diff --git a/CodeWalker.Core/GameFiles/Resources/Bounds.cs b/CodeWalker.Core/GameFiles/Resources/Bounds.cs
index 9b157d2..719d3f6 100644
--- a/CodeWalker.Core/GameFiles/Resources/Bounds.cs
+++ b/CodeWalker.Core/GameFiles/Resources/Bounds.cs
@@ -2726,9 +2726,11 @@ namespace CodeWalker.GameFiles
                 var child = Children.data_items[i];
                 if (child != null)
                 {
+                    var cbox = new BoundingBox(child.BoxMin, child.BoxMax);
+                    var tcbox = cbox.Transform(child.Position, child.Orientation, child.Scale);
                     var it = new BVHBuilderItem();
-                    it.Min = child.BoxMin;
-                    it.Max = child.BoxMax;
+                    it.Min = tcbox.Minimum;
+                    it.Max = tcbox.Maximum;
                     it.Index = i;
                     it.Bounds = child;
                     items.Add(it);
diff --git a/CodeWalker.Core/Utils/Vectors.cs b/CodeWalker.Core/Utils/Vectors.cs
index 0ce5b3e..0327f6b 100644
--- a/CodeWalker.Core/Utils/Vectors.cs
+++ b/CodeWalker.Core/Utils/Vectors.cs
@@ -121,6 +121,26 @@ namespace CodeWalker
 
 
 
+    public static class BoundingBoxMath
+    {
+
+        public static BoundingBox Transform(this BoundingBox b, Vector3 position, Quaternion orientation, Vector3 scale)
+        {
+            var mat = Matrix.Transformation(Vector3.Zero, Quaternion.Identity, scale, Vector3.Zero, orientation, position);
+            var matabs = mat;
+            matabs.Column1 = mat.Column1.Abs();
+            matabs.Column2 = mat.Column2.Abs();
+            matabs.Column3 = mat.Column3.Abs();
+            matabs.Column4 = mat.Column4.Abs();
+            var bbcenter = (b.Maximum + b.Minimum) * 0.5f;
+            var bbextent = (b.Maximum - b.Minimum) * 0.5f;
+            var ncenter = Vector3.TransformCoordinate(bbcenter, mat);
+            var nextent = Vector3.TransformNormal(bbextent, matabs).Abs();
+            return new BoundingBox(ncenter - nextent, ncenter + nextent);
+        }
+
+    }
+
 
 
     public struct BoundingCapsule