diff --git a/models/tensorBase.py b/models/tensorBase.py
index 0eb863d..7aced71 100644
--- a/models/tensorBase.py
+++ b/models/tensorBase.py
@@ -307,7 +307,7 @@ def getDenseAlpha(self,gridSize=None):
             torch.linspace(0, 1, gridSize[0]),
             torch.linspace(0, 1, gridSize[1]),
             torch.linspace(0, 1, gridSize[2]),
-        ), -1).to(self.device)
+        ), -1, indexing='ij').to(self.device)
         dense_xyz = self.aabb[0] * (1-samples) + self.aabb[1] * samples
 
         # dense_xyz = dense_xyz