尝试降损失

brep2sdf/config/default_config.py

@@ -50,14 +50,14 @@ class TrainConfig:
     batch_size: int = 8
     num_workers: int = 4
     num_epochs1: int = 10000
-    num_epochs2: int = 1000
+    num_epochs2: int = 0
-    num_epochs3: int = 1000
+    num_epochs3: int = 0
     learning_rate: float = 0.1
     learning_rate_schedule: List = field(default_factory=lambda: [{
         "Type": "Step",  # 学习率调度类型。"Step"表示在指定迭代次数后将学习率乘以因子
         "Initial": 0.01,
         "Interval": 2000,
-        "Factor": 0.3
+        "Factor": 0.7
     }])
     min_lr: float = 1e-5
     weight_decay: float = 0.0001

brep2sdf/networks/decoder.py

@@ -41,7 +41,7 @@ class Decoder(nn.Module):
             lin = nn.Linear(dims_sdf[layer], out_dim)
             if geometric_init:
                 if layer == self.sdf_layers - 2:
-                    torch.nn.init.normal_(lin.weight, mean=np.sqrt(np.pi) / np.sqrt(dims_sdf[layer]), std=0.00001)
+                    torch.nn.init.normal_(lin.weight, mean=np.sqrt(np.pi) / np.sqrt(dims_sdf[layer]), std=0.1)
                     torch.nn.init.constant_(lin.bias, -radius_init)
                 else:
                     torch.nn.init.constant_(lin.bias, 0.0)
@@ -59,13 +59,13 @@ class Decoder(nn.Module):
                 nn.Softplus(beta=beta)
             )
             if beta > 0:
-                self.activation = nn.Softplus(beta=beta)
+                self.activation = nn.SiLU() 
             # vanilla relu
             else:
                 self.activation = nn.ReLU()
         else:
             #siren
-            self.activation = Sine()
+            self.activation = nn.SiLU() 
         self.final_activation = nn.Tanh()
 
     def forward(self, feature_matrix: torch.Tensor) -> torch.Tensor:

brep2sdf/networks/loss.py

@@ -182,6 +182,49 @@ class LossManager:
         
         return total_loss, loss_details
 
+    def compute_loss_stage1(self, 
+                mnfld_pnts,
+                normals,
+                gt_sdfs,
+                mnfld_pred,
+                ):
+        """
+        计算流型损失的逻辑
+
+        :param outputs: 模型的输出
+        :return: 计算得到的流型损失值     
+        """
+        # 强制类型转换确保一致性
+        normals = normals.to(torch.float32)
+        mnfld_pred = mnfld_pred.to(torch.float32)
+        gt_sdfs = gt_sdfs.to(torch.float32)
+    
+        # 计算流形损失 
+        manifold_loss = self.position_loss(mnfld_pred, gt_sdfs)
+        
+        # 计算法线损失
+        normals_loss = self.normals_loss(normals, mnfld_pnts, mnfld_pred)
+        #logger.gpu_memory_stats("计算法线损失后")
+
+
+        # 计算一致性损失
+        #onsistency_loss = self.consistency_loss(mnfld_pnts, mnfld_pred, all_fi)
+
+        # 计算修正损失
+        #correction_loss = self.correction_loss(mnfld_pnts, mnfld_pred, all_fi)
+
+
+        # 汇总损失
+        loss_details = {
+            "manifold": self.weights["manifold"] * manifold_loss,
+            "normals": self.weights["normals"] * normals_loss
+        }
+        
+        # 计算总损失
+        total_loss = sum(loss_details.values())
+        
+        return total_loss, loss_details
+
     def compute_loss_volume(self, 
                 mnfld_pnts,
                 nonmnfld_pnts,

brep2sdf/networks/network.py

@@ -58,8 +58,8 @@ class Net(nn.Module):
                  volume_bboxs,
                  feature_dim=8, 
                  decoder_output_dim=1, 
-                 decoder_hidden_dim=256, 
+                 decoder_hidden_dim=512, 
-                 decoder_num_layers=4, 
+                 decoder_num_layers=6, 
                  decoder_activation='relu', 
                  decoder_skip_connections=True):
     
@@ -77,7 +77,7 @@ class Net(nn.Module):
         self.decoder = Decoder(
             d_in=feature_dim,
             dims_sdf=[decoder_hidden_dim] * decoder_num_layers,
-            geometric_init=True,
+            geometric_init=False,
             beta=5
         )