Codecleanup for #1482

Source/Engine/Core/Math/BoundingFrustum.cs

@@ -104,6 +104,16 @@ namespace FlaxEngine
             GetPlanesFromMatrix(ref pMatrix, out pNear, out pFar, out pLeft, out pRight, out pTop, out pBottom);
         }
 
+        /// <summary>
+        /// Creates a new instance of BoundingFrustum.
+        /// </summary>
+        /// <param name="matrix">Combined matrix that usually takes view × projection matrix.</param>
+        public BoundingFrustum(ref Matrix matrix)
+        {
+            pMatrix = matrix;
+            GetPlanesFromMatrix(ref pMatrix, out pNear, out pFar, out pLeft, out pRight, out pTop, out pBottom);
+        }
+
         /// <summary>
         /// Returns a hash code for this instance.
         /// </summary>