diff --git a/brep2sdf/train.py b/brep2sdf/train.py
index 543c082..967526e 100644
--- a/brep2sdf/train.py
+++ b/brep2sdf/train.py
@@ -319,16 +319,19 @@ class Trainer:
         if epoch % 10 == 1 or self.cached_train_data is None:
             # 计算流形点的掩码和操作符
             # 生成非流形点
-            _nonmnfld_pnts, _psdf = self.sampler.get_norm_points(_mnfld_pnts, _normals)
+            _psdf_pnts, _psdf = self.sampler.get_norm_points(_mnfld_pnts, _normals,local_sigma=0.001)
+            _nonmnfld_pnts = self.sampler.get_points(_mnfld_pnts, local_sigma=0.01):
             
             # 更新缓存
             self.cached_train_data = {
                 "nonmnfld_pnts": _nonmnfld_pnts,
+                "psdf_pnts": _psdf_pnts,
                 "psdf": _psdf,
             }
         else:
             # 从缓存中读取数据
             _nonmnfld_pnts = self.cached_train_data["nonmnfld_pnts"]
+            _psdf_pnts =  self.cached_train_data["psdf_pnts"]
             _psdf = self.cached_train_data["psdf"]
         
         logger.debug((_mnfld_pnts, _nonmnfld_pnts, _psdf))
@@ -350,11 +353,13 @@ class Trainer:
             
             # 非流形点使用缓存数据（整个batch共享）
             nonmnfld_pnts = _nonmnfld_pnts[start_idx:end_idx]
+            psdf_pnts = _psdf_pnts[start_idx:end_idx]
             psdf = _psdf[start_idx:end_idx]
 
             # --- 准备模型输入，启用梯度 ---
             mnfld_pnts.requires_grad_(True) # 在检查之后启用梯度
             nonmnfld_pnts.requires_grad_(True) # 在检查之后启用梯度
+            psdf_pnts.requires_grad_(True) # 在检查之后启用梯度
 
             # --- 前向传播 ---
             mnfld_pred = self.model.forward_background(
@@ -363,6 +368,9 @@ class Trainer:
             nonmnfld_pred = self.model.forward_background(
                 nonmnfld_pnts
             )
+            psdf_pred = self.model.forward_background(
+                psdf_pnts
+            )
 
 
 
@@ -382,6 +390,7 @@ class Trainer:
                     loss, loss_details = self.loss_manager.compute_loss(
                         mnfld_pnts,
                         nonmnfld_pnts,
+                        psdf_pnts,
                         normals, # 传递检查过的 normals
                         gt_sdf,
                         mnfld_pred,