Update luciddreamer.py

luciddreamer.py

@@ -202,11 +202,14 @@ class LucidDreamer:
         return outfile
     
     def save_ply(self, fpath=None):
+        dpath = os.path.join(self.root, self.timestamp)
+        os.makedirs(dpath, exist_ok=True)
         if fpath is None:
             dpath = os.path.join(self.root, self.timestamp)
             fpath = os.path.join(dpath, 'gsplat.ply')
             os.makedirs(dpath, exist_ok=True)
         if not os.path.exists(fpath):
+            os.makedirs(fpath, exist_ok=True)
             self.gaussians.save_ply(fpath)
         else:
             self.gaussians.load_ply(fpath)
@@ -573,4 +576,4 @@ class LucidDreamer:
                 })
 
         progress(1, desc='[3/4] Baking Gaussians...')
-        return traindata
+        return traindata