oh, looked at file. forgor \n

app.py

@@ -25,7 +25,7 @@ def get_depth(rgb):
     positions[:, :-1] *= positions[:, -1:]
     positions[:, :2] *= -1
 
-    pick_edges = depth > 0
+    pick_edges = depth < 0
     y, x = (t.flatten() for t in np.mgrid[0:h, 0:w])
     faces = np.concatenate((
         np.stack((y * w + x,
@@ -49,9 +49,9 @@ def save_obj(positions, rgb, faces, filename):
     with open(filename, "w") as f:
         for position, color in zip(positions, rgb):
             f.write(
-                f"v {' '.join(map(str, position))} {' '.join(map(str, color))}")
+                f"v {' '.join(map(str, position))} {' '.join(map(str, color))}\n")
         for face in faces:
-            f.write(f"f {' '.join(map(str, face))}")
+            f.write(f"f {' '.join(map(str, face))}\n")
 
 
 gr.Interface(fn=get_depth, inputs=[