result;
+	}
+
 	typedef IntegralVector3<char> CharVector3;
 	typedef IntegralVector3<short> ShortVector3;
 	typedef IntegralVector3<int> IntVector3;

include/PolyVoxSceneManager.h

@@ -92,6 +92,8 @@ namespace Ogre
 
 		void igniteVoxel(UIntVector3 voxelToIgnite);
 
+		Vector3 computeNormal(const Vector3& position, NormalGenerationMethod normalGenerationMethod) const;
+
 	private:
 		void markVoxelChanged(uint x, uint y, uint z);
 		void markRegionChanged(uint firstX, uint firstY, uint firstZ, uint lastX, uint lastY, uint lastZ);