diff --git a/voxelisation.py b/voxelisation.py
index 2026263..5f16c42 100644
--- a/voxelisation.py
+++ b/voxelisation.py
@@ -1,4 +1,5 @@
 import os
+import pickle
 
 import mcubes
 import numpy as np
@@ -167,6 +168,10 @@ fg_sigma = np.array(fg_raw_voxel)
 # bg_sigma = np.array(bg_raw_voxel)
 threshold = 0.5
 
+# save the raw_voxel in pickle format
+fd = open("raw_voxel_256.pkl", "wb")
+pickel.dump(fg_sigma, fd)
+fd.close()
 
 # vertices, triangles = mcubes.marching_cubes(sigma, threshold)
 # mesh = trimesh.Trimesh(vertices / N - .5, triangles)