diff --git a/library/PolyVoxCore/include/PolyVoxCore/Region.h b/library/PolyVoxCore/include/PolyVoxCore/Region.h
index 55c51ee4..655b3bce 100644
--- a/library/PolyVoxCore/include/PolyVoxCore/Region.h
+++ b/library/PolyVoxCore/include/PolyVoxCore/Region.h
@@ -149,6 +149,9 @@ namespace PolyVox
 		/// Tests whether the given position is contained in the 'z' range of this Region.
 		bool containsPointInZ(int32_t pos, uint8_t boundary = 0) const;
 
+		/// Tests whether the given Region is contained in this Region.
+		bool containsRegion(const Region& reg, uint8_t boundary = 0) const;
+
 		/// Enlarges the Region so that it contains the specified position.
 		void accumulate(int32_t iX, int32_t iY, int32_t iZ);
 		/// Enlarges the Region so that it contains the specified position.
diff --git a/library/PolyVoxCore/source/Region.cpp b/library/PolyVoxCore/source/Region.cpp
index 3db2edd6..444a1770 100644
--- a/library/PolyVoxCore/source/Region.cpp
+++ b/library/PolyVoxCore/source/Region.cpp
@@ -301,6 +301,23 @@ namespace PolyVox
 			&& (pos >= m_iLowerZ + boundary);
 	}
 
+	/**
+	 *  The boundary value can be used to ensure a region is only considered to be inside
+	 *  another Region if it is that far in in all directions. Also, the test is inclusive such 
+	 *  that a region is considered to be inside of itself.
+	 *  \param reg The region to test.
+	 *  \param boundary The desired boundary value.
+	 */
+	bool Region::containsRegion(const Region& reg, uint8_t boundary) const
+	{
+		return (reg.m_iUpperX <= m_iUpperX - boundary)
+			&& (reg.m_iUpperY <= m_iUpperY - boundary) 
+			&& (reg.m_iUpperZ <= m_iUpperZ - boundary)
+			&& (reg.m_iLowerX >= m_iLowerX + boundary)
+			&& (reg.m_iLowerY >= m_iLowerY + boundary)
+			&& (reg.m_iLowerZ >= m_iLowerZ + boundary);
+	}
+
 	/**
 	 * After calling this functions, the extents of this Region are given by the intersection
 	 * of this Region and the one it was cropped to.