diff --git a/hub/exports/formats/cesiumjs_tileset.py b/hub/exports/formats/cesiumjs_tileset.py
index 6dd0ad24..99c04d3a 100644
--- a/hub/exports/formats/cesiumjs_tileset.py
+++ b/hub/exports/formats/cesiumjs_tileset.py
@@ -23,6 +23,14 @@ class CesiumjsTileset:
     except pyproj.exceptions.CRSError as err:
       raise pyproj.exceptions.CRSError from err
     self._to_gps = Transformer.from_crs(input_reference, pyproj.CRS('EPSG:4326'))
+    city_upper_corner = [
+      self._city.upper_corner[0] - self._city.lower_corner[0],
+      self._city.upper_corner[1] - self._city.lower_corner[1],
+      self._city.upper_corner[2] - self._city.lower_corner[2]
+    ]
+    city_lower_corner = [0, 0, 0]
+
+    print('root')
     self._tile_set = {
       'asset': {
         'version': '1.1',
@@ -75,7 +83,7 @@ class CesiumjsTileset:
       'geometricError': 240,
       'root': {
         'boundingVolume': {
-          'box': CesiumjsTileset._box_values(self._city.upper_corner, self._city.lower_corner)
+          'box': CesiumjsTileset._box_values(city_upper_corner, city_lower_corner)
         },
         'geometricError': 70,
         'refine': 'ADD',
@@ -87,10 +95,13 @@ class CesiumjsTileset:
 
   @staticmethod
   def _box_values(upper_corner, lower_corner):
+
     x = (upper_corner[0] - lower_corner[0]) / 2
+    x_center = ((upper_corner[0] - lower_corner[0]) / 2) + lower_corner[0]
     y = (upper_corner[1] - lower_corner[1]) / 2
+    y_center = ((upper_corner[1] - lower_corner[1]) / 2) + lower_corner[1]
     z = (upper_corner[2] - lower_corner[2]) / 2
-    return [x, y, z, x, 0, 0, 0, y, 0, 0, 0, z]
+    return [x_center, y_center, z, x, 0, 0, 0, y, 0, 0, 0, z]
 
   def _ground_coordinates(self, coordinates):
     ground_coordinates = []
@@ -104,10 +115,15 @@ class CesiumjsTileset:
     for building in self._city.buildings:
       upper_corner = [-math.inf, -math.inf, 0]
       lower_corner = [math.inf, math.inf, 0]
-
+      lower_corner_coordinates = lower_corner
       for surface in building.grounds:  # todo: maybe we should add the terrain?
         coordinates = self._ground_coordinates(surface.solid_polygon.coordinates)
         lower_corner = [min([c[0] for c in coordinates]), min([c[1] for c in coordinates]), 0]
+        lower_corner_coordinates = [
+          min([c[0] for c in surface.solid_polygon.coordinates]),
+          min([c[1] for c in surface.solid_polygon.coordinates]),
+          0
+        ]
         upper_corner = [max([c[0] for c in coordinates]), max([c[1] for c in coordinates]), building.max_height]
 
       tile = {
@@ -119,7 +135,7 @@ class CesiumjsTileset:
           'class': 'building',
           'properties': {
             'name': building.name,
-            'position': self._to_gps.transform(lower_corner[0], lower_corner[1]),
+            'position': self._to_gps.transform(lower_corner_coordinates[0], lower_corner_coordinates[1]),
             'aliases': building.aliases,
             'volume': building.volume,
             'floor_area': building.floor_area,
diff --git a/hub/exports/formats/glb.py b/hub/exports/formats/glb.py
index 558705c8..08776ccc 100644
--- a/hub/exports/formats/glb.py
+++ b/hub/exports/formats/glb.py
@@ -41,10 +41,13 @@ class Glb:
         subprocess.run([
           self._obj2gtl,
           '-i', f'{self._path}/{building.name}.obj',
-          '-o', f'{glb}',
           '-b',
-          '--normalTexture', f'{self._path}/{building.name}.mtl'
+          '-o', f'{glb}',
+          '--triangleWindingOrderSanitization',
+          '--inputUpAxis', 'Y',
+          '--outputUpAxis', 'Y'
         ])
+
         os.unlink(f'{self._path}/{building.name}.obj')
         os.unlink(f'{self._path}/{building.name}.mtl')
     except (subprocess.SubprocessError, subprocess.TimeoutExpired, subprocess.CalledProcessError) as err: